A Study of Encorafenib Plus Cetuximab With or Without Chemotherapy in People With Previously Untreated Metastatic Colorectal Cancer

May 15, 2026 updated by: Pfizer

AN OPEN-LABEL, MULTICENTER, RANDOMIZED PHASE 3 STUDY OF FIRST-LINE ENCORAFENIB PLUS CETUXIMAB WITH OR WITHOUT CHEMOTHERAPY VERSUS STANDARD OF CARE THERAPY WITH A SAFETY LEAD-IN OF ENCORAFENIB AND CETUXIMAB PLUS CHEMOTHERAPY IN PARTICIPANTS WITH METASTATIC BRAF V600E-MUTANT COLORECTAL CANCER

The purpose of this study is to evaluate two study medicines (encorafenib plus cetuximab) taken alone or together with standard chemotherapy for the potential treatment of colorectal cancer that:

  • has spread to other parts of the body (metastatic);
  • has a certain type of abnormal gene called "BRAF"; and
  • has not received prior treatment.

Participants in this study will receive one of the following study treatments:

  • Encorafenib plus cetuximab: These participants will receive encorafenib by mouth at home every day and cetuximab once every two weeks by intravenous (IV) infusion (an injection into the vein) at the study clinic.
  • Encorafenib plus cetuximab with chemotherapy: These participants will receive encorafenib and cetuximab in the way described in the bullet above. Additionally, they will receive standard chemotherapy by IV infusion and oral treatment at home.
  • Chemotherapy alone: These participants will receive chemotherapy, the standard treatment for this condition, by IV infusion at the study clinics and oral treatment at home.

This study is currently enrolling participants who will receive either encorafenib plus cetuximab with chemotherapy or chemotherapy alone.

The study team will monitor how each participant responds to the study treatment for up to about 3 years.

Study Overview

Detailed Description

The purpose of the study is to evaluate whether encorafenib plus cetuximab (EC), alone or in combination with chemotherapy, can improve clinical outcomes relative to current standard of-care chemotherapy in participants with previously untreated BRAF V600E-mutant mCRC. Since encorafenib has not previously been combined with chemotherapy, the tolerability and PK of EC in combination with mFOLFOX6 and in combination with FOLFIRI will be evaluated in separate cohorts in the safety lead-in portion of the trial in order to identify which chemotherapy combination is to be used in the Phase 3 portion of the study.

Study Type

Interventional

Enrollment (Actual)

