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REGN5713

Phase 3

Allergic Conjunctivitis | Small molecule | Ophthalmology |Regeneron Pharmaceuticals, Inc.|Last Updated: Sep 1, 2026

Target and mechanism

Molecular targetBetV1
Target classAllergen
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials2
Total Enrollment404

FDA Designations

No designations recorded
Trial Stopped -NCT07309432: Sponsor Decision

Clinical trial landscape

REGN5713 · 4 trials · 3 indications

Phase 3 3Phase 2 1
NCT07309432Study of Bet v1 Antibodies Effect on Eye Allergy Symptoms in Adolescents and Adults With Birch Pollen AllergyAllergic Conjunctivitis
TERMINATED24 Analytics
NCT06602739A Study to Demonstrate the Effect of REGN5713-5715 on Reducing Ocular Allergy Signs and Symptoms in Adult Participants With Birch Pollen AllergyAllergic Conjunctivitis
COMPLETED54 Analytics
NCT04709575Study to Assess the Efficacy of Anti-Bet v 1 Monoclonal Antibodies in Adults to Reduce Symptoms of Seasonal Allergic RhinitisAllergic Rhinitis
COMPLETED353 Analytics
PHASE3TERMINATED
Study of Bet v1 Antibodies Effect on Eye Allergy Symptoms in Adolescents and Adults With Birch Pollen Allergy
Allergic ConjunctivitisUnlock trial analytics
PHASE3COMPLETED
A Study to Demonstrate the Effect of REGN5713-5715 on Reducing Ocular Allergy Signs and Symptoms in Adult Participants With Birch Pollen Allergy
Allergic ConjunctivitisUnlock trial analytics
PHASE3COMPLETED
Study to Assess the Efficacy of Anti-Bet v 1 Monoclonal Antibodies in Adults to Reduce Symptoms of Seasonal Allergic Rhinitis
Allergic RhinitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Ocular itch score in participants receiving REGN5713-5715 compared to placebo
At Day 8 post-Conjunctival Allergen Challenge (CAC)

Assessed using the Ora Calibra® Conjunctival Allergen Challenge Ocular Itching Scale, a 0-4 scale where 0 = none and 4= incapacitating itch, 0.5 unit increments

Ocular itch score in response to birch allergen challenge
At Day 8 post-Conjunctival Allergen Challenge (CAC)

Assessed using the Ora Calibra® Conjunctival Allergen Challenge Ocular Itching Scale, a 0-4 point scale where 0 = none and 4= incapacitating itch, 0.5 unit increments

Combined Symptom and Medication Score (CSMS) in Participants Who Receive a Single Dose of REGN5713-5714-5715 Versus Placebo
Until the end of Birch Pollen Season, up to Week 16

The average CSMS will be calculated based on daily symptom score and daily medication score recorded over the duration of the birch pollen season (BPS). CSMS is calculated by adding the Daily Medication Score (DMS) and Total Symptom Score (TSS) together, with scores ranging between 0 (none) and 38 (severe).

Mean Total Nasal Symptom Score (TNSS) (2 to 6 Hours) During Out-of-season Birch Allergen Environmental Exposure Unit (EEU) Challenge (REGN5713-5714-5715 vs. Placebo) at Day 29
Day 29 from randomization (Out-of-season)

TNSS ranges from 0 (none) to 12 (severe): sum of 4 nasal symptoms (nasal congestion, itching, \& runny nose, \& sneezing) graded on a Likert scale ranging from 0 (none) to 3 (severe); Higher score indicates worse outcome.

Secondary Endpoints

Achievement of at least a 1-point reduction in ocular itch score for at least 2 out of 3 post-CAC time points in participants receiving REGN5713-5715 compared to placebo
Baseline to Day 8 post-CAC
Ocular itch score in participants receiving REGN5713-5715 compared to placebo
At Day 57 post-CAC
Conjunctival redness score in participants receiving REGN5713-5715 compared to placebo
At Day 8 and Day 57 post-CAC
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
REGN5713-5715EXPERIMENTAL -
REGN5713EXPERIMENTAL -
REGN5715EXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
REGN5713-5714-5715EXPERIMENTALREGN5713-5714-5715 administered subcutaneously
Placebo OnlyPLACEBO_COMPARATORPlacebo matching REGN5713-5714-5715 administered subcutaneously
Matching PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
REGN5713DRUGAdministered per protocol
REGN5715DRUGAdministered per protocol
PlaceboDRUGAdministered per protocol
REGN5714DRUGAdministered subcutaneously
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Eligibility Criteria

Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites2

Key Inclusion Criteria: 1. Positive SPT to birch allergen extract 2. Positive allergen specific Immunoglobulin E (sIgE) tests for birch and Bet v 1 3. Positive CAC criteria Key Exclusion Criteria: 1. Significant and/or severe environmental allergies causing symptoms (outside of the challenge sett...

Countries:United StatesCanadaBelgiumDenmarkGermany
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Recent Changes (Last 90 Days)

CRITICALSep 1, 2026NCT07309432Status: RECRUITING → TERMINATED
CRITICALSep 1, 2026NCT07309432Status: RECRUITING → TERMINATED
LOWJun 23, 2026NCT07309432lastUpdatePostDate: changed
LOWJun 23, 2026NCT07309432lastUpdatePostDate: changed

Frequently asked questions about REGN5713

What is REGN5713 used for?

REGN5713 is an investigational small molecule being developed by Regeneron Pharmaceuticals for allergic conjunctivitis and allergic rhinitis caused by birch pollen allergy. It is designed to reduce symptoms of seasonal allergic rhinitis and ocular allergy signs in adults and adolescents. The drug is currently in Phase 3 clinical development.

What does REGN5713 target?

REGN5713 targets Bet v 1, the major allergen in birch pollen. As an anti-Bet v 1 monoclonal antibody, it binds to this allergen to reduce allergic responses. The drug is being studied for its ability to lessen symptoms of allergic rhinitis and conjunctivitis upon exposure to birch allergen.

Who makes REGN5713?

REGN5713 is being developed by Regeneron Pharmaceuticals, Inc., a biopharmaceutical company traded on NASDAQ under the ticker REGN. Regeneron is conducting clinical trials to evaluate the drug's efficacy in treating allergic rhinitis and conjunctivitis associated with birch pollen allergy.

What phase is REGN5713 in?

REGN5713 is in Phase 3 clinical development for allergic conjunctivitis and allergic rhinitis. It is an investigational drug and has not been approved by regulatory authorities. The development program includes completed Phase 2 and Phase 3 trials, with additional studies ongoing or recently completed.

What clinical trials is REGN5713 in?

REGN5713 has been studied in several clinical trials. NCT04709575 was a Phase 3 study in adults with seasonal allergic rhinitis. NCT05430919 was a Phase 2 trial in Canada. NCT06602739 was a Phase 3 study for ocular allergy signs, and NCT07309432 was a Phase 3 trial in adolescents and adults, though it was terminated.

Is REGN5713 the same as REGN5715?

REGN5713 is often studied in combination with REGN5715, another anti-Bet v 1 antibody. Clinical trial NCT06602739 evaluated the effect of REGN5713-5715 on reducing ocular allergy symptoms. While they are separate antibodies, they are frequently administered together in studies for birch pollen allergy.