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REGN7508

Phase 3

Atrial Fibrillation (AF) | Small molecule | Cardiovascular |Regeneron Pharmaceuticals, Inc.|Trials Updated: Oct 26, 2026

REGN7508 development status

Highest phase Phase 3
Registered trials 15 across 1 sponsor since Mar 2024

REGN7508 target and mechanism

Molecular targetFactor XI
Target classProtein
ModalitySmall molecule

Also known as REGN7508 (IV), cenvacibart

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials11
Total Enrollment41,155

FDA Designations

No designations recorded

REGN7508 clinical trials

REGN7508 · 11 trials · 7 indications

Phase 3 9Phase 2 2
NCT07876492A Study to Evaluate Cenvacibart (REGN7508) for Secondary Stroke Prevention in Adult ParticipantsSecondary Stroke
NOT YET_RECRUITING6,106 Analytics
NCT07697599Venous Thromboembolism (VTE) Prophylaxis With REGN7508 and REGN9933 in Adult and Adolescent Participants With a Peripherally Inserted Central Catheter (PICC)Venous Thromboembolism (VTE)
RECRUITING1,908 Analytics
NCT07493304Treatment and Secondary Prevention of Venous Thromboembolism (VTE) in Adult Participants With Solid and Hematologic CancersVenous Thromboembolism (VTE)
RECRUITING1,600 Analytics
NCT07626411Stroke and Systemic Embolism Prevention in Adult Participants With Atrial FibrillationAtrial Fibrillation (AF)
RECRUITING15,364 Analytics
NCT07318610Reducing Adverse Vascular Outcomes With Factor XI Inhibition in Adult Participants With Peripheral Artery DiseasePeripheral Artery Disease (PAD)
RECRUITING7,050 Analytics
NCT07430956Stroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation for Whom Oral Anticoagulation is UnsuitableAtrial Fibrillation (AF)
RECRUITING2,628 Analytics
NCT07410117REGN7508 in Adult Participants for Prevention of Cancer-Associated ThrombosisCancer-Associated Thrombosis (CAT)
RECRUITING1,120 Analytics
NCT07213778REGN7508 Versus Acetylsalicylic Acid (ASA) for Venous Thromboprophylaxis After Total Knee Arthroplasty in Adult ParticipantsSymptomatic Venous Thromboembolism (VTE)
RECRUITING2,000 Analytics
NCT07015905REGN7508 Versus Apixaban and Enoxaparin for Thromboprophylaxis After Total Knee Arthroplasty in AdultsVenous Thromboembolism (VTE)
RECRUITING2,000 Analytics
PHASE3NOT YET_RECRUITING
A Study to Evaluate Cenvacibart (REGN7508) for Secondary Stroke Prevention in Adult Participants
Secondary StrokeUnlock trial analytics
PHASE3RECRUITING
Venous Thromboembolism (VTE) Prophylaxis With REGN7508 and REGN9933 in Adult and Adolescent Participants With a Peripherally Inserted Central Catheter (PICC)
Venous Thromboembolism (VTE)Unlock trial analytics
PHASE3RECRUITING
Treatment and Secondary Prevention of Venous Thromboembolism (VTE) in Adult Participants With Solid and Hematologic Cancers
Venous Thromboembolism (VTE)Unlock trial analytics
PHASE3RECRUITING
Stroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation
Atrial Fibrillation (AF)Unlock trial analytics
PHASE3RECRUITING
Reducing Adverse Vascular Outcomes With Factor XI Inhibition in Adult Participants With Peripheral Artery Disease
Peripheral Artery Disease (PAD)Unlock trial analytics
PHASE3RECRUITING
Stroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation for Whom Oral Anticoagulation is Unsuitable
Atrial Fibrillation (AF)Unlock trial analytics
PHASE3RECRUITING
REGN7508 in Adult Participants for Prevention of Cancer-Associated Thrombosis
Cancer-Associated Thrombosis (CAT)Unlock trial analytics
PHASE3RECRUITING
REGN7508 Versus Acetylsalicylic Acid (ASA) for Venous Thromboprophylaxis After Total Knee Arthroplasty in Adult Participants
Symptomatic Venous Thromboembolism (VTE)Unlock trial analytics
PHASE3RECRUITING
REGN7508 Versus Apixaban and Enoxaparin for Thromboprophylaxis After Total Knee Arthroplasty in Adults
Venous Thromboembolism (VTE)Unlock trial analytics

