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Complement Inhibitor

Pegcetacoplan for Glomerulonephritis (VALIANT Trial)

Phase 3
Waitlist Available
Research Sponsored by Apellis Pharmaceuticals, Inc.
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
No more than 50% global glomerulosclerosis or interstitial fibrosis on the baseline biopsy for adult participants or adolescent participants providing a baseline biopsy.
A diagnosis of primary C3G or IC-MPGN (with or without previous renal transplant).
Must not have
Female participants who are pregnant or currently breastfeeding and unwilling to discontinue for the duration of the study and for at least 90 days after the final dose of study drug.
Previous exposure to pegcetacoplan.
Timeline
Screening 3 weeks
Treatment Varies
Follow Up up to 5 years
Awards & highlights
Pivotal Trial

Summary

This trial is testing an injectable medication called pegcetacoplan for patients with certain kidney diseases that cause high protein levels in their urine. These diseases are C3 glomerulopathy (C3G) and immune-complex membranoproliferative glomerulonephritis (IC-MPGN). Pegcetacoplan works by reducing the immune system's attack on the kidneys, which helps lower the protein levels in the urine.

Who is the study for?
Adults and certain adolescents with primary C3 Glomerulopathy or Immune-Complex Membranoproliferative Glomerulonephritis, who have significant protein in their urine, stable kidney disease treatment regimens, and specific signs of active renal disease. Excludes those previously treated with Pegcetacoplan, secondary conditions causing the disease, severe infections or immune deficiencies, weight over 100 kg, known allergies to study drug components.
What is being tested?
The trial is testing the effectiveness of Pegcetacoplan versus a placebo in reducing proteinuria (excess protein in urine) for patients with C3G or IC-MPGN. Participants will receive twice-weekly subcutaneous doses and be monitored for changes in their condition.
What are the potential side effects?
Potential side effects may include reactions at the injection site, increased risk of infections due to immune system suppression by Pegcetacoplan, allergic responses to medication ingredients, and possibly other unknown risks that are common when testing new treatments.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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My kidney biopsy shows less than 50% damage.
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I have been diagnosed with primary C3G or IC-MPGN.
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I have active kidney disease confirmed by tests or a biopsy.
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I have active kidney disease confirmed by specific tests.
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My kidney function is sufficient according to specific medical calculations.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
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I am not pregnant or breastfeeding, or I am willing to stop breastfeeding for the study and 90 days after.
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I have been treated with pegcetacoplan before.
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I have or had HIV, HBV, or HCV.
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My weight is over 100 kg.
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I have or might have hereditary fructose intolerance.
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I have had meningococcal disease before.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~up to 5 years
This trial's timeline: 3 weeks for screening, Varies for treatment, and up to 5 years for reporting.

Treatment Details

Side effects data

From 2020 Phase 3 trial • 80 Patients • NCT03500549
41%
Injection site erythema
15%
Injection site pruritus
13%
Headache
13%
Injection site swelling
13%
Diarrhoea
10%
Injection site reaction
9%
Nausea
8%
Pyrexia
8%
Injection site pain
6%
Fatigue
6%
Injection site induration
5%
Dyspnoea
5%
Nasopharyngitis
4%
Contusion
4%
Dizziness
4%
Chromaturia
4%
Vaccination site pain
4%
Pain in extremity
4%
Back pain
4%
Myalgia
3%
Vaccination complication
3%
Anxiety
3%
Thrombocytopenia
3%
Cough
3%
Abdominal pain
3%
Abdominal discomfort
3%
Arthralgia
3%
Injection site bruising
3%
Sepsis
1%
Sinusitis
1%
Haemolysis
1%
Vomiting
1%
Oral herpes
1%
Anaemia
1%
Asthenia
1%
Palpitations
1%
Abdominal distension
1%
Constipation
1%
Urinary tract infection
100%
80%
60%
40%
20%
0%
Study treatment Arm
Run-in Period: Pegcetacoplan + Eculizumab
Open-label Period: Pegcetacoplan
RCP: Eculizumab
RCP: Pegcetacoplan

Awards & Highlights

Pivotal Trial
The final step before approval, pivotal trials feature drugs that have already shown basic safety & efficacy.

Trial Design

2Treatment groups
Experimental Treatment
Placebo Group
Group I: Group 1: Pegcetacoplan administrationExperimental Treatment1 Intervention
Subcutaneous infusion of 20mL (1080 mg), twice weekly (for adults or adolescents \>50kg), and the three other weight-based doses either of 10mL (540mg), 12mL (648mg), or 15mL (810mg)
Group II: Group 2: Placebo administrationPlacebo Group1 Intervention
Subcutaneous infusion of either 10mL, 12mL, 15mL, or 20mL, twice weekly
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Pegcetacoplan
2015
Completed Phase 3
~400

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Common treatments for Glomerulonephritis, such as immunosuppressive therapies and complement inhibitors, aim to reduce inflammation and immune-mediated damage to the kidneys. Immunosuppressive drugs like cyclophosphamide and glucocorticoids suppress the immune system to prevent further kidney damage. Complement inhibitors, such as Pegcetacoplan, specifically target the complement system, which is part of the immune response that contributes to kidney inflammation and damage in diseases like C3G and IC-MPGN. By inhibiting the complement pathway, these treatments help reduce proteinuria and preserve kidney function, which is crucial for improving outcomes and quality of life for Glomerulonephritis patients.
Meta-Analysis of the Effectiveness and Safety of Glucocorticoid for the Treatment of IgA Kidney Disease.Efficacy and Safety of Agents in IgA Nephropathy: An Update Network Meta-Analysis.Antithrombotic drug therapy for IgA nephropathy: a meta analysis of randomized controlled trials.

Find a Location

Who is running the clinical trial?

Apellis Pharmaceuticals, Inc.Lead Sponsor
25 Previous Clinical Trials
4,190 Total Patients Enrolled
4 Trials studying Glomerulonephritis
134 Patients Enrolled for Glomerulonephritis

Media Library

Glomerulonephritis Research Study Groups: Group 1: Pegcetacoplan administration, Group 2: Placebo administration
~22 spots leftby Dec 2025