CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 10 enrolled
Drug / intervention
Pozelimabdrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04209634
NCT04209634Phase 3Completed

An Open-Label Efficacy and Safety Study of Pozelimab in Patients With CD55-Deficient Protein-Losing Enteropathy (CHAPLE Disease)

Regeneron Pharmaceuticals·interventional·Posted Dec 24, 2019·Updated Aug 29, 2025

In Brief

A Phase 3 clinical trial evaluating Pozelimab for CD55-deficient Protein-losing Enteropathy and CHAPLE. Completed, enrolled 10 participants across 3 sites in 3 countries.

Detailed Summary

The primary objective of the study is to determine the effect of pozelimab on active CD55-deficient protein-losing enteropathy (PLE; CHAPLE). The secondary objectives of the study are: * To evaluate the safety and tolerability of pozelimab in patients with CD55-deficient PLE disease * To evaluate the effect of pozelimab on CD55-deficient PLE (both patients with active disease at baseline and those with inactive disease on eculizumab, switching to pozelimab) * To determine the effects of pozelimab on albumin and other serum proteins (total protein, immunoglobulins) * To determine the effects of pozelimab on ascites * To determine the effects of pozelimab on stool consistency * To determine the effect of pozelimab on health-related quality of life * To determine the effect of pozelimab on lab abnormalities observed in CD55-deficient PLE such as hypertriglyceridemia, thrombocytosis, and hypovitaminosis B12 * To describe the effects of pozelimab on the sparing of concomitant medications and reduction in hospitalization days * To determine the effects of pozelimab on growth * To characterize the concentration of pozelimab in patients with CD55-deficient PLE * To assess the incidence of treatment-emergent ADA for pozelimab in patients with CD55-deficient PLE disease

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesThailand, Turkey (Türkiye), United States
Collaborators--

Timeline

Phase 3CompletedFinished
2020202120222023202420252026
First PostedDec 24, 2019
Enrollment StartJan 27, 2020
Primary CompletionNov 9, 2021
Study CompletionMay 2, 2024
TodayJul 2, 2026
Enrollment to primary: 1.8 yearsPosted 6.5 years ago

Interventions

Pozelimabdrug

Single loading intravenous (IV) dose on day 1, then fixed doses sub-cutaneous (SC) (based on body weight) QW (±2 days) over the treatment period.