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SAR445088

Phase 2

Chronic Inflammatory Demyelinating Polyradiculoneuropathy | Small molecule | Neurology |Sanofi|Last Updated: Oct 28, 2025

Success Probability

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment98

FDA Designations

No designations recorded

Clinical trial landscape

SAR445088 · 2 trials · 2 indications

Phase 2 2
NCT04658472Proof-of-concept Study for SAR445088 in Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)Chronic Inflammatory Demyelinating Polyradiculoneuropathy
COMPLETED98 Analytics
NCT04669600A Phase 2a Study Evaluating BIVV020 in Adults With Persistent/Chronic Immune Thrombocytopenia (ITP)Immune Thrombocytopenia (ITP)
COMPLETED12 Analytics
PHASE2COMPLETED
Proof-of-concept Study for SAR445088 in Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
Chronic Inflammatory Demyelinating PolyradiculoneuropathyUnlock trial analytics
PHASE2COMPLETED
A Phase 2a Study Evaluating BIVV020 in Adults With Persistent/Chronic Immune Thrombocytopenia (ITP)
Immune Thrombocytopenia (ITP)Unlock trial analytics

Study Endpoints

Primary Endpoints

Part A, SOC-Treated: Percentage of participants relapsing after withdrawal of SOC and during the SAR445088 treatment period
Day 1 up to 24 weeks

Relapse will be defined as ≥1-point increase in adjusted Inflammatory neuropathy cause and treatment (INCAT) disability score. The Investigator/rater will evaluate the level of impairment in participants? arms and legs each on a scale of 0 (least impaired) to 5 (most impaired), in the context of a neurological examination, and will record the added scores (range 0 to 10) per the INCAT reporting instructions. A low score reflects no or minimal disability eg, no arm dysfunction or walking normally, whereas higher scores indicate more disability eg, wheelchair bound or no purposeful arm movement.

Part A, SOC-Refractory (initial and low dose group) and SOC-Naive: Percentage of participants responding during the SAR445088 treatment period
Day 1 up to 24 weeks

Response will be defined as ≥1-point decrease in adjusted INCAT disability score. The Investigator/rater will evaluate the level of impairment in participants? arms and legs each on a scale of 0 (least impaired) to 5 (most impaired), in the context of a neurological examination, and will record the added scores (range 0 to 10) per the INCAT reporting instructions. A low score reflects no or minimal disability eg, no arm dysfunction or walking normally, whereas higher scores indicate more disability eg, wheelchair bound or no purposeful arm movement.

Part B: Number of participants reported with adverse events
Day 1 up to Week 98

Number of participants reported with adverse events during 76 weeks of treatment and 22 weeks of follow-up.

Percentage of Participants With a Durable Platelet Response
From Week 3 to Week 24

A naive participant was a participant who did not use sutimlimab prior to enrollment. A switcher was a participant who used sutimlimab prior to enrollment. A naive participant was a responder if the platelet count was \>=50 × 10\^9/liter (L) at \>=50 percent (%) of scheduled visits, or for participants with baseline platelet count \<15 × 10\^9/L, a \>=20 × 10\^9/L increase in platelet count from baseline at \>=50% of scheduled visits, without receiving rescue immune thrombocytopenia (ITP) therapy. A switcher was a responder if the maintenance platelet count was \>=30 × 10\^9/L at \>=50% of scheduled visits, without receiving rescue ITP therapy.

Secondary Endpoints

Part A: Number of participants reported with adverse events
Day 1 up to 46 Weeks
Part A: Number of participants with incidence and titer of anti-SAR445088 antibodies (ADA)
Day 1 up to 46 Weeks
Part A: Percentage of participants in the SOC-Treated group improving during the overlap treatment period
Day 1 up to 12 Weeks
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SOC-Refractory Initial DoseEXPERIMENTALPart A: Eligible participants will receive SAR445088 for 24 weeks. Participants who do not enroll into Part B will be asked to attend a final safety follow-up visit that will take place 22 weeks after Week 24 (approximately (\~)at Week 46). Part B: Participants who successfully complete Part A, will be reassessed for continuing eligibility and will be given the option of rolling into Part B, where they will continue receiving SAR445088 for an additional 52 weeks. At the end of the Part B treatment period, participants will be asked to attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose (approximately week 98) if they will not continue in Part C. Part C: Participants from Part B who enter Part C will continue receiving SAR445088 until the end of study. Participants who discontinue at any time during Part C will be asked to attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose.
SOC-Refractory Low DoseEXPERIMENTALPart A: Eligible participants will receive SAR445088 for 24 weeks. Participants who do not enroll into Part B will be asked to attend a final safety follow-up visit that will take place 22 weeks after Week 24 (approximately at Week 46). Part B: Participants who successfully complete Part A, will be reassessed for continued eligibility and will be given the option to roll into Part B, where they will continue receiving SAR445088 for an additional 52 weeks. At the end of the Part B treatment period, participants will be asked to attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose (approximately week 98) if they do not continue in Part C. Part C: Participants from Part B who enter Part C will continue receiving SAR445088 until the end of study. Participants who discontinue at any time during Part C will be asked to attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose.
SOC-Treated Initial DoseEXPERIMENTALPart A: Eligible participants will receive SAR445088 for 24 weeks. Weeks 1-12 (overlap period): Participants will be given SAR445088 with superimposing effects of SOC therapy; Weeks 13-24: SAR445088 given. Participants who do not enroll into Part B will attend final safety follow-up visit at 22 weeks after Week 24 (\~Week 46). Part B: Participants who successfully complete Part A, will be reassessed for continuing eligibility and will be given option of rolling into Part B, and continue receiving SAR445088 for 52 weeks. At the end of the Part B treatment period, participants will be asked to attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose (\~week 98) if they do not continue in Part C. Part C: Participants from Part B who enter Part C will continue receiving SAR445088 until end of study. Participants who discontinue at any time during Part C will be asked to attend a safety follow-up visit at 22 weeks after the last SAR445088 dose.
SOC-NaiveEXPERIMENTALPart A: Eligible participants will receive SAR445088 for 24 weeks. Participants who do not enroll into Part B will be asked to attend a final safety follow-up visit that will take place 22 weeks after Week 24 (approximately at Week 46). Part B: Participants who successfully complete Part A, will be reassessed for continuing eligibility and will be given the option of rolling into Part B, where they will continue receiving SAR445088 for an additional 52 weeks. At the end of the Part B treatment period, participants will be asked to attend a safety follow-up visit that will take place 22 weeks after last SAR445088 dose (approximately week 98) if they do not continue in Part C. Part C: Participants from Part B who enter Part C will continue receiving SAR445088 until the end of study. Participants who discontinue at any time during Part C will be asked to attend a safety follow-up visit that will take place 22 weeks after last SAR445088 dose.
SOC-Treated Low DoseEXPERIMENTALPart A: Eligible participants will receive SAR445088 for 24 weeks. Weeks 1-12 (overlap period): Participants will be given SAR445088 with superimposing effects SOC therapy; Weeks 13-24: SAR445088. Participants who do not enroll into Part B will attend a final safety follow-up visit that will take place 22 weeks after Week 24 (\~Week 46). Part B: Participants who successfully complete Part A, will be reassessed for continued eligibility, will be given the option of rolling into Part B, and continue receiving SAR445088 for 52 weeks. At the end of the Part B treatment period, participants will attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose (\~week 98) if they do not continue in Part C. Part C: Participants from Part B who enter Part C will continue receiving SAR445088 until end of study. Participants who discontinue at any time in Part C will attend a safety follow-up visit that will take place 22 weeks after the last SAR445088 dose.
SAR445088EXPERIMENTALParticipants received SAR445088 (BIVV020).

Interventions

NameTypeDescription
SAR445088 (IV)DRUGPharmaceutical form: Solution for Injection Route of Administration: Intravenous (IV)
SAR445088 (SC)DRUGPharmaceutical form: Solution for Injection Route of Administration: Subcutaneous (SC)
SAR445088 (BIVV020)DRUGPharmaceutical form:solution for injection
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites32

Inclusion Criteria: * Adults ≥18 years of age at the time of signing the informed consent. * Documented definite or probable diagnosis of CIDP (typical CIDP, pure motor CIDP, or Lewis-Sumner Syndrome) according to the European Federation of Neurological Societies (EFNS)/Peripheral Nerve Society (PN...

Countries:United StatesCanadaChinaFranceGermanyItalyNetherlandsPolandSerbiaSpainCzechiaUnited Kingdom
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Frequently asked questions about SAR445088

What is SAR445088 used for?

SAR445088 is an investigational small molecule being studied for chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and immune thrombocytopenia (ITP). It is in Phase 2 clinical development and is not approved by the FDA.

Who makes SAR445088?

SAR445088 is developed by Sanofi, a global biopharmaceutical company traded on the NASDAQ under the ticker SNY. The drug is currently in Phase 2 clinical trials for neurological and hematological conditions.

What phase is SAR445088 in?

SAR445088 is in Phase 2 clinical development. It has completed two Phase 2 trials, one in chronic inflammatory demyelinating polyradiculoneuropathy and one in immune thrombocytopenia. The drug remains investigational and is not FDA approved.

What clinical trials is SAR445088 in?

SAR445088 has completed two Phase 2 trials. NCT04658472 was a proof-of-concept study in chronic inflammatory demyelinating polyneuropathy with 98 participants. NCT04669600 was a Phase 2a study in persistent or chronic immune thrombocytopenia with 12 participants.

Is SAR445088 the same as BIVV020?

Yes, SAR445088 is also known as BIVV020. The Phase 2a trial in immune thrombocytopenia, NCT04669600, was conducted under the name BIVV020. Both names refer to the same investigational drug developed by Sanofi.