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A Phase 2/3 Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of Atumelnant Treatment in Pediatric Participants with Congenital Adrenal Hyperplasia Including a Long-Term Extension

Status
Not yet recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-519578-38-00
Acronym
CRN04894-13
Enrollment
61
Registered
2025-12-09
Start date
Unknown
Completion date
Unknown
Last updated
2026-01-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Classic congenital adrenal hyperplasia

Brief summary

Part A: -Incidence of TEAEs including treatment emergent SAEs and any Aes leading to discontinuation. -Change from baseline in morning A4 at Week 8 Part B: -Percent change from baseline in GC daily dose at Week 28 while serum early morning A4≤ULN Part C: -Change from baseline in morning A4 over time

Detailed description

Part A: -Change from baseline in morning serum 17-OHP at Week 8 -Plasma and blood concentrations of atumelnant, Part B: -Change from baseline in morning A4 at Week 4 -Change from baseline in morning 17 OHP at Week 4 -Proportion of participants with physiologic GC dose while morning A4 , Part C: -Change from baseline in morning 17-OHP over time -Percent change from baseline in GC daily dose over time -Proportion of participants with physiologic GC dose while morning A4

Interventions

DRUGTablet
DRUGAtumelnant 40 mg tablet
DRUGAtumelnant 20 mg tablets

Sponsors

Crinetics Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to 17 Years

Design outcomes

Primary

MeasureTime frame
Part A: -Incidence of TEAEs including treatment emergent SAEs and any Aes leading to discontinuation. -Change from baseline in morning A4 at Week 8 Part B: -Percent change from baseline in GC daily dose at Week 28 while serum early morning A4≤ULN Part C: -Change from baseline in morning A4 over time

Secondary

MeasureTime frame
Part A: -Change from baseline in morning serum 17-OHP at Week 8 -Plasma and blood concentrations of atumelnant, Part B: -Change from baseline in morning A4 at Week 4 -Change from baseline in morning 17 OHP at Week 4 -Proportion of participants with physiologic GC dose while morning A4 , Part C: -Change from baseline in morning 17-OHP over time -Percent change from baseline in GC daily dose over time -Proportion of participants with physiologic GC dose while morning A4

Countries

Belgium, France, Germany, Italy, Netherlands, Poland

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026