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SAR302503

Phase 3

Hematopoietic Neoplasm | Small molecule | Oncology |Bristol-Myers Squibb Company|Trials Updated: Oct 6, 2026

SAR302503 development status

Highest phase Phase 3 (NCT01437787)
Phase scored for BMYPhase 2
Registered trials 8 across 1 sponsor since Aug 2011

SAR302503 target and mechanism

ModalitySmall molecule

Also known as SAR302503 (TG101348)

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials8
Total Enrollment291

FDA Designations

No designations recorded

SAR302503 clinical trials

SAR302503 · 8 trials · 6 indications

Phase 2 3Phase 1 5
NCT01692366Phase 2 Study in Japanese Patients With Intermediate-2 or High Risk Primary Myelofibrosis, Post-Polycythemia Vera Myelofibrosis, Post-Essential Thrombocythemia Myelofibrosis With SplenomegalyMyelofibrosis
COMPLETED8 Analytics
NCT01420783Study With SAR302503 in Patients With Polycythemia Vera or Essential ThrombocythemiaHematopoietic Neoplasm
COMPLETED81 Analytics
NCT01420770Phase 2 Study of SAR302503 in Patients With MyelofibrosisHematopoietic Neoplasm
COMPLETED30 Analytics
PHASE2COMPLETED
Phase 2 Study in Japanese Patients With Intermediate-2 or High Risk Primary Myelofibrosis, Post-Polycythemia Vera Myelofibrosis, Post-Essential Thrombocythemia Myelofibrosis With Splenomegaly
MyelofibrosisUnlock trial analytics
PHASE2COMPLETED
Study With SAR302503 in Patients With Polycythemia Vera or Essential Thrombocythemia
Hematopoietic NeoplasmUnlock trial analytics
PHASE2COMPLETED
Phase 2 Study of SAR302503 in Patients With Myelofibrosis
Hematopoietic NeoplasmUnlock trial analytics

Study Endpoints

Primary Endpoints

Response Rate (RR), defined as the proportion of subjects who have a ≥35% reduction as measured by MRI (or CT scan in subjects with contraindications for MRI). - Time Frame:
24 weeks
Dose Ranging Phase: Proportion of PV patients with absence of phlebotomy and hematocrit below 45% and proportion of ET patients with a platelet count ≤ 400 x 10x9/L for a minimum of 3 months during the first 8 cycles of therapy.
2 years
PV Dose Expansion Phase: Proportion of PV patients with absence of phlebotomy eligibility beginning at Day 1 of Cycle 4 visit and continuing through Day 1 of Cycle 6 visit.
2 years
ET Dose Ranging Phase (only 600 mg dose group): Proportion of ET patients with a platelet count ≤400 x 10x9/L beginning at Day 1 of Cycle 4 visit and continuing through Day 1 of Cycle 6 visit.
2 years
The percent change in spleen volume based on MRI at the end of Cycle 3 relative to baseline
1 year
QTc Friderica (QTcF) parameter
16 days
Pharmacokinetic parameter: Cmax, AUClast and AUC
12 days
Omerprazole/metoprolol/midazolam - Pharmacokinetic parameter: AUC, AUClast
predose and up to 24 hours post dose on Days -1, 1, 15 and 16
Clinical Response (IWG-MRT) - Best Overall Response
From enrollment to date of first objective response, or death due to any cause (up to approximately 52 months)

Best response categories per IWG-MRT response criteria across studies TED12037 and TED12015 combined. Responses were assessed using IWG-MRT criteria and categorized as complete remission (CR), partial remission (PR), clinical improvement (CI), stable disease (SD), or progressive disease (PD). CR and PR reflect disease modification with resolution or partial resolution of disease features; CI reflects improvement in key clinical parameters without full remission; SD indicates no meaningful change; and PD indicates disease worsening.

