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BHV-1300

Phase 3

Graves Disease | Small molecule | Endocrine |Biohaven Ltd.|Trials Updated: Oct 19, 2026

BHV-1300 development status

Highest phase Phase 3
Registered trials 2 across 1 sponsor since May 2025

BHV-1300 target and mechanism

Molecular targetIgG
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials2
Total Enrollment315

FDA Designations

No designations recorded

BHV-1300 clinical trials

BHV-1300 · 2 trials · 1 indication

Phase 3 1Phase 1 1
NCT07661056Study to Determine if BHV-1300 is Effective and Safe in Adults With Graves' DiseaseGraves Disease
RECRUITING300 Analytics
PHASE3RECRUITING
Study to Determine if BHV-1300 is Effective and Safe in Adults With Graves' Disease
Graves DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of participants on BHV-1300 vs placebo who are not on an antithyroid drug and with normal thyroid function (total T3, free T4 (FT4), & TSH within normal limits) at Week 26.
Week 26
Number of participants with Serious AEs (SAEs), AEs leading to discontinuation, deaths
Baseline to Week 52

To assess the safety and tolerability of BHV-1300. This objective will be measured by assessing the number of unique subjects with SAEs, AEs leading to discontinuation or deaths that are observed during the Open-label Treatment Phase (up to 52 weeks).

Number of participants with Grade 3-4 (CTCAE/DAIDS) treatment-emergent laboratory abnormalities
Baseline to Week 52

To assess the safety and tolerability of BHV-1300. This objective will be measured by assessing the number of unique subjects with Grade 3 or 4 treatment-emergent laboratory abnormalities.

Secondary Endpoints

Number of participants on BHV-1300 vs placebo who are not on an antithyroid drug and with normal thyroid hormone (Total T3 and FT4) at Week 26.
Week 26
Change from baseline in TRAb (TBII) of participants on BHV-1300 vs placebo at Week 6
Baseline to Week 6
Change from baseline in TRAb (TBII) of participants on BHV-1300 vs placebo at Week 26
Baseline to Week 26
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
BHV-1300EXPERIMENTALBHV-1300 is delivered subcutaneously via autoinjector. Participants will be randomized in a 2:1 ratio to receive either BHV-1300 or placebo.
PlaceboPLACEBO_COMPARATORMatching placebo is delivered subcutaneously via autoinjector. Participants will be randomized in a 2:1 ratio to receive either BHV-1300 or placebo.

Interventions

NameTypeDescription
BHV-1300DRUGdelivered subcutaneously via autoinjector
PlaceboDRUGdelivered subcutaneously via autoinjector
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Eligibility Criteria

Age Range18 Years to 70 Years
SexALL
Healthy VolunteersNo
Study Sites56

Key Inclusion Criteria: 1. Participants must have serologically confirmed Graves' disease as documented by presence of elevated autoantibodies 2. Participants must have active hyperthyroidism due to Graves' disease Key Exclusion Criteria: 1. History of hyperthyroidism not caused by Graves' Diseas...

Countries:United StatesCanadaPuerto RicoAustralia
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Recent Changes (Last 90 Days)

LOWOct 19, 2026NCT07661056lastUpdatePostDate: changed
LOWOct 13, 2026NCT07661056lastUpdatePostDate: changed
LOWOct 13, 2026NCT07661056lastUpdatePostDate: changed
LOWOct 6, 2026NCT07661056lastUpdatePostDate: changed
LOWOct 6, 2026NCT07661056lastUpdatePostDate: changed
LOWOct 1, 2026NCT07661056lastUpdatePostDate: changed
LOWOct 1, 2026NCT07661056lastUpdatePostDate: changed
LOWSep 17, 2026NCT07661056lastUpdatePostDate: changed
LOWSep 17, 2026NCT07661056lastUpdatePostDate: changed
LOWSep 3, 2026NCT07661056lastUpdatePostDate: changed
LOWSep 3, 2026NCT07661056lastUpdatePostDate: changed
LOWAug 31, 2026NCT07661056lastUpdatePostDate: changed
LOWAug 31, 2026NCT07661056lastUpdatePostDate: changed
LOWAug 7, 2026NCT07661056lastUpdatePostDate: changed
LOWAug 7, 2026NCT07661056lastUpdatePostDate: changed
LOWAug 5, 2026NCT07661056lastUpdatePostDate: changed
LOWJul 31, 2026NCT06980649lastUpdatePostDate: changed
LOWJul 31, 2026NCT06980649lastUpdatePostDate: changed
LOWJul 30, 2026NCT07661056lastUpdatePostDate: changed
LOWJul 30, 2026NCT07661056lastUpdatePostDate: changed

Frequently asked questions about BHV-1300

What is BHV-1300 used for in Graves' Disease?

BHV-1300 is an investigational small molecule being developed by Biohaven Ltd. for the treatment of Graves' Disease, an autoimmune endocrine condition. It is being studied in adults 18 years and older. BHV-1300 has not been approved by the FDA and remains in clinical development.

What does BHV-1300 target?

BHV-1300 targets IgG, a class of antibodies involved in autoimmune responses. By targeting IgG, BHV-1300 is designed to reduce the antibody-mediated processes that drive Graves' Disease. It is a small molecule therapeutic being developed by Biohaven Ltd. (ticker: BHVN).

Who is developing BHV-1300?

BHV-1300 is being developed by Biohaven Ltd., which trades under the ticker BHVN. The company is advancing the small molecule in clinical trials for Graves' Disease, with two active studies currently recruiting participants.

What phase is BHV-1300 in?

BHV-1300 is in Phase 3 clinical development for Graves' Disease. Biohaven Ltd. is conducting a Phase 3 trial alongside a Phase 1 study. BHV-1300 is investigational and has not received FDA approval.

What clinical trials is BHV-1300 in?

BHV-1300 is being evaluated in two recruiting clinical trials for Graves' Disease. The Phase 3 trial NCT07661056 is enrolling 300 adults across the United States, Canada, and Puerto Rico. The Phase 1 trial NCT06980649 is enrolling 15 adults in the United States and Australia. Both are randomized, double-blind, and placebo-controlled.