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rilzabrutinib SAR444671

Phase 1

Healthy Volunteers | Small molecule | Other |Sanofi|Last Updated: Sep 23, 2025

Success Probability

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment24

FDA Designations

ORPHAN_DRUGFAST_TRACK

Clinical trial landscape

rilzabrutinib SAR444671 · 1 trial · 1 indication

Phase 1 1
NCT04748926Food Effect and Relative Bioavailability Study of Rilzabrutinib in Healthy ParticipantsHealthy Volunteers
COMPLETED24 Analytics
PHASE1COMPLETED
Food Effect and Relative Bioavailability Study of Rilzabrutinib in Healthy Participants
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Study Endpoints

Primary Endpoints

Rilzabrutinib plasma PK parameters following administration of the reference formulation in the fed and fasted states: Cmax
From Day 1 to Day 7

maximun plasma concentration

Rilzabrutinib plasma PK parameters following administration of the reference formulation in the fed and fasted states: Tmax
From Day 1 to Day 7

time to maximum plasma concentration

Rilzabrutinib plasma PK parameters following administration of the reference formulation in the fed and fasted states: AUC0-last
From Day 1 to Day 7

area under the plasma concentration-time curve from zero to the last measurable concentration

Rilzabrutinib plasma PK parameters following administration of the reference formulation in the fed and fasted states: AUC0-inf
From Day 1 to Day 7

area under the plasma concentration-time curve from zero to infinity

Rilzabrutinib plasma PK parameters following administration of the reference formulation in the fed and fasted states: half-life
From Day 1 to Day 7

terminal elimination phase half-life

Rilzabrutinib plasma PK parameters following administration of two test formulations in the fasted state: Cmax
From Day 11 to Day 12

maximun plasma concentration

Rilzabrutinib plasma PK parameters following administration of two test formulations in the fasted state: Tmax
From Day 11 to Day 12

time to maximum plasma concentration

Rilzabrutinib plasma PK parameters following administration of two test formulations in the fasted state: AUC0-last
From Day 11 to Day 12

area under the plasma concentration-time curve from zero to the last measurable concentration

Rilzabrutinib plasma PK parameters following administration of two test formulations in the fasted state: AUC0-inf
From Day 11 to Day 12

area under the plasma concentration-time curve from zero to infinity

Rilzabrutinib plasma PK parameters following administration of two test formulations in the fasted state: half-life
From Day 11 to Day 12

terminal elimination phase half-life

Secondary Endpoints

Treatment-emergent AE and treatment-emergent SAE
Until Day 15
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeOTHER

Treatment Arms

ArmTypeDescription
Group 1EXPERIMENTALParticipants will receive caplets after fast (treatment A) on Day 1 and caplets after meal (treatment B) on day 6, and then receive either oral formulation 1 tablets after fast (treatment C) or oral formulation 2 tablets after fast (treatment D) on day 11.
Group 2EXPERIMENTALParticipants will receive caplets after meal (treatment B) on Day 1 and caplets after fast (treatment A) on day 6, and then receive either oral formulation 1 tablets after fast (treatment C) or oral formulation 2 tablets after fast (treatment D) on day 11.

Interventions

NameTypeDescription
rilzabrutinib SAR444671DRUGPharmaceutical form: caplet Route of administration: oral
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion criteria : \- Participants who are overtly healthy as determined by medical evaluation * Body mass index (BMI) within the range ≥18 and ≤31 kg/m2 (inclusive) and a minimum body weight of 45 kg. * Female participant is eligible to participate if she is not pregnant or breastfeeding * Male...

Countries:Australia
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Frequently asked questions about rilzabrutinib SAR444671

What is rilzabrutinib SAR444671 used for?

Rilzabrutinib SAR444671 is an investigational small molecule being studied in healthy volunteers. Its current clinical development focuses on evaluating the drug's properties in healthy participants rather than treating a specific disease. The drug is in Phase 1 clinical development and is not approved for any indication.

Who makes rilzabrutinib SAR444671?

Rilzabrutinib SAR444671 is being 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 pharmacokinetics in healthy volunteers.

What phase is rilzabrutinib SAR444671 in?

Rilzabrutinib SAR444671 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by regulatory authorities. The drug has received FDA designations including Orphan Drug and Fast Track, though it remains in early-stage clinical testing.

What clinical trials is rilzabrutinib SAR444671 in?

Rilzabrutinib SAR444671 has one completed Phase 1 clinical trial registered as NCT04748926, titled "Food Effect and Relative Bioavailability Study of Rilzabrutinib in Healthy Participants." This randomized, controlled study enrolled 24 healthy volunteers in Australia and evaluated the drug's food effect and relative bioavailability.

Is rilzabrutinib SAR444671 FDA approved?

No, rilzabrutinib SAR444671 is not FDA approved. It is an investigational drug currently in Phase 1 clinical development. While it has received Orphan Drug and Fast Track designations from the FDA, these designations do not indicate approval and the drug remains under clinical investigation.