Study to Assess Safety, Efficacy, Pharmacokinetics, and Pharmacodynamics of Crovalimab in Healthy Volunteers and Participants With Paroxysmal Nocturnal Hemoglobinuria (COMPOSER)

February 26, 2024 updated by: Hoffmann-La Roche

An Adaptive Phase I/II Study to Assess Safety, Efficacy, Pharmacokinetics and Pharmacodynamics of Crovalimab in Healthy Volunteers and Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH)

This is a Phase I/II, first-in-human study consisting of four sequential parts and an open-label extension (OLE). The safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of single doses of crovalimab will be evaluated in healthy volunteers (HV) during part 1. The safety, tolerability, PK and PD of multiple doses of crovalimab will be evaluated in participants with paroxysmal nocturnal hemoglobinuria (PNH) in parts 2, 3, 4, and OLE of the study. Efficacy of crovalimab will be evaluated in Parts 2, 3, and 4.

Study Overview

Status

Active, not recruiting

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

59

Phase

  • Phase 2
  • Phase 1

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

      • Paris, France, 75475
        • Institut hematologie Centre Hayem CHU paris Saint-Louis Lariboisiere F Widal Hopital St Louis
      • Pierre Benite, France, 69495
        • Centre Hospitalier Lyon Sud
      • Aachen, Germany, 52074
        • Uniklinik RWTH Aachen; Klinik IV; Klinik Hämatologie, Onkologie, Hämostaseologie und Stamm.
      • Essen, Germany, 45122
        • Universitätsklinikum Essen; Klinik für Hämatologie
      • Riesa, Germany, 01589
        • Elblandklinikum Riesa; Klinik fuer Haematologie Onkologie und Gastroenterologie
      • Ulm, Germany, 89081
        • Universitätsklinikum Ulm; Institut für Klinische Transfusionsmedizin
      • Budapest, Hungary, 1083
        • Semmelweis Egyetem, 1. Szamu Belgyogyaszati Klinika, Diabetologia
      • Kaposvar, Hungary, 7400
        • Kaposi Mor Teaching Hospital, Dept of Internal Medicine/Hematology
    • Campania
      • Napoli, Campania, Italy, 80136
        • A.O. UNIVERSITARIA FEDERICO II DI NAPOLI;Dipartimento di Medicina Clinica e Chirurgia
    • Lazio
      • Roma, Lazio, Italy, 00168
        • Policlinico Universitario Agostino Gemelli
    • Veneto
      • Vicenza, Veneto, Italy, 36100
        • Ospedale Di Vicenza; Nefrologia, Ematologia
      • Miyagi, Japan, 980-8574
        • Tohoku University Hospital
      • Osaka, Japan, 565-0871
        • Osaka University Hospital; Hematology and Oncology
      • Tokyo, Japan, 160-0023
        • Tokyo Medical University Hospital
      • Tokyo, Japan, 141-8625
        • Ntt Medical Center Tokyo
      • Tsukuba, Japan, 305-8576
        • University of Tsukuba Hospital; Hematology
      • Seoul, Korea, Republic of, 03722
        • Severance Hospital, Yonsei University Health System
      • Seoul, Korea, Republic of, 110-744
        • Seoul National University Hosp; Dept Internal Med Hem Onc
      • Groningen, Netherlands, 9728 NZ
        • Pra International Group B.V

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

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

Part 1 (HVs only):

  • Healthy male volunteers, aged between 21 and 55 years inclusive
  • Participants with a negative hepatitis B surface antigen (HBsAg), hepatitis B core antibody (HBcAb), hepatitis C antibody, and human immunodeficiency virus (HIV) test result
  • Participants who have been vaccinated against hepatitis B
  • No evidence of Neisseria meningococci in nasopharyngeal swab
  • Neisseria meningitidis vaccination against serogroups B and A, C, W, and Y
  • Non-smokers, or former smokers, who have not smoked for at least 60 days prior to screening

Parts 2, 3 and 4 (PNH participants only):

  • Male or female participants with PNH between 18 and 75 years of age
  • Neisseria meningitidis vaccination in accordance with most current local guidelines or standard of care (SOC) for participants at increased risk for meningococcal disease (Part 2 and 4)
  • Participant has been vaccinated with Neisseria meningitidis vaccine(s) in accordance with most current local guidelines or SOC for participants at increased risk for meningococcal disease or is being revaccinated if applicable (Part 3 and 4)
  • Antibiotic prophylaxis for meningococcal infection must be initiated prior to initiation of crovalimab therapy if the time period between initial Neisseria meningitidis vaccination and first dose of crovalimab is less than 2 weeks (Part 2 and 4)
  • Antibiotic prophylaxis of meningococcal infection may be initiated prior to initiation of crovalimab therapy based on local guidelines or SOC for participants at increased risk for meningococcal disease e.g., splenectomized patients (Parts 2 and 4)
  • Stable dose for greater than or equal to (>/=) 28 days prior to screening of other therapies (immunosuppressant therapy, corticosteroids, iron supplements)

Part 2 and 4 (currently untreated PNH participants who are candidates for treatment with complement inhibitors only):

  • PNH participants who have not been treated with any complement inhibitor or if previously treated stopped treatment due to lack of efficacy based on a single missense C5 heterozygous mutation
  • Serum LDH levels at least 1.5-fold above the ULN at screening
  • Hepatitis B participants can be enrolled if their liver function test values are less than 2 x ULN and there is no liver function impairment

Part 3 and 4 (PNH participants currently treated with eculizumab only):

  • PNH participants who have been treated continuously with eculizumab for at least 3 months preceding enrollment in the trial
  • Participants receive regular infusions of eculizumab
  • Subjects with a negative hepatitis B surface antigen (HBsAg), hepatitis B core antibody (HBcAb), hepatitis C antibody, and HIV test result

OLE only - PNH participants:

  • PNH participants who have completed Parts 2, 3 and 4 respectively
  • PNH participants who derived, in the investigator's opinion, benefit from treatment with crovalimab
  • Vaccination currency for Neisseria meningitidis serotypes A, C, W, Y and B should be maintained throughout the OLE

All Parts:

  • Female participants should use proper means of contraception

Exclusion Criteria:

Part 1 (HVs only):

  • Any clinically relevant history or the presence of moderate to severe respiratory, renal, hepatic, gastrointestinal, hematological, lymphatic, neurological, cardiovascular, psychiatric, musculoskeletal, or connective tissue disease
  • Any major illness within 1 month before the screening
  • Prior splenectomy
  • History of clinically significant hypersensitivity (example: drugs, excipients) or allergic reactions
  • History or presence of clinically significant electrocardiogram (ECG) abnormalities or cardiovascular disease
  • Any contra-indication for receiving Neisseria meningitides vaccination and antibiotic prophylaxis therapy as required in the study
  • Congenital or acquired complement deficiency
  • Carriers of Neisseria meningitides based on cultures from nasopharyngeal swabs
  • Known active viral, bacterial or fungal infection including herpes, herpes zoster or cold sores, during the last 14 days prior to first study drug administration
  • Signs of parasitic infection (example: eosinophilia, diarrhea)
  • History of significant recurrent infections in the opinion of the investigator

Parts 2, 3 and 4 - PNH participants only:

  • Evidence of moderate to severe concurrent renal, liver, cardiac, pulmonary or gastrointestinal disease not related to PNH as determined by the investigator
  • History of an illness that, in the opinion of the study investigator, might confound the results of the study or that poses an additional risk to the participant by his or her participation in the study
  • History of bone marrow transplantation
  • Treatment with azathioprine or erythrocyte-stimulating agents within 14 days prior to first study drug administration
  • Splenectomy <1 year before start of crovalimab.

Part 3 and 4 - PNH patients only:

  • Any evidence of sero-positive auto-immune connective tissue diseases (such as systemic lupus erythematosus, or rheumatoid arthritis)
  • Any evidence of active inflammatory conditions (including inflammatory bowel disease, or cryoglobulinemia)

All Parts:

  • Under active therapy with intravenous immunoglobulin (IVIG)
  • Mentally incapacitated or history of a clinically significant psychiatric disorder over the previous 5 years
  • Known or suspected hereditary complement deficiency
  • History of meningococcal meningitis
  • History of allergic or anaphylactic reactions to human, humanized, or murine monoclonal antibodies or known hypersensitivity to any constituent of the product
  • Any major episode of infection requiring hospitalization or treatment with intravenous (IV) antibiotics within 28 days prior to screening or oral antibiotics within 2 weeks prior to screening and up to first study drug administration
  • History of or currently active primary or secondary immunodeficiency, including known history of human immunodeficiency virus (HIV) infection
  • Evidence of chronic active hepatitis C infection
  • Evidence of malignant disease including myelodysplastic syndrome, or malignancies diagnosed within the previous 5 years
  • Pregnant or breastfeeding, or intending to become pregnant during the study, including the OLE period, within 46 weeks (approximately 10.5 months) after the final dose of crovalimab

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: Sequential Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Part 1 (Healthy Volunteers): Crovalimab
Healthy participants will receive a single dose of crovalimab in each dose-escalation cohort of Part 1. Crovalimab will be administered at a starting dose of 75 milligrams (mg) intravenous (IV) infusion. Doses are planned to be escalated up to Cohort 5.
Crovalimab will be administered as per schedule described in individual arm.
Placebo Comparator: Part 1 (Healthy Volunteers): Placebo
Healthy participants will receive a single dose of crovalimab matching placebo in each dose-escalation cohort of Part 1.
Placebo will be administered as per schedule described in Part 1 placebo arm.
Experimental: Part 2 (PNH Participants): Crovalimab
PNH participants will receive 3 single ascending doses (375 mg IV, 500 mg IV, 1000 mg IV of crovalimab) on Days 1, 8, and 22 followed by weekly crovalimab administrations up to a maximum of 5 months. Weekly crovalimab administrations will start no earlier than Day 36. The starting dose of Part 2 is based on data from Part 1 of the study.
Crovalimab will be administered as per schedule described in individual arm.
Experimental: Part 3 (PNH Participants): Crovalimab QW
Participants will receive crovalimab at a dose of 1000 mg on Day 1 and 170 mg weekly (QW) starting on Day 8 for a maximum treatment duration of 5 months.
Crovalimab will be administered as per schedule described in individual arm.
Experimental: Part 3 (PNH Participants): Crovalimab Q2W
Participants will receive crovalimab at a dose of 1000 mg on Day 1 and 340 mg every 2 weeks (Q2W) for a maximum treatment duration of 5 months.
Crovalimab will be administered as per schedule described in individual arm.
Experimental: Part 3 (PNH Participants): Crovalimab Q4W
Participants will receive crovalimab at a dose of 1000 mg on Day 1 and 680 mg every 4 weeks (Q4W) starting on Day 8 for a maximum treatment duration of 5 months.
Crovalimab will be administered as per schedule described in individual arm.
Experimental: Part 4 (treatment naïve PNH Participants): Crovalimab

Treatment naïve PNH Participants will receive:

Participants >/= 100 kg: loading dose of 1500 mg IV on day 1; Participants < 100 kg: loading dose of 1000 mg IV on day 1. In all Participants, the remainder of the loading series schedule will be 340 mg SC on Days 2, 8, 15, and 22. For Participants >/= 100 kg, maintenance dosing will be 1020 mg SC on week 5 and then Q4W thereafter. Patients < 100 kg will receive a maintenance dose of 680 mg SC on the same schedule.

Crovalimab will be administered as per schedule described in individual arm.
Experimental: OLE (PNH Participants): Crovalimab
PNH Participants who participated in Parts 2, 3 and 4 and who derive clinical benefit from crovalimab may enroll into OLE. Participants will either receive 680 mg SC Q4W (body weight >/= 40 kg to < 100 kg) or 1020 mg SC Q4W (body weight >/= 100 kg) for up to a maximum treatment duration of ten years from entry into OLE.
Crovalimab will be administered as per schedule described in individual arm.
Experimental: Part 4 (eculizumab pretreated PNH Participants): Crovalimab

PNH Participants pretreated with eculizumab will receive crovalimab:

Participants >/= 100 kilograms (kg): loading dose of 1500 mg IV on Day 1; Participants < 100 kg: loading dose of 1000 mg IV on Day 1. In all Participants, the remainder of the loading series schedule will be 340 mg subcutaneous (SC) on Days 2, 8, 15, and 22. For Participants >/= 100 kg, maintenance dosing will be 1020 mg SC on week 5 and then Q4W thereafter. Patients < 100 kg will receive a maintenance dose of 680 mg SC on the same schedule.

Crovalimab will be administered as per schedule described in individual arm.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Part 1: Percentage of Participants With Dose-Limiting Events (DLEs)
Time Frame: Baseline up to approximately 3 months
Baseline up to approximately 3 months
Part 1: Percentage of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
Time Frame: Baseline up to approximately 3 months
Baseline up to approximately 3 months
Part 2: Percentage of Participants With AEs and SAEs
Time Frame: Baseline up to approximately 8 months
Baseline up to approximately 8 months
Part 3: Percentage of Participants With AEs and SAEs
Time Frame: Baseline up to approximately 8 months
Baseline up to approximately 8 months
Part 4: Percentage of Participants With AEs and SAEs
Time Frame: Baseline up to approximately 8 months
Baseline up to approximately 8 months
Part 2: Terminal Complement Activity in Serum as Assessed by Ex Vivo Liposome Immunoassay (LIA)
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 3: Terminal Complement Activity as Assessed by Ex Vivo Liposome Lysis in Serum Using the LIA
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 4: Terminal Complement Activity in Serum as Assessed by Ex Vivo Liposome Immunoassay (LIA)
Time Frame: Baseline up to Day 224
Baseline up to Day 224
OLE: Percentage of Participants With AEs and SAEs
Time Frame: OLE: Week 21 up to Week 567
OLE: Week 21 up to Week 567

Secondary Outcome Measures

Outcome Measure
Time Frame
Part 2: Participant Treatment Satisfaction as Measured by Treatment Satisfaction Questionnaire for Medication (TSQM) Score at Day 8, 22, 36, 50 and 64
Time Frame: Baseline, Day 8, 22, 36, 50, 64
Baseline, Day 8, 22, 36, 50, 64
Part 2: Number of Packed Red Blood Cell (RBC) Units Transfused per Participant
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 3: Number of Packed RBCs Units Transfused per Participant
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 4: Number of Packed RBCs Units Transfused per Participant
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 2: Percentage of Participants With Packed RBC Units Transfused
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 3: Percentage of Participants With Packed RBC Units Transfused
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 4: Percentage of Participants With Packed RBC Units Transfused
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 1: Percentage of Participants With Anti-Drug Antibodies (ADAs) to Crovalimab
Time Frame: Part 1: Day 1 up to Day 91 (assessed at predose [Hour 0] on Day 1; on Days 14, 28, 56, 84, and 91)
Part 1: Day 1 up to Day 91 (assessed at predose [Hour 0] on Day 1; on Days 14, 28, 56, 84, and 91)
OLE: Terminal Complement Activity in Serum as Assessed by Ex Vivo Liposome Immunoassay (LIA)
Time Frame: OLE: Week 36 up to Week 521
OLE: Week 36 up to Week 521
Part 2: Percentage of Participants With LDH Below Upper Limit of Normal (ULN)
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 3: Percentage of Participants With LDH Below ULN
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 4: Percentage of Participants With LDH Below ULN
Time Frame: Baseline up to Day 224
Baseline up to Day 224
Part 2: Percentage of Participants With Complement Suppression
Time Frame: Baseline up to Day 134
Baseline up to Day 134
Part 3: Percentage of Participants With Complement Suppression
Time Frame: Baseline up to Day 134
Baseline up to Day 134
Part 4: Percentage of Participants With Complement Suppression
Time Frame: Baseline up to Day 134
Baseline up to Day 134
Part 1: Terminal Complement Activity as Assessed by Ex Vivo Liposome Immunoassay (LIA)
Time Frame: Part 1: Baseline up to Day 91 (assessed at predose [Hour 0], end of infusion [EOI] [1 Hour], Hours 2, 6, 12 on Day 1; Days 2, 3, 4, 5, 7, 14, 21, 28, 35, 42, 56, 91)
Part 1: Baseline up to Day 91 (assessed at predose [Hour 0], end of infusion [EOI] [1 Hour], Hours 2, 6, 12 on Day 1; Days 2, 3, 4, 5, 7, 14, 21, 28, 35, 42, 56, 91)
Part 2: Serum Lactate Dehydrogenase (LDH) Levels
Time Frame: Predose (Hour 0), Hours 10-12 on Days 1, 8; Days 2, 5, 9, 15, 22, 29, 36, 43, 50, 64, 78, 92, 106, 120, 134, 224
Predose (Hour 0), Hours 10-12 on Days 1, 8; Days 2, 5, 9, 15, 22, 29, 36, 43, 50, 64, 78, 92, 106, 120, 134, 224
Part 3: Serum LDH Levels
Time Frame: Part 3: Predose (Hour 0), Hours 10-12 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 36, 64, 78, 92, 106, 134; Day 224
Part 3: Predose (Hour 0), Hours 10-12 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 36, 64, 78, 92, 106, 134; Day 224
Part 4: Serum LDH Levels
Time Frame: Part 4: Predose (Hour 0), Hour 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 43, 57, 85, 113, 134; Day 224
Part 4: Predose (Hour 0), Hour 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 43, 57, 85, 113, 134; Day 224
Part 1: Total Complement Component 5 (C5) Concentration
Time Frame: Part 1: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 12 on Day 1; Days 2, 3, 4, 5, 7, 14, 21, 28, 35, 42, 56, 91
Part 1: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 12 on Day 1; Days 2, 3, 4, 5, 7, 14, 21, 28, 35, 42, 56, 91
Part 2: Total C5 Concentration
Time Frame: Part 2: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 10-12 on Day 1; Days 2, 5, 9, 15, 29, 224; predose [Hour 0], EOI [1 Hour], Hours 10-12 on Days 8, 22; predose [Hour 0] on Days 36, 43, 50, 64, 78, 92, 106, 120, 134
Part 2: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 10-12 on Day 1; Days 2, 5, 9, 15, 29, 224; predose [Hour 0], EOI [1 Hour], Hours 10-12 on Days 8, 22; predose [Hour 0] on Days 36, 43, 50, 64, 78, 92, 106, 120, 134
Part 3: Total C5 Concentration
Time Frame: Part 3: Predose (Hour 0), EOI (1 Hour), Hours 2 and 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 36, 43, 50, 57, 64, 78, 92, 106; Day 224
Part 3: Predose (Hour 0), EOI (1 Hour), Hours 2 and 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 36, 43, 50, 57, 64, 78, 92, 106; Day 224
Part 4: Total C5 Concentration
Time Frame: Part 4: Predose (Hour 0), EOI (1 Hour), Hours 2, 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 57, 85, 113; Days 43, 134, 224
Part 4: Predose (Hour 0), EOI (1 Hour), Hours 2, 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 57, 85, 113; Days 43, 134, 224
Part 1: Free C5 Concentration
Time Frame: Part 1: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 12 on Day 1; Days 2, 3, 4, 5, 7, 14, 21, 28, 35, 42, 56, 91
Part 1: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 12 on Day 1; Days 2, 3, 4, 5, 7, 14, 21, 28, 35, 42, 56, 91
Part 2: Free C5 Concentration
Time Frame: Part 2: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 10-12 on Day 1; Days 2, 5, 9, 15, 29, 224; predose [Hour 0], EOI [1 Hour], Hours 10-12 on Days 8, 22; predose [Hour 0] on Day 36, 43, 50, 64, 78, 92, 106, 120, 134
Part 2: Predose (Hour 0), EOI (1 Hour), Hours 2, 6, 10-12 on Day 1; Days 2, 5, 9, 15, 29, 224; predose [Hour 0], EOI [1 Hour], Hours 10-12 on Days 8, 22; predose [Hour 0] on Day 36, 43, 50, 64, 78, 92, 106, 120, 134
Part 3: Free C5 Concentration
Time Frame: Part 3: Predose (Hour 0), EOI (1 Hour), Hours 2, 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 36, 43, 50, 57, 64, 78, 92, 106; Day 224
Part 3: Predose (Hour 0), EOI (1 Hour), Hours 2, 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 36, 43, 50, 57, 64, 78, 92, 106; Day 224
Part 4: Free C5 Concentration
Time Frame: Part 4: Predose (Hour 0), EOI (1 Hour), Hours 2, 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 57, 85, 113; Days 43, 134, 224
Part 4: Predose (Hour 0), EOI (1 Hour), Hours 2, 6 on Day 1; predose (Hour 0), on Days 2, 8, 15, 22, 29, 57, 85, 113; Days 43, 134, 224
Part 2: Change From Baseline in Fatigue as Measured by Functional Assessment of Chronic Illness Therapy (FACIT)-Fatigue Scale Score at Day 64
Time Frame: Baseline, Day 64
Baseline, Day 64
Part 3: Change From Baseline in Fatigue as Measured by FACIT-Fatigue Scale Score at Day 8, 22, 50, 78, 106, and 134
Time Frame: Baseline, Day 8, 22, 50, 78, 106, 134
Baseline, Day 8, 22, 50, 78, 106, 134
Part 4: Change From Baseline in Fatigue as Measured by FACIT-Fatigue Scale Score at Day 8, 22, 57, 85, 113 and 134
Time Frame: Baseline, Day 8, 22, 57, 85, 113, 134
Baseline, Day 8, 22, 57, 85, 113, 134
Part 2: Change From Baseline in Health-Related Quality of Life (HRQoL) as Measured by European Organization for Research and Treatment of Cancer Core Quality of Life Questionnaire (EORTC QLQ-C30) Score at Day 64
Time Frame: Baseline, Day 64
Baseline, Day 64
Part 3: Change From Baseline in HRQoL as Measured by EORTC QLQ-C30 Score at Day 78 and 134
Time Frame: Baseline, Day 78, 134
Baseline, Day 78, 134
Part 4: Change From Baseline in HRQoL as Measured by EORTC QLQC30 Score at Day 85 and 134
Time Frame: Baseline, Day 85, 134
Baseline, Day 85, 134
Part 3: Participant Treatment Satisfaction as Measured by TSQM Score at Day 8 and 50
Time Frame: Baseline, Day 8, 50
Baseline, Day 8, 50
Part 4: Participant Treatment Satisfaction as Measured by TSQM Score at Day 8 and 57
Time Frame: Baseline, Day 8, 57
Baseline, Day 8, 57
Part 2: Percentage of Participants With ADAs to Crovalimab
Time Frame: Part 2: Day 1 up to Day 224 (assessed at predose [Hour 0] on Days 1, 8, 50, 106, 134); Days 29, 224
Part 2: Day 1 up to Day 224 (assessed at predose [Hour 0] on Days 1, 8, 50, 106, 134); Days 29, 224
Part 3: Percentage of Participants With ADAs to Crovalimab
Time Frame: Part 3: Day 1 up to Day 106 assessed at predose [Hour 0] on Days 1, 8, 29, 64, and 106; Day 224
Part 3: Day 1 up to Day 106 assessed at predose [Hour 0] on Days 1, 8, 29, 64, and 106; Day 224
Part 4: Percentage of Participants With ADAs to Crovalimab
Time Frame: Day 1 up to Day 224 (assessed at predose [Hour 0] on Days 1, 8, 29, 113); Days 134, 224
Day 1 up to Day 224 (assessed at predose [Hour 0] on Days 1, 8, 29, 113); Days 134, 224
OLE: Total C5 Concentration
Time Frame: OLE: Predose (Hour 0) on Week 36 up to Week 521
OLE: Predose (Hour 0) on Week 36 up to Week 521
OLE: Serum LDH Levels
Time Frame: OLE: Predose (Hour 0) on Week 28 up to Week 521
OLE: Predose (Hour 0) on Week 28 up to Week 521
Part 2: Monthly Rate of pRBC Transfusions per Participant
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 3: Monthly Rate of pRBC Transfusions per Participant
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 4: Monthly Rate of pRBC Transfusions per Participant
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 2: Proportion of Transfusion-Free Participants
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 3: Proportion of Transfusion-Free Participants
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 4: Proportion of Transfusion-Free Participants
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 2: Annual Rate of Transfusion Avoidance per Participant
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 3: Annual Rate of Transfusion Avoidance per Participant
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 4: Annual Rate of Transfusion Avoidance per Participant
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 2: Annual Rate of Breakthrough Hemolysis (BTH)
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 3: Annual Rate of Breakthrough Hemolysis (BTH)
Time Frame: Baseline up to 10 years
Baseline up to 10 years
Part 4: Annual Rate of Breakthrough Hemolysis (BTH)
Time Frame: Baseline up to 10 years
Baseline up to 10 years

Collaborators and Investigators

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

Collaborators

Investigators

  • Study Director: Clinical Trials, Hoffmann-La Roche

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.

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)

November 14, 2016

Primary Completion (Estimated)

March 31, 2031

Study Completion (Estimated)

June 10, 2031

Study Registration Dates

First Submitted

November 1, 2016

First Submitted That Met QC Criteria

May 16, 2017

First Posted (Actual)

May 17, 2017

Study Record Updates

Last Update Posted (Actual)

February 28, 2024

Last Update Submitted That Met QC Criteria

February 26, 2024

Last Verified

February 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Qualified researchers may request access to individual patient level data through the clinical study data request platform (www.vivli.org). Further details on Roche's criteria for eligible studies are available here (https://vivli.org/members/ourmembers/). For further details on Roche's Global Policy on the Sharing of Clinical Information and how to request access to related clinical study documents, see here (https://www.roche.com/innovation/process/clinical -trials/data-sharing/)

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.

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