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Subestudio 06C: Un estudio de sacituzumab tirumotecán (MK-2870) con pembrolizumab (MK-3475) y quimioterapia en participantes con adenocarcinoma gastroesofágico metastásico/irresecable localmente avanzado de primera línea (MK-3475-06C/KEYMAKER-U06)

12 de noviembre de 2026 actualizado por: Merck Sharp & Dohme LLC

Un estudio de diseño de plataforma general, de etiqueta abierta de fase 1/2 de MK-2870 con pembrolizumab (MK-3475) y quimioterapia en participantes con adenocarcinoma gastroesofágico metastásico/irresecable localmente avanzado de 1 litro (adenocarcinoma gástrico, adenocarcinoma de la unión gastroesofágica y adenocarcinoma de esófago): Subestudio 06C

This is a phase 1/2, multicenter, open-label umbrella platform study that will evaluate the safety and tolerability of investigational agents with pembrolizumab and fluoropyrimidine chemotherapy for the first-line (1L) treatment of participants with locally advanced unresectable or metastatic human epidermal growth factor receptor 2 (HER2)-negative gastric, gastroesophageal junction, or esophageal adenocarcinoma.

This substudy will have two phases: a safety lead-in phase and an efficacy phase. The safety lead-in phase will be used to evaluate the safety and tolerability, and to establish a recommended Phase 2 dose (RP2D) for investigational agents in combination with chemotherapy and immunotherapy. There is no formal hypothesis in this study.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Intervención / Tratamiento

Descripción detallada

The master protocol is MK-3475-U06.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

160

Fase

  • Fase 2
  • Fase 1

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Toll Free Number
  • Número de teléfono: 1-888-577-8839
  • Correo electrónico: Trialsites@msd.com

