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Biohaven Advances a New Class of Precision Immunology Therapies: First MoDE Extracellular Protein Degrader, BHV-1300, Begins Phase 3 Pivotal Trial in Graves' Disease

$BHVNPress releaseJun 29, 2026, 7:30 AM ETRead the release

Biohaven enrolled the first patient in a pivotal Phase 3 trial of BHV-1300, the first MoDE extracellular protein degrader to reach this stage, for the treatment of Graves' disease. The therapy targets the TSHR-IgG1 autoantibody driving the disease rather than the thyroid gland itself, addressing a significant unmet need as no new FDA-approved therapies have emerged in over 70 years.

Key figures

Drug Name
BHV-1300
Phase Of Trial
Phase 3
Dosing regimen
1,000 mg SC weekly
Global prevalence
~1%
Primary endpoint weeks
26
Trial enrollment target
approximately 300 adults
Phase 1b antibody reduction
>80%

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