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Completed Phase 1Phase 2 Interventional

A Study to Evaluate the Safety and PK of CRN04894 for the Treatment of Cushing's Syndrome

ClinicalTrials.gov ID: NCT05804669

Public ClinicalTrials.gov record NCT05804669. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 21, 2026, 12:29 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 1b/2a Open-label Multiple-ascending Dose Exploratory Study of CRN04894 in ACTH-dependent Cushing's Syndrome (Cushing's Disease or Ectopic ACTH Syndrome)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

A Phase 1b/2a, first-in-disease, open-label, multiple-ascending dose exploratory study to evaluate safety, tolerability, pharmacokinetics (PK), and pharmacodynamic biomarker responses associated with CRN04894 (an adrenocorticotropic hormone \[ACTH\] receptor antagonist) in participants with ACTH-dependent Cushing's syndrome (Cushing's disease or Ectopic ACTH Syndrome \[EAS\])

Study identification

NCT ID
NCT05804669
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
Crinetics Pharmaceuticals Inc.
Industry
Enrollment
19 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 12, 2023 (Actual)
Primary completion
Aug 25, 2026 (Actual)
Completion
Sep 8, 2026 (Actual)
Last update posted
Oct 14, 2026

2023 – 2026

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
National Institutes of Health (NIH) - National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Bethesda Maryland 20892 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05804669, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 14, 2026 · Synced Oct 21, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05804669 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →