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A Study Evaluating the Efficacy, Safety, Pharmacokinetics and Pharmacodynamics of Crovalimab in Participants With Paroxysmal Nocturnal Hemoglobinuria (PNH) Not Previously Treated With Complement Inhibition
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Blood Disorder -
Paroxysmal nocturnal hemoglobinuria (PNH)
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Basic Details
Sponsor
Hoffmann-La Roche
Phase
Phase 3
Study Identifier
NCT04654468, YO42311
Condition
Paroxysmal Nocturnal Hemoglobinuria
Official Title
A Phase III, Multicenter, Single Arm Study Evaluating the Efficacy, Safety, Pharmacokinetics, and Pharmacodynamics of Crovalimab in Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH) Not Previously Treated With Complement Inhibition
Study Summary
This study will enroll participants aged 12 years or older with a body weight ≥ 40 kilograms (kg) diagnosed with PNH who have not been previously treated with complement inhibitor therapy. Approximately 50 participants will be treated with Crovalimab for at least 24 weeks.
Eligibility Criteria
All
≥12 Years
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 Levels ≥ 2x the ULN at screening
- Participants who have at least four transfusions during 12 months prior to screening (documented in the medical record)
- Presence of one or more of the PNH-related signs or symptoms within 3 months of screening
- Vaccination against Neisseria meningitidis serotypes A, C, W, and Y < 3 years prior to initiation of study treatment (Day 1)
- Vaccination against Haemophilius influenzae type B and Streptococcus pneumonia according to national vaccination recommendations
- For participants receiving other therapies (e.g., immunosuppressants, corticosteroids): stable dose for ≥ 28 days prior to screening and up to the first drug administration
- Adequate hepatic and renal function
- Women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception during the treatment period and for 46 weeks (approximately 10.5 months) after the final dose of crovalimab
- Platelet count ≥30,000 per cubic millimeter (mm^3) at screening
- ANC > 500/microlitres (μl) at screening
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 drug administration
- Known or suspected immune or hereditary complement deficiency
- Known HIV infection with cluster of differentiation 4 (CD4) count < 200 cells/µl within 24 weeks prior to screening
- Infection requiring hospitalization or treatment with IV antibiotics within 28 days prior to screening and up to the first drug administration, or oral antibiotics within 14 days prior to screening and up to the first drug administration
- Active systemic bacterial, viral, or fungal infection within 14 days before first drug administration
- Presence of fever (≥ 38˚C) within 7 days before the first drug administration
- Splenectomy < 6 months before screening
- History of malignancy within 5 years prior to screening and up to the first drug administration
- Pregnant or intending to become pregnant during the study or within 46 weeks (10.5 months) after the final dose of study treatment
- 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
This page summarises information from public registry websites, such as ClinicalTrials.gov, EuClinicalTrials.eu, ISRCTN.com, etc. To learn more about this study, see the For Medical Professional tab or visit one of those websites.
The information is taken directly from public registry websites such as ClinicalTrials.gov, EuClinicalTrials.eu, ISRCTN.com, etc., and has not been edited.
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For the latest version of this information please go to www.forpatients.roche.com