Ubicaciones de estudio

    • Baden-Wurttemberg
      • Heidelberg, Baden-Wurttemberg, Alemania, 69120
        • Reclutamiento
        • NCT-Department of Medical Oncology ( Site 6809)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +49 62215637784
    • Free and Hanseatic City of Hamburg
      • Erdgeschoss, Free and Hanseatic City of Hamburg, Alemania, 22297
        • Reclutamiento
        • HOPE Hamburg/Norddeutsches Studienzentrum fuer Innovative Onkologie ( Site 6807)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: + 4940360352246
    • North Rhine-Westphalia
      • Düsseldorf, North Rhine-Westphalia, Alemania, 40225
        • Terminado
        • Universitaetsklinikum Duesseldorf-Gastroenterology, Hepatology and Infectiology ( Site 6802)
      • São Paulo, Brasil, 03102-006
        • Reclutamiento
        • IBCC - Instituto Brasileiro de Controle do Câncer ( Site 6304)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 551144500300
      • São Paulo, Brasil, 01246-000
        • Reclutamiento
        • ICESP - INSTITUTO DO CÂNCER DO ESTADO DE SÃO PAULO ( Site 6300)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 551138932000
    • Rio Grande do Norte
      • Natal, Rio Grande do Norte, Brasil, 59062-000
        • Reclutamiento
        • Liga Norte Riograndense Contra o Câncer ( Site 6303)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +558440095595
    • Rio Grande do Sul
      • Porto Alegre, Rio Grande do Sul, Brasil, 91350-200
        • Reclutamiento
        • Hospital Nossa Senhora da Conceição ( Site 6301)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +5551993590437
      • Antofagasta, Chile, 1263521
        • Reclutamiento
        • Bradford Hill Norte ( Site 6407)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 56442023631
    • Los Lagos Region
      • Port Montt, Los Lagos Region, Chile, 5500243
        • Reclutamiento
        • Clínica Puerto Montt ( Site 6409)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 56961687093
    • Maule Region
      • Talca, Maule Region, Chile, 3481349
        • Terminado
        • Centro de Investigación del Maule ( Site 6408)
    • Region M. de Santiago
      • Santiago, Region M. de Santiago, Chile, 7500921
        • Reclutamiento
        • FALP-UIDO ( Site 6400)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 56224205098
      • Santiago, Region M. de Santiago, Chile, 7560908
        • Reclutamiento
        • Centro de Oncología de Precisión-Oncology ( Site 6404)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 56225189885
      • Santiago, Region M. de Santiago, Chile, 7620002
        • Reclutamiento
        • Clínica UC San Carlos de Apoquindo ( Site 6405)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 56934271024
      • Santiago, Region M. de Santiago, Chile, 8420383
        • Reclutamiento
        • Bradfordhill-Clinical Area ( Site 6401)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 56229490970
      • Seoul, Corea del Sur, 05505
        • Reclutamiento
        • Asan Medical Center-Department of Oncology ( Site 5901)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +82230103217
      • Seoul, Corea del Sur, 06351
        • Reclutamiento
        • Samsung Medical Center-Division of Hematology/Oncology ( Site 5900)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 82234101795
    • Arizona
      • Tucson, Arizona, Estados Unidos, 85719
        • Reclutamiento
        • University of Arizona Cancer Center-University of Arizona Cancer Center ( Site 6927)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 520-621-2449
    • California
      • Los Angeles, California, Estados Unidos, 90404
        • Reclutamiento
        • UCLA Hematology/Oncology - Santa Monica ( Site 6905)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 310-570-1453
    • Kentucky
      • Louisville, Kentucky, Estados Unidos, 40202
        • Terminado
        • Norton Hospital-Norton Cancer Institute - Downtown ( Site 6900)
    • Michigan
      • Grand Rapids, Michigan, Estados Unidos, 49503
        • Reclutamiento
        • The Cancer and Hematology Centers ( Site 6912)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 616-975-3065
    • New York
      • East Syracuse, New York, Estados Unidos, 13057
        • Reclutamiento
        • Hematology-Oncology Associates of Central NY, P.C. ( Site 6925)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 315-472-7504
      • New York, New York, Estados Unidos, 10032
        • Terminado
        • Columbia University Irving Medical Center-CUIMC Herbert Irving Comprehensive Cancer Center Clinical ( Site 6907)
    • Pennsylvania
      • Pittsburgh, Pennsylvania, Estados Unidos, 15232
        • Reclutamiento
        • UPMC Hillman Cancer Center-UPMC ( Site 6904)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 816-898-9413
    • Texas
      • Houston, Texas, Estados Unidos, 77030
        • Reclutamiento
        • University of Texas MD Anderson Cancer Center ( Site 6920)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 833-589-0868
    • Finistere
      • Brest, Finistere, Francia, 29200
        • Reclutamiento
        • CHU-BREST Cavale Blanche ( Site 5104)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 33298223428
