The Efficacy and Safety of Rilzabrutinib in Participants Aged 10 to 65 Years With Sickle-cell Disease

Brief Summary
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.
Brief Title
The Efficacy and Safety of Rilzabrutinib in Participants Aged 10 to 65 Years With Sickle-cell Disease
Central Contacts
Central Contact Role
Contact
Central Contact Phone
800-633-1610
Central Contact Phone Ext
option 6
Central Contact Email
contact-us@sanofi.com
Completion Date
Completion Date Type
Estimated
Conditions
SICKLE CELL DISEASE
Eligibility Criteria
Inclusion Criteria:

* 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.

Exclusion Criteria:

* 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.
* Participants with uncontrolled or active HBV infection and/or HCV infection including those receiving antiviral therapy at the time of screening.
* HIV infection.
* A history of active or latent tuberculosis (TB)
* Positive COVID-19 molecular test.
* 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.
Inclusion Criteria
Inclusion Criteria:

* 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.

Gender
All
Gender Based
false
Healthy Volunteers
No
Last Update Submit Date
Maximum Age
65 Years
Minimum Age
10 Years
NCT Id
NCT06975865
Org Class
Industry
Org Full Name
Sanofi
Org Study Id
EFC17872
Overall Status
Recruiting
Phases
Phase 3
Primary Completion Date
Primary Completion Date Type
Estimated
Official Title
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
Primary Outcomes
Outcome Description
Calculated from total number of clinical VOC incidents and total number of days during the observation period
Outcome Measure
Annualized rate of clinical VOC
Outcome Time Frame
At Week 52
Secondary Ids
Secondary Id
2024-518645-17
Secondary Id
U1111-1311-1896
Secondary Outcomes
Outcome Time Frame
Until Week 52
Outcome Measure
Time to first clinical VOC incidence
Outcome Time Frame
At Week 52
Outcome Measure
Annualized rate of visits due to SCD-related complications as assessed by the Investigator
Outcome Time Frame
At Week 52
Outcome Measure
Annualized rate of home-managed VOCs as reported in the Sickle Cell Pain Crisis (SCPC) eDiary
Outcome Time Frame
From baseline to Week 52
Outcome Measure
Change in fatigue as measured by the PROMIS SF v1.0 Fatigue 13a total score (adults)
Outcome Time Frame
From baseline to Week 52
Outcome Measure
Change in Hb levels
Outcome Time Frame
From baseline to Week 52
Outcome Measure
Change in fatigue as measured by the PedsQL Multidimensional Fatigue Scale total score (pediatric participants)
Outcome Time Frame
Until Week 52
Outcome Measure
Incidence of treatment emergent adverse events (TEAEs), including serious adverse events (SAEs), adverse events of special interest (AESIs) and adverse events leading to discontinuation
Outcome Time Frame
Until Week 52
Outcome Measure
Incidence of potentially clinically significant laboratory, vital signs, and ECG abnormalities
Outcome Time Frame
Until Week 52
Outcome Measure
Absolute number of simple and exchange blood transfusion
Outcome Time Frame
Until Week 52
Outcome Measure
Number of days requiring acetaminophen, NSAID and/or short-acting opioid usage
Start Date
Start Date Type
Actual
Status Verified Date
First Submit Date
First Submit QC Date
Std Ages
Child
Adult
Older Adult
Maximum Age Number (converted to Years and rounded down)
65
Minimum Age Number (converted to Years and rounded down)
10
Investigators
Investigator Type
Principal Investigator
Investigator Name
Amy Sharma
Investigator Email
amysharma@montefiore.org
Investigator Department
Medicine
Investigator Division
Oncology
Investigator Sponsor Organization
External
Study Department
Oncology (Medical/Hematologic)
Study Division
Hematology (non-malignant)
Categories Mesh Debug
Blood Disorders --- ANEMIA, SICKLE CELL
Sickle Cell Disorders --- ANEMIA, SICKLE CELL
Blood Disorders --- ANEMIA, HEMOLYTIC, CONGENITAL
Blood Disorders --- ANEMIA, HEMOLYTIC
Blood Disorders --- ANEMIA
Blood Disorders --- HEMATOLOGIC DISEASES
MeSH Terms
ANEMIA, SICKLE CELL
ANEMIA, HEMOLYTIC, CONGENITAL
ANEMIA, HEMOLYTIC
ANEMIA
HEMATOLOGIC DISEASES
HEMIC AND LYMPHATIC DISEASES
HEMOGLOBINOPATHIES
GENETIC DISEASES, INBORN
CONGENITAL, HEREDITARY, AND NEONATAL DISEASES AND ABNORMALITIES