841

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Buenos Aires, Argentina, 1426
        • Instituto Médico Especializado Alexander Fleming
      • Córdoba, Argentina, X5004FHP
        • Clinica Universitaria Reina Fabiola
      • Córdoba, Argentina, X5016KEH
        • Hospital Privado Centro Médico de Córdoba
    • Tucumán Province
      • San Miguel de Tucumán, Tucumán Province, Argentina, 4000
        • Centro Medico San Roque
    • New South Wales
      • Camperdown, New South Wales, Australia, 2050
        • Chris O'Brien Lifehouse
      • Liverpool, New South Wales, Australia, 2170
        • Liverpool Hospital
      • St Leonards, New South Wales, Australia, 2065
        • GenesisCare North Shore
      • St Leonards, New South Wales, Australia, 2065
        • GenesisCare - North Shore
    • Queensland
      • Herston, Queensland, Australia, 4029
        • Royal Brisbane and Women's Hospital
      • Woolloongabba, Queensland, Australia, 4102
        • Princess Alexandra Hospital
    • South Australia
      • Adelaide, South Australia, Australia, 5011
        • The Queen Elizabeth Hospital
      • Adelaide, South Australia, Australia, 5000
        • Central Adelaide Local Health Network Incorporated
    • Victoria
      • Clayton, Victoria, Australia, 3168
        • Monash Health
      • Heidelberg, Victoria, Australia, 3084
        • Austin Health
      • Melbourne, Victoria, Australia, 3000
        • Peter MacCallum Cancer Centre
      • Melbourne, Victoria, Australia, 3004
        • Alfred Health
      • Antwerp, Belgium, 2020
        • ZNA Middelheim
      • Leuven, Belgium, 3000
        • UZ Leuven
      • Liège, Belgium, 4000
        • Centre Hospitalier Universitaire de Liège - Domaine Universitaire du Sart Tilman
      • Wilrijk, Belgium, 2610
        • ZAS Augustinus
    • Bruxelles-capitale, Région de
      • Brussels, Bruxelles-capitale, Région de, Belgium, 1070
        • Université Libre de Bruxelles - Hôpital Erasme
      • Brussels, Bruxelles-capitale, Région de, Belgium, 1200
        • Cliniques Universitaires Saint-Luc
    • Hainaut
      • Charleroi, Hainaut, Belgium, 6060
        • Grand Hôpital de Charleroi
    • West-vlaanderen
      • Kortrijk, West-vlaanderen, Belgium, 8500
        • AZ Groeninge Campus Kennedylaan
    • Rio Grande do Sul
      • Porto Alegre, Rio Grande do Sul, Brazil, 90035-903
        • Hospital de Clinicas de Porto Alegre
    • Rio de Janeiro
      • Rio de Janeiro, Rio de Janeiro, Brazil, 20230-130
        • Instituto Nacional de Câncer José Alencar Gomes da Silva - INCA
    • Santa Catarina
      • Blumenau, Santa Catarina, Brazil, 89010-340
        • Reichow - Centro de Ensino e Pesquisa
      • Itajaí, Santa Catarina, Brazil, 88301-220
        • Clínica de Neoplasias Litoral
    • São Paulo
      • Barretos, São Paulo, Brazil, 14784400
        • Fundação Pio XII - Hospital de Câncer de Barretos
      • Barretos, São Paulo, Brazil, 14.780-070
        • Fundação Pio XII - Hospital de Câncer de Barretos
      • Santo André, São Paulo, Brazil, 09060-650
        • CEPHO - Centro de Estudos e Pesquisas de Hematologia e Oncologia - Faculdade de Medicina do ABC
      • Santo André, São Paulo, Brazil, 09060-870
        • FUNDAÇÃO DO ABC - Faculdade de Medicina do ABC - Centro de Estudos e Pesquisas de Hematologia e Onco
      • São José do Rio Preto, São Paulo, Brazil, 15090000
        • Fundacao Faculdade Regional de Medicina de Sao Jose do Rio Preto
      • Gabrovo, Bulgaria, 5300
        • MHAT "Dr. Tota Venkova" AD
      • Plovdiv, Bulgaria, 4000
        • MHAT Central Onco Hospital OOD
      • Plovdiv, Bulgaria, 4004
        • Complex Oncology Center - Plovdiv EOOD
      • Sofia, Bulgaria, 1303
        • Medical Center Nadezhda Clinical EOOD
      • Sofia, Bulgaria, 1407
        • Acibadem City Clinic MHAT Tokuda
      • Sofia, Bulgaria, 1750
        • University Multiprofile Hospital for Active Treatment Sofiamed
    • Pazardzhik
      • Panagyurishte, Pazardzhik, Bulgaria, 4500
        • MHAT Uni Hospital OOD
    • Alberta
      • Calgary, Alberta, Canada, T2N 4N2
        • Alberta Health Services - Cancer Care, Tom Baker Cancer Centre
      • Calgary, Alberta, Canada, T3N 4N1
        • Arthur J.E. Child Comprehensive Cancer Centre
      • Edmonton, Alberta, Canada, T6G 1Z2
        • Cross Cancer Institute
      • Edmonton, Alberta, Canada, T6G 2C8
        • Alberta Health Services and The Governors of The University of Alberta
    • Ontario
      • London, Ontario, Canada, N6A 5W9
        • London Regional Cancer Program, London Health Sciences Centre
      • Toronto, Ontario, Canada, M4N 3M5
        • Sunnybrook Health Sciences Centre
    • Quebec
      • Montreal, Quebec, Canada, H3T 1E2
        • Jewish General Hospital
      • Shanghai, China, 201321
        • Fudan University Shanghai Cancer Center
      • Tianjin, China, 300000
        • Tianjin Union Medical Center
    • Beijing Municipality
      • Beijing, Beijing Municipality, China, 100142
        • Beijing Cancer Hospital
      • Beijing, Beijing Municipality, China, 100034
        • Peking University First Hospital
      • Beijing, Beijing Municipality, China, 100730
        • Beijing Hospital
      • Beijing, Beijing Municipality, China, 100021
        • Cancer Hospital Chinese Academy of Medical Science
    • Chongqing Municipality
      • Chongqing, Chongqing Municipality, China, 400030
        • Chongqing University Cancer Hospital
    • Fujian
      • Fuzhou, Fujian, China, 350001
        • Fujian Medical University Union Hospital
    • Guangdong
      • Guangzhou, Guangdong, China, 510655
        • The Sixth Affiliated Hospital of Sun Yat-sen University
    • Guangxi
      • Nanning, Guangxi, China, 530200
        • Affiliated Tumor Hospital of Guangxi Medical University
    • Hubei
      • Wuhan, Hubei, China, 430030
        • Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology
    • Hunan
      • Changsha, Hunan, China, 410013
        • The Third Xiangya Hospital of Central South University
      • Changsha, Hunan, China, 410011
        • The Second Xiangya Hospital of Central South University
    • Jiangsu
      • Nanjing, Jiangsu, China, 210008
        • Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School
    • Liaoning
      • Shenyang, Liaoning, China, 110022
        • Shengjing Hospital of China Medical University
    • Shandong
      • Jinan, Shandong, China, 250117
        • Shandong province cancer hospital
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200080
        • Shanghai General Hospital
      • Shanghai, Shanghai Municipality, China, 201800
        • Ruijin Hospital Shanghai Jiaotong University School of Medicine
    • Sichuan
      • Chengdu, Sichuan, China, 610041
        • Sichuan Province Cancer Hospital
    • Yunnan
      • Kunming, Yunnan, China, 650118
        • Yunnan Cancer Hospital(The Third Affiliated Hospital of Kunming Medical University)
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310000
        • The second Affiliated Hospital of College of Medicine, Zhejiang University
      • Olomouc, Czechia, 779 00
        • Fakultni nemocnice Olomouc
      • Prague, Czechia, 180 81
        • Fakultni nemocnice Bulovka
    • Brno-město
      • Brno, Brno-město, Czechia, 625 00
        • Fakultní nemocnice Brno Bohunice
    • Hradec Králové
      • Hradec Králové, Hradec Králové, Czechia, 500 05
        • Fakultni nemocnice Hradec Kralove
    • Praha 4
      • Prague, Praha 4, Czechia, 14059
        • Fakultni Thomayerova nemocnice
      • Copenhagen, Denmark, 2100
        • Rigshospitalet
      • Herlev, Denmark, 2730
        • Herlev and Gentofte Hospital
      • Odense C, Denmark, 5000
        • Odense University Hospital
    • North Denmark
      • Aalborg, North Denmark, Denmark, 9000
        • Aalborg Universitetshospital, Syd
    • Region Syddanmark
      • Vejle, Region Syddanmark, Denmark, 7100
        • Vejle Sygehus
      • Vejle, Region Syddanmark, Denmark, 7100
        • Vejle Hospital-Sygehus Lillebaelt
      • Oulu, Finland, 90220
        • Oulu University Hospital
      • Pori, Finland, 28500
        • Satakunnan Keskussairaala
      • Tampere, Finland, 33521
        • Tampereen yliopistollinen sairaala
      • Tampere, Finland, 33520
        • Tampereen yliopistollinen sairaala
      • Turku, Finland, 20520
        • Turku University Hospital
    • Southwest Finland
      • Turku, Southwest Finland, Finland, 20520
        • Turku University Hospital
    • Uusimaa
      • Helsinki, Uusimaa, Finland, 00290
        • Helsinki University Central Hospital
      • Helsinki, Uusimaa, Finland, 00180
        • Docrates Syöpäsairaala
      • Berlin, Germany, 10707
        • Onkologische Schwerpunktpraxis Kurfuerstendamm
      • Berlin, Germany, 13125
        • HELIOS Klinikum Berlin Buch GmbH
      • Charlottenburg, Germany, 10719
        • Radiologie Berlin
      • Dresden, Germany, 01307
        • Universitätsklinikum Carl Gustav Carus Dresden
      • Dresden, Germany, 01307
        • Technische Universität Dresden, Medizinische Fakultät Carl Gustav Carus
      • Hamburg, Germany, 20249
        • Facharztzentrum Eppendorf
      • Hamburg, Germany, 22045
        • ZytoService Deutschland GmbH, Standort-Hamburg-Jenfeld
      • Hamburg, Germany, 22297
        • Radiologie im Israelitischen Krankenhaus
    • Bavaria
      • Munich, Bavaria, Germany, 81737
        • Muenchen Klinik Neuperlach, Klinik fuer Haematologie und Onkologie
    • Hesse
      • Frankfurt am Main, Hesse, Germany, 60488
        • Institut für Klinisch Onkologische Forschung
    • Lower Saxony
      • Hanover, Lower Saxony, Germany, 30625
        • Medizinische Hochschule Hannover
    • Saxony
      • Leipzig, Saxony, Germany, 04103
        • Universitatsklinikum Leipzig
    • Maharashtra
      • Mumbai, Maharashtra, India, 400012
        • Tata Memorial Hospital
      • Pune, Maharashtra, India, 411 004
        • Deenanath Mangeshkar Hospital & Research Centre
      • Pune, Maharashtra, India, 411 004
        • Sahyadri Speciality Hospital
      • Thane, Maharashtra, India, 401107
        • Bhakti Vedanta Hospital and Research Institute
    • National Capital Territory of Delhi
      • New Delhi, National Capital Territory of Delhi, India, 110085
        • Rajiv Gandhi Cancer Institute And Research Centre
    • Rajasthan
      • Jaipur, Rajasthan, India, 302004
        • Sawai Man Singh Medical College Hospital (SMS Hospital)
      • Brescia, Italy, 25124
        • Fondazione Poliambulanza Istituto Ospedaliero
      • Milan, Italy, 20141
        • Istituto Europeo di Oncologia IRCCS
      • Naples, Italy, 80131
        • Azienda Ospedaliera Universitaria dell'Università "Luigi Vanvitelli" di Napoli
      • Padova, Italy, 35128
        • IRCCS Istituto Oncologico Veneto (IOV)
      • Reggio Emilia, Italy, 42123
        • Azienda USL - IRCCS di Reggio Emilia - Arcispedale Santa Maria Nuova
    • Cagliari
      • Monserrato (CA), Cagliari, Italy, 09042
        • Azienda Ospedaliera Universitaria di Cagliari - Presidio Policlinico Universitario "D.Casula"
    • Foggia
      • San Giovanni Rotondo, Foggia, Italy, 71013
        • IRCCS Casa Sollievo della Sofferenza
    • Milano
      • Milan, Milano, Italy, 20162
        • ASST Grande Ospedale Metropolitano Niguarda
    • Torino
      • Candiolo, Torino, Italy, 10060
        • Fondazione del Piemonte per l'Oncologia - Istituto di Candiolo IRCCS
      • Orbassano, Torino, Italy, 10043
        • Azienda Ospedaliero Universitaria San Luigi Gonzaga
      • Fukuoka, Japan, 811-1395
        • National Hospital Organization Kyushu Cancer Center
      • Osaka, Japan, 540-0006
        • National Hospital Organization - Osaka National Hospital - Institute For Clinical Research
    • Chiba
      • Chiba, Chiba, Japan, 260-8717
        • Chiba cancer center
      • Kashiwa, Chiba, Japan, 277-8577
        • National Cancer Center Hospital East
    • Hokkaido
      • Sapporo, Hokkaido, Japan, 060-8648
        • Hokkaido University Hospital
    • Ishikawa-ken
      • Kanazawa, Ishikawa-ken, Japan, 920-8641
        • Kanazawa University Hospital
    • Kanagawa
      • Kawasaki, Kanagawa, Japan, 216-8511
        • St. Marianna University Hospital
      • Yokohama, Kanagawa, Japan, 2418515
        • Kanagawa Cancer Center
    • Nagoya, Aichi
      • Nagoya, Nagoya, Aichi, Japan, 464-8681
        • Aichi Cancer Center Hospital
    • Osaka
      • Osaka, Osaka, Japan, 5418567
        • Osaka Prefectural Hospital Organization Osaka International Cancer Institute
      • Sayama, Osaka, Japan, 589-8511
        • Kindai University Hospital
      • Suita, Osaka, Japan, 565-0871
        • Osaka University Hospital
      • Takatsuki, Osaka, Japan, 569-8686
        • Osaka Medical and Pharmaceutical University Hospital
    • Saitama
      • Hidaka, Saitama, Japan, 350-1298
        • Saitama Medical University International Medical Center
      • Ina-machi, Saitama, Japan, 362-0806
        • Saitama Prefectural Cancer Center
    • Shizuoka
      • Nakatogari, Shizuoka, Japan, 411-8777
        • Shizuoka Cancer Center
    • Tokyo
      • Chuo-ku, Tokyo, Japan, 104-0045
        • National Cancer Center Hospital
      • Koto-ku, Tokyo, Japan, 135-8550
        • The Cancer Institute Hospital of JFCR
      • Shinjuku-ku, Tokyo, Japan, 160-8582
        • Keio University Hospital
      • Oaxaca City, Mexico, 68020
        • Centro de Investigacion Clinica de Oaxaca
    • Nuevo León
      • Monterrey, Nuevo León, Mexico, 64000
        • Accelerium, S. de R.L. de C.V.
      • Utrecht, Netherlands, 3584 CX
        • Universitair Medisch Centrum Utrecht
    • North Brabant
      • Eindhoven, North Brabant, Netherlands, 5623 EJ
        • Catharina Ziekenhuis
    • North Holland
      • Amsterdam, North Holland, Netherlands, 1066 CX
        • Nederlands Kanker Instituut - Antoni van Leeuwenhoek (NKI-AVL)
