NCT06975865RecruitingPhase 3
The Efficacy and Safety of Rilzabrutinib in Participants Aged 10 to 65 Years With Sickle-cell Disease
A 52-week, Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group, Flexible-adaptive, Group Sequential Study to Evaluate the Efficacy and Safety of Rilzabrutinib in Participants Aged 10 to 65 Years With Sickle-cell Disease
Source: ClinicalTrials.gov · Last updated 15 Oct 2026
Brief summary (registry, in English)
This is a multicenter, randomized, double-blind, placebo-controlled, parallel-group, flexible-adaptive, group-sequential study (Part A), followed by an open-label LTE period (Part B) to investigate the efficacy, and safety of rilzabrutinib in participants with sickle-cell disease (SCD). Study details include: * Study duration: a 52-week double-blind period (Part A), followed by an open-label LTE period (Part B). Double-blind period has two parts, 50% (adult only) until the interim analysis (a proof-concept part analogous to a phase 2b study), and 50% (adult and children) after the interim analysis. Only the participants who complete double-blind treatment period (Part A) are eligible to continue to the LTE period. The duration of the LTE period (Part B) will be from the first-participant-in (FPI)-LTE (Part B) until the last participant who enters the LTE has completed 52 weeks. * Treatment duration: 52-week double-blind period (Part A); LTE period (Part B) from the (FPI until the last participant who enters the LTE has completed 52 weeks. * Visit frequency: Week visits based on the Schedule of Assessments.
- Status (registry)
- Recruiting
- Phase (registry)
- Phase 3
- Study type
- Interventional
- Enrollment
- 192 (estimated)
- First submitted
- 8 May 2025
- Start date
- 12 Aug 2025
- Primary completion date
- 23 Jul 2027
- Lead sponsor
- Sanofi
- Diseases
- Sickle cell disease
- NCT number
- NCT06975865
- EudraCT number
- 2024-518645-17
What you commit to
- Study type: Interventional · Phase 3
- Planned participants: 192
- From 12 Aug 2025 to the primary completion date, 23 Jul 2027
- 63 sites in 14 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Participants with uncontrolled or active HBV infection and/or HCV infection including those receiving antiviral therapy at the time of screening.
- Participant is taking or has received crizanlizumab (ADAKVEO®) within 90 days and/or voxelotor (OXBRYTA®) within 30 days prior to the Screening visit.
- The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
Other illness
- Participants are excluded from the study if any of the following criteria apply: Participants with medical history of lymphoma, leukemia, or any malignancy within the past 5 years except for basal cell or squamous epithelial carcinomas of the skin that have been resected with no evidence of metastatic disease for the past 3 years.
- Clinically relevant cardiac abnormality, in the opinion of the Investigator or electrocardiogram (ECG) findings.
- Participants with history of stroke, or history of abnormal transcranial doppler.
- HIV infection.
- A history of active or latent tuberculosis (TB)
- Positive COVID-19 molecular test.
Who the study is looking for
- Participants who have been diagnosed with SCD.
- Participants who have had between ≥2 and ≤10 episodes of documented clinical VOC within 12 months of the screening events.
- Participants who are either not on hydroxyurea and/or L-glutamine at the Screening Visit and does not plan to receive them during the course of the study or has received HU and/or L-glutamine for a minimum of 6 months. Participants on hydroxyurea and/or L-glutamine must have been on a stable weight-based dose level (mg/kg) for at least 3 months prior to the Screening Visit, with the intent to continue at the same weight-based dose level for the duration of the study, except for safety reasons.
- Participants with Eastern Cooperative Oncology Group (ECOG) performance status grade 2 or lower.
- Contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
- For participants ≥10 to \<18 years of age: the parent(s)/legal guardian(s) must provide written informed consent prior to any study-related procedures being performed.
