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Abelacimab

Phase 3

Atrial Fibrillation (AF) | Monoclonal antibody | Cardiovascular |Novartis AG|Last Updated: Jul 31, 2026

Target and mechanism

Molecular targetF11
Target classInhibitor
ModalityMonoclonal antibody

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment4,400

FDA Designations

No designations recorded

Clinical trial landscape

Abelacimab · 2 trials · 1 indication

Phase 3 2
NCT07739888Study to Evaluate the effIcacy and Safety of Abelacimab in High-risk Patients With Atrial Fibrillation Who Have Been Deemed Unsuitable for Oral AnticoagulationAtrial Fibrillation (AF)
NOT YET_RECRUITING2,500 Analytics
NCT05712200Study to evaLuate the effIcacy and Safety of abeLacimab in High-risk Patients With Atrial Fibrillation Who Have Been Deemed Unsuitable for Oral antiCoagulation (LILAC-TIMI 76)Atrial Fibrillation (AF)
RECRUITING1,900 Analytics
PHASE3NOT YET_RECRUITING
Study to Evaluate the effIcacy and Safety of Abelacimab in High-risk Patients With Atrial Fibrillation Who Have Been Deemed Unsuitable for Oral Anticoagulation
Atrial Fibrillation (AF)Unlock trial analytics
PHASE3RECRUITING
Study to evaLuate the effIcacy and Safety of abeLacimab in High-risk Patients With Atrial Fibrillation Who Have Been Deemed Unsuitable for Oral antiCoagulation (LILAC-TIMI 76)
Atrial Fibrillation (AF)Unlock trial analytics

Study Endpoints

Primary Endpoints

Time to first ISTH major Bleeding events
Up to 3 years

Time to first International Society on Thrombosis and Haemostasis (ISTH) major bleeding events

Time to first BARC type 3c/5 bleeding
Up to 3 years

Time to first Bleeding Academic Research Consortium (BARC) type 3c/5 bleeding

Number of participants with ISTH major or CRNM bleeding
Up to 3 years

Number of participants with International Society on Thrombosis and Haemostasis (ISTH) major or clinically relevant non-major (CRNM) bleeding

Number of participants with bleeding
Up to 3 years

All suspected bleeding events either reported by the patient or observed by the Investigator

Number of participants with TEAEs and TESAEs
Up to 3 years

Number of participants with treatment emergent AEs (TEAEs) and treatment emergent SAEs (TESAEs)

Number of participants with treatment discontinuations due to TEAEs
Up to 3 years

Number of participants with treatment discontinuations due to treatment emergent AEs (TEAEs)

Number of participants with device related AEs, SAEs, and device deficiencies
Up to 3 years
Efficacy: Time to first event of ischemic stroke or systemic embolism (SE)
Up to 30 months
Safety: Time to first occurrence of Bleeding Academic Research Consortium (BARC) type 3c/5 bleeding
Up to 30 months

Secondary Endpoints

Time to first event of ischemic stroke or SE
Up to 3 years
Efficacy: Time to first event of ischemic stroke, systemic embolism (SE), myocardial infarctions (MI), venous thromboembolism (VTE), or acute limb ischemia
Up to 30 months
Efficacy: Time to first event of ischemic stroke, systemic embolism (SE), or Bleeding Academic Research Consortium (BARC) type 3c/5 bleeding event
Up to 30 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Abelacimab (MAA868)EXPERIMENTALabelacimab 150 mg subcutaneous (SC)
PlaceboPLACEBO_COMPARATORPatients will be randomized in a 1:1 ratio to receive abelacimab 150 mg subcutaneous (SC) or matching placebo once monthly.

Interventions

NameTypeDescription
AbelacimabBIOLOGICALAbelacimab provided as liquid in vial (150 mg/mL)
PlaceboDRUGDosage Formulation: Liquid (in vial) Dose Strength: Placebo to Abelacimab
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Eligibility Criteria

Age Range65 Years to N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Patients are able to provide written informed consent to enter the extension part. * Patients must be on study treatment at the time of EoT visit in the core part. Exclusion Criteria: * Patients meeting any exclusion criteria in the core part. * Patients who have a history o...

Countries:United StatesArgentinaBrazilBulgariaCanadaChileChinaColombiaCroatiaCzechiaEstoniaFinlandGermanyGreeceHungaryIndiaIsraelItalyJapanLatviaMalaysiaMexicoPeruPhilippinesPolandRomaniaSerbiaSlovakiaSouth AfricaSouth KoreaSpainSwedenTurkey (Türkiye)United Kingdom
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Recent Changes (Last 90 Days)

LOWJul 31, 2026NCT07739888NEW_TRIAL: changed
LOWJul 31, 2026NCT07739888NEW_TRIAL: changed

Frequently asked questions about Abelacimab

What is Abelacimab used for in Atrial Fibrillation?

Abelacimab is an investigational monoclonal antibody being studied for the prevention of stroke and systemic embolism in patients with atrial fibrillation (AF) who are considered high-risk and unsuitable for oral anticoagulation. It is currently in Phase 3 clinical development and has not been approved by regulatory authorities.

What does Abelacimab target?

Abelacimab is a monoclonal antibody that targets factor XI, a protein involved in blood clotting. By inhibiting factor XI, it aims to reduce thrombus formation without increasing bleeding risk, which is particularly relevant for atrial fibrillation patients who cannot take standard oral anticoagulants.

Who makes Abelacimab?

Abelacimab is being developed by Novartis AG, a multinational pharmaceutical company listed on the New York Stock Exchange under the ticker symbol NVS. The company is conducting Phase 3 clinical trials to evaluate the drug's efficacy and safety in high-risk atrial fibrillation patients.

What phase is Abelacimab in?

Abelacimab is currently in Phase 3 clinical development. It is an investigational drug and has not been approved by the FDA or any other regulatory agency. Two Phase 3 trials are ongoing or planned to assess its safety and efficacy in patients with atrial fibrillation who are unsuitable for oral anticoagulation.

What clinical trials is Abelacimab in?

Abelacimab is being evaluated in two Phase 3 trials. The first, NCT05712200 (LILAC-TIMI 76), is recruiting 1,900 patients with atrial fibrillation who are unsuitable for oral anticoagulation. The second, NCT07739888, is planned to enroll 2,500 patients in a similar population. Both are randomized, double-blind, placebo-controlled studies.

Is Abelacimab the same as another drug?

Abelacimab is a distinct investigational monoclonal antibody and is not known by any other names. It is being developed specifically for atrial fibrillation patients at high risk of stroke who cannot use oral anticoagulants. No alternative names or brand names have been reported for this drug.