      • Auckland, New Zealand, 1023
        • Auckland City Hospital
      • Oslo, Norway, 0379
        • Oslo universitetssykehus, Radiumhospitalet
      • Oslo, Norway, 0450
        • Oslo Universitetssykehus Ullevål
    • Sør-trøndelag
      • Trondheim, Sør-trøndelag, Norway, 7030
        • St. Olavs hospital
    • Vest-agder
      • Kristiansand, Vest-agder, Norway, N-4615
        • Sørlandet Sykehus Kristiansand
      • Brzozów, Poland, 36-200
        • Szpital Specjalistyczny W Brzozowie, Podkarpacki Osrodek Onkologiczny Im.Ks.B.Markiewicza
      • Bytom, Poland, 41-902
        • Wojewodzki Szpital Specjalistyczny Nr 4 w Bytomiu Oddzial Onkologii
      • Gdansk, Poland, 80-219
        • COPERNICUS Podmiot Leczniczy Sp. z o.o. Wojewodzkie Centrum Onkologii
      • Gdansk, Poland, 80-219
        • COPERNICUS PL sp. z. o. o. Wojewodzkie Centrum Onkologii w Gdansku Ambulatoryjna
    • Greater Poland Voivodeship
      • Konin, Greater Poland Voivodeship, Poland, 62-500
        • Przychodnia Lekarska KOMED
      • Chelyabinsk, Russia, 454087
        • GBUZ
      • Kaluga, Russia, 248007
        • Kaluga Regional Clinical Oncology Center
      • Moscow, Russia, 119991
        • FSAEI HE I.M Sechenov First MSMU MoH Russia (Sechenovskiy University),
      • Omsk, Russia, 644013
        • BHI of Omsk Region "Clinical Oncology Dispensary"
      • Omsk, Russia, 644046
        • BHI of Omsk Region "Clinical Oncology Dispensary"
      • Saint Petersburg, Russia, 191025
        • LLC "Medicina Severnoy Stolitsy"
      • Saint Petersburg, Russia, 192007
        • LLC "Severo-Zapadny Medical Center"
      • Saint Petersburg, Russia, 195271
        • Private Healthcare Institution "Clinical Hospital "RZD-Medicine" of St. Petersburg
      • Saint Petersburg, Russia, 197022
        • LLC "EuroCityClinic"
      • Saint Petersburg, Russia, 197758
        • FSBI "Russian Scientific Center For Radiology and Surgical Technologies n.a. Academician A.M. Granov
      • Yaroslavl, Russia, 150054
        • SHI YR Regional Clinical Oncology Hospital
    • Sankt-Peterburg
      • Pushkin, Sankt-Peterburg, Russia, 196603
        • Private Medical Institution "Euromedservice"
      • Bratislava, Slovakia, 833 10
        • Narodny Onkologicky Ustav
      • Košice, Slovakia, 04191
        • Vychodoslovensky onkologicky ustav, a.s.
      • Johannesburg, South Africa, 2193
        • Wits Health Consortium (Pty) Ltd
    • CAPE TOWN
      • Rondebosch, CAPE TOWN, South Africa, 7700
        • Cancercare Rondebosch Oncology
    • Eastern Cape
      • Port Elizabeth, Eastern Cape, South Africa, 6045
        • Cancercare Langenhoven Drive Oncology Centre
      • Busan, South Korea, 49201
        • Dong-A University Hospital
      • Daegu, South Korea, 41404
        • Kyungpook National University Chilgok Hospital
      • Incheon, South Korea, 21565
        • Gachon University Gil Medical Center
      • Seoul, South Korea, 03080
        • Seoul National University Hospital
      • Seoul, South Korea, 05505
        • Asan Medical Center
      • Seoul, South Korea, 06351
        • Samsung Medical Center
      • Seoul, South Korea, 03722
        • Severance Hospital, Yonsei University Health System
      • Seoul, South Korea, 02841
        • Korea University Anam Hospital
    • Gyeonggi-do
      • Goyang-si, Gyeonggi-do, South Korea, 10408
        • National Cancer Center
      • Barcelona, Spain, 08035
        • Hospital Universitario Vall d'Hebron
      • Barcelona, Spain, 08036
        • Hospital Clinic Barcelona
      • Madrid, Spain, 28034
        • Hospital Universitario Ramón y Cajal
      • Madrid, Spain, 28041
        • Hospital Universitario 12 de Octubre
      • Madrid, Spain, 28007
        • Hospital General Universitario Gregorio Marañón
      • Seville, Spain, 41013
        • Hospital Universitario Virgen del Rocio
      • Valencia, Spain, 46010
        • Hospital Clinico Universitario de Valencia
      • Valencia, Spain, 46014
        • Hospital General Universitario de Valencia
      • Zaragoza, Spain, 50009
        • Hospital Universitario Miguel Servet
    • A Coruña
      • Santiago de Compostela, A Coruña, Spain, 15706
        • Complejo Hospitalario Universitario Santiago de Compostela
    • Alicante
      • Elche, Alicante, Spain, 03203
        • Hospital General Universitario de Elche
    • Barcelona
      • L'Hospitalet de Llobregat, Barcelona, Spain, 08908
        • ICO L'Hospitalet (Hospital Duran i Reynals)
      • Stockholm, Sweden, 171 76
        • Department of Pelvic cancer, colorecta section, Karolinska University Hospital
    • Stockholms LÄN [se-01]
      • Solna, Stockholms LÄN [se-01], Sweden, 171 64
        • Karolinska Universitetssjukhuset Solna
    • Uppsala LÄN [se-03]
      • Uppsala, Uppsala LÄN [se-03], Sweden, 751 85
        • Akademiska sjukhuset
    • Västerbottens LÄN [se-24]
      • Umeå, Västerbottens LÄN [se-24], Sweden, 90185
        • Norrlands universitetssjukhus
    • Västra Götalands LÄN [se14]
      • Gothenburg, Västra Götalands LÄN [se14], Sweden, 413 45
        • Sahlgrenska Universitetssjukhuset
      • Kaohsiung City, Taiwan, 807
        • Kaohsiung Medical University Chung-Ho Memorial Hospital
      • Taichung, Taiwan, 404
        • China Medical University Hospital
      • Tainan, Taiwan, 704
        • National Cheng-Kung University Hospital
      • Tainan, Taiwan, 73657
        • Chi Mei Hospital, Liouying
      • Taipei, Taiwan, 100
        • National Taiwan University Hospital
      • Taipei, Taiwan, 11031
        • Taipei Medical University Hospital
      • Taipei, Taiwan, 112
        • Taipei Veterans General Hospital
      • Taoyuan, Taiwan, 333
        • Chang Gung Medical Foundation-Linkou Branch
      • Dnipro, Ukraine, 49102
        • Municipal Non-profit Enterprise "City Clinical Hospital #4" of Dnipro City Council
      • Ivano-Frankivsk, Ukraine, 76018
        • Ivano-Frankivsk National Medical University
      • Ivano-Frankivsk, Ukraine, 76018
        • MNPE "Prykarpatski Clinical Oncological Center" of Ivano-Frankivsk Regional Council"
      • Kryvyi Rih, Ukraine, 50048
        • Communal enterprise "Kryvyi Rih Oncology Dispensary" of Dnipropetrovsk Regional Council
      • Birmingham, United Kingdom, B9 5SS
        • Heartlands Hospital
      • London, United Kingdom, W12 0HS
        • Hammersmith Hospital, Imperial College Healthcare NHS Trust
      • London, United Kingdom, W6 8RF
        • Hammersmith Hospital
      • Oxford, United Kingdom, OX3 7LE
        • Churchill Hospital - Oncology
    • HIGH Heaton
      • Newcastle upon Tyne, HIGH Heaton, United Kingdom, NE7 7DN
        • Freeman Hospital
    • Surrey
      • Sutton, Surrey, United Kingdom, SM2 5PT
        • Royal Marsden NHS Foundation Trust
    • Arizona
      • Phoenix, Arizona, United States, 85054
        • Mayo Clinic Hospital
      • Scottsdale, Arizona, United States, 85259
        • Mayo Clinic in Arizona - Scottsdale
    • California
      • Los Angeles, California, United States, 90033
        • USC / Norris Comprehensive Cancer Center
      • Los Angeles, California, United States, 90033
        • USC/Norris Comprehensive Cancer Center
      • Los Angeles, California, United States, 90033
        • Keck Hospital of USC
      • Los Angeles, California, United States, 90033
        • LAC & USC Medical Center
      • Los Angeles, California, United States, 90033
        • USC/Norris Comprehensive Cancer Center/Investigational Drug Services
      • Pasadena, California, United States, 91105
        • Keck Hospital of USC Pasadena
    • Florida
      • Aventura, Florida, United States, 33180
        • Mount Sinai Comprehensive Cancer Center, Aventura
      • Miami Beach, Florida, United States, 33140
        • Mount Sinai Medical Center
      • Miami Beach, Florida, United States, 33140
        • Mount Sinai Comprehensive Cancer Center
      • Plantation, Florida, United States, 33322
        • BRCR Medical Center Inc.
      • Plantation, Florida, United States, 33322
        • BRCR Global
    • Illinois
      • Chicago, Illinois, United States, 60637
        • University of Chicago Medical Center
      • Chicago, Illinois, United States, 60611
        • UChicago Medicine - River East
      • Flossmoor, Illinois, United States, 60422
        • UChicago Medicine at Ingalls - Flossmoor
      • Harvey, Illinois, United States, 60426
        • UChicago Medicine Ingalls Memorial
      • New Lenox, Illinois, United States, 60451
        • University of Chicago Comprehensive Cancer Center at Silver Cross Hospital
      • Orland Park, Illinois, United States, 60462
        • The University of Chicago Medicine Center for Advanced Care Orland Park
      • Tinley Park, Illinois, United States, 60477
        • UChicago Medicine at Ingalls - Tinley Park
    • Louisiana
      • New Orleans, Louisiana, United States, 70121
        • Ochsner Clinic Foundation
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic Rochester
    • Missouri
      • City of Saint Peters, Missouri, United States, 63376
        • Siteman Cancer Center - St Peters
      • Creve Coeur, Missouri, United States, 63141
        • Siteman Cancer Center - West County
      • Florissant, Missouri, United States, 63031
        • Siteman Cancer Center - North County
      • St Louis, Missouri, United States, 63110
        • Washington University School of Medicine
      • St Louis, Missouri, United States, 63129
        • Siteman Cancer Center - South County
      • St Louis, Missouri, United States, 63110
        • Barnes- Jewish Hospital
    • Nebraska
      • Omaha, Nebraska, United States, 68130
        • Oncology Hematology West PC dba Nebraska Cancer Specialists
      • Omaha, Nebraska, United States, 68124
        • Oncology Hematology West PC dba Nebraska Cancer Specialists
      • Omaha, Nebraska, United States, 68114
        • Oncology Hematology West PC dba Nebraska Cancer Specialists
      • Papillion, Nebraska, United States, 68046
        • Oncology Hematology West PC dba Nebraska Cancer Specialists
    • New Jersey
      • Basking Ridge, New Jersey, United States, 07920
        • Memorial Sloan Kettering Cancer Center - Basking Ridge
      • Berkeley Heights, New Jersey, United States, 07922
        • Summit Medical Group
      • Florham Park, New Jersey, United States, 07932
        • Summit Medical Group
      • Middletown, New Jersey, United States, 07748
        • Memorial Sloan Kettering Cancer Center- Monmouth
      • Montvale, New Jersey, United States, 07645
        • Memorial Sloan Kettering Cancer Center- Bergen
    • New York
      • Commack, New York, United States, 11725
        • Memorial Sloan Kettering Cancer Center Commack
      • Harrison, New York, United States, 10604
        • Memorial Sloan Kettering Cancer Center - Westchester
      • New York, New York, United States, 10022
        • Memorial Sloan Kettering Cancer Center
      • New York, New York, United States, 10065
        • Memorial Sloan Kettering Cancer Center - Main Campus
      • Uniondale, New York, United States, 11553
        • Memorial Sloan Kettering Cancer Center- Nassau
    • Ohio
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic
      • Cleveland, Ohio, United States, 44195
        • Cleveland Clinic Taussig Cancer Center Investigational Pharmacy
      • Columbus, Ohio, United States, 43221
        • Martha Morehouse Medical Plaza
      • Columbus, Ohio, United States, 43210
        • The Ohio State University James Cancer Hospital and Solove Research Institute
      • Columbus, Ohio, United States, 43212
        • Stefanie Spielman Comprehensive Breast Cancer
      • Columbus, Ohio, United States, 43210
        • The Ohio State University Wexner Medical Center Investigational Drug Services
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73104
        • University of Oklahoma Health Sciences Center, OU Health Stephenson Cancer Center
    • Oregon
      • Portland, Oregon, United States, 97213
        • Providence Cancer Institute Franz Clinic
      • Portland, Oregon, United States, 97213
        • Providence Portland Medical Center
      • Portland, Oregon, United States, 97225
        • Providence St Vincent Medical Center
      • Portland, Oregon, United States, 97225
        • Providence Onc and Heme Care Clinic - Westside
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15232
        • UPMC Hillman Cancer Center
    • Tennessee
      • Germantown, Tennessee, United States, 38138
        • The West Clinic. PLLC. dba West Cancer Center
      • Nashville, Tennessee, United States, 37232
        • Vanderbilt-Ingram Cancer Center
      • Nashville, Tennessee, United States, 37232
        • Henry-Joyce Cancer Clinic
    • Texas
      • Houston, Texas, United States, 77030
        • The University of Texas MD Anderson Cancer Center
    • Virginia
      • Richmond, Virginia, United States, 23219
        • Virginia Commonwealth University
    • Washington
      • Seattle, Washington, United States, 98109
        • Seattle Cancer Care Alliance
      • Seattle, Washington, United States, 98195
        • University of Washington Medical Center
    • Wisconsin
      • Madison, Wisconsin, United States, 53792
        • University of Wisconsin Clinical Science Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Safety Lead-In = Male/female ≥ 18 years old
  • Phase 3 and Cohort 3: Male/female ≥ 16 years old (where permitted locally)
  • Histologically or cytologically confirmed Stage IV CRC that contains BRAF V600E mutation
  • Prior systemic treatment in metastatic setting: 0-1 regimens for Safety Lead In; none for Phase 3 and Cohort 3. (Note: Prior adjuvant or neoadjuvant therapy considered metastatic treatment if relapse/metastasis < 6 month from end of adj/neoadjuvant treatment )
  • Measurable disease (Phase 3 and Cohort 3)/ Measurable or evaluable disease (Safety Lead-in)
  • ECOG PS 0-1
  • Adequate organ function

Exclusion Criteria:

  • Tumors that are locally confirmed or unknown MSI-H or dMMR unless participant is ineligible to receive immune checkpoint inhibitors due to a pre-existing medical condition
  • Active bacterial or viral infections in 2 weeks prior to starting dosing
  • Symptomatic brain metastases

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Safety Lead-in Cohort 1
Encorafenib 300 mg orally once daily Cetuximab 500 mg/m2 (120-minute IV infusion) every two weeks Irinotecan 180 mg/m2 (90-minute IV infusion) every two weeks Leucovorin 400 mg/m2 (120-minute IV infusion) every two weeks 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours every two weeks
75 mg capsules
Other Names:
  • Braftovi, PF-07263896, LGX818, ONO-7702
Injection for intravenous use 100 mg/vial, 200 mg/vial, or 500 mg/vial
Other Names:
  • Erbitux
Solution for intravenous infusion 40 mg/vial, 100 mg/vial, or 300 mg/vial
Other Names:
  • Campostar
Injection 50 mg/vial, 100 mg/vial, 200 mg/vial, or 350 mg/vial
Other Names:
  • Wellcovorin, Fusilev, Khapzory
Injection for intravenous use 250 mg/vial, 500 mg/vial, or 1000 mg/vial
Other Names:
  • Fluorouracil
Experimental: Safety Lead-in Cohort 2
Encorafenib 300 mg orally once daily Cetuximab 500 mg/m2 (120 minute IV infusion) every two weeks Oxaliplatin 85 mg/m2 (120-minute IV infusion) every two weeks Leucovorin 400 mg/m2 (120-minute IV infusion) every two weeks 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours every two weeks
75 mg capsules
Other Names:
  • Braftovi, PF-07263896, LGX818, ONO-7702
Injection for intravenous use 100 mg/vial, 200 mg/vial, or 500 mg/vial
Other Names:
  • Erbitux
Injection 50 mg/vial, 100 mg/vial, 200 mg/vial, or 350 mg/vial
Other Names:
  • Wellcovorin, Fusilev, Khapzory
Injection for intravenous use 250 mg/vial, 500 mg/vial, or 1000 mg/vial
Other Names:
  • Fluorouracil
Powder for solution for intravenous use 50 mg/vial, 100 mg/vial, or 200 mg/vial
Other Names:
  • Eloxatin
Experimental: Phase 3 Arm A
Encorafenib 300 mg orally once daily Cetuximab 500 mg/m2 (120-minute IV infusion) every two weeks
75 mg capsules
Other Names:
  • Braftovi, PF-07263896, LGX818, ONO-7702
Injection for intravenous use 100 mg/vial, 200 mg/vial, or 500 mg/vial
Other Names:
  • Erbitux
Experimental: Phase 3 Arm B
Encorafenib 300 mg orally once daily Cetuximab 500 mg/m2 (120 minute IV infusion) every two weeks Oxaliplatin 85 mg/m2 (120-minute IV infusion) every two weeks Leucovorin 400 mg/m2 (120-minute IV infusion) every two weeks 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours every two weeks
75 mg capsules
Other Names:
  • Braftovi, PF-07263896, LGX818, ONO-7702
Injection for intravenous use 100 mg/vial, 200 mg/vial, or 500 mg/vial
Other Names:
  • Erbitux
Injection 50 mg/vial, 100 mg/vial, 200 mg/vial, or 350 mg/vial
Other Names:
  • Wellcovorin, Fusilev, Khapzory
Injection for intravenous use 250 mg/vial, 500 mg/vial, or 1000 mg/vial
Other Names:
  • Fluorouracil
Powder for solution for intravenous use 50 mg/vial, 100 mg/vial, or 200 mg/vial
Other Names:
  • Eloxatin
Active Comparator: Phase 3 Arm C
Every two weeks: Oxaliplatin 85 mg/m2 (120-minute IV infusion) Leucovorin 400 mg/m2 (120-minute IV infusion) 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours Bevacizumab (optional; given per prescribing instructions) -OR- Every two weeks: Irinotecan 165 mg/m2 (90-minute IV infusion) Oxaliplatin 85 mg/m2 (120-minute IV infusion) Leucovorin 400 mg/m2 (120-minute IV infusion) 5-FU 2400 or 3200 mg/m2 continuous IV infusion over 46 48 hours Bevacizumab (optional; given per prescribing instructions) -OR- Oxaliplatin 130 mg/m2 (120-minute IV infusion) every 3 weeks Capecitabine 1000 mg/m2 oral tablet twice daily on Days 1-14 Bevacizumab (optional; given per prescribing instructions)
Solution for intravenous infusion 40 mg/vial, 100 mg/vial, or 300 mg/vial
Other Names:
  • Campostar
Injection 50 mg/vial, 100 mg/vial, 200 mg/vial, or 350 mg/vial
Other Names:
  • Wellcovorin, Fusilev, Khapzory
Injection for intravenous use 250 mg/vial, 500 mg/vial, or 1000 mg/vial
Other Names:
  • Fluorouracil
Powder for solution for intravenous use 50 mg/vial, 100 mg/vial, or 200 mg/vial
Other Names:
  • Eloxatin
150 mg or 500 mg Tablet
Other Names:
  • Xeloda
Optional Injection for intravenous use 100 mg/vial or 400 mg/vial
Other Names:
  • Zirabev
Experimental: Cohort 3 Arm D
Encorafenib 300 mg orally once daily Cetuximab 500 mg/m2 (120-minute IV infusion) every two weeks Irinotecan 180 mg/m2 (90-minute IV infusion) every two weeks Leucovorin 400 mg/m2 (120-minute IV infusion) every two weeks 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours every two weeks
75 mg capsules
Other Names:
  • Braftovi, PF-07263896, LGX818, ONO-7702
Injection for intravenous use 100 mg/vial, 200 mg/vial, or 500 mg/vial
Other Names:
  • Erbitux
Solution for intravenous infusion 40 mg/vial, 100 mg/vial, or 300 mg/vial
Other Names:
  • Campostar
Injection 50 mg/vial, 100 mg/vial, 200 mg/vial, or 350 mg/vial
Other Names:
  • Wellcovorin, Fusilev, Khapzory
Injection for intravenous use 250 mg/vial, 500 mg/vial, or 1000 mg/vial
Other Names:
  • Fluorouracil
Active Comparator: Cohort 3 Arm E
Irinotecan 180 mg/m2 (90-minute IV infusion) every 2 weeks, Leucovorin 400 mg/m2 (120-minute IV infusion) every 2 weeks, 5-FU 400 mg/m2 IV bolus, then 5-FU 2400 mg/m2 continuous IV infusion over 46-48 hours every two weeks, Bevacizumab (optional; given per prescribing instructions)
Solution for intravenous infusion 40 mg/vial, 100 mg/vial, or 300 mg/vial
Other Names:
  • Campostar
Injection 50 mg/vial, 100 mg/vial, 200 mg/vial, or 350 mg/vial
Other Names:
  • Wellcovorin, Fusilev, Khapzory
Injection for intravenous use 250 mg/vial, 500 mg/vial, or 1000 mg/vial
Other Names:
  • Fluorouracil
Optional Injection for intravenous use 100 mg/vial or 400 mg/vial
Other Names:
  • Zirabev

