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A Study to Assess Drug Levels, Tolerability and Absolute Biological Availability of Single-dose of BMS-986446 in Healthy Participants

A Phase 1, Randomized, Open-label, Parallel, Single-dose Study to Assess the Pharmacokinetics, Tolerability, and Absolute Bioavailability of Subcutaneous Administration of BMS-986446, an Anti-MTBR Tau Monoclonal Antibody, in Healthy Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06955741
Enrollment
46
Registered
2025-05-02
Start date
2025-05-05
Completion date
2025-09-11
Last updated
2025-10-01

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

Conditions

Healthy Volunteer

Keywords

Bioavailability Study, Subcutaneous Injection, Anti-MTBR Tau Monoclonal Antibody

Brief summary

The purpose of this study is to assess drug levels, tolerability and absolute biological availability of single subcutaneous dose of BMS-986446 in healthy participants

Interventions

DRUGBMS-986446 IV

Specified dose on specified days was administered intravenously (IV).

DRUGBMS-986446 SC

Specified dose on specified days was administered subcutaneously (SC).

DRUGAcetaminophen

Specified dose on specified days

DRUGLoratadine

Specified dose on specified days

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Participants must have a Body Mass Index (BMI) of 18.0 to 30.0 kg/m2. * Participants must be healthy as determined by medical history, physical examination, neurological examination, vital signs, 12-lead ECG, C-SSRS, and clinical laboratory evaluations.

Exclusion criteria

* Participants must not have clinically significant gastrointestinal, renal, hepatic, broncho-pulmonary, neurological, psychiatric, cardiovascular, endocrinological, immune-mediated disorder, hematological, ongoing allergic disorder requiring treatment, metabolic disorder, cancer, or cirrhosis. * Participants must not have prior exposure to BMS-986446 (PRX005). * Other protocol-defined Inclusion/

Design outcomes

Primary

MeasureTime frame
Geometric Mean Ratio (GMR) of Maximum Observed Serum Concentration (Cmax) of BMS-986446 Administered IV versus SCUp to approximately Day 85
GMR of Area Under the Serum Concentration-time Curve From Time Zero to Time of Last Quantifiable Concentration (AUC(0-T)) of BMS-986446 Administered IV versus SCUp to approximately Day 85
GMR of Area Under the Serum Concentration-time Curve From Time Zero to 672 Hours (AUC(0-672)) of BMS-986446 Administered IV versus SCUp to approximately Day 85
Absolute Bioavailability (F) Estimated From GMR of AUC(INF) of BMS-986446 Administered as SC versus IV InfusionUp to approximately Day 85

Secondary

MeasureTime frameDescription
Number of Participants With Clinically Significant Changes in 12-lead Electrocardiogram (ECG)Up to approximately Day 85
Number of Participants With Clinically Significant Physical Examination (PE) AbnormalitiesUp to approximately Day 85
Number of Participants With Suicidality as Assessed by the Columbia-Suicide Severity Rating Scale (C-SSRS)Up to approximately Day 85
Number of Participants With Clinically Significant Laboratory Assessment AbnormalitiesUp to approximately Day 85
Cmax of BMS-986446Up to approximately Day 85
AUC(0-T) of BMS-986446Up to approximately Day 85
AUC(0-672) of BMS-986446Up to approximately Day 85
Area Under the Serum Concentration-time Curve From Time Zero Extrapolated to Infinite Time (AUC(INF)) of BMS-986446Up to approximately Day 85
Number of Participants With Adverse Events (AEs)Up to approximately Day 85
Apparent Terminal Serum Half-life (T-HALF) of BMS-986446Up to approximately Day 85
Total Body Clearance in IV Infusion (CLT) of BMS-986446Up to approximately Day 85
Apparent Total Body Clearance in SC Administration (CLT/F) of BMS-986446Up to approximately Day 85
Volume of Distribution of Terminal Phase in IV Infusion (Vz) of BMS-986446Up to approximately Day 85
Apparent Volume of Distribution of Terminal Phase in SC Administration (Vz/F) of BMS-986446Up to approximately Day 85
Number of Participants With Anti-drug Antibody DevelopmentUp to approximately Day 85
Local Tolerance Evaluation SC Administration of BMS-986646 Assessed by QuestionnaireUp to approximately Day 85Participant-reported response will be obtained using questionnaires that assess for pain (using a Numeric Rating Scale), itching, burning, pressure, and soreness/tenderness at the site injection.
Time of Maximum Observed Serum Concentration (Tmax) of BMS-986446Up to approximately Day 85
Number of Participants With Serious Adverse Events (SAEs)Up to approximately Day 85
Number of Participants With AEs Reported Related to BMS-986446Up to approximately Day 85
Number of Participants With Clinically Significant Vital Sign AbnormalitiesUp to approximately Day 85

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026