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Abelacimab

Phase 3

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

Abelacimab development status

Highest phase Phase 3
Registered trials 4 across 2 sponsors since Jan 2018

Abelacimab target and mechanism

Molecular targetF11
Target classInhibitor
ModalityMonoclonal antibody

Also known as MAA868

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

Abelacimab clinical trials

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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Competitive Landscape -Atrial Fibrillation 159 trials (matched to "Atrial Fibrillation (AF)")

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 developed for patients with Atrial Fibrillation (AF) who are at high risk and have been deemed unsuitable for oral anticoagulation. It is currently in Phase 3 clinical development, with trials evaluating its efficacy and safety in this patient population.

What does Abelacimab target?

Abelacimab targets and inhibits Factor XI (F11), a protein involved in blood clotting. By inhibiting this target, Abelacimab is designed to potentially reduce thrombotic events in patients with Atrial Fibrillation who cannot take oral anticoagulants. It is a monoclonal antibody with an inhibitor mechanism of action.

Who makes Abelacimab?

Abelacimab is being developed by Novartis AG, a multinational pharmaceutical company listed on the stock exchange under the ticker symbol NVS. The company is conducting Phase 3 clinical trials to evaluate the drug's efficacy and safety in patients with Atrial Fibrillation.

What phase is Abelacimab in?

Abelacimab is currently in Phase 3 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. Two Phase 3 trials are ongoing or planned to assess its efficacy and safety in high-risk patients with Atrial Fibrillation who are unsuitable for oral anticoagulation.

What clinical trials is Abelacimab in?

Abelacimab is being studied in two Phase 3 clinical trials. The first, NCT05712200 (LILAC-TIMI 76), is recruiting 1,900 participants across multiple countries. The second, NCT07739888, is not yet recruiting and plans to enroll 2,500 participants. Both trials focus on high-risk patients with Atrial Fibrillation unsuitable for oral anticoagulation.

Is Abelacimab the same as LILAC-TIMI 76?

No, Abelacimab is the drug being studied, while LILAC-TIMI 76 is the name of one of its clinical trials. The trial, identified as NCT05712200, is a Phase 3 study evaluating the efficacy and safety of Abelacimab in high-risk patients with Atrial Fibrillation who have been deemed unsuitable for oral anticoagulation.