CI

At a glance

ClinicalIndex Comparison Record
Phase 3Active· 182 enrolled
Drug / intervention
Crinecerfont +1 moredrug
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/NCT04490915
NCT04490915Phase 3Active

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Efficacy of Crinecerfont (NBI-74788) in Adult Subjects With Classic Congenital Adrenal Hyperplasia, Followed by Open-Label Treatment

Neurocrine Biosciences·interventional·Posted Jul 29, 2020·Updated May 11, 2026

In Brief

A Phase 3 clinical trial evaluating Crinecerfont and Placebo for Congenital Adrenal Hyperplasia. Active but no longer recruiting, targeting 182 participants across 70 sites in 18 countries.

Detailed Summary

This is a Phase 3 study to evaluate the efficacy, safety, and tolerability of crinecerfont versus placebo administered for 24 weeks in approximately 165 adult participants with classic CAH due to 21-hydroxylase deficiency. The study consists of a 24-week randomized, double-blind, placebo-controlled period, followed by 1 year of active treatment with crinecerfont. Subsequently, participants may elect to participate in the open-label extension (OLE) period. The duration of participation in the study is approximately 20 months for the core study and will be a variable amount of time per participant for the OLE (estimated to be approximately 3 years).

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesAustria, Belgium, Bulgaria, Canada, Czechia, France, Germany, Greece, Israel, Italy, Netherlands, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom, United States
Collaborators--

Timeline

Phase 3Active
2021202220232024202520262027
First PostedJul 29, 2020
Enrollment StartDec 16, 2020
Primary CompletionJul 19, 2023
Study CompletionAug 1, 2027
TodayJul 2, 2026
Enrollment to primary: 2.6 yearsPosted 5.9 years ago

Interventions

Crinecerfontdrug

CRF type 1 receptor antagonist

Placebodrug

Non-active dosage form