Secondary Endpoints

Number of patients with Serious Adverse events using NCI CTCAE v4.03, clinical parameters and vital signs
From baseline to the 30 days after last drug administration
Measurements of SAR302503 pharmacokinetic endpoints including Cmax, Tmax, and AUC0-24
SAR302503, pre-dose and post-dose plasma collections will be obtained on Cycle 1 Day 1, Cycle 1 Day 2, Cycle 1 Day 15, Cycle 2 Day 1, Cycle 2 Day 2, and Cycle 3 Day 1
Symptom Response Rate (SRR): Proportion of subjects with a ≥50% reduction in the total symptom score using the modified MFSAF
24 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SAR302503 300mgEXPERIMENTALSAR302503 will be self-administered, orally, once daily, as a single agent, in consecutive, 28-day cycles at the dose level of 300mg. SAR302503 will be taken on an empty stomach at approximately the same time each day
SAR302503 400 mgEXPERIMENTALSAR302503 will be self-administered, orally, once daily, as a single agent, in consecutive, 28-day cycles at the dose level of 400 mg. SAR302503 will be taken on an empty stomach at approximately the same time each day
SAR302503 500 mgEXPERIMENTALSAR302503 will be self-administered, orally, once daily, as a single agent, in consecutive, 28-day cycles at the dose level of 500 mg. SAR302503 will be taken on an empty stomach at approximately the same time each day
SAR302503 100 mgEXPERIMENTALonce daily X 28 days
SAR302503 200 mgEXPERIMENTALonce daily X 28 days
SAR302503 600 mgEXPERIMENTALonce daily X 28 days
SAR02503 300 mg qdEXPERIMENTALdaily X 28 days
SAR302503 400 mg qdEXPERIMENTALdaily X 28 days
SAR302503 500 mg qdEXPERIMENTALdaily X 28 days
Single-sequenceEXPERIMENTALSAR302503 Placebo (1 day)-SAR302503 (500 mg, oral, qd, 14 days)
SAR302503EXPERIMENTALsingle treatment with oral dose up to 300 mg of SAR302503
Segment 1EXPERIMENTALtwo single doses of omeprazol/metoprolol/midazolam on day-1 and day 15 without food, SAR302503 500 mg once daily without food for 15 days
Segment 2EXPERIMENTALSAR302503 500 mg once daily without food in 28-day per cycle
1EXPERIMENTAL -

Interventions

NameTypeDescription
SAR302503DRUGPharmaceutical form:Capsule Route of administration: oral
SAR302503 (TG101348)DRUGPharmaceutical form:capsule Route of administration: oral
Placebo SAR302503DRUGPharmaceutical form:capsule Route of administration: oral
PanolosetronDRUGPharmaceutical form:solution Route of administration: intravenous
omeprazolDRUGPharmaceutical form:capsule Route of administration: oral
metoprololDRUGPharmaceutical form:tablet Route of administration: oral
midazolamDRUGPharmaceutical form:solution Route of administration: oral
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Eligibility Criteria

Age Range20 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion criteria : * Diagnosis of primary or post-polycythemia vera or post-essential thrombocythemia myelofibrosis * Myelofibrosis classified as high-risk or intermediate-risk level 2 * Enlarged spleen, palpable at least 5 cm below costal margin * Active symptoms of myelofibrosis * At least 20 y...

Countries:JapanUnited StatesAustraliaCanadaFranceGermanyItalySouth KoreaSpainUnited KingdomBelgium
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Frequently asked questions about SAR302503

What is SAR302503 used for?

SAR302503 is an investigational small molecule studied in oncology for myelofibrosis and other hematopoietic neoplasms, as well as solid tumors. It has also been evaluated in pharmacokinetic studies in patients with renal impairment and hepatic impairment. It is not approved and remains in clinical development.

Who is developing SAR302503?

SAR302503 is being developed by Bristol-Myers Squibb Company, which trades under the ticker BMY. The company is the sponsor of the clinical trials evaluating the drug in myelofibrosis, solid tumors, and organ impairment populations.

What phase is SAR302503 in?

SAR302503 is in Phase 2 development. The highest phase among its completed trials is a Phase 2 study in Japanese patients with intermediate-2 or high risk primary myelofibrosis, post-polycythemia vera myelofibrosis, or post-essential thrombocythemia myelofibrosis with splenomegaly.

Is SAR302503 the same as TG101348?

Yes, SAR302503 is also known as TG101348. Both names refer to the same investigational small molecule developed by Bristol-Myers Squibb. Searches for either name point to the same drug candidate and its clinical program.

What clinical trials is SAR302503 in?

SAR302503 has been studied in completed trials including NCT01692366, a Phase 2 study in Japanese patients with myelofibrosis; NCT01836705, a Phase 1 ECG study in solid tumors; NCT01763190, a Phase 1 pharmacokinetic study in renal impairment; and NCT01762462, a Phase 1 pharmacokinetic study in hepatic impairment.

Is SAR302503 FDA approved?

SAR302503 is not approved and remains an investigational drug in clinical development. Its trials are listed as completed, and no regulatory approval has been granted for any indication. It has been studied in myelofibrosis, solid tumors, renal impairment, and hepatic impairment.