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
SLI: Number of Participants With Dose Limiting Toxicity (DLTs)
Time Frame: Cycle 1 (28 days)
DLT: Any AE/lab value during first 28 days (D) of treatment that met at least 1 criteria: AE/lab value unrelated to underlying disease,PD,intercurrent illness,concomitant medications resulting in inability to tolerate atleast 75% of planned dose intensity of study drug,fatigue grade (G)3>14 consecutive D, interstitial lung disease G>=2,rash,hand foot skin reaction G3>14 consecutive D or G4,diarrhea G3 >=48 hours or G4,nausea/vomiting G3>=48 hours or G4,mucositis G>=3,total bilirubin G>=3, aspartate aminotransferase/alanine aminotransferase G>=3 in conjunction with total bilirubin G>=2 or G3 >7 consecutive D or G4,Serum creatinine G>=3,absolute neutrophil count G4 >7 consecutive D, >=G3 febrile neutropenia,G3 platelet count decreased with signs of bleeding,platelet count G4,ECG QTcF prolonged >=G3,G>=3 uveitis >21 consecutive D,G4 confirmed by ophthalmic examination,paresthesia/dysesthesias G>=3,other G>=3 hematologic/nonhematologic toxicity except lymphocyte count decreased G>=3.
Cycle 1 (28 days)
Phase 3: Progression Free Survival (PFS) as Assessed by Blinded Independent Central Review (BICR) for Arm B vs Arm C - FAS
Time Frame: From date of randomization to earliest documentation of PD by BICR or death or censoring date, whichever occurred first (maximum up to 37.25 months)
PFS was defined as the time from date of randomization to earliest documented disease progression (PD) per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 or death due to any cause as assessed by BICR. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 millimeter (mm) for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Censoring details: no adequate baseline assessment, including no disease at baseline: participants were censored to randomization date; no PD, lost to follow-up, withdrawal of consent, PD or death >12 (or 16) weeks after the last adequate tumor assessment, and start of new anticancer treatment: participants were censored to last adequate tumor assessment documenting no PD prior to new anticancer therapy, or missed assessments. Analysis was performed using Kaplan Meier method.
From date of randomization to earliest documentation of PD by BICR or death or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: Objective Response Rate (ORR) as Assessed by BICR for Arm B vs Arm C - FAS ORR Subset
Time Frame: From date of randomization to until documented PD by BICR, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 24.71 months)
ORR was defined as the percentage of participants who achieved best overall response (BOR) of confirmed complete response (CR) or partial response (PR) according to RECIST v 1.1 as assessed by BICR. CR: complete disappearance of all target lesions (with the exception of nodal disease) and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >=30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion.
From date of randomization to until documented PD by BICR, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 24.71 months)
Cohort 3: ORR as Assessed by BICR for Arm D vs Arm E - FAS
Time Frame: From date of randomization until documented PD by BICR, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 14.1 months)
ORR was defined as the percentage of participants who achieved BOR of confirmed CR or PR according to RECIST v 1.1 as assessed by BICR. CR: complete disappearance of all target lesions (with the exception of nodal disease) and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >=30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion.
From date of randomization until documented PD by BICR, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 14.1 months)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
SLI: Number of Participants With Adverse Events (AEs)
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether/ not considered related to study intervention. An Serious adverse event (SAE) was defined as any untoward medical occurrence that, at any dose, met one or more of the following criteria - resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, or other important medical event. AEs included both SAEs and all non-SAEs.
Through end of the study
SLI: Number of Participants With Grade 3 or 4 AEs and Grade 5 AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether or not considered related to study intervention. AEs were graded according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) version (v) 4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening and grade 5= death related to AE. In this outcome measure, number of participants with grade 3 or 4 AEs and grade 5 AEs were reported.
Through end of the study
SLI: Number of Participants With Shift From Grade <=2 at Baseline to Grade >=3 Post-Baseline in Hematology and Coagulation Parameters
Time Frame: Through end of the study
The following hematology and coagulation parameters were assessed: activated partial thromboplastin time prolonged, anemia, hemoglobin increased, international normalized ratio (INR) increased, leukocytosis, neutrophil count decreased, platelet count decreased, and white blood cell decreased. Laboratory abnormalities were graded according to NCI CTCAE version 4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening event due to AE, and grade 5= death. Only those hematology and coagulation parameters in which at least 1 participant in any of the reporting arm had any shift from grade <=2 at baseline to grade >=3 post-baseline are reported in this outcome measure.
Through end of the study
SLI: Number of Participants With Shift From Grade <=2 at Baseline to Grade >=3 Post-Baseline in Chemistry Parameters
Time Frame: Through end of the study
The following chemistry parameters were assessed: alanine aminotransferase increased, alkaline phosphatase increased, aspartate aminotransferase increased, blood bilirubin increased, creatinine increased, hypercalcemia, hyperglycemia, hyperkalemia, hypermagnesemia, hypernatremia, hypoalbuminemia, hypocalcemia, hypoglycemia, hypokalemia, hypomagnesemia, hyponatremia, and lipase increased. Laboratory abnormalities were graded according to NCI CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening, and grade 5= death related to AE. Only those chemistry parameters in which at least 1 participant in any of the reporting arm had any shift from grade <=2 at baseline to grade >=3 post-baseline are reported in this outcome measure.
Through end of the study
SLI: Number of Participants According to Categorization of Vital Signs Data
Time Frame: Through end of the study
The criteria for vital signs included: Systolic blood pressure (millimeters of mercury [mmHg]): value <= 90 mmHg and decrease from baseline >= 20 mmHg, and value >= 160 mmHg and increase from baseline >= 20 mmHg. Diastolic blood pressure (mmHg): value <= 50 mmHg and decrease from baseline >= 15 mmHg, and value >= 100 mmHg and increase from baseline >= 15 mmHg. Pulse rate (beats per minute [bpm]): value <= 50 bpm and decrease from baseline >= 15 bpm, and value >= 120 bpm and increase from baseline >= 15 bpm. Weight (kilograms [kg]): change >= 20 % decrease from baseline, and change >=10% increase from baseline. Temperature (degree Celsius): value <=36 degree Celsius, and value >=37.5 degree Celsius. Only those criteria in which at least 1 participant in any of the reporting arm had any vital signs data are reported in this outcome measure.
Through end of the study
SLI: Number of Participants According to Categorization of Electrocardiogram (ECGs) Findings
Time Frame: Through end of the study
ECG criteria included: ECG mean heart rate (beats per minute [bpm]): increase from baseline >25% and to a value >100 bpm; decrease from baseline >25% and to a value <50 bpm, PR interval not otherwise specified (milliseconds [msec]): new >280 msec, QRS interval not otherwise specified (msec): new >120 msec, QT Interval Corrected Using Fridericia's Formula (QTcF) not otherwise specified: new >450 msec; new >480 msec; new >500 msec; increase from baseline >30 msec and increase from baseline >60 msec. Only those criteria in which at least 1 participant in any of the reporting arm had any ECG findings are reported in this outcome measure.
Through end of the study
SLI: Number of Participants With Dose Modification of Any Study Intervention Due to AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether or not considered related to study intervention. Dose interruption: for encorafenib = 0 mg dose administered for >=1 days; for cetuximab, oxaliplatin, leucovorin, fluorouracil, irinotecan: >20 days between successive start dates with non-zero actual doses. Dose reduction: decrease in dose of at least 10%, from the protocol-planned dose and a decrease from the previous non-zero dose; for encorafenib to qualify as a dose reduction, it should have lasted for >=2 days. Dose modifications included both dose interruptions and reduction.
Through end of the study
SLI: Number of Participants With Dose Discontinuation of Any Study Intervention Due to AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether or not considered related to study intervention. Number of participants with dose discontinuation due to AEs were reported in this outcome measure.
Through end of the study
SLI: ORR as Assessed by Investigator According to Line of Therapy - FAS
Time Frame: From date of randomization until documented PD, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 33.9 months)
ORR: percentage of participants who achieved BOR of confirmed CR/PR per RECIST v1.1 as assessed by response reported by investigator on eCRF. CR: complete disappearance of all target lesions (with exception of nodal disease) and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis <10 mm. PR: >=30% decrease under baseline of sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Percentage of participants with ORR for first line (no prior treatment) and second line (participant received prior treatment viz. advanced/metastatic or locoregional disease or maintenance or if neoadjuvant/adjuvant with a disease recurrence occurred during or within 6 months of last therapy dose) is presented.
From date of randomization until documented PD, or start of subsequent anticancer therapy or death, whichever occurred first (maximum up to 33.9 months)
SLI: Duration of Response (DOR) as Assessed by Investigator According to Line of Therapy - FAS
Time Frame: From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause whichever occurred first (maximum up to 33.9 months)
DOR: time from date of first radiographic evidence of response (CR/PR) to earliest documented PD per RECIST v1.1 as assessed by response reported by investigator on eCRF, or death by any cause. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis <10 mm. PR: >=30% decrease under baseline of sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. DOR for first line and second line is presented. Analysis performed by Kaplan Meier method.
From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause whichever occurred first (maximum up to 33.9 months)
SLI: PFS as Assessed by Investigator According to Line of Therapy - FAS
Time Frame: From date of randomization to earliest documentation of PD or death or censoring date, whichever occurred first (maximum up to 33.9 months)
PFS: time from date of randomization to earliest documented PD per RECIST version 1.1 or death due to any cause as assessed by response reported by investigator on eCRF. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Censoring details: no adequate baseline assessment, including no disease at baseline: participants were censored to randomization date; no PD, lost to follow-up, withdrawal of consent, PD or death >12 (or 16) weeks after the last adequate tumor assessment, and start of new anticancer treatment: participants were censored to last adequate tumor assessment documenting no PD prior to new anticancer therapy, or missed assessments. Participants with PFS for first line and second line were presented. Analysis performed using Kaplan Meier method.
From date of randomization to earliest documentation of PD or death or censoring date, whichever occurred first (maximum up to 33.9 months)
SLI: Time to Response (TTR) as Assessed by Investigator According to Line of Therapy - FAS
Time Frame: From date of first dose to first radiographic evidence of response (CR or PR) (maximum up to 33.9 months [147.3 weeks])
TTR was defined as the time from the date of first dose to first radiographic evidence of response (CR or PR) per RECIST v1.1 as assessed by response reported by investigator on eCRF. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. In this outcome measure, TTR for first line (no prior treatment) and second line (participant received a prior treatment defined as advanced/metastatic or locoregional disease or maintenance or if neoadjuvant/adjuvant with a disease recurrence occurred during or within 6 months of the last dose of therapy) were reported.
From date of first dose to first radiographic evidence of response (CR or PR) (maximum up to 33.9 months [147.3 weeks])
SLI: Overall Survival (OS) According to Line of Therapy - FAS
Time Frame: From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 33.9 months)
OS was defined as the time from the date of first dose to death due to any cause. If a participant was not known to have died at the time of the cutoff for analysis, then OS was censored at the date of last contact. In this outcome measure, OS for first line (no prior treatment) and second line (participant received a prior treatment defined as advanced/metastatic or locoregional disease or maintenance or if neoadjuvant/adjuvant with a disease recurrence occurred during or within 6 months of the last dose of therapy) was presented. Analysis was performed using Kaplan Meier method.
From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 33.9 months)
SLI: Maximum Plasma Concentration (Cmax) of Encorafenib and Its Metabolite LHY746
Time Frame: Cohort 1: Pre-dose (0 hour [hr]), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Cmax was observed directly from data. LHY746 is a metabolite of Encorafenib.
Cohort 1: Pre-dose (0 hour [hr]), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI: Area Under the Concentration Time Profile From Time Zero to 6 Hours (AUC6) for Encorafenib and Its Metabolite LHY746
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, and 6 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Predose (0 hr), 1, 2, 3, 4, and 6 hrs post-dose on Days 1 and 15 of Cycle 1
The AUC was estimated from time 0 to 6 hours post dose. AUC6 was computed using the Linear/Log trapezoidal method. LHY746 is a metabolite of Encorafenib.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, and 6 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Predose (0 hr), 1, 2, 3, 4, and 6 hrs post-dose on Days 1 and 15 of Cycle 1
SLI: Area Under the Concentration-time Profile From Time Zero to the Time Tau (AUCtau) of Encorafenib and Its Metabolite LHY746
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
AUCtau was area under the concentration-time profile from time zero to time tau, the dosing interval. tau = 24 hrs for QD dosing of encorafenib. LHY746 is a metabolite of encorafenib. AUCtau can be calculated directly from the data using 24 hrs (tau) sample or can be approximately calculated by kel, where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI: Time to Maximum Plasma Concentration (Tmax) of Encorafenib and Its Metabolite LHY746
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Tmax: time (hours) to Cmax. LHY746 is a metabolite of Encorafenib.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI: Apparent Total Clearance (CL/F) of Encorafenib
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as Dose/AUCinf where dose is the dose administered divided by area under the concentration curve from time 0 extrapolated to infinite time (AUCinf). AUCinf was calculated as AUClast + (Clast*/kel), where Clast is last plasma concentration from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Day 15 of Cycle 1; Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: Cmax of Irinotecan and Its Metabolite SN-38
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Cmax was observed directly from data. SN-38 is a metabolite of Irinotecan.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: AUClast of Irinotecan and Its Metabolite SN-38
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
AUClast was defined as area under the plasma concentration time curve from time zero to the last measurable concentration. AUClast was calculated using linear/log trapezoidal method. SN-38 is a metabolite of Irinotecan.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: Apparent Terminal Elimination Half-Life (t1/2) of Irinotecan and Its Metabolite SN-38
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
t1/2 was the time measured for the drug concentration to decrease by one half. t1/2 was determined by Loge (2)/kel, where kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve. SN-38 is a metabolite of Irinotecan.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: CL/F of Irinotecan
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as dose administered divided by area under the concentration curve from time 0 extrapolated to infinite time (AUCinf). AUCinf was calculated as AUClast + (Clast*/kel), where Clast is the predicted plasma concentration at the last quantifiable time point from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the loglinear concentration-time curve.
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 2: Cmax of Oxaliplatin
Time Frame: Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Cmax was observed directly from data. Oxaliplatin was evaluated as total platinum in plasma and platinum in plasma ultrafiltrate.
Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 2: AUClast of Oxaliplatin
Time Frame: Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
AUClast was defined as area under the plasma concentration time curve from time zero to the last measurable concentration. AUClast was calculated using linear/log trapezoidal method. Oxaliplatin was evaluated as total platinum in plasma and platinum in plasma ultrafiltrate.
Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 2: CL/F of Oxaliplatin
Time Frame: Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as dose administered divided by area under the concentration curve from time 0 extrapolated to infinite time (AUCinf). AUCinf was calculated as AUClast + (Clast*/kel), where Clast is the predicted plasma concentration at the last quantifiable time point from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the loglinear concentration-time curve. Oxaliplatin consisted of platinum of plasma and platinum in plasma-ultrafiltrate. The clearance of platinum-ultrafiltrate has been presented in this outcome measure.
Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: Ratio of AUCinf on Cycle 1 Day 15 as Compared to Cycle 1 Day 1 for Irinotecan and Its Metabolite SN-38
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
AUCinf was calculated as AUClast + (Clast*/kel), where Clast was the predicted plasma concentration at the last quantifiable time point from the log-linear regression analysis, and kel was the terminal phase rate constant calculated by a linear regression of the loglinear concentration-time curve. The ratio between geometric least square (LS) mean (within Cohort 1) for AUCinf on Cycle 1 Day 15 and geometric LS mean (within Cohort 1) for AUCinf on Cycle 1 Day 1 for irinotecan and its metabolite SN-38 has been presented in this outcome measure, which explains the data reported for this outcome measure using measure type as "Number".
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: Ratio of AUClast on Cycle 1 Day 15 as Compared to Cycle 1 Day 1 for Irinotecan and Its Metabolite SN-38
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
AUClast was defined as area under the plasma concentration time curve from time zero to the last measurable concentration. AUClast was calculated using linear/log trapezoidal method. The ratio between geometric LS mean (within Cohort 1) for AUClast on Cycle 1 Day 15 and geometric LS mean (within Cohort 1) for AUClast on Cycle 1 Day 1 for irinotecan and its metabolite SN-38 has been presented in this outcome measure, which explains the data reported for this outcome measure using measure type as "Number".
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 1: Ratio of Cmax on Cycle 1 Day 15 as Compared to Cycle 1 Day 1 for Irinotecan and Its Metabolite SN-38
Time Frame: Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Cmax was observed directly from data. The ratio between geometric LS mean (within Cohort 1) for Cmax on Cycle 1 Day 15 and geometric LS mean (within Cohort 1) for Cmax on Cycle 1 Day 1 for irinotecan and its metabolite SN-38 has been presented in this outcome measure, which explains the data reported for this outcome measure using measure type as "Number".
Cohort 1: Pre-dose (0 hr), 0.75, 1.5, 2.5, 3.5, 5.5, 7.5, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 2: Ratio of AUClast on Cycle 1 Day 15 as Compared to Cycle 1 Day 1 for Oxaliplatin
Time Frame: Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
AUClast was defined as area under the plasma concentration time curve from time zero to the last measurable concentration. AUClast was calculated using linear/log trapezoidal method. Oxaliplatin was evaluated as total platinum in plasma and platinum in plasma ultrafiltrate. The ratio between geometric LS mean (within Cohort 2) for AUClast on Cycle 1 Day 15 and geometric LS mean (within Cohort 2) for AUClast on Cycle 1 Day 1 for Oxaliplatin has been presented in this outcome measure, which explains the data reported for this outcome measure using measure type as "Number".
Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
SLI, Cohort 2: Ratio of Cmax on Cycle 1 Day 15 as Compared to Cycle 1 Day 1 for Oxaliplatin
Time Frame: Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Cmax was observed directly from data. Oxaliplatin was evaluated as total platinum in plasma and platinum in plasma ultrafiltrate. The ratio between geometric LS mean (within Cohort 2) for Cmax on Cycle 1 Day 15 and geometric LS mean (within Cohort 2) for Cmax on Cycle 1 Day 1 for Oxaliplatin has been presented in this outcome measure, which explains the data reported for this outcome measure using measure type as "Number".
Cohort 2: Pre-dose (0 hr), 1, 2, 3, 4, 6, 8, and 48 hrs post-dose on Days 1 and 15 of Cycle 1
Phase 3: OS for Arm B vs Arm C - FAS
Time Frame: From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 37.25 months)
OS was defined as the time from the date of first dose to death due to any cause. If a participant was not known to have died at the time of the cutoff for analysis, then OS was censored at the date of last contact. Analysis was performed using Kaplan Meier method.
From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: ORR by Derived Investigator Assessment for Arm B vs Arm C - FAS ORR Subset
Time Frame: From date of randomization until documented PD, or start of subsequent anticancer therapy, or death, whichever occurred first (maximum up to 24.71 months)
ORR was defined as the percentage of participants who achieved BOR of confirmed CR or PR according to RECIST v 1.1 by derived investigator assessment. CR: complete disappearance of all target lesions (with the exception of nodal disease) and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >=30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion.
From date of randomization until documented PD, or start of subsequent anticancer therapy, or death, whichever occurred first (maximum up to 24.71 months)
Phase 3: ORR as Assessed by BICR - FAS
Time Frame: From date of randomization until documented PD by BICR, or start of subsequent anticancer therapy, or death, whichever occurred first (maximum up to 37.25 months)
ORR was defined as the percentage of participants who achieved BOR of confirmed CR or PR according to RECIST v 1.1 as assessed by BICR. CR: complete disappearance of all target lesions (with the exception of nodal disease) and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >=30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion.
From date of randomization until documented PD by BICR, or start of subsequent anticancer therapy, or death, whichever occurred first (maximum up to 37.25 months)
Phase 3: DOR as Assessed by BICR for Arm B Versus Arm C - FAS ORR Subset
Time Frame: From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 24.71 months)
DOR was defined as the time from the date of first radiographic evidence of response (CR or PR) to the earliest documented PD per RECIST v1.1 as assessed by BICR, or death due to any cause. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Analysis was performed using Kaplan Meier method.
From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 24.71 months)
Phase 3: DOR by Derived Investigator Assessment for Arm B Versus Arm C - FAS ORR Subset
Time Frame: From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 24.71 months)
DOR was defined as the time from the date of first radiographic evidence of response (CR or PR) to the earliest documented PD per RECIST v1.1 by derived investigator assessment, or death due to any cause. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Analysis was performed using Kaplan Meier method.
From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 24.71 months)
Phase 3: PFS as Assessed by BICR - FAS
Time Frame: From date of randomization to earliest documentation of PD or death or censoring date, whichever occurred first (maximum up to 37.25 months)
PFS was defined as the time from date of randomization to earliest documented PD per RECIST version 1.1 or death due to any cause as assessed by BICR. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Censoring details: no adequate baseline assessment, including no disease at baseline: participants were censored to randomization date; no PD, lost to follow-up, withdrawal of consent, PD or death >12 (or 16) weeks after the last adequate tumor assessment, and start of new anticancer treatment: participants were censored to last adequate tumor assessment documenting no PD prior to new anticancer therapy, or missed assessments. Analysis was performed using Kaplan Meier method.
From date of randomization to earliest documentation of PD or death or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: OS - FAS
Time Frame: From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 37.25 months)
OS was defined as the time from the date of first dose to death due to any cause. If a participant was not known to have died at the time of the cutoff for analysis, then OS was censored at the date of last contact. Analysis was performed using Kaplan Meier method.
From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: PFS by Derived Investigator Assessment - FAS
Time Frame: From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 37.25 months)
PFS was defined as the time from date of randomization to earliest documented PD per RECIST version 1.1 or death due to any cause by derived investigator assessment. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Censoring details: no adequate baseline assessment, including no disease at baseline: participants were censored to randomization date; no PD, lost to follow-up, withdrawal of consent, PD or death >12 (or 16) weeks after the last adequate tumor assessment, and start of new anticancer treatment: participants were censored to last adequate tumor assessment documenting no PD prior to new anticancer therapy, or missed assessments. Analysis was performed using Kaplan Meier method.
From date of first dose to death due to any cause or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: TTR as Assessed by BICR for Arm B vs Arm C - FAS ORR Subset
Time Frame: From date of first dose to CR or PR (maximum up to 24.71 months [107.37 weeks])
TTR was defined as the time from the date of first dose to first radiographic evidence of response (CR or PR) per RECIST v1.1 as assessed by BICR. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions.
From date of first dose to CR or PR (maximum up to 24.71 months [107.37 weeks])
Phase 3: TTR by Derived Investigator Assessment for Arm B vs Arm C - FAS ORR Subset
Time Frame: From date of first dose to CR or PR (maximum up to 24.71 months [107.37 weeks])
TTR was defined as the time from the date of first dose to first radiographic evidence of response (CR or PR) per RECIST v1.1 by derived investigator assessment. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions.
From date of first dose to CR or PR (maximum up to 24.71 months [107.37 weeks])
Phase 3: Progression After Next Line of Treatment (PFS2) - FAS
Time Frame: From date of randomization to date of discontinuation of next-line treatment after PD or PD2 or death or censoring date, whichever occurred first (maximum up to 37.25 months)
PFS2 was defined as the time from the date of randomization to the date of discontinuation of next-line treatment after first objective PD by investigator assessment, to second objective disease progression (PD2), or death from any cause, whichever occurred first. PD2: was progressive disease after the start of subsequent anticancer therapy based on investigator assessment. PFS2 was censored at start date of next-line anticancer treatment (NTX) if PD date > NTX start date and there was no death, at last contact date if withdrawal of consent date >= date of randomization or end of study or if participant lost to follow-up or if no prior conditions are met or PD and no NTX and there was no death.
From date of randomization to date of discontinuation of next-line treatment after PD or PD2 or death or censoring date, whichever occurred first (maximum up to 37.25 months)
Phase 3: Number of Participants With AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether/ not considered related to study intervention. SAE was defined as any untoward medical occurrence that, at any dose, met one or more of the following criteria - resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, or other important medical event. AEs included both SAEs and all non-SAEs.
Through end of the study
Phase 3: Number of Participants With Grade 3 or 4 AEs and Grade 5 AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether/ not considered related to study intervention. AEs were graded according to NCI-CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening and grade 5= death related to AE. In this outcome measure, number of participants with grade 3 or 4 AEs and grade 5 AEs were reported.
Through end of the study
Phase 3: Number of Participants With Shift From Grade <=2 at Baseline to Grade >=3 Post-Baseline in Hematology and Coagulation Parameters
Time Frame: Through end of the study
The following hematology and coagulation parameters were assessed: activated partial thromboplastin time prolonged, anemia, hemoglobin increased, INR increased, leukocytosis, neutrophil count decreased, platelet count decreased, and white blood cell decreased. Laboratory abnormalities were graded according to NCI CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening event due to AE, and grade 5= death. Only those hematology and coagulation parameters in which at least 1 participant in any of the reporting arm had any shift from grade <=2 at baseline to grade >=3 post-baseline are reported in this outcome measure.
Through end of the study
Phase 3: Number of Participants With Shift From Grade <=2 at Baseline to Grade >=3 Post-Baseline in Chemistry Parameters
Time Frame: Through end of the study
The following chemistry parameters were assessed: alanine aminotransferase increased, alkaline phosphatase increased, aspartate aminotransferase increased, blood bilirubin increased, creatinine increased, hypercalcemia, hyperglycemia, hyperkalemia, hypermagnesemia, hypernatremia, hypoalbuminemia, hypocalcemia, hypoglycemia, hypokalemia, hypomagnesemia, hyponatremia, and lipase increased. Laboratory abnormalities were graded according to NCI CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening and grade 5= death related to AE. Only those chemistry parameters in which at least 1 participant in any of the reporting arm had any shift from grade <=2 at baseline to grade >=3 post-baseline are reported in this outcome measure.
Through end of the study
Phase 3: Number of Participants According to Categorization of Vital Signs Data
Time Frame: Through end of the study
The criteria for vital signs included: Systolic blood pressure (mmHg): value <= 90 mmHg and decrease from baseline >= 20 mmHg, and value >= 160 mmHg and increase from baseline >= 20 mmHg. Diastolic blood pressure (mmHg): value <= 50 mmHg and decrease from baseline >= 15 mmHg, and value >= 100 mmHg and increase from baseline >= 15 mmHg. Pulse rate (bpm): value <= 50 bpm and decrease from baseline >= 15 bpm, and value >= 120 bpm and increase from baseline >= 15 bpm. Weight (kg): change >= 20 % decrease from baseline, and change >=10% increase from baseline. Temperature (degree Celsius): value <=36 degree Celsius, and value >=37.5 degree Celsius. Only those criteria in which at least 1 participant in any of the reporting arm had any vital signs data are reported in this outcome measure.
Through end of the study
Phase 3: Number of Participants According to Categorization of ECGs Findings
Time Frame: Through end of the study
ECG criteria included: ECG mean heart rate (bpm): increase from baseline >25% and to a value >100 bpm; decrease from baseline >25% and to a value <50 bpm, PR interval not otherwise specified (msec): new >280 msec, QRS interval not otherwise specified (msec): new >120 msec, QTcF not otherwise specified: new >450 msec; new >480 msec; new >500 msec; increase from baseline >30 msec and increase from baseline >60 msec. Only those criteria in which at least 1 participant in any of the reporting arm had any ECG findings are reported in this outcome measure.
Through end of the study
Phase 3: European Organization for Research and Treatment of Cancer Quality of Life Questionnaire for Cancer Patients - 30 Item Core Questionnaire (EORTC QLQC30) Global Health Status/Quality of Life Scores (QoL) at Baseline and Week 72
Time Frame: Baseline and Week 72
EORTC QLQ-C30 contains 30 items and is composed of both multi-item scales and single-item measures. These included five functional scales (physical, role, emotional, cognitive and social functioning), three symptom scales (fatigue, nausea/vomiting, and pain), six single items (dyspnea, insomnia, appetite loss, constipation, diarrhea and financial impact) and a global health status/QoL scale. Global health status/QoL scale ranged from 0 to 100; the higher score represents better level of functioning. In this outcome measure, global health status/QoL scores are presented.
Baseline and Week 72
Phase 3: EuroQol Quality of Life 5-Dimension 5-Level Scale (EQ-5D-5L) Visual Analogue Score (VAS) at Baseline and Week 72
Time Frame: Baseline and Week 72
EQ-5D-5L is a standardized measure of health status. The EQ-5D-5L consisted of EQ-5D-5L descriptive system and the EQ VAS. For EQ VAS participant rated their overall health status from 0 (worst imaginable) to 100 (best imaginable), higher scores indicating a better health state.
Baseline and Week 72
Phase 3: Number of Participants According to Response to Patient Global Impression of Severity (PGIS) Assessment at Baseline and at Week 30
Time Frame: Baseline and Week 30
PGIS is a single-item scale where participants rated the severity of colorectal cancer as follows: none, mild, moderate, severe and very severe.
Baseline and Week 30
Phase 3: Number of Participants According to Response to Patient Global Impression of Change (PGIC) Assessment at Week 30
Time Frame: Week 30
The PGIC is a single-item scale where participants rated the overall change in colorectal cancer since participant started taking the study medication as follows: much better, a little better, no change, a little worse, and much worse.
Week 30
Phase 3: Trough Plasma Concentration of Encorafenib and Its Metabolite LHY746
Time Frame: Predose on Cycle 1 Day 1, Cycle 2 Day 1, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1 and Cycle 6 Day 1
Trough plasma concentration of encorafenib and its metabolite LHY746 was measured in this outcome measure.
Predose on Cycle 1 Day 1, Cycle 2 Day 1, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1 and Cycle 6 Day 1
Phase 3: Cmax of Encorafenib and Its Metabolite LHY746 in Mainland China Participants
Time Frame: Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Cmax was observed directly from data. LHY746 is a metabolite of Encorafenib.
Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Phase 3: AUC6 of Encorafenib and Its Metabolite LHY746 in Mainland China Participants
Time Frame: Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5 and 6 hrs post-dose on Days 1 and 15 of Cycle 1
The AUC was estimated from time 0 to 6 hours post dose. AUC6 was computed using the Linear/Log trapezoidal method. LHY746 is a metabolite of Encorafenib.
Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5 and 6 hrs post-dose on Days 1 and 15 of Cycle 1
Phase 3: AUCtau of Encorafenib and Its Metabolite LHY746 in Mainland China Participants
Time Frame: Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
AUCtau was area under the concentration-time profile from time zero to time tau, the dosing interval. tau = 24 hrs for QD dosing of encorafenib. LHY746 is a metabolite of encorafenib.
Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Phase 3: Tmax of Encorafenib and Its Metabolite LHY746 in Mainland China Participants
Time Frame: Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Tmax: time (hours) to Cmax. LHY746 is a metabolite of Encorafenib.
Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Phase 3: CL/F of Encorafenib in Mainland China Participants
Time Frame: Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. CL/F was calculated as dose administered divided by area under the concentration curve from time 0 extrapolated to infinite time (AUCinf). AUCinf was calculated as AUClast + (Clast*/kel), where Clast is the predicted plasma concentration at the last quantifiable time point from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the loglinear concentration-time curve.
Pre-dose (0 hr), 0.5, 1, 2, 3, 4, 5, 6, 8 and 24 hrs post-dose on Days 1 and 15 of Cycle 1
Phase 3: Number of Participants Classified According to Microsatellite Instability (MSI) Status as Determined by Retrospective Central Testing of Baseline Tumor Tissue
Time Frame: Baseline
MSI status was classified as follows; microsatellite instability-high (MSI-H): included participants with no negative test results and at least one positive test result, microsatellite stable (MSS): included participants with at least one negative test result and MSI-unknown: included participants with intermediate test results or not analyzed for MSI. The number of participants as per their MSI status (MSI-H, MSS, and MSI-unknown) have been reported in this outcome measure.
Baseline
Phase 3: Number of Participants According to Circulating Tumor Deoxyribonucleic Acid (ctDNA) Status
Time Frame: Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 15, Cycle 7 Day 1 and End of Treatment (anytime till maximum of 37.25 months)
ctDNA status was classified as follows; detected: overall variant allele frequency (VAF) was greater than zero, not detected: overall VAF equalled zero, and not evaluable: overall VAF could not be calculated. The VAF was defined as percentage of deoxyribonucleic acid (DNA) reads at a specific position that show a genetic variant instead of the normal (reference) sequence. The number of participants as per their ctDNA status (detected, not detected and not evaluable) have been reported in this outcome measure.
Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 15, Cycle 7 Day 1 and End of Treatment (anytime till maximum of 37.25 months)
Phase 3: Number of Participants According to B-Raf Serine/Threonine-Protein Kinase (BRAF) Valine 600 (V600) Status From ctDNA
Time Frame: Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 15, Cycle 7 Day 1 and End of Treatment (anytime till maximum of 37.25 months)
BRAF V600 status from ctDNA was classified as follows; measurable: participants with detectable ctDNA had measurable BRAF V600 tumor biomarker alterations and not measurable: participants with detectable ctDNA did not have measurable BRAF V600 biomarker alterations or overall ctDNA was not detectable. The number of participants as per their BRAF V600 status from ctDNA (measurable and not measurable) have been reported in this outcome measure. In this outcome measure, data is presented for participants outside China and Mainland China participants.
Cycle 1 Day 1, Cycle 1 Day 15, Cycle 2 Day 15, Cycle 7 Day 1 and End of Treatment (anytime till maximum of 37.25 months)
Cohort 3: PFS as Assessed by BICR - FAS
Time Frame: From date of randomization to earliest documentation of PD by BICR or death or censoring date, whichever occurred first
PFS was defined as the time from date of randomization to earliest documented PD per RECIST version 1.1 or death due to any cause as assessed by BICR. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Censoring details: no adequate baseline assessment, including no disease at baseline: participants were censored to randomization date; no PD, lost to follow-up, withdrawal of consent, PD or death >12 (or 16) weeks after the last adequate tumor assessment, and start of new anticancer treatment: participants were censored to last adequate tumor assessment documenting no PD prior to new anticancer therapy, or missed assessments. Analysis was performed using Kaplan Meier method.
From date of randomization to earliest documentation of PD by BICR or death or censoring date, whichever occurred first
Cohort 3: ORR by Derived Investigator Assessment - FAS
Time Frame: From date of randomization until documented PD, or start of subsequent anticancer therapy, or death, whichever occurred first (maximum up to 14.1 months)
ORR was defined as the percentage of participants who achieved BOR of confirmed CR or PR according to RECIST v 1.1 by derived investigator assessment. CR: complete disappearance of all target lesions (with the exception of nodal disease) and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >=30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion.
From date of randomization until documented PD, or start of subsequent anticancer therapy, or death, whichever occurred first (maximum up to 14.1 months)
Cohort 3: DOR as Assessed by BICR - FAS
Time Frame: From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 14.1 months)
DOR was defined as the time from the date of first radiographic evidence of response (CR or PR) to the earliest documented PD per RECIST v1.1 as assessed by BICR, or death due to any cause. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Analysis was performed using Kaplan Meier method.
From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 14.1 months)
Cohort 3: DOR by Derived Investigator Assessment - FAS
Time Frame: From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 14.1 months)
DOR was defined as the time from the date of first radiographic evidence of response (CR or PR) to the earliest documented PD per RECIST v1.1 by derived investigator assessment, or death due to any cause. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Analysis was performed using Kaplan Meier method.
From date of first radiographic evidence of response (CR or PR) to earliest documented PD or death due to any cause, whichever occurred first (maximum up to 14.1 months)
Cohort 3: PFS by Derived Investigator Assessment - FAS
Time Frame: From date of randomization to earliest documentation of PD or death or censoring date, whichever occurred first
PFS was defined as the time from date of randomization to earliest documented PD per RECIST version 1.1 or death due to any cause by derived investigator assessment. PD: 20% increase in sum of diameters of target measurable lesions above smallest sum observed, with minimum absolute increase of 5 mm for target disease or unequivocal progression of pre-existing lesions for non-target disease or any new lesion. Censoring details: no adequate baseline assessment, including no disease at baseline: participants were censored to randomization date; no PD, lost to follow-up, withdrawal of consent, PD or death >12 (or 16) weeks after the last adequate tumor assessment, and start of new anticancer treatment: participants were censored to last adequate tumor assessment documenting no PD prior to new anticancer therapy, or missed assessments. Analysis was performed using Kaplan Meier method.
From date of randomization to earliest documentation of PD or death or censoring date, whichever occurred first
Cohort 3: OS - FAS
Time Frame: From date of first dose to death due to any cause or censoring date, whichever occurred first
OS was defined as the time from the date of first dose to death due to any cause. If a participant was not known to have died at the time of the cutoff for analysis, then OS was censored at the date of last contact. Analysis was performed using Kaplan Meier method.
From date of first dose to death due to any cause or censoring date, whichever occurred first
Cohort 3: TTR as Assessed by BICR - FAS
Time Frame: From date of first dose to CR or PR (maximum up to 14.1 months [61.29 weeks])
TTR was defined as the time from the date of first dose to first radiographic evidence of response (CR or PR) per RECIST v1.1 as assessed by BICR. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions.
From date of first dose to CR or PR (maximum up to 14.1 months [61.29 weeks])
Cohort 3: TTR by Derived Investigator Assessment - FAS
Time Frame: From date of first dose to CR or PR (maximum up to 14.1 months [61.29 weeks])
TTR was defined as the time from the date of first dose to first radiographic evidence of response (CR or PR) per RECIST v1.1 by derived investigator assessment. CR: disappearance of all target lesions and non-target lesions. Any pathological lymph nodes (whether target or non-target) must have reduction in short axis to <10 mm. PR: >= 30% decrease under baseline of the sum of diameters of all target measurable lesions.
From date of first dose to CR or PR (maximum up to 14.1 months [61.29 weeks])
Cohort 3: Number of Participants With AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether/ not considered related to study intervention. SAE was defined as any untoward medical occurrence that, at any dose, met one or more of the following criteria - resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect, or other important medical event. AEs included both SAEs and all non-SAEs.
Through end of the study
Cohort 3: Number of Participants With Grade 3 or 4 AEs and Grade 5 AEs
Time Frame: Through end of the study
An AE was any untoward medical occurrence in clinical study participant temporally associated with use of study intervention, whether/ not considered related to study intervention. AEs were graded according to NCI-CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening and grade 5= death related to AE. In this outcome measure, number of participants with grade 3 or 4 AEs and grade 5 AEs were reported.
Through end of the study
Cohort 3: Number of Participants With Shift From Grade <=2 at Baseline to Grade >=3 Post-Baseline in Hematology and Coagulation Parameters
Time Frame: Through end of the study
The following hematology and coagulation parameters were assessed: activated partial thromboplastin time prolonged, anemia, hemoglobin increased, INR increased, leukocytosis, neutrophil count decreased, platelet count decreased, and white blood cell decreased. Laboratory abnormalities were graded according to NCI CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening event due to AE, and grade 5= death. Only those hematology and coagulation parameters in which at least 1 participant in any of the reporting arm had any shift from grade <=2 at baseline to grade >=3 post-baseline are reported in this outcome measure.
Through end of the study
Cohort 3: Number of Participants With Shift From Grade <=2 at Baseline to Grade >=3 Post-Baseline in Chemistry Parameters
Time Frame: Through end of the study
The following chemistry parameters were assessed: alanine aminotransferase increased, alkaline phosphatase increased, aspartate aminotransferase increased, blood bilirubin increased, creatinine increased, hypercalcemia, hyperglycemia, hyperkalemia, hypermagnesemia, hypernatremia, hypoalbuminemia, hypocalcemia, hypoglycemia, hypokalemia, hypomagnesemia, hyponatremia, and lipase increased. Laboratory abnormalities were graded according to NCI CTCAE v4.03 where grade 1= mild, grade 2= moderate, grade 3= severe, grade 4= life-threatening and grade 5= death related to AE. Only those chemistry parameters in which at least 1 participant in any of the reporting arm had any shift from grade <=2 at baseline to grade >=3 post-baseline are reported in this outcome measure.
Through end of the study
Cohort 3: Number of Participants According to Categorization of Vital Signs Data
Time Frame: Through end of the study
The criteria for vital signs included: Systolic blood pressure (mmHg): value <= 90 mmHg and decrease from baseline >= 20 mmHg, and value >= 160 mmHg and increase from baseline >= 20 mmHg. Diastolic blood pressure (mmHg): value <= 50 mmHg and decrease from baseline >= 15 mmHg, and value >= 100 mmHg and increase from baseline >= 15 mmHg. Pulse rate (bpm): value <= 50 bpm and decrease from baseline >= 15 bpm, and value >= 120 bpm and increase from baseline >= 15 bpm. Weight (kg): change >= 20 % decrease from baseline, and change >=10% increase from baseline. Temperature (degree Celsius): value <=36 degree Celsius, and value >=37.5 degree Celsius. Only those criteria in which at least 1 participant in any of the reporting arm had any vital signs data are reported in this outcome measure.
Through end of the study
Cohort 3: Number of Participants According to Categorization of ECGs Findings
Time Frame: Through end of the study
ECG criteria included: ECG mean heart rate (bpm): increase from baseline >25% and to a value >100 bpm; decrease from baseline >25% and to a value <50 bpm, PR interval not otherwise specified (msec): new >280 msec, QRS interval not otherwise specified (msec): new >120 msec, QTcF not otherwise specified: new >450 msec; new >480 msec; new >500 msec; increase from baseline >30 msec and increase from baseline >60 msec. Only those criteria in which at least 1 participant in any of the reporting arm had any ECG findings are reported in this outcome measure.
Through end of the study
Cohort 3: EORTC QLQC30 Global Health Status/QoL
Time Frame: Through end of the study
EORTC QLQ-C30 contains 30 items and is composed of both multi-item scales and single-item measures. These included five functional scales (physical, role, emotional, cognitive and social functioning), three symptom scales (fatigue, nausea/vomiting, and pain), six single items (dyspnea, insomnia, appetite loss, constipation, diarrhea and financial impact) and a global health status/QoL scale. Global health status/QoL scale ranged from 0 to 100; the higher score represents better level of functioning.
Through end of the study
Cohort 3: EQ-5D-5L VAS
Time Frame: Through end of the study
EQ-5D-5L is a standardized measure of health status. The EQ-5D-5L consisted of EQ-5D-5L descriptive system and the EQ VAS. For EQ VAS participant rated their overall health status from 0 (worst imaginable) to 100 (best imaginable), higher scores indicating a better health state.
Through end of the study
Cohort 3: Number of Participants According to Response to PGIS Assessment
Time Frame: Through end of the study
PGIS is a single-item scale where participants rated the severity of colorectal cancer as follows: none, mild, moderate, severe and very severe.
Through end of the study
Cohort 3: Number of Participants According to Response to PGIC Assessment
Time Frame: Through end of the study
The PGIC is a single-item scale where participants rated the overall change in colorectal cancer since participant started taking the study medication as follows: much better, a little better, no change, a little worse, and much worse.
Through end of the study
Cohort 3: Trough Plasma Concentration of Encorafenib and Its Metabolite LHY746
Time Frame: Predose on Cycle 1 Day 1, Cycle 2 Day 1, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1 and Cycle 6 Day 1
Trough plasma concentration of encorafenib and its metabolite LHY746 was measured in this outcome measure.
Predose on Cycle 1 Day 1, Cycle 2 Day 1, Cycle 3 Day 1, Cycle 4 Day 1, Cycle 5 Day 1 and Cycle 6 Day 1
Cohort 3: Number of Participants Classified According to MSI Status as Determined by Retrospective Central Testing
Time Frame: Through end of the study
MSI status was classified as follows; MSI-H: included participants with no negative test results and at least one positive test result, MSS: included participants with at least one negative test result and MSI-unknown: included participants with intermediate test results or not analyzed for MSI. The number of participants as per their MSI status (MSI-H, MSS, and MSI-unknown) have been reported in this outcome measure.
Through end of the study
Cohort 3: Number of Participants According to ctDNA Status
Time Frame: Through end of the study
ctDNA status was classified as follows; detected: overall variant allele frequency (VAF) was greater than zero, not detected: overall VAF equalled zero, and not evaluable: overall VAF could not be calculated. The VAF was defined as percentage of deoxyribonucleic acid (DNA) reads at a specific position that show a genetic variant instead of the normal (reference) sequence. The number of participants as per their ctDNA status (detected, not detected and not evaluable) have been reported in this outcome measure.
Through end of the study
Cohort 3: Number of Participants According to BRAF V600 Status From ctDNA
Time Frame: Through end of the study
BRAF V600 status from ctDNA was classified as follows; measurable: participants with detectable ctDNA had measurable BRAF V600 tumor biomarker alterations and not measurable: participants with detectable ctDNA did not have measurable BRAF V600 biomarker alterations or overall ctDNA was not detectable. The number of participants as per their BRAF V600 status from ctDNA (measurable and not measurable) have been reported in this outcome measure.
Through end of the study

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Study Director: Pfizer CT.gov Call Center, Pfizer

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 21, 2020

Primary Completion (Actual)

March 1, 2025

Study Completion (Estimated)

December 28, 2027

Study Registration Dates

First Submitted

October 5, 2020

First Submitted That Met QC Criteria

October 22, 2020

First Posted (Actual)

October 29, 2020

Study Record Updates

Last Update Posted (Actual)

June 11, 2026

Last Update Submitted That Met QC Criteria

May 15, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Neoplasms

Clinical Trials on Encorafenib

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