A study to Evaluate the Long-term Safety and Efficacy of Pegcetacoplan in Patients with C3 Glomerulopathy or Immune-Complex Membranoproliferative Glomerulonephritis (VALE)

Recruitment & Eligibility

Status: Recruiting

Sex: All

Target Recruitment: 125

Inclusion Criteria

Completed participation in Study APL2-C3G-310 through the Week 52 visit requirements., Experienced clinical benefit from pegcetacoplan while participating in the previous trial, in the opinion of the investigator., Must remain on a stable regimen for C3G or IC-MPGN treatment according to the requirements of Study APL2–C3G–310., Received vaccinations against S pneumoniae, N meningitidis (types A, C, W, Y, and B), and H influenzae (type B) according to the requirements of Study APL2-C3G-310 and agree to receive any additional vaccinations recommended according to Advisory Committee on Immunization Practices recommendations for adults or children with complement deficiencies and/or immunocompromising conditions or other similar local applicable guidelines., Female participants of childbearing potential, defined as any woman who has experienced menarche and who is not permanently sterile or postmenopausal, must have a negative urine pregnancy test at visit 1 and must agree to use protocol-defined methods of contraception for the duration of the study through at least 90 days after receiving the last dose of pegcetacoplan., Male participants must agree to use protocol-defined methods of contraception and agree to refrain from donating semen for the duration of the study through at least 90 days after receiving the last dose of pegcetacoplan., Participants above the legal age of consent, in accordance with local regulations, must be willing and able to provide informed consent. The legally authorized representative of participants under the legal age of consent must be willing and able to provide informed consent; where appropriate, participants under the legal age of consent must also give their assent to participation in the study., Willing and able to self-administer pegcetacoplan or have an identified caregiver who can perform the administration.

Exclusion Criteria

Female participants who are or are planning to become pregnant or who are currently breastfeeding and are unwilling to discontinue for the duration of the study and for at least 90 days after the final dose of study drug., Inability or unwillingness to cooperate with the requirements of the protocol., Any condition that, in the opinion of the investigator, creates an undue risk for the participant by participating in the study or is likely to confound interpretation of the study results., Evidence of ongoing drug or alcohol abuse or dependence, in the opinion of the investigator.

Study & Design

Study Type: Interventional clinical trial of medicinal product

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Main Objective: The primary objective of this study is to establish the long-term safety and efficacy of pegcetacoplan in participants with C3G or IC-MPGN.;Secondary Objective: An additional exploratory objective is to characterize the long-term effects of treatment with pegcetacoplan in participants with C3G or ICMPGN, including PK, pharmacodynamics (PD), and immunogenic response.;Primary end point(s): The log-transformed ratio of urine protein-to-creatinine ratio (uPCR) over time compared to pretreatment baseline.

Secondary Outcome Measures

Name	Time	Method

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