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Bretisilocin

Phase 1

Healthy Volunteer | Small molecule | Other |AbbVie Inc.|Last Updated: Aug 31, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment26

FDA Designations

No designations recorded

Clinical trial landscape

Bretisilocin · 1 trial · 1 indication

Phase 1 1
NCT07604558A Study to Assess the Adverse Events and How Bretisilocin Intramuscular Injection Moves Through the Body of Healthy Adult ParticipantsHealthy Volunteer
ACTIVE NOT_RECRUITING26 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study to Assess the Adverse Events and How Bretisilocin Intramuscular Injection Moves Through the Body of Healthy Adult Participants
Healthy VolunteerUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Experiencing Adverse Events
Up to approximately 32 days

An AE is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment.

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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Group 1-Bretisilocin-JapaneseEXPERIMENTALParticipants will receive bretisilocin intramuscular (IM) injection on day 1.
Group 1-Bretisilocin-Han ChineseEXPERIMENTALParticipants will receive bretisilocin intramuscular (IM) injection on day 1.
Group 1-Bretisilocin-Non-AsianEXPERIMENTALParticipants will receive bretisilocin intramuscular (IM) injection on day 1.

Interventions

NameTypeDescription
BretisilocinDRUGIntramuscular Injection
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Group 1: Healthy adult Japanese male or female; • Japanese participants must be first-generation Japanese of full Japanese parentage residing outside of Japan for less than 5 years. * Group 2: Healthy adult Han Chinese male or female • Han Chinese participants must be fi...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMAug 31, 2026NCT07604558Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMAug 31, 2026NCT07604558Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWJun 24, 2026NCT07604558Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 24, 2026NCT07604558Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about Bretisilocin

What is Bretisilocin used for?

Bretisilocin is an investigational small molecule being studied in healthy volunteers. It is currently in Phase 1 clinical development, with a single active trial assessing its safety and how it moves through the body. It is not approved for any condition and remains in early-stage clinical testing.

Who makes Bretisilocin?

Bretisilocin is being developed by AbbVie Inc., a biopharmaceutical company traded on the New York Stock Exchange under the ticker ABBV. The company is conducting a Phase 1 study of this investigational small molecule in healthy adult participants in the United States.

What phase is Bretisilocin in?

Bretisilocin is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. The ongoing Phase 1 trial is active but not recruiting participants, and it is designed to evaluate the drug's adverse events and pharmacokinetics in healthy adults.

What clinical trials is Bretisilocin in?

Bretisilocin is being evaluated in one active Phase 1 clinical trial, identified as NCT07604558. This study assesses adverse events and how an intramuscular injection of Bretisilocin moves through the body of healthy adult participants. The trial is enrolling 26 participants in the United States and is currently active but not recruiting.

How is Bretisilocin administered in clinical trials?

In the ongoing Phase 1 clinical trial NCT07604558, Bretisilocin is administered as an intramuscular injection. The study is designed to evaluate the adverse events and the movement of the drug through the body of healthy adult participants aged 18 years and older.