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TargetTau-1

Active not recruitingPhase 2

Study to Evaluate the Efficacy, Safety, and Tolerability of an Anti-MTBR Tau Monoclonal Antibody (BMS-986446) in Participants With Early Alzheimer's Disease

A Randomized, Double-blind, Placebo-controlled, Global Proof-of-concept Study to Evaluate the Efficacy, Safety, and Tolerability of BMS-986446, an Anti-MTBR Tau Monoclonal Antibody, in Participants With Early Alzheimer's Disease (TargetTau-1)

Asset

BMS-986446

Listed sites

176

Recruiting sites

-

Enrollment

310

estimated

Study population

Alzheimer’s disease

Key I/E criteria

mild AD dementiaCDR global 0.5-1MMSE 20-28

Primary endpoint

Brain tau deposition

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

Secondary ID2023-504840-32EU CTR
Org study IDCN008-0003
NCT IDNCT06268886
RegistryU1111-1290-3539WHO

Timeline

Milestones

Study first posted2024-02-20actual
Study start2024-03-20actual
Last update posted2025-07-24actual
Primary completion2027-03-18estimated
Study completion2027-03-18estimated

Assets

Drug assets

Study populations

Who this study enrolls

Alzheimer’s disease

Eligibility

Who can enroll

Minimum age50 Years
Maximum age80 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

Mild cognitive impairment (MCI) due to Alzheimer's disease (AD) or mild AD dementia consistent with the National Institute on Aging and the Alzheimer's Association (NIA-AA) core clinical criteria.
Global Clinical Dementia Rating (CDR) score of 0.5 to 1.0 and a CDR-Memory Box score of 0.5 and greater at screening and Baseline.
Evidence of AD pathology.
Objective impairment in episodic memory as indicated by at least 1 standard deviation below age-adjusted mean in the Wechsler Memory Scale IV-Logical Memory Subtest II (WMS-IV LM II).
Mini Mental Status Examination (MMSE) score ≥ 20 to 28 (inclusive)

Exclusion criteria

Any evidence of a condition that may affect cognition other than AD.
Contraindications to PET imaging.
Inability to tolerate or contraindication to magnetic resonance imaging.
Any serious medical condition that could, in the opinion of the investigator, affect the participant's safety or interfere with study assessments.
Geriatric Depression Scale (GDS) score greater than or equal to 8 at screening.
Other protocol-defined Inclusion/Exclusion criteria apply.

Endpoints (6)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Other (unclassified)
3
Global cognition
2
Function / daily living
1

Global cognition

2 endpoints
Secondary/protocol endpoint

Change from baseline in Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) score

Time frame:At week 76

Clinical Dementia Rating-Sum of Boxes (CDR-SB)

change from baseline, improvement

Secondary/protocol endpoint

Change from baseline in Mini Mental State Examination (MMSE) score

Time frame:At week 76

Mini-Mental State Examination (MMSE)

change from baseline, improvement

Function / daily living

1 endpoint
Secondary/protocol endpoint

Change from baseline in Alzheimer's Disease Cooperative Study-instrumental Activities of Daily Living scale (ADCS-iADL) score

Time frame:At week 76

change from baseline, improvement

Other (unclassified)

3 endpoints
Primary/protocol endpoint/low confidence

Change from baseline in brain tau deposition as measured by tau positron emission tomography (PET)

Time frame:At week 76

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change from baseline in integrated Alzheimer's Disease Rating Scale (iADRS) score

Time frame:At week 76

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change from baseline in Alzheimer's Disease Assessment Scale-Cognitive subscale (ADASCog14) score

Time frame:At week 76

ADAS-Cog

change from baseline, improvement

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 21, 2026
Endpoint classificationDelfa ADRD endpoint taxonomy
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 21, 2026 snapshot.