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A Study to Investigate the Efficacy and Safety of Rilzabrutinib in Adult Participants With Graves' Disease

An Open-label Phase 2 Study to Investigate the Efficacy and Safety of Rilzabrutinib in Adult Participants With Graves' Disease

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06984627
Enrollment
30
Registered
2025-05-22
Start date
2025-09-02
Completion date
2026-09-23
Last updated
2026-07-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Graves' Disease

Brief summary

This is a parallel group, Phase 2, 2-arm study to measure the treatment effect and safety of rilzabrutinib dose 1 or rilzabrutinib dose 2 in participants with Graves' disease, with and without Graves' orbitopathy, aged 18 years or older. Study details include: * Screening period (up to 4 weeks). * Treatment period (up to 16 weeks). * Follow-up period (4 weeks). The number of visits will be up to 13.

Interventions

DRUGRilzabrutinib dose 1

Pharmaceutical form:Tablet-Route of administration:Oral

DRUGRilzabrutinib dose 2

Pharmaceutical form:Tablet-Route of administration:Oral

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Participants who have a confirmed diagnosis of Graves' disease with active hyperthyroidism, with or without active Graves' orbitopathy at the time of screening. * A subset of participants will have a diagnosis of active Graves' orbitopathy, as confirmed by ophthalmic exam at screening and a clinical activity score (CAS) ≥3 for the most severely affected eye, and associated with one or more of the following: lid retraction ≥2 mm, moderate or severe soft tissue involvement, proptosis ≥2 mm, and/or intermittent or constant diplopia. * Contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.

Exclusion criteria

* History of hyperthyroidism not caused by Graves' disease (eg, hyperthyroidism due to toxic multinodular goiter, autonomous thyroid nodule, acute inflammatory thyroiditis). * History of thyroid storm or at high risk of developing thyroid storm as determined by evaluating clinician. * Enlarged thyroid goiter causing upper airway obstruction and/or requiring surgical intervention during the study period. * For participant with Graves' orbitopathy, requires immediate surgical ophthalmological intervention or is planning corrective surgery/irradiation during the course of the study. * Sight threatening Graves' orbitopathy or decreased visual acuity due to optic neuropathy within the last 6 months. * Corneal decompensation unresponsive to medical management. * Onset of Graves' orbitopathy symptoms \>9 months prior to baseline. The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Percent change from baseline in FT4 levelsAt Week16Free thyroxine

Secondary

MeasureTime frameDescription
Percent change from baseline in FT3 levelsAt Week16Free triiodothyronine
Proportion of participants with FT4 levels within normal limitsAt Week16
Proportion of participants with FT3 levels within normal limitsAt Week16
Incidence of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), adverse events of special interest (AESIs) and withdrawals due to TEAEs during the study periodUp to week 20

Countries

Canada, Germany, Italy, Spain, United Kingdom

Contacts

CONTACTTrial Transparency email recommended (Toll free for US & Canada)
Contact-US@sanofi.com800-633-1610

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 8, 2026