    • Nord
      • Lille, Nord, Francia, 59037
        • Reclutamiento
        • CIC. ( Site 5100)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +33320445461
    • Île-de-France Region
      • Paris, Île-de-France Region, Francia, 75013
        • Reclutamiento
        • Pitie Salpetriere University Hospital-Hepato-Gastro-Enterology ( Site 5102)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +331 42 16 10 41
      • Milan, Italia, 20132
        • Reclutamiento
        • Ospedale San Raffaele-Oncologia Medica ( Site 5202)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +390226437615
    • Emilia-Romagna
      • Meldola, Emilia-Romagna, Italia, 47014
        • Reclutamiento
        • IRCCS - Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori"-Oncologia Medica ( Site 5207)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 0543739100
    • Lombardy
      • Milan, Lombardy, Italia, 20133
        • Reclutamiento
        • Fondazione IRCCS Istituto Nazionale dei Tumori-Struttura Complessa Oncologia Medica 1 ( Site 5200)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 0223903807
    • Tuscany
      • Pisa, Tuscany, Italia, 56126
        • Reclutamiento
        • Azienda Ospedaliero Universitaria Pisana ( Site 5206)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 050992454
      • Oslo, Noruega, 0379
        • Reclutamiento
        • Oslo universitetssykehus, Radiumhospitalet ( Site 6501)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 4723026600
    • Beijing Municipality
      • Beijing, Beijing Municipality, Porcelana, 100142
        • Reclutamiento
        • Beijing Cancer hospital-Digestive Oncology ( Site 5500)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: (010)88196317
    • Fujian
      • Fuzhou, Fujian, Porcelana, 350025
        • Reclutamiento
        • The 900th Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army ( Site 5501)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 0591-22859606
      • Xiamen, Fujian, Porcelana, 361003
        • Reclutamiento
        • The First Affiliated hospital of Xiamen University ( Site 5503)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 0592-2139767
    • Henan
      • Zhengzhou, Henan, Porcelana, 450008
        • Reclutamiento
        • Henan Cancer Hospital ( Site 5504)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 400-0371-818
    • Jiangxi
      • Nanchang, Jiangxi, Porcelana, 330000
        • Reclutamiento
        • The First Affiliated Hospital of Nanchang University ( Site 5514)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 0791-86427234
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Porcelana, 200032
        • Activo, no reclutando
        • Fudan University Shanghai Cancer Center ( Site 5513)
    • Xinjiang
      • Ürümqi, Xinjiang, Porcelana, 841100
        • Activo, no reclutando
        • Xinjiang Medical University Cancer Hospital - Urumqi ( Site 5506)
    • Zhejiang
      • Hangzhou, Zhejiang, Porcelana, 310016
        • Reclutamiento
        • Sir Run Run Shaw Hospital of Zhejiang University School of Medicine ( Site 5510)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 0571 8609 0073
    • Canton of Geneva
      • Geneva, Canton of Geneva, Suiza, 1211
        • Reclutamiento
        • Hôpitaux Universitaires de Genève (HUG) ( Site 6701)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +41 22 372 29 01
    • Kanton Graubünden
      • Chur, Kanton Graubünden, Suiza, 7000
        • Reclutamiento
        • Kantonsspital Graubünden-Medizin ( Site 6700)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +41 81 256 61 11
    • Bangkok
      • Bangkoknoi, Bangkok, Tailandia, 10700
        • Reclutamiento
        • Faculty of Medicine Siriraj Hospital ( Site 6102)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +6624194489
      • Pathumwan, Bangkok, Tailandia, 10330
        • Reclutamiento
        • Chulalongkorn Hospital ( Site 6104)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 022564533
      • Ratchathewi, Bangkok, Tailandia, 10400
        • Reclutamiento
        • Ramathibodi Hospital ( Site 6103)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 022011671
    • Changwat Songkhla
      • Hat Yai, Changwat Songkhla, Tailandia, 90110
        • Reclutamiento
        • Songklanagarind hospital ( Site 6101)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +6674451469
      • Taichung, Taiwán, 404
        • Reclutamiento
        • China Medical University Hospital ( Site 6007)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: 886422052121x15057
      • Tainan, Taiwán, 704
        • Reclutamiento
        • National Cheng Kung University Hospital ( Site 6001)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +88662353535x4559
      • Taipei, Taiwán, 10048
        • Reclutamiento
        • National Taiwan University Hospital-Oncology ( Site 6000)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +88623123456x267852
      • Taipei, Taiwán, 112
        • Reclutamiento
        • Taipei Veterans General Hospital ( Site 6005)
        • Contacto:
          • Study Coordinator
          • Número de teléfono: +88628717270x131

