About this trial

The purpose of this study is to evaluate the efficacy, safety, PK, and PD of atumelnant in adults with classic CAH due to 21-OHD.

Eligibility criteria

Qualifiers

Male or female, between ≥18 to <75 years of age at the time of signing the ICF.

Willing and able to understand and adhere to the study procedures as specified in the protocol and comply with the study treatment.

Have classic CAH due to 21-OHD confirmed by the Investigator.

A4 >ULN and treated with <11 mg/m2/day (physiologic) GC doses

Disqualifiers

Diagnosis of any form of CAH other than classic 21-OHD.

History of bilateral adrenalectomy, hypopituitarism, or other condition requiring chronic GC therapy.

Clinically significant medical condition or abnormal laboratory tests, as judged by the Investigator, other than CAH.

Concomitant mental condition rendering him/her unable to understand the nature, scope, and possible consequences of the study, and/or evidence of poor compliance with medical instructions.

Trial design

Treatments tested in this trial

  • Atumelnant
  • Placebo

Treatment groups

150 Participants
are divided into 2 treatment groups

Locations

45
Argentina
Crinetics Study Site1405, Buenos AiresBuenos Aires F.D., Argentina
Crinetics Study SiteC1012AAR, Buenos AiresBuenos Aires F.D., Argentina
Crinetics Study SiteC1199ABB, CABABuenos Aires F.D., Argentina
Crinetics Study SiteX5000JRD, CórdobaCórdoba Province, Argentina

Sponsors and collaborators

Crinetics Pharmaceuticals Inc.

Lead sponsor