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Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Crinecerfont in Participants With Classic Congenital Adrenal Hyperplasia (CAH) Who Are Less Than 4 Years Old

A Phase 2, Open-Label Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Crinecerfont in Pediatric Participants 3 Months to <4 Years of Age With Classic Congenital Adrenal Hyperplasia

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07536269
Enrollment
20
Registered
2026-04-17
Start date
2026-07-01
Completion date
2028-03-01
Last updated
2026-09-16

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

Conditions

Congenital Adrenal Hyperplasia

Keywords

Congenital Adrenal Hyperplasia, CAH, Crinecerfont, Pediatric

Brief summary

The main objective of this study is to assess the safety and tolerability of crinecerfont in pediatric participants 3 months to \<4 years of age with CAH.

Interventions

Oral solution

Sponsors

Neurocrine Switzerland GmbH
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
3 Months to 47 Months
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Have a medically confirmed diagnosis of classic CAH (salt wasting or simple virilizing) due to 21-hydroxylase deficiency (21-OHD) * Have received at least 3 months of hydrocortisone treatment before Day 1, with a stable dose for at least 4 weeks before screening. * Have a body weight of at least 4.5 kilograms (kg) at screening. * Have a newborn screen that is otherwise normal except for elevated 17-OHP or any other abnormality on newborn screen that was cleared upon evaluation by a pediatric specialist. Key

Exclusion criteria

* Have a known or suspected diagnosis of any of the other forms of classic CAH. * Have any condition besides CAH that requires chronic daily therapy with orally administered steroids. * Have any other clinically significant medical condition or chronic disease. Note: Other protocol-defined inclusion and

Design outcomes

Primary

MeasureTime frame
Number of Participants With Treatment-emergent Adverse Events (TEAE)Day 1 up to 28 weeks

Countries

United States

Contacts

CONTACTNeurocrine Medical Information Call Center
medinfo@neurocrine.com1-877-641-3461
STUDY_DIRECTORClinical Development Lead

Neurocrine Biosciences

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 17, 2026