Clinical trial • Phase III • Endocrinology|Rare Disease

CRINECERFONT for Classic congenital adrenal hyperplasia (21-hydroxylase deficiency)

Phase III trial of CRINECERFONT for Classic congenital adrenal hyperplasia (21-hydroxylase deficiency).

Overview

Trial Therapeutic Area
Endocrinology|Rare Disease
Trial Disease
Classic congenital adrenal hyperplasia (21-hydroxylase deficiency)
Trial Stage
Phase III
Drug Modality
Small molecule
Paediatric Trial
Yes
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
15-04-2024
First CTIS Authorization Date
24-05-2024

Trial design

Randomised, open-label, placebo (crinecerfont placebo for oral solution and crinecerfont placebo for oral capsules). dose/schedule not specified in available data.-controlled Phase III trial across 14 sites in Belgium, France, Greece and others.

Randomised
Yes
Open Label
Yes
Comparator
Placebo (Crinecerfont placebo for oral solution and Crinecerfont placebo for oral Capsules). Dose/schedule not specified in available data.
Target Sample Size
58

Eligibility

Recruits 58 paediatric patients.

Pregnancy Exclusion
Females who are pregnant or lactating.
Vulnerable Population
Pediatric population selected (isVulnerablePopulationSelected = true). Informed consent and assent materials are provided by age group: parental/legal guardian informed consent forms and subject information/ICF documents for adults; assent and ICF/assent documents are available for multiple pediatric age groups (examples in documents: assent to participate 3-5 yr, 6-10 yr, 11-17 yr; Parental/Legal representative ICFs). Materials are provided in country/language-specific versions as indicated by the submitted documents (examples include French, Dutch (NL), German, Spanish, Italian, Greek, Polish).

Inclusion criteria

  • {"criterion_text":"-Be willing and able to adhere to the study procedures, including all requirements at the study center and return for the follow-up visit."}
  • {"criterion_text":"-Be a female or male 2 to 17 years of age with a body weight of at least 10 kg."}
  • {"criterion_text":"-Have a medically confirmed diagnosis of classic CAH due to 21- hydroxylase deficiency."}
  • {"criterion_text":"-Be on a stable regimen of glucocorticoid treatment for CAH."}
  • {"criterion_text":"-Have elevated adrenal androgens."}
  • {"criterion_text":"-If treated with fludrocortisone, dose should be stable for at least 1 month prior to screening. Regardless of fludrocortisone treatment, upright plasma renin activity (PRA) (in the absence of medications that confound interpretation of PRA) during screening should be <3× ULN and >lower limit of normal (LLN) on the subject's usual sodium intake (if PRA >2 × ULN and <3 × ULN, subjects must have normal age-specific systolic blood pressure and heart rate and serum potassium "}

Exclusion criteria

  • {"criterion_text":"-Have a diagnosis of any of the other forms of classic CAH."}
  • {"criterion_text":"-Have a history of bilateral adrenalectomy, hypopituitarism, or other condition requiring chronic daily therapy with oral glucocorticoids."}
  • {"criterion_text":"-Have a clinically significant unstable medical condition or chronic disease other than CAH"}
  • {"criterion_text":"-Have a history of malignancy, unless successfully treated with curative intent and considered to be cured."}
  • {"criterion_text":"-Have a known history of clinically significant arrhythmia or abnormalities on screening ECG."}
  • {"criterion_text":"-Have a known hypersensitivity or allergy to any corticotropin-releasing hormone (CRH) receptor antagonist or any component of the study drug."}
  • {"criterion_text":"-Females who are pregnant or lactating."}

Endpoints

Primary endpoints

  • {"endpoint_text":"-Change from baseline in serum androstenedione at Week 4.","definition_or_measurement_approach":"Change from baseline in serum androstenedione measured at Week 4 (change from baseline comparison)."}

Secondary endpoints

  • {"endpoint_text":"-Change from baseline in serum 17-hydroxyprogesterone at Week 4","definition_or_measurement_approach":"Change from baseline in serum 17-hydroxyprogesterone measured at Week 4 (change from baseline comparison)."}
  • {"endpoint_text":"-Percent change from baseline in glucocorticoid dose at Week 28","definition_or_measurement_approach":"Percent change from baseline in daily glucocorticoid dose measured at Week 28."}

Recruitment

Planned Sample Size
58
Recruitment Window Months
67
Consent Approach
Parental/legal guardian informed consent is required for pediatric participants; age-appropriate assent forms are provided for younger subjects (assent documents listed for 3-5 yr, 6-10 yr, 11-17 yr in submitted materials). Subject information sheets and ICFs are provided in country/language-specific versions (documents submitted in French, Dutch, German, Spanish, Italian, Greek, Polish as indicated).

Geography

Total Number Of Sites
14
Total Number Of Participants
35

Belgium

Latest Decision Or Authorization Date
10-10-2025
Number Of Sites
1
Number Of Participants
3

Sites

Site Name
Universitair Ziekenhuis Gent
Department Name
SAFE-PEDRUG
Contact Person Name
Martine Cools
Contact Person Email
martine.cools@urgent.be

France

Latest Decision Or Authorization Date
23-10-2025
Number Of Sites
4
Number Of Participants
15

Sites

Site Name
Hopital Necker Enfants Malades
Department Name
Service d'Endocrinologie Gynécologie et Diabétologie Pédiatriques
Contact Person Name
Dinane SAMARA DIAB BOUSTANI
Contact Person Email
dinane.samara-boustani@aphp.fr
Site Name
Robert Debre University Hospital
Department Name
Endocrinologie et Diabétologie Pédiatrique
Contact Person Name
Laetitia MARTINERIE
Contact Person Email
laetitia.martinerie@aphp.fr
Site Name
Assistance Publique Hopitaux De Paris
Department Name
Endocrinologie et diabète de l'enfant
Contact Person Name
Claire Bouvattier
Contact Person Email
claire.bouvattier@aphp.fr
Site Name
Centre Hospitalier Regional D'Angers
Department Name
Endocrinologie et Diabétologie Pédiatrique
Contact Person Name
Régis COUTANT
Contact Person Email
ReCoutant@chu-angers.f

Greece

Latest Decision Or Authorization Date
13-11-2025
Number Of Sites
1
Number Of Participants
1

Sites

Site Name
Nosokomeio Paidon I Agia Sofia
Department Name
Endocrinology, Metabolism and Diabetes Unit, First Pediatric Clinic
Contact Person Name
Evangelia Charmandari

Italy

Latest Decision Or Authorization Date
14-10-2025
Number Of Sites
2
Number Of Participants
2

Sites

Site Name
Azienda Ospedaliera Universitaria Federico II Di Napoli
Department Name
Department of Pediatric Endocrinology
Contact Person Name
Salerno Mariacarolina
Contact Person Email
salerno@unina.it
Site Name
Ospedale San Raffaele S.r.l.
Department Name
Department of Pediatric Endocrinology
Contact Person Name
Gianni Russo
Contact Person Email
russo.gianni26@gmail.com

Spain

Latest Decision Or Authorization Date
20-10-2025
Number Of Sites
2
Number Of Participants
6

Sites

Site Name
University Hospital Virgen Del Rocio S.L.
Department Name
Servicio de Pediatría
Contact Person Name
Ana Lucia Gomez
Site Name
Hospital Universitari Vall D Hebron
Department Name
Servicio de endocrinología pediátrica
Contact Person Name
Maria Clemente Leon
Contact Person Email
mclement@vhebron.net

Poland

Latest Decision Or Authorization Date
15-10-2025
Number Of Sites
2
Number Of Participants
7

Sites

Site Name
Uniwersyteckie Centrum Kliniczne
Department Name
Department of Pediatrics, Diabetology and Endocrinology
Contact Person Name
Dorota Biskholz-Walerzak
Contact Person Email
debirkhol@wp.pl
Site Name
Kliniczny Szpital Wojewodzki Nr 2 Im. Sw. Jadwigi Krolowej W Rzeszowie
Department Name
Endocrinology and Child Diabetology
Contact Person Name
Artur Mazur
Contact Person Email
drmazur@poczta.onet.pl

Germany

Latest Decision Or Authorization Date
14-01-2026
Number Of Sites
2
Number Of Participants
1

Sites

Site Name
Universitaetsklinikum Heidelberg AöR
Department Name
Division of Paediatric Endocrinology & Diabetes
Contact Person Name
Daniela Choukair
Site Name
Otto Von Guericke Universitaet Magdeburg
Department Name
Endokrinologie und Diabetologie
Contact Person Name
Katja Palm
Contact Person Email
katja.palm@med.ovgu.de

Sponsor

Primary sponsor

Full Name
Neurocrine Biosciences Inc.
Organisation Type
Pharmaceutical company
Country Of Registered Address
United States

Contract research organisations

Name
Worldwide Clinical Trials Holdings Inc.
Responsibilities
Negotiation of site clinical trial agreements, site activation, Trial Master File, Clinical Assessment Technologies, Risk Based Quality Management (RBQM), Safety Management Maintenance, Set up and process grant payments
Name
Syneos Health Inc.
Responsibilities
Specialty laboratory - PK Analysis

Third parties

  • {"country":"United States","full_name":"Quest Diagnostics Nichols Institute Inc.","duties_or_roles":"Analysis of 17-OHP, PRA, ASD, CAH Common Mutations, LH (Pediatric), Total testosterone","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United Kingdom","full_name":"Biotec Services International Limited","duties_or_roles":"Vendor for IP distribution and labeling - United Kingdom and Canada","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Worldwide Clinical Trials Holdings Inc.","duties_or_roles":"Negotiation of site clinical trial agreements, site activation, Trial Master File, Clinical Assessment Technologies, Risk Based Quality Management (RBQM), Safety Management Maintenance, Set up and process grant payments","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Syneos Health Inc.","duties_or_roles":"Specialty laboratory - PK Analysis","organisation_type":"Pharmaceutical company"}
  • {"country":"Belgium","full_name":"MEDPACE LABORATORIES","duties_or_roles":"Clinical hematology, chemistry Biomarker analyses","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Zrt Laboratory LLC","duties_or_roles":"Salivary sample analysis","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"WCG Clinical Inc.","duties_or_roles":"Central Institutional Review Board (IRB)","organisation_type":"Pharmaceutical company"}
  • {"country":"Ireland","full_name":"Millmount Healthcare Limited","duties_or_roles":"Vendor for IP distribution and labeling - EU countries Belgium, Germany, Spain, France, Italy, Poland, Greece","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"MARKEN Germany GmbH","duties_or_roles":"Home health services, Direct-to-Patient (DTP) IP shipments","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Bioclinica Inc.","duties_or_roles":"Vendor for medical image review and analysis: X-ray, ultrasound, Blood pressure equipment provider","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"Hungary","full_name":"Accelsiors Kft.","duties_or_roles":"Negotiation of site clinical trial agreements","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Signant Health Global LLC","duties_or_roles":"Electronic patient-reported outcome (e-PRO)","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Medpace Reference Laboratories LLC","duties_or_roles":"Processing and analysis of blood and urine samples, Clinical hematology, chemistry Biomarker analyses","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"United States","full_name":"Cytel Inc.","duties_or_roles":"Independent Statistical Center supporting Data Monitoring Committee (DMC)","organisation_type":"Non-Pharmaceutical company"}
  • {"country":"United States","full_name":"Andersonbrecon Inc.","duties_or_roles":"Vendor for IP distribution and labeling - USA","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Medidata Solutions Inc.","duties_or_roles":"electronic patient-reported outcome (e-PRO)","organisation_type":"Non-Pharmaceutical company"}

Investigational products

Investigational Product Name
NBI-74788 (CAPSULE)
Active Substance
CRINECERFONT
Modality
Small molecule
Routes Of Administration
ORAL USE
Route
ORAL USE
Authorisation Status
Authorized (PRD7876236)
Orphan Designation
Yes
Investigational Product Name
NBI-74788 (ORAL SOLUTION)
Active Substance
CRINECERFONT
Modality
Small molecule
Routes Of Administration
ORAL USE
Route
ORAL USE
Authorisation Status
Authorized (PRD7537534)
Orphan Designation
Yes
Investigational Product Name
Crinecerfont placebo for oral solution
Modality
Other
Investigational Product Name
Crinecerfont placebo for oral Capsules
Modality
Other

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