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

The main inclusion criteria include but are not limited to the following:

  • Has histologically and/or cytologically confirmed diagnosis of previously untreated locally advanced unresectable or metastatic first-line (1L) gastroesophageal adenocarcinoma
  • Is not expected to require tumor resection during the treatment course
  • Tumor tissue must be confirmed as negative for human epidermal growth factor receptor 2 (HER2) expression as classified by American Society of Clinical Oncology/College of American Pathologists (ASCO-CAP) guidelines
  • Core/excisional biopsy of a tumor lesion not previously irradiated has been provided
  • Participants who have adverse events (AEs) due to previous anticancer therapies must have recovered to ≤Grade 1 or baseline
  • Participants with endocrine-related AEs who are adequately treated with hormone replacement therapy are eligible
  • Has adequate organ function
  • Has measurable disease per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as determined by the local site investigator/radiology assessment and verified by blinded independent central review (BICR)
  • Has Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within 3 days prior to the first dose of study intervention
  • Has a life expectancy of at least 6 months
  • Participants who are hepatitis B surface antigen (HBsAg) positive are eligible if they have received Hepatitis B Virus (HBV) antiviral therapy for at least 4 weeks, and have undetectable HBV viral load prior to allocation/randomization
  • Participants with history of Hepatitis C Virus (HCV) infection are eligible if HCV viral load is undetectable at screening
  • Human Immunodeficiency Virus (HIV)-infected participants must have well controlled HIV on antiretroviral therapy

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

  • Has squamous cell or undifferentiated gastroesophageal cancer.
  • Has had previous therapy for locally advanced unresectable or metastatic gastric/gastroesophageal junction (GEJ)/esophageal adenocarcinoma
  • Has experienced weight loss >20% over 3 months before the first dose of study intervention
  • Has a history of documented severe dry eye syndrome, severe Meibomian gland disease and/or blepharitis, or severe corneal disease that prevents/delays corneal healing
  • Has Grade ≥2 peripheral neuropathy
  • Has active inflammatory bowel disease requiring immunosuppressive medication or previous history of inflammatory bowel disease
  • Has uncontrolled, significant cardiovascular disease or cerebrovascular disease within 6 months preceding study intervention
  • Has accumulation of pleural, ascitic, or pericardial fluid requiring drainage or diuretic drugs within 2 weeks prior to enrollment
  • Has history of human immunodeficiency virus (HIV) infection with Kaposi's sarcoma and/or Multicentric Castleman's Disease
  • Has received prior treatment with a trophoblast antigen 2 (TROP2)-targeted or anti-human epidermal growth factor receptor 3 (HER3) targeted agents
  • Has received prior treatment with a topoisomerase I inhibitor-based antibody-drug conjugate (ADC) and/or a topoisomerase I inhibitor-based chemotherapy
  • Has received prior systemic anticancer therapy within 4 weeks before the first dose of study intervention
  • Has received prior therapy with an anti-Programmed Cell Death Protein 1 (PD-1), anti-Programmed Cell Death-Ligand 1 (PD-L1), anti-Programmed Cell Death-Ligand 2 (PD-L2) agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (TCR)
  • Has received prior radiotherapy within 2 weeks of start of study intervention, or has radiation related toxicities, requiring corticosteroids
  • Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention
  • Has received a strong inducer/inhibitor of CYP3A4 that cannot be discontinued
  • Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration
  • Has diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of study intervention
  • Has known additional malignancy that is progressing or has required active treatment within the past 3 years
  • Has known active central nervous system (CNS) metastases and/or carcinomatous meningitis
  • Has Severe hypersensitivity (≥Grade 3) to pembrolizumab, sacituzumab tirumotecan, patritumab deruxtecan, or other biologic therapy, chemotherapy (ie, oxaliplatin, fluorouracil, capecitabine), leucovorin, levoleucovorin, or any of their excipients
  • Has active autoimmune disease that has required systemic treatment in the past 2 years
  • Has history of interstitial lung disease (ILD)/pneumonitis irrespective of steroid use, or current ILD, or suspected ILD, or ILD that cannot be ruled out by imaging at Screening
  • Has an active infection requiring systemic therapy
  • Has concurrent active hepatitis B (defined as Hepatitis B surface antigen [HBsAg] positive and/or detectable HBV DNA) and hepatitis C virus (defined as anti-hepatitis C virus [HCV] Ab positive and detectable HCV ribonucleic acid [RNA] infection or a known history of hepatitis B and/or C infection
  • Has history or current evidence of any condition, therapy, laboratory abnormality, or other circumstance that might confound the results of the study or interfere with the participant's ability to cooperate with the requirements of the study
  • Has gastrointestinal (GI) obstruction, poor oral intake, or difficulty in taking oral medication
  • Has poorly controlled diarrhea
  • Has had a major surgery or significant traumatic injury within 4 weeks before the first dose of study intervention
  • Has history of allogeneic tissue/solid organ transplant
  • Has not adequately recovered from major surgery or has ongoing surgical complications

