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Rilzabrutinib crystalline form

Phase 1

Autoimmune Disorder | Small molecule | Immunology |Sanofi|Last Updated: Sep 3, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment28

FDA Designations

ORPHAN_DRUGFAST_TRACK

Clinical trial landscape

Rilzabrutinib crystalline form · 1 trial · 2 indications

Phase 1 1
NCT06342700A Food Effect and Relative Bioavailability Study of Rilzabrutinib in Healthy ParticipantsAutoimmune Disorder
COMPLETED28 Analytics
PHASE1COMPLETED
A Food Effect and Relative Bioavailability Study of Rilzabrutinib in Healthy Participants
Autoimmune DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

Relative bioavailability as assessed by rilzabrutinib Cmax following administration of the test and reference formulations in the fasted state
Day 1 to Day 8

Cmax: maximum plasma concentration

Relative bioavailability as assessed by rilzabrutinib AUClast following administration of the test and reference formulations in the fasted state
Day 1 to Day 8

AUClast: area under the plasma concentration versus time curve from time zero to the last measurable concentration

Relative bioavailability as assessed by rilzabrutinib AUC following administration of the test and reference formulations in the fasted state
Day 1 to Day 8

AUC: area under the plasma concentration versus time curve extrapolated to infinity

Secondary Endpoints

Relative bioavailability as assessed by rilzabrutinib Cmax following administration of the test and reference formulations in the fed state
Day 1 to Day 8
Relative bioavailability as assessed by rilzabrutinib AUClast following administration of the test and reference formulations in the fed state
Day 1 to Day 8
Relative bioavailability as assessed by rilzabrutinib AUC following administration of the test and reference formulations in the fed state
Day 1 to Day 8
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Treatment A: SAR444671 amorphous fastedACTIVE_COMPARATORParticipants will receive single oral dose of amorphous tablet formulation rilzabrutinib (SAR444671) under fasted conditions on Day 1 for one period
Treatment B: SAR444671 crystalline fastedEXPERIMENTALParticipants will receive single oral dose of crystalline tablet formulation rilzabrutinib (SAR444671) under fasted conditions on Day 1 for one period
Treatment C: SAR444671 amorphous fedACTIVE_COMPARATORParticipants will receive single oral dose of amorphous tablet formulation rilzabrutinib (SAR444671) under fed conditions on Day 1 for one period
Treatment D: SAR444671 crystalline fedEXPERIMENTALParticipants will receive single oral dose of crystalline tablet formulation rilzabrutinib (SAR444671) under fed conditions on Day 1 for one period

Interventions

NameTypeDescription
Rilzabrutinib crystalline formDRUGPharmaceutical form:Film coated tablet Route of administration:Oral
Rilzabrutinib amorphous formDRUGPharmaceutical form:Film coated tablet Route of administration:Oral
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Body weight between 50.0 and 100.0 kg, inclusive, if male, and between 40.0 and 90.0 kg, inclusive, if female, body mass index (BMI) between 18.0 and 32.0 kg/m2, inclusive * Laboratory parameters within the normal range, unless the Investigator considers an abnormality to be c...

Countries:United States
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Frequently asked questions about Rilzabrutinib crystalline form

What is Rilzabrutinib crystalline form used for?

Rilzabrutinib crystalline form is an investigational small molecule being developed by Sanofi for the treatment of autoimmune disorders. It is currently in Phase 1 clinical development. The drug has received Orphan Drug and Fast Track designations from the FDA, indicating its potential to address serious conditions with unmet medical needs.

What does Rilzabrutinib crystalline form target?

Rilzabrutinib crystalline form is a small molecule designed to treat autoimmune disorders. While the specific molecular target is not disclosed in the available information, the drug is being studied for its effects on the immune system. It has received Orphan Drug and Fast Track designations from the FDA for its potential in treating these conditions.

Who makes Rilzabrutinib crystalline form?

Rilzabrutinib crystalline form is developed by Sanofi, a global biopharmaceutical company listed on the stock exchange under the ticker SNY. Sanofi is conducting clinical trials to evaluate the drug's safety and efficacy in treating autoimmune disorders. The drug is currently in Phase 1 development.

What phase is Rilzabrutinib crystalline form in?

Rilzabrutinib crystalline form is in Phase 1 clinical development. It is an investigational drug being studied for the treatment of autoimmune disorders. The drug has received Orphan Drug and Fast Track designations from the FDA, but it is not yet approved for any use. Clinical trials are ongoing to assess its safety and efficacy.

What clinical trials is Rilzabrutinib crystalline form in?

Rilzabrutinib crystalline form has one completed Phase 1 clinical trial, NCT06342700, which studied the drug's food effect and relative bioavailability in healthy participants. The trial enrolled 28 participants in the United States and was active-controlled. The drug is being developed for autoimmune disorders and has received Orphan Drug and Fast Track designations.

Is Rilzabrutinib crystalline form the same as Rilzabrutinib?

Rilzabrutinib crystalline form is a specific crystalline form of the drug rilzabrutinib. The crystalline form is being developed by Sanofi for autoimmune disorders and is in Phase 1 clinical trials. The drug has received Orphan Drug and Fast Track designations from the FDA. The crystalline form may have different properties compared to other forms of rilzabrutinib.