Study Endpoints

Primary Endpoints

Time to first occurrence of ischemic stroke
Approximately 33 months
Time to first occurrence of International Society on Thrombosis and Haemostasis (ISTH) major bleeding
Approximately 33 months
Time-to-first event of centrally adjudicated VTE [symptomatic VTE or incidental VTE or asymptomatic VTE]
Approximately 6 months
Time-to-first event of centrally adjudicated International Society on Thrombosis and Haemostasis (ISTH)-defined major bleeding or Clinically Relevant Non-Major (CRNM) bleeding
Approximately 6 months
Occurrence of Treatment-Emergent Adverse Events (TEAEs)
Approximately 6 months

Part 1

Severity of TEAEs
Approximately 6 months

Part 1

Time-to-first event of centrally adjudicated recurrent VTE [DVT (symptomatic or asymptomatic [proximal] or Non-fatal PE (symptomatic or asymptomatic [in a segmental or larger pulmonary artery] )or VTE-related death)]
Up to approximately 3.5 years

Part 2

Time-to-first event of centrally adjudicated International Society of Thrombosis and Hemostasis (ISTH)-defined major bleeding or Clinically Relevant Non-Major (CRNM) bleeding
Up to approximately 3.5 years

Part 2

Time to first occurrence of stroke (ischemic, hemorrhagic, or of unspecified type) or systemic embolism
Approximately 36 months
Time to first occurrence of International Society on Thrombosis and Haemostasis (ISTH) major bleeding or ISTH Clinically Relevant Non-Major (CRNM) bleeding
Approximately 36 months
Time-to-first occurrence of a major thrombotic vascular event, consisting of Acute Limb Ischemia (ALI), major amputation (above the ankle) of vascular etiology, Myocardial Infarction (MI), ischemic stroke, or Cardiovascular (CV) death
Approximately up to 42 months

Cohort 1

Time-to-first occurrence of International Society of Thrombosis and Hemostasis (ISTH) major or Clinically Relevant Non-major (CRNM) bleeding
Approximately up to 42 months

Cohort 1 and 2

Time to first occurrence of ischemic stroke or systemic embolism
Up to 36 months
Time-to-first event of centrally adjudicated VTE (DVT, PE) or ATE, or thromboembolism- or ATE-related death
Through 6 months
Time-to-first event of centrally adjudicated International Society of Thrombosis and Hemostasis (ISTH) major bleeding or Clinically Relevant Non-Major (CRNM) bleeding
Through 6 months
Incidence of the composite endpoint of symptomatic VTE and all-cause death
Through day 30 visit
Incidence of the composite endpoint of asymptomatic or symptomatic Venous Thromboembolism (VTE) [including VTE-related death]
Through day 12 visit, approximately 14 days
Incidence of any bleeding
12 weeks

Defined as the composite of International Society on Thrombosis and Haemostasis (ISTH) major bleeding, ISTH Clinically Relevant Non-Major (CRNM) bleeding, or minor bleeding

Percentage of Participants With Confirmed, Adjudicated Venous Thromboembolism (VTE)
Through day 12

Composite endpoint that includes asymptomatic deep DVT (deep venous thrombosis) detected by unilateral venography of the operated leg; confirmed symptomatic DVT of either leg; confirmed fatal or nonfatal pulmonary embolism (PE) including unexplained death for which PE cannot be ruled out.

Secondary Endpoints

Total (first and subsequent) ischemic strokes
Approximately 33 months
Time to first occurrence of stroke (ischemic, hemorrhagic, or of unspecified type)
Approximately 33 months
Time to first occurrence of disabling stroke (ischemic, hemorrhagic, or of unspecified type)
Approximately 33 months
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
CenvacibartEXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
REGN7508EXPERIMENTAL -
REGN9933EXPERIMENTAL -
ApixabanACTIVE_COMPARATOR -
REGN7508 + PlaceboEXPERIMENTAL -
Apixaban + PlaceboACTIVE_COMPARATOR -
Cohort 1EXPERIMENTAL -
Cohort 2EXPERIMENTAL -
REGN7508 and PlaceboEXPERIMENTAL -
Placebo and ASAACTIVE_COMPARATOR -
IV REGN7508EXPERIMENTAL -
IV Placebo, SC REGN7508EXPERIMENTAL -
IV Placebo, apixabanACTIVE_COMPARATOR -
IV Placebo, enoxaparinACTIVE_COMPARATOR -
EnoxaparinACTIVE_COMPARATOR -

