Skip to content

A Positron Emission Tomography Study to Assess the Occupancy of M4 Muscarinic Acetylcholine Receptors by BMS-986521 in Healthy Adult Participants

A Phase 1, Open-label, Positron Emission Tomography (PET) Imaging Study to Evaluate M4 Muscarinic Acetylcholine Receptor Occupancy in the Central Nervous System Using [11C]MK-6884 PET Tracer Before and After Oral Administration of Multiple Doses of BMS-986521 in Healthy Adult Participants

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07655518
Enrollment
12
Registered
2026-06-18
Start date
2026-06-25
Completion date
2026-12-27
Last updated
2026-07-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Keywords

Healthy volunteers, BMS-986521, Positron Emission Tomography, PET tracer

Brief summary

The purpose of this study is to Assess the Occupancy of M4 Muscarinic Acetylcholine Receptors by BMS-986521 in Healthy Adult Participants

Interventions

DRUGBMS-986521

Specified dose on specified days

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Participants must be healthy male and female (as assigned at birth) who are individuals not of childbearing potential (INOCBP) without clinically significant deviation from normal in medical history, PE, 12-lead ECG, and clinical laboratory assessments. * Participants must have a BMI of 18 to 30 kg/m\^2, inclusive, and total body weight ≥ 50 kg.

Exclusion criteria

* Participants must not have presence or history of any clinically relevant abnormality, condition, or disease-CNS, cardiovascular, renal, hepatic, hematologic, GI, endocrine, pulmonary, psychiatric, neurologic (eg, seizure disorder), or immunologic. * Participants must not have history of rhabdomyolysis. * Participants must not have current or recent (within 3 months of study intervention administration) clinically significant GI disease. * Other protocol defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Percentage occupancy of M4 receptor in the brainUp to approximately 28 hours after last doseBased on PET scans

Secondary

MeasureTime frameDescription
Number of participants with treatment-emergent AEs (TEAEs)Up to Day 38
Number of participants with treatment-emergent serious AEs (SAEs)Up to Day 38
Number of participants with treatment-emergent suicidal ideation and behaviorUp to Day 11Assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS)
Maximum Concentration (Cmax) of BMS-986521 in PlasmaUp to Day 11
Area Under the Concentration-Time Curve from Time Zero to 24 Hours (AUC(0-24)) of BMS-986521 in PlasmaUp to Day 11
Time to Cmax (Tmax) of BMS-986521 in PlasmaUp to Day 11
Effective half-life (T-HALFeff) of BMS-986521 in PlasmaUp to Day 11
Apparent Clearance of BMS-986521 from Plasma after Dosing (CLT/F)Up to Day 11
Apparent Volume of Distribution in Plasma after Dosing (Vz/F) of BMS-986521Up to Day 11
Maximal effect (Emax)Up to approximately 28 hours after last dosePlasma concentrations of BMS-986521 versus M4 receptor occupancy
Half maximal effective concentration (EC50)Up to approximately 28 hours after last dosePlasma concentrations of BMS-986521 versus M4 receptor occupancy

Countries

Belgium

Contacts

CONTACTBMS Clinical Trials Contact Center www.BMSClinicalTrials.com
Clinical.Trials@bms.com855-907-3286
CONTACTFirst line of the email MUST contain NCT # and Site #.
STUDY_DIRECTORBristol-Myers Squibb

Bristol-Myers Squibb

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 11, 2026