A 52-week Study of Rilzabrutinib Efficacy and Safety Compared to Placebo in Adults Diagnosed With IgG4-related Disease

NCT ID: NCT07190196

Last Updated: 2025-11-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

124 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-09-26

Study Completion Date

2030-12-25

Brief Summary

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This is a Phase 3, parallel group, 2-arm, randomized, double blind, placebo-controlled, 52-week treatment study to assess the efficacy and safety of rilzabrutinib as a treatment for adult patients with active IgG4-RD.

The purpose of this study is to measure time to IgG4-RD clinical disease flare, and other relevant efficacy endpoints including flare-free rate, control of IgG4-RD disease activity, use of GC rescue and safety parameters such as treatment-emergent adverse events, clinical laboratory values and electrocardiograms (ECG) in participants aged 18 years and above, diagnosed with IgG4-RD and treated with rilzabrutinib tablets over a 52-week placebo-controlled period.

Study details include:

The study duration will be up to 60 weeks, including a 4-6-week screening period, a 52-week double blind treatment period, and 2 weeks of follow up (plus an optional OLE of 108 weeks).

The number of visits will be 16 (plus an optional 9 visits during the OLE).

Detailed Description

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Conditions

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Immunoglobulin G4 Related Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Rilzabrutinib

Rilzabrutinib

Group Type EXPERIMENTAL

Rilzabrutinib

Intervention Type DRUG

Pharmaceutical form:Tablet-Route of administration:Oral

Glucocorticoid

Intervention Type DRUG

Pharmaceutical form:Tablet, solution, suspension formulations according to local standard practices-Route of administration:Oral

Placebo

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Pharmaceutical form:Tablet-Route of administration:Oral

Glucocorticoid

Intervention Type DRUG

Pharmaceutical form:Tablet, solution, suspension formulations according to local standard practices-Route of administration:Oral

Interventions

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Rilzabrutinib

Pharmaceutical form:Tablet-Route of administration:Oral

Intervention Type DRUG

Placebo

Pharmaceutical form:Tablet-Route of administration:Oral

Intervention Type DRUG

Glucocorticoid

Pharmaceutical form:Tablet, solution, suspension formulations according to local standard practices-Route of administration:Oral

Intervention Type DRUG

Other Intervention Names

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SAR444671

Eligibility Criteria

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Inclusion Criteria

* Participants must have an adjudicated clinical diagnosis of IgG4-RD
* Participants meeting Step 1 Entry criteria of 2019 ACR/EULAR classification criteria for IgG4-RD and Total inclusion points are ≥20
* Participants with active disease at screening in at least one organ system, excluding lymph nodes, as an IgG4-RD Responder Index total activity score ≥ 2
* Participants with history or current involvement of at least 1 organ/site (excluding lymph nodes) affected with IgG4-RD.
* Participants with active IgG4-RD controlled for at least 2 weeks while on a stable dose of GC.
* Participants willing to taper off GC after starting IMP.
* Participants willing and able to participate in repeated study protocol mandated or clinically indicated imaging procedures to assess IgG4-RD such as computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), or ultrasound.
* Participants who have an up-to-date vaccination status as per local guidelines. The last dose of live vaccines should be received at least 30 days before Day 1.

Exclusion Criteria

* History of retroperitoneal fibrosis, sclerosing mesenteritis, fibrosing mediastinitis, or other overwhelmingly fibrotic expression of IgG4-RD that is the sole disease manifestation.
* Active malignancy or history of malignancy within 5 years before Day 1, except completely treated in situ carcinoma of the cervix, completely treated, and resolved nonmetastatic squamous or basal cell carcinoma of the skin.
* Known or suspected immunodeficiency, including history of invasive opportunistic infections (eg, histoplasmosis, listeriosis, coccidioidomycosis, pneumocystosis, and aspergillosis) despite infection resolution, or otherwise recurrent infections of abnormal frequency or prolonged duration suggesting an immune compromised status, as judged by the Investigator.
* History of serious infections with the potential for recurrence (as judged by the Investigator), with less than 4 weeks interval between resolution of serious infection and first dose of study drug, or currently active moderate to severe infection at Screening (Grade 2 or higher).
* Current or chronic history of liver disease unrelated to IgG4-RD.
* Refractory nausea and vomiting, malabsorption, external biliary shunt, bariatric surgery, or significant bowel resection that would preclude adequate rilzabrutinib/placebo absorption.
* History of solid organ transplant.
* Planned major surgical procedure during the participation in this study.
* History of drug abuse within the previous 12 months.
* Alcoholism or excessive alcohol use, defined as regular consumption of more than approximately 3 standard drinks per day.
* Prior participation in any rilzabrutinib studies or other BTK inhibitor studies.
* History of treatment with an investigational drug within 6 months or 5 half-lives of the investigational drug, whichever is longer.
* Laboratory abnormalities at the screening visit identified by the central laboratory The above information is not intended to contain all considerations relevant to a participant's potential participation in a clinical trial.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Sanofi

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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San Jose Clinical Trials- Site Number : 8400016

San Jose, California, United States

Site Status RECRUITING

Life Clinical Trials - Margate - Colonial Drive- Site Number : 8400002

Margate, Florida, United States

Site Status RECRUITING

Stryde Research- Site Number : 8400011

Plano, Texas, United States

Site Status RECRUITING

Epic Medical Research - Red Oak- Site Number : 8400003

Red Oak, Texas, United States

Site Status RECRUITING

Velocity Clinical Research - Seattle- Site Number : 8400005

Seattle, Washington, United States

Site Status RECRUITING

Investigational Site Number : 1240001

Sherbrooke, Quebec, Canada

Site Status RECRUITING

Investigational Site Number : 1520003

Santiago, Reg Metropolitana de Santiago, Chile

Site Status RECRUITING

Countries

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United States Canada Chile

Central Contacts

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Trial Transparency email recommended (Toll free for US & Canada)

Role: CONTACT

Phone: 800-633-1610

Email: [email protected]

Related Links

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Other Identifiers

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U1111-1316-0266

Identifier Type: REGISTRY

Identifier Source: secondary_id

2025-521398-15

Identifier Type: REGISTRY

Identifier Source: secondary_id

EFC17359

Identifier Type: -

Identifier Source: org_study_id