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Pembrolizumab plus Chemotherapy

Participants will receive pembrolizumab 400 mg via intravenous (IV) injection on day 1 of every 6 week cycle (Q6W) for up to 18 cycles (up to ~2 years) AND investigator's choice of CAPOX chemotherapy (capecitabine 1000 mg/m^2 orally twice daily for 14 days every 3 weeks (Q3W) and oxaliplatin 130 mg/m^2 via IV infusion Q3W) OR mFOLFOX6 chemotherapy (oxaliplatin 85 mg/m^2 via IV infusion Q3W; 5-Fluorouracil (5-FU) 400 mg/^2 via bolus IV plus 2400 mg/m^2 continuous IV once every 2 weeks (Q2W); and leucovorin 400 mg/m^2 via IV infusion Q2W OR levoleucovorin 200 mg/m^2 Q2W).

Administered via intravenous (IV) infusion.

Otros nombres:
  • MK-3475
  • Keytruda®

Administered via oral tablet.

Otros nombres:
  • XELODA

Administered via IV infusion.

Otros nombres:
  • ácido folínico
  • WELLCOVORIN®
  • folinato de calcio

Administered via IV infusion.

Otros nombres:
  • FUSILEV®
  • levofolinato de calcio
  • ácido levofolínico

Administered via IV infusion

Otros nombres:
  • ADRUCIL®

Administered via IV infusion

Experimental: Pembrolizumab plus Sacituzumab Tirumotecan plus Chemotherapy

Participants will receive sacituzumab tirumotecan via IV infusion on Days 1, 15, and 29 Q6W until discontinuation, pembrolizumab 400 mg via IV injection on day 1 Q6W for up to 18 cycles (up to ~2 years) AND investigator's choice of capecitabine 1000 mg/m^2 orally twice daily for 14 days Q3W OR 5-FU 2400 mg/m^2 IV once Q2W AND leucovorin 400 mg/m^2 via IV infusion Q2W OR levoleucovorin 200 mg/m^2 Q2W.

Administered via intravenous (IV) infusion.

Otros nombres:
  • MK-3475
  • Keytruda®

Administered via oral tablet.

Otros nombres:
  • XELODA

Administered via IV infusion.

Otros nombres:
  • ácido folínico
  • WELLCOVORIN®
  • folinato de calcio

Administered via IV infusion.

Otros nombres:
  • FUSILEV®
  • levofolinato de calcio
  • ácido levofolínico

Administered via IV infusion

Otros nombres:
  • ADRUCIL®

Administered via IV infusion.

Otros nombres:
  • SKB264
  • MK-2870
Experimental: Pembrolizumab plus Patritumab Deruxtecan plus Chemotherapy

Participants will receive patritumab deruxtecan via IV infusion on Days 1 and 22 Q6W until discontinuation, pembrolizumab 400 mg via IV injection on day 1 Q6W for up to 18 cycles (up to ~2 years) AND investigator's choice of capecitabine 1000 mg/m^2 orally twice daily for 14 days Q3W OR 5-FU 2400 mg/m^2 IV once Q2W AND leucovorin 400 mg/m^2 via IV infusion Q2W OR levoleucovorin 200 mg/m^2 Q2W.

Administered via intravenous (IV) infusion.

Otros nombres:
  • MK-3475
  • Keytruda®

Administered via oral tablet.

Otros nombres:
  • XELODA

Administered via IV infusion.

Otros nombres:
  • ácido folínico
  • WELLCOVORIN®
  • folinato de calcio

Administered via IV infusion.

Otros nombres:
  • FUSILEV®
  • levofolinato de calcio
  • ácido levofolínico

Administered via IV infusion

Otros nombres:
  • ADRUCIL®

Administered via IV infusion

Otros nombres:
  • U3-1402
  • HER3-DXd
  • MK-1022

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Safety Lead-in Phase: Number of Participants Who Experience One or More Dose-Limiting Toxicities (DLTs)
Periodo de tiempo: Up to approximately 28 days

DLTs are defined as any treatment-emergent adverse events (TEAEs) not attributable to disease or disease-related processes that occur during the DLT evaluation period and are a Grade 3 or higher according to the National Cancer Institute Common Terminology for Adverse Events (NCI CTCAE) Version 5.0. The percentage of participants who experience at least one DLT will be reported.

Up to approximately 28 days
Safety Lead-in Phase: Number of Participants Who Experienced an Adverse Event (AE)
Periodo de tiempo: Up to approximately 28 days

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Up to approximately 28 days
Safety Lead-in Phase: Number of Participants Who Discontinued Study Intervention Due to an AE
Periodo de tiempo: Up to approximately 28 days

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Up to approximately 28 days
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Review (BICR)
Periodo de tiempo: Up to approximately 28 months

ORR is defined as the percentage of participants in the analysis population who have a Complete Response (CR: Disappearance of all target lesions) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1. The percentage of participants who experience CR or PR as assessed by BICR will be presented.

Up to approximately 28 months

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Progression-Free Survival (PFS) per RECIST 1.1 as Assessed by BICR
Periodo de tiempo: Up to approximately 55 months

PFS is defined as the time from randomization to the first documented progressive disease (PD) or death from any cause, whichever occurs first. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. PFS as assessed by BICR will be presented.

Up to approximately 55 months
Duration of Response (DOR) Per RECIST 1.1 as Assessed by BICR
Periodo de tiempo: Up to approximately 55 months

For participants who demonstrate a confirmed Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: at least a 30% decrease in the sum of diameters of target lesions) per RECIST 1.1, DOR is defined as the time from first documented evidence of CR or PR until PD or death. Per RECIST 1.1, PD is defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD. DOR as assessed by BICR will be presented.

Up to approximately 55 months
Overall Survival (OS)
Periodo de tiempo: Up to approximately 55 months

OS is defined as the time from randomization to the date of death from any cause.

Up to approximately 55 months
Number of Participants Who Experience an Adverse Event (AE)
Periodo de tiempo: Up to approximately 55 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Up to approximately 55 months
Number of Participants Who Discontinue Study Treatment Due to an AE
Periodo de tiempo: Up to approximately 55 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention.

Up to approximately 55 months
Incidence of Antidrug Antibodies (ADA) to investigational agents - (sacituzumab tirumotecan (sac-TMT, MK-2870) and patritumab deruxtecan (HER3-DXd))
Periodo de tiempo: At designated timepoints up to approximately 55 months

Blood samples collected at designated timepoints will be used to determine the ADA response to investigational agents. The incidence of ADAs over time will be presented.

At designated timepoints up to approximately 55 months

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Investigadores

  • Director de estudio: Medical Director, Merck Sharp & Dohme LLC

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

20 de septiembre de 2024

Finalización primaria (Estimado)

12 de septiembre de 2029

Finalización del estudio (Estimado)

12 de septiembre de 2029

Fechas de registro del estudio

Enviado por primera vez

17 de junio de 2024

Primero enviado que cumplió con los criterios de control de calidad

17 de junio de 2024

Publicado por primera vez (Actual)

24 de junio de 2024

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

13 de noviembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

12 de noviembre de 2026

Última verificación

1 de noviembre de 2026

Más información

Términos relacionados con este estudio

Otros números de identificación del estudio

  • 3475-06C
  • MK-3475-06C (Otro identificador: MSD)
  • KEYMAKER-06C (Otro identificador: MSD)
  • U1111-1299-8084 (Identificador de registro: UTN)
  • 2023-509307-33-00 (Identificador de registro: EU CT)
  • 2023 (Subvención/contrato del NIH de EE. UU.)

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

SÍ

Descripción del plan IPD

https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .