A Phase III Study Evaluating The Efficacy And Safety Of Crovalimab Versus Eculizumab In Participants With Paroxysmal Nocturnal Hemoglobinuria (PNH) Not Previously Treated With Complement Inhibitors. (COMMODORE 2)
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ClinicalTrials.gov Identifier: NCT04434092 |
Recruitment Status :
Active, not recruiting
First Posted : June 16, 2020
Last Update Posted : November 18, 2023
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Condition or disease | Intervention/treatment | Phase |
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Paroxysmal Nocturnal Hemoglobinuria | Drug: Crovalimab Drug: Eculizumab | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 214 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase III, Randomized, Open-Label, Active-Controlled, Multicenter Study Evaluating The Efficacy And Safety Of Crovalimab Versus Eculizumab In Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Not Previously Treated With Complement Inhibitors. |
Actual Study Start Date : | October 8, 2020 |
Actual Primary Completion Date : | November 16, 2022 |
Estimated Study Completion Date : | June 30, 2028 |

Arm | Intervention/treatment |
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Experimental: Arm A (Crovalimab)
Adult Participants will receive an initial intravenous (IV) loading dose on Week 1 Day 1, followed by 4 weekly crovalimab subcutaneous (SC) doses on Week 1 Day 2, then on Weeks 2, 3 and 4. Maintenance dosing will begin at Week 5 and will continue Q4W (every 4 weeks) thereafter, for a total of at least 24 weeks of study treatment.
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Drug: Crovalimab
Crovalimab will be administered at a dose of 1000 mg IV (for participants with body weight between 40 and 100kg) or 1500 mg IV (for participants with body weight >=100kg) on Week 1 Day 1. On Week 1 Day 2 and on Weeks 2, 3 and 4, it will be administered at a dose of 340 mg SC. For Week 5 and Q4W thereafter, it will be administered at a dose of 680 mg SC (for participants with body weight between 40 and 100kg) or 1020 mg SC (for participants with body weight >=100kg). Dosing schedule will be as described above. |
Active Comparator: Arm B (Eculizumab)
Adult Participants will receive initial IV weekly doses for 4 weeks which will be followed by Q2W (every 2 weeks) IV administrations starting on Week 5.
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Drug: Eculizumab
Eculizumab will be administered at a dose of 600 mg for the first 4 weeks, followed by maintenance doses of 900 mg starting on Week 5, as per the dosing schedule described above. |
Experimental: Arm C (Crovalimab) (Exploratory)
Paediatric participants will receive a loading series of Crovalimab comprised of an IV dose on Week 1 Day 1, followed by weekly crovalimab SC doses for 4 weeks on Week 1 (Day 2) then on Weeks 2, 3, and 4. Maintenance SC dosing will begin at Week 5 and will be administered Q4W thereafter. After 24 weeks of crovalimab treatment, participants who derive benefit from the drug may continue to receive crovalimab.
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Drug: Crovalimab
Crovalimab will be administered at a dose of 1000 mg IV (for participants with body weight between 40 and 100kg) or 1500 mg IV (for participants with body weight >=100kg) on Week 1 Day 1. On Week 1 Day 2 and on Weeks 2, 3 and 4, it will be administered at a dose of 340 mg SC. For Week 5 and Q4W thereafter, it will be administered at a dose of 680 mg SC (for participants with body weight between 40 and 100kg) or 1020 mg SC (for participants with body weight >=100kg). Dosing schedule will be as described above. |
- Percentage of Participants who achieve Transfusion Avoidance (TA) [ Time Frame: Baseline through Week 25 ]TA is defined as patients who are packed Red Blood Cell (pRBC) transfusion-free and do not require transfusion per protocol-specified guidelines.
- Percentage of Participants with hemolysis control [ Time Frame: Week 5 through Week 25 ]Measured by LDH =< 1.5 x ULN (as measured at the central laboratory).
- Percentage of Participants with Breakthrough Hemolysis (BTH) [ Time Frame: Baseline through Week 25 ]BTH is defined as at least one new or worsening symptom or sign of intravascular hemolysis (fatigue, hemoglobinuria, abdominal pain, shortness of breath [dyspnea], anemia [hemoglobin < 10 g/dL], a major adverse vascular event [MAVE; including thrombosis], dysphagia, or erectile dysfunction) in the presence of elevated LDH >= 2 x ULN after prior reduction of LDH to =<1.5 x ULN on treatment.
- Percentage of Participants with Stabilization of Hemoglobin [ Time Frame: Baseline through Week 25 ]Stabilized hemoglobin is defined as avoidance of a >= 2 g/dL decrease in hemoglobin level from baseline, in the absence of transfusion.
- Mean Change in Fatigue [ Time Frame: Baseline up to Week 25 ]Assessed by the FACIT-Fatigue Questionnaire.
- Percentage of Participants with Adverse Events (AEs) [ Time Frame: Up to 7 years ]Determined according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events, Version 5.
- Percentage of Participants with Injection-Site Reactions, Infusion-Related Reactions, Hypersensitivity and Infections (including meningococcal meningitis) [ Time Frame: Up to 7 years ]
- Percentage of Participants with Adverse Events (AEs) leading to Study Drug Discontinuation [ Time Frame: Up to 7 years ]
- Percentage of Participants with clinical manifestations of Drug-Target-Drug Complex (DTDC) formation amongst those participants who switched to crovalimab treatment from eculizumab treatment [ Time Frame: Up to 6.5 years ]
- Serum concentrations of crovalimab and eculizumab over time [ Time Frame: Up to 6.5 years ]
- Percentage of Participants with Anti-Crovalimab Antibodies [ Time Frame: Up to 6.5 years ]
- Change in PD biomarkers including complement activity (CH50) over time [ Time Frame: Up to 6.5 years ]Assessed by a Liposome Immunoassay (LIA) and total C5 concentration
- Change over time in free C5 concentration in crovalimab-treated participants [ Time Frame: Up to 6.5 years ]
- Observed Value in Reticulocyte Count (count/mL) [ Time Frame: Up to 6.5 years ]
- Observed Value in Free Hemoglobin and Haptoglobin (mg/dL) [ Time Frame: Up to 6.5 years ]
- Change in Reticulocyte Count (count/mL) [ Time Frame: Baseline up to Week 25 ]
- Change in Free Hemoglobin and Haptoglobin (mg/dL) [ Time Frame: Baseline up to Week 25 ]

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | Child, Adult, Older Adult |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Body weight >= 40 kg at screening.
- Willingness and ability to comply with all study visits and procedures.
- Documented diagnosis of PNH, confirmed by high sensitivity flow cytometry.
- LDH level >= 2x ULN at screening (as per local assessment).
- Vaccination against Neisseria meningitidis serotypes A, C, W, < 3 years prior to initiation of study treatment; or, if not previously done, vaccination administered no later than one week after the first drug administration.
- Women of childbearing potential: agreement to remain abstinent or use contraception during the treatment period and for 10.5 months after the final dose of crovalimab or for 3 months after the final dose of eculizumab (or longer if required by the local product label).
Exclusion Criteria:
- Current or previous treatment with a complement inhibitor.
- History of allogeneic bone marrow transplantation.
- History of Neisseria meningitidis infection within 6 months prior to screening and up to first study drug administration.
- History of myelodysplastic syndrome with Revised International Prognostic Scoring System (IPSS-R) prognostic risk categories of intermediate, high and very high.
- Pregnant or breastfeeding, or intending to become pregnant during the study, within 10.5 months after the final dose of crovalimab, or 3 months after the final dose of eculizumab (or longer if required by the local product label).
- Participation in another interventional treatment study with an investigational agent or use of any experimental therapy within 28 days of screening or within 5 half-lives of that investigational product, whichever is greater.
- Concurrent disease, treatment, procedure or surgery, or abnormality in clinical laboratory tests that could interfere with the conduct of the study, may pose any additional risk for the participant, or would, in the opinion of the Investigator, preclude the participant's safe participation in and completion of the study.
- Splenectomy < 6 months before screening.
- Positive for Active Hepatitis B and C infection (HBV/HCV).
- History of or ongoing cryoglobulinemia at screening.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04434092

Study Director: | Clinical Trials | Hoffmann-La Roche |
Responsible Party: | Hoffmann-La Roche |
ClinicalTrials.gov Identifier: | NCT04434092 |
Other Study ID Numbers: |
BO42162 2019-004931-21 ( EudraCT Number ) |
First Posted: | June 16, 2020 Key Record Dates |
Last Update Posted: | November 18, 2023 |
Last Verified: | November 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
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/ourmember/roche/). 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/research_and_development/who_we_are_how_we_work/clinical_trials/our_commitment_to_data_sharing.htm). |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Hemoglobinuria Hemoglobinuria, Paroxysmal Proteinuria Urination Disorders Urologic Diseases Female Urogenital Diseases Female Urogenital Diseases and Pregnancy Complications Urogenital Diseases Male Urogenital Diseases Urological Manifestations |
Anemia, Hemolytic Anemia Hematologic Diseases Myelodysplastic Syndromes Bone Marrow Diseases Eculizumab Complement Inactivating Agents Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs |