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NBIP-01435

Phase 2

Congenital Adrenal Hyperplasia | Small molecule | Endocrine |Neurocrine Biosciences, Inc.|Last Updated: Sep 30, 2026

Development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Sep 2026

Target and mechanism

Molecular targetCRF1
Target classReceptor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment36

FDA Designations

No designations recorded

Clinical trial landscape

NBIP-01435 · 1 trial · 1 indication

Phase 2 1
NCT07850739Efficacy, Safety, Tolerability, and Pharmacokinetics of NBIP-01435 in Adult Participants With Classic Congenital Adrenal Hyperplasia (CAH)Congenital Adrenal Hyperplasia
NOT YET_RECRUITING36 Analytics
PHASE2NOT YET_RECRUITING
Efficacy, Safety, Tolerability, and Pharmacokinetics of NBIP-01435 in Adult Participants With Classic Congenital Adrenal Hyperplasia (CAH)
Congenital Adrenal HyperplasiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in A4 Level at Week 8
Baseline, Week 8
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part 1: NBIP-01435EXPERIMENTALParticipants will receive NBIP-01435 administered once a week (QW) subcutaneously (SC) for a minimum of 8 weeks.
Part 2: NBIP-01435EXPERIMENTALParticipants will receive NBIP-01435 administered SC for a minimum of 8 weeks.

Interventions

NameTypeDescription
NBIP-01435DRUGNBIP-01435 will be administered per schedule specified in the arm description.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo

Key Inclusion Criteria: * Medically confirmed diagnosis of classic 21-hydroxylase deficiency (21-OHD) CAH, based on standard, medically accepted criteria. * Stable glucocorticoid (GC) dose regimen for classic CAH for a minimum of 30 days before screening. * If treated with fludrocortisone, the dose...

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Recent Changes (Last 90 Days)

LOWSep 30, 2026NCT07850739NEW_TRIAL: changed
LOWSep 30, 2026NCT07850739NEW_TRIAL: changed

Frequently asked questions about NBIP-01435

What is NBIP-01435 used for?

NBIP-01435 is an investigational small molecule being developed for the treatment of classic congenital adrenal hyperplasia (CAH) in adults. It is not yet approved for any indication and remains in clinical development. Neurocrine Biosciences is evaluating it for its potential to address the underlying hormonal dysregulation associated with CAH.

What does NBIP-01435 target?

NBIP-01435 targets the CRF1 receptor, a class of receptor involved in the regulation of the hypothalamic-pituitary-adrenal axis. By acting on CRF1, the drug is designed to modulate the hormonal pathways that drive excess androgen production in congenital adrenal hyperplasia. It is a small molecule therapeutic.

Who is developing NBIP-01435?

NBIP-01435 is being developed by Neurocrine Biosciences, Inc., which trades on the Nasdaq under the ticker symbol NBIX. The company is the sole sponsor of the clinical program for this asset in congenital adrenal hyperplasia.

What phase is NBIP-01435 in?

NBIP-01435 is in Phase 2 clinical development. The program has one active trial that has not yet begun recruiting participants. No Phase 3 trials or regulatory approvals have been announced for this drug.

What clinical trials is NBIP-01435 in?

NBIP-01435 is being studied in a single Phase 2 trial, NCT07850739, titled "Efficacy, Safety, Tolerability, and Pharmacokinetics of NBIP-01435 in Adult Participants With Classic Congenital Adrenal Hyperplasia (CAH)." The trial is not yet recruiting and is expected to enroll 36 adults. It is a randomized, controlled study.