Age in the registry: 10 years to 65 years · Sex: All · Does not accept healthy volunteers
Sites (63)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Investigational Site Number : 0560002 Coordinator of this site? Confirm its status | Brussels | Belgium | Recruiting |
| Investigational Site Number : 0560003 Coordinator of this site? Confirm its status | Brussels | Belgium | Recruiting |
| Investigational Site Number : 0560001 Coordinator of this site? Confirm its status | Leuven | Belgium | Recruiting |
| Investigational Site Number : 0560004 Coordinator of this site? Confirm its status | Liège | Belgium | Recruiting |
| Universidade Federal de Goias- Site Number : 0760002 Coordinator of this site? Confirm its status | Goiânia | Brazil | Recruiting |
| Fundação Bahiana de Infectologia- Site Number : 0760009 Coordinator of this site? Confirm its status | Salvador | Brazil | Recruiting |
| Hospital Santa Izabel- Site Number : 0760006 Coordinator of this site? Confirm its status | Salvador | Brazil | Recruiting |
| Fundação Faculdade Regional de Medicina de São José do Rio Preto- Site Number : 0760001 Coordinator of this site? Confirm its status | São José do Rio Preto | Brazil | Recruiting |
| Hospital Samaritano De Sao Paulo- Site Number : 0760005 Coordinator of this site? Confirm its status | São Paulo | Brazil | Recruiting |
| Investigational Site Number : 2760005 Coordinator of this site? Confirm its status | Berlin | Germany | Recruiting |
| Investigational Site Number : 2760002 Coordinator of this site? Confirm its status | Essen | Germany | Recruiting |
| Investigational Site Number : 2760004 Coordinator of this site? Confirm its status | Stuttgart | Germany | Recruiting |
| Investigational Site Number : 7240001 Coordinator of this site? Confirm its status | Madrid | Spain | Recruiting |
| Investigational Site Number : 7240002 Coordinator of this site? Confirm its status | Madrid | Spain | Recruiting |
| Investigational Site Number : 2500002 Coordinator of this site? Confirm its status | Créteil | France | Recruiting |
| Investigational Site Number : 2500005 Coordinator of this site? Confirm its status | Marseille | France | Recruiting |
| Investigational Site Number : 2500001 Coordinator of this site? Confirm its status | Paris | France | Recruiting |
| Investigational Site Number : 2500004 Coordinator of this site? Confirm its status | Toulouse | France | Recruiting |
| Investigational Site Number : 8260001 Coordinator of this site? Confirm its status | London | United Kingdom | Recruiting |
| Investigational Site Number : 8260002 Coordinator of this site? Confirm its status | London | United Kingdom | Recruiting |
| Investigational Site Number : 8260005 Coordinator of this site? Confirm its status | Manchester | United Kingdom | Recruiting |
| Investigational Site Number : 3000001 Coordinator of this site? Confirm its status | Athens | Greece | Recruiting |
| Investigational Site Number : 3000003 Coordinator of this site? Confirm its status | Athens | Greece | Recruiting |
| Investigational Site Number : 3000002 Coordinator of this site? Confirm its status | Pátrai | Greece | Recruiting |
| Investigational Site Number : 3760002 Coordinator of this site? Confirm its status | Afula | Israel | Recruiting |
| Investigational Site Number : 3760001 Coordinator of this site? Confirm its status | Afula | Israel | Recruiting |
| Investigational Site Number : 3760005 Coordinator of this site? Confirm its status | Haifa | Israel | Recruiting |
| Investigational Site Number : 3760006 Coordinator of this site? Confirm its status | Haifa | Israel | Recruiting |
| Investigational Site Number : 3800006 Coordinator of this site? Confirm its status | Florence | Italy | Recruiting |
| Investigational Site Number : 3800008 Coordinator of this site? Confirm its status | Genoa | Italy | Recruiting |
| Investigational Site Number :3800004 Coordinator of this site? Confirm its status | Milan | Italy | Recruiting |
| Investigational Site Number : 3800005 Coordinator of this site? Confirm its status | Naples | Italy | Recruiting |
| Investigational Site Number :3800007 Coordinator of this site? Confirm its status | Orbassano | Italy | Recruiting |
| Investigational Site Number : 3800002 Coordinator of this site? Confirm its status | Palermo | Italy | Recruiting |
| Investigational Site Number : 3800001 Coordinator of this site? Confirm its status | Rome | Italy | Recruiting |
| Investigational Site Number : 3800003 Coordinator of this site? Confirm its status | Verona | Italy | Recruiting |
| Investigational Site Number : 5280002 Coordinator of this site? Confirm its status | Rotterdam | Netherlands | Recruiting |
| Investigational Site Number : 5120001 Coordinator of this site? Confirm its status | Muscat | Oman | Recruiting |
| Investigational Site Number : 6820003 Coordinator of this site? Confirm its status | Riyadh | Saudi Arabia | Recruiting |
| University of Michigan Health System - Ann Arbor- Site Number : 8400035 Coordinator of this site? Confirm its status | Ann Arbor | United States | Recruiting |
| University of Maryland School of Medicine - Baltimore- Site Number : 8400041 Coordinator of this site? Confirm its status | Baltimore | United States | Recruiting |
| University of Alabama at Birmingham- Site Number : 8400003 Coordinator of this site? Confirm its status | Birmingham | United States | Recruiting |
| University of Illinois-Chicago - College of Medicine- Site Number : 8400054 Coordinator of this site? Confirm its status | Chicago | United States | Recruiting |
| University of California San Francisco- Site Number : 8400040 Coordinator of this site? Confirm its status | Clovis | United States | Recruiting |
| Oncology & Hematology Associates of West Broward- Site Number : 8400029 Coordinator of this site? Confirm its status | Coral Springs | United States | Recruiting |
| Southern Specialty Research- Site Number : 8400059 Coordinator of this site? Confirm its status | Flowood | United States | Recruiting |
| Prisma Health- Site Number : 8400051 Coordinator of this site? Confirm its status | Greenville | United States | Recruiting |
| Baylor College of Medicine- Site Number : 8400055 Coordinator of this site? Confirm its status | Houston | United States | Recruiting |
| UT Physicians - Memorial Hermann- Site Number : 8400052 Coordinator of this site? Confirm its status | Houston | United States | Recruiting |
| Indiana University Health Riley Hospital for Children- Site Number : 8400056 Coordinator of this site? Confirm its status | Indianapolis | United States | Recruiting |
| David Geffen School of Medicine at UCLA- Site Number : 8400032 Coordinator of this site? Confirm its status | Los Angeles | United States | Recruiting |
| University of Tennessee Health Science Center- Site Number : 8400045 Coordinator of this site? Confirm its status | Memphis | United States | Recruiting |
| Sylvester Comprehensive Cancer Center- Site Number : 8400020 Coordinator of this site? Confirm its status | Miami | United States | Recruiting |
| Phoenix Children's Hospital- Site Number : 8400028 Coordinator of this site? Confirm its status | Phoenix | United States | Recruiting |
| Oregon Health & Science University (OHSU)- Site Number : 8400043 Coordinator of this site? Confirm its status | Portland | United States | Recruiting |
| VCU Massey Cancer Center: Dalton Oncology Clinic- Site Number : 8400012 Coordinator of this site? Confirm its status | Richmond | United States | Recruiting |
| Louisiana State University Health Sciences Center - Shreveport- Site Number : 8400037 Coordinator of this site? Confirm its status | Shreveport | United States | Recruiting |
| Richmond University Medical Center- Site Number : 8400038 Coordinator of this site? Confirm its status | Staten Island | United States | Recruiting |
| Montefiore Medical Center - Moses Campus- Site Number : 8400057 Coordinator of this site? Confirm its status | The Bronx | United States | Recruiting |
| MedStar Georgetown University Hospital- Site Number : 8400036 Coordinator of this site? Confirm its status | Washington D.C. | United States | Recruiting |
| Investigational Site Number : 7920001 Coordinator of this site? Confirm its status | Adana | Turkey (Türkiye) | Recruiting |
| Investigational Site Number : 7920002 Coordinator of this site? Confirm its status | Adana | Turkey (Türkiye) | Recruiting |
| Investigational Site Number : 7920003 Coordinator of this site? Confirm its status | Mersin | Turkey (Türkiye) | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.