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Taking people in CanadaPhase 3

Study to Determine if BHV-1300 is Effective and Safe in Adults With Graves' Disease

Key facts

Where
East York, Surrey, and Winnipeg, CanadaSee the 4 sites
Phase
Phase 3

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 70 years old?

Source: NCT07661056, who can take part

Where in Canada

  • East York, OntarioHospital not named in the registryContact: Chief Medical OfficerTaking people
  • East York, OntarioHospital not named in the registryContact: Chief Medical OfficerTaking people
  • Surrey, British ColumbiaHospital not named in the registryContact: Chief Medical OfficerTaking people
  • WinnipegHospital not named in the registryContact: Chief Medical OfficerTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Trial details

Who runs it
Biohaven Therapeutics Ltd.
Trial code
NCT07661056EU 2026-526455-53-00
Record updated
12 November 2026
Original description
The purpose of this study is to evaluate the efficacy and safety of BHV-1300 in adult participants with Graves' disease who are actively hyperthyroidRead full original descriptionShow less

A Phase 3, Double-blind, Multicenter, Randomized, Placebo-Controlled Study to Evaluate the Efficacy, Safety and Tolerability of BHV-1300 in the Treatment of Adults With Graves' Disease

The purpose of this study is to evaluate the efficacy and safety of BHV-1300 in adult participants with Graves' disease who are actively hyperthyroid

Inclusion: Participants must have serologically confirmed Graves' disease as documented by presence of elevated autoantibodies; Participants must have active hyperthyroidism due to Graves' disease.

Exclusion: History of treatment with radioactive iodine or thyroid surgery; Have received levothyroxine, desiccated thyroid extract, or T3 at any dose within six weeks of the Baseline/Day 1 Visit; Are expected to require urgent or emergent thyroid surgery or ablation within six weeks of Baseline/Day 1 or throughout the study; History of hyperthyroidism not caused by Graves' Disease (e.g., toxic adenoma or toxic multinodular goiter); Thyroid storm, i.e. severe thyrotoxicosis with evidence of systemic decompensation (e.g., Burch-Wartkofsky Point Scale of ≥ 45 or Japanese Thyroid Association category 1 or 2, with accompanying manifestations including hyperpyrexia, tachycardia, arrhythmias, congestive heart failure, agitation, delirium, psychosis, stupor, and coma, as well as nausea, vomiting, diarrhea, or hepatic failure) within 6 weeks of Screening; Have autoimmune disease other than Graves' disease requiring treatment; Have moderate to severe thyroid eye disease (TED) or are expected to require immediate surgical intervention and/or are planning corrective surgery/irradiation or medical therapy for TED during study participation.

ClinicalTrials.gov NCT07661056 · EU CTIS 2026-526455-53-00