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Buprenorphine

Phase 2

Substance Use Disorder | Small molecule | Psychiatry |National Healthcare Corp.|Last Updated: Dec 9, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment344

FDA Designations

No designations recorded

Clinical trial landscape

Buprenorphine · 1 trial · 3 indications

Phase 2 1
NCT04345718EXHIT ENTRE Comparative Effectiveness TrialSubstance Use Disorder
COMPLETED344 Analytics
PHASE2COMPLETED
EXHIT ENTRE Comparative Effectiveness Trial
Substance Use DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

The proportion of participants engaged in OUD care on the 34th day following hospital discharge.
34 days post discharge from hospital

Engagement in OUD is defined as coverage with a legitimately prescribed MOUD on that 34th day regardless of the source of prescribed MOUD coverage (e.g., formalized treatment program, primary care, jail, etc.).

Secondary Endpoints

Proportion of participants that experience Adverse Events (AE)
34 days
Proportion of participants engaged with MOUD
Days 90 and 180 post hospital discharge
Proportion of participants with positive urine drug test
Days 34, 90 and 180 post hospital discharge
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
InterventionalEXPERIMENTALSingle subcutaneous injection of a 28-day formulation of extended-release buprenorphine within 72 hours of anticipated hospital discharge.
Treatment as UsualACTIVE_COMPARATORCommunity standard of care that includes initiation of either methadone, sublingual (SL) buprenorphine, or naltrexone prior to hospital discharge.

Interventions

NameTypeDescription
Extended Release BuprenorphineDRUGXR-BUP administration prior to hospital discharge will increase engagement in OUD care on the 34th day following hospital discharge more than is currently afforded by ACS TAU approaches (e.g., methadone, SL-BUP, and naltrexone).
Treatment as UsualDRUGCommunity standard medication for opioid use disorder (e.g., methadone, sublingual buprenorphine, naltrexone) initiated prior to hospital discharge.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites6

Inclusion Criteria: 1. Hospitalized. 2. At least 18 years of age. 3. Meet Diagnostic and Statistical Manual (DSM-5) criteria for moderate or severe OUD. 4. Willing to initiate MOUD, including buprenorphine. 5. Able to speak English sufficiently to understand the study procedures and provide written...

Countries:United States
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Competitive Landscape -Substance Use Disorders 19 trials (matched to "Substance Use Disorder")

Frequently asked questions about Buprenorphine

What is Buprenorphine used for?

Buprenorphine is used for Substance Use Disorder, specifically including moderate and severe Opioid Use Disorder. It is being developed as a small molecule treatment in the psychiatry therapeutic area. The drug is currently in Phase 2 clinical development and is considered investigational.

Who makes Buprenorphine?

Buprenorphine is being developed by National Healthcare Corp., which trades under the ticker NHC. The company is conducting clinical trials for the drug in the United States for the treatment of Substance Use Disorder.

What phase is Buprenorphine in?

Buprenorphine is in Phase 2 clinical development. It is an investigational drug and has not been approved by regulatory authorities. One Phase 2 clinical trial has been completed for the treatment of Substance Use Disorder.

What clinical trials is Buprenorphine in?

Buprenorphine has one completed clinical trial, NCT04345718, titled EXHIT ENTRE Comparative Effectiveness Trial. This Phase 2 study enrolled 344 participants in the United States with moderate or severe Opioid Use Disorder. The trial was active-controlled and randomized, though not double-blinded.

How does Buprenorphine work?

Buprenorphine is a small molecule developed for Substance Use Disorder. As a small molecule, it is designed to interact with biological targets to produce its therapeutic effect. The specific molecular target has not been disclosed in the available information.