Interventions

NameTypeDescription
CenvacibartDRUGAdministered per the protocol
PlaceboDRUGAdministered per the protocol
REGN7508DRUGAdministered per the protocol
REGN9933DRUGAdministered per the protocol
ApixabanDRUGAdministered per the protocol
RivaroxabanDRUGAdministered per the protocol
Acetylsalicylic Acid (ASA)DRUGAdministered per the protocol
EnoxaparinDRUGAdministered per the protocol
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo

Key Inclusion Criteria: 1. Has a recent onset of neurological deficit attributed to non-cardioembolic focal brain ischemia as described in the protocol 2. Has index event (non-cardioembolic, non-procedural ischemic stroke, or high-risk TIA) within 30 days prior to randomization as described in the ...

Countries:GeorgiaUnited StatesBulgariaJapanRomaniaSouth KoreaCanadaUnited KingdomGreeceMalaysiaMoldovaSpainHungaryLatviaLithuaniaPolandArgentinaBrazil
Unlock Eligibility Criteria

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

Recent Changes (Last 90 Days)

LOWOct 26, 2026NCT07626411lastUpdatePostDate: changed
LOWOct 26, 2026NCT07626411lastUpdatePostDate: changed
LOWOct 22, 2026NCT07213778lastUpdatePostDate: changed
LOWOct 22, 2026NCT07318610lastUpdatePostDate: changed
LOWOct 22, 2026NCT07213778lastUpdatePostDate: changed
LOWOct 22, 2026NCT07318610lastUpdatePostDate: changed
LOWOct 21, 2026NCT07493304lastUpdatePostDate: changed
LOWOct 21, 2026NCT07175428lastUpdatePostDate: changed
LOWOct 21, 2026NCT07493304lastUpdatePostDate: changed
LOWOct 21, 2026NCT07175428lastUpdatePostDate: changed
LOWOct 21, 2026NCT07493304lastUpdatePostDate: changed
LOWOct 21, 2026NCT07175428lastUpdatePostDate: changed
LOWOct 15, 2026NCT07876492NEW_TRIAL: changed
LOWOct 15, 2026NCT07318610lastUpdatePostDate: changed
LOWOct 15, 2026NCT07876492NEW_TRIAL: changed
LOWOct 15, 2026NCT07318610lastUpdatePostDate: changed
LOWOct 14, 2026NCT07430956lastUpdatePostDate: changed
LOWOct 14, 2026NCT07430956lastUpdatePostDate: changed
LOWOct 13, 2026NCT07410117lastUpdatePostDate: changed
LOWOct 13, 2026NCT07410117lastUpdatePostDate: changed

Frequently asked questions about REGN7508

What is REGN7508?

REGN7508 is an investigational small molecule developed by Regeneron Pharmaceuticals that targets Factor XI, a protein involved in the blood clotting cascade. It is being studied as an anticoagulant for conditions including atrial fibrillation, venous thromboembolism, cancer-associated thrombosis, and peripheral artery disease.

What is REGN7508 used for?

REGN7508 is being developed to prevent and treat thrombotic conditions. Its Phase 3 program covers stroke and systemic embolism prevention in atrial fibrillation, treatment and secondary prevention of venous thromboembolism in cancer patients, VTE prophylaxis in patients with a peripherally inserted central catheter, and peripheral artery disease.

What does REGN7508 target?

REGN7508 targets Factor XI, a protein in the coagulation pathway. Inhibiting Factor XI is being explored as an approach to reduce clot formation while potentially preserving hemostasis. REGN7508 is a small molecule directed at this protein target.

Who is developing REGN7508?

REGN7508 is being developed by Regeneron Pharmaceuticals, Inc., which trades on Nasdaq under the ticker REGN. Regeneron is running the Phase 3 clinical program for the asset across several cardiovascular and thrombotic indications.

What phase is REGN7508 in?

REGN7508 is in Phase 3 clinical development. It is investigational and has not been established as approved therapy. Four Phase 3 trials are listed for the program, three of which are currently recruiting, with total planned enrollment of about 19,192 participants across the studies.

What clinical trials is REGN7508 in?

REGN7508 is in four Phase 3 trials: NCT07626411 in atrial fibrillation, NCT07430956 in atrial fibrillation for patients unsuitable for oral anticoagulation, NCT07493304 in cancer-associated venous thromboembolism, and NCT07697599 for VTE prophylaxis with a peripherally inserted central catheter. All are randomized, double-blind, and active-controlled.