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NCT04901936PHASE2Recruiting

A Study of Pegcetacoplan in Pediatric Patients With Paroxysmal Nocturnal Hemoglobinuria (PNH)

Apellis Pharmaceuticals, Inc.

Start Date

2/4/2021

Completion Date

12/1/2028

Summary

The purpose of this study is to evaluate the safety, effectiveness, and biological activity (how the investigational medication is processed by the body) of pegcetacoplan in 12-17 year-olds (adolescents) who have paroxysmal nocturnal hemoglobinuria (PNH).

Detailed Description

This is an open-label study to evaluate pegcetacoplan in people with PNH who are 12-17 years old. The study will consist of a 4-week screening period followed by a 16-week treatment period. Participants switching from a C5 inhibitor will have an additional 4 week run-in period between the screening and treatment periods. At the completion of the study treatment period, participants will either enter a long-term extension period or a 2-month follow-up period. All eligible study participants will receive pegcetacoplan, administered via subcutaneous infusion twice a week at home. The subcutaneous infusion requires two small needles to be inserted into the fatty layer of tissue under the skin and the investigational medication will flow into the body. Study participants and/or caregivers will be trained on home administration of pegcetacoplan.

Eligibility Criteria

Age Range: 12 years to 17 years

Inclusion Criteria: * Are 12-17 years old at the time of screening * Weigh at least 20 kg (approx. 44 lbs) * Have the diagnosis of PNH, confirmed by high-sensitivity flow cytometry (granulocyte or monocyte clone \>10%) * EITHER: * Not being treated with an approved complement inhibitor (eculizumab or ravulizumab) prior to start of pegcetacoplan dosing, AND have hemolytic anemia. Hemolytic anemia is defined as hemoglobin (Hb) less than the lower limit of normal (Hb \< LLN) and LDH \>1.5 times the upper limit of normal (ULN); OR * Currently receiving treatment with an approved complement inhibitor (eculizumab or ravulizumab) AND have evidence of ongoing anemia. Ongoing anemia is defined as Hb \< LLN and ARC \> ULN * Have a platelet count \>75,000/mm3 and an absolute neutrophil count \>1000/mm3 Exclusion Criteria: * Are an adult, 18 years of age or older, with PNH * Known or suspected hereditary fructose intolerance (HFI) * History of hereditary complement deficiency, bone marrow transplant, or meningococcal disease (meningitis, bacteremia or septicemia) * Females who are pregnant or breastfeeding

Interventions

DRUG

Pegcetacoplan

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Conditions

Paroxysmal Nocturnal Hemoglobinuria (PNH)Paroxysmal Hemoglobinuria

Locations

Children's Hospital of Atlanta

Atlanta, Georgia 30329

United States

Motol University Hospital

Prague, 150 06

Czechia

Robert-Debré Hospital Paris

Paris, 75009

France

Hospital Ampang

Ampang, 68000

Malaysia

Radboud University Hospital Nijmegen

Nijmegen, 6525 GA

Netherlands

University Medical Center Utrecht

Utrecht, 3508 GA

Netherlands

University Children's Hospital

Belgrade, 11000

Serbia

University Hospital Vall d'Hebron

Barcelona, E-08035

Spain

University Hospital 12 de Octubre

Madrid, E-28041

Spain

Phramongkutklao Hospital and College of Medicine

Bangkok, 10400

Thailand

Maharaj Nakorn Chiang Mai hospital

Chiang Mai, 50200

Thailand

St. Mary's Hospital

London, W2 1NY

United Kingdom