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Mocetinostat

Phase 2

Myelodysplastic Syndrome | Small Molecules | Oncology |Bristol-Myers Squibb Company|Trials Updated: Jul 17, 2026

Mocetinostat development status

Highest phase Phase 2 (NCT02236195)
Phase scored for BMYPhase 1/2
Registered trials 16 across 4 sponsors since May 2006

Mocetinostat target and mechanism

Molecular targetHDAC11, HDAC3, HDAC1, HDAC2, HDAC8
Target classInhibitor
ModalitySmall Molecules

Also known as MGCD0103

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials10
Total Enrollment353

FDA Designations

No designations recorded

Mocetinostat clinical trials

Mocetinostat · 10 trials · 10 indications

Phase 2 3Phase 1/2 3Phase 1 4
NCT02236195Study of Mocetinostat in Patients With Urothelial Carcinoma Having Inactivating Alterations of Specific GenesUrothelial Carcinoma
COMPLETED17 Analytics
NCT00431873A Phase II Study of MGCD0103 (MG-0103) in Patients With Refractory Chronic Lymphocytic LeukemiaLymphocytic Leukemia, Chronic
COMPLETED21 Analytics
NCT00359086Study of MGCD0103 Given Three Times Weekly in Patients With Relapsed and Refractory LymphomaLymphoma
COMPLETED74 Analytics
PHASE2COMPLETED
Study of Mocetinostat in Patients With Urothelial Carcinoma Having Inactivating Alterations of Specific Genes
Urothelial CarcinomaUnlock trial analytics
PHASE2COMPLETED
A Phase II Study of MGCD0103 (MG-0103) in Patients With Refractory Chronic Lymphocytic Leukemia
Lymphocytic Leukemia, ChronicUnlock trial analytics
PHASE2COMPLETED
Study of MGCD0103 Given Three Times Weekly in Patients With Relapsed and Refractory Lymphoma
LymphomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of patients experiencing tumor size reduction
Up to 4 months

Tumors will be measured using radiographic scans. Tumor size reduction and overall disease response will be categorized according to the Response Evaluation Criteria In Solid Tumors (RECIST 1.1).

Response rate
1 year (anticipated)
Number of subjects with adverse events, including pericardial events, as a measure of safety
6 months
Maximum tolerated dose in combination with azacitidine
1 year (anticipated)
Clinical response
1 year (anticipated)
To describe any dose-limiting toxicity (DLT)
1 year

Percentage of subjects with dose-limiting toxicities (DLTs) as assessed by NCI CTCAE (Version 4.03)

To determine the maximum tolerated dose (MTD) or highest protocol defined doses (in the absence of exceeding the MTD)
1 year

The MTD is the highest dose associated with first-cycle DLT in \< 33% of subjects

Safety and tolerability
1 year (anticipated)
Pharmacokinetics
1 year (anticipated)
Safety and tolerability.
1 year (anticipated)

Secondary Endpoints

Number of patients experiencing adverse events
Up to 12 months
Peak blood plasma concentration of mocetinostat
Up to 48 hours
Duration of objective response
1 year (anticipated)
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
MocetinostatEXPERIMENTALMocetinostat (MGCD0103) oral capsules three times weekly, 70 mg doses in first month, with increase to 90 mg doses if tolerated
1EXPERIMENTALMGCD0103 administered orally three times per week.
Mocetinostat and azacitidineEXPERIMENTALDrug: Mocetinostat (MGCD0103) Mocetinostat (a histone deacetylase \[HDAC\] inhibitor) 70 mg or 90 mg dose, oral capsules 3 times weekly beginning on day 5 for 10 doses in each 28 day cycle Drug: Azacitidine (Vidaza) Azacitidine (a hypomethylating agent \[HMA\]) 75 mg/m2 dose, by intravenous (IV) infusion or subcutaneous (SC) injection beginning on day 1 for 7 doses in each 28 day cycle
Treatment (vinorelbine, mocetinostat)EXPERIMENTALParticipants receive mocetinostat in combination with vinorelbine

Interventions

NameTypeDescription
MocetinostatDRUG -
MGCD0103DRUGMGCD0103 Administered orally three times per week.
AzacitidineDRUGAzacitidine (a hypomethylating agent \[HMA\]) 75 mg/m2 dose, by intravenous (IV) infusion or subcutaneous (SC) injection beginning on day 1 for 7 doses in each 28 day cycle
GemcitabineDRUGGemcitabine 1000mg/m\<2\> intravenously days 1, 8, 15 of a 28 day cycle.
VinorelbineDRUGGiven IV
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites14

Inclusion Criteria: * Diagnosis of urothelial carcinoma * Metastatic or locally advanced disease * Prior chemotherapy that included a platinum agent * Test results showing genetic change in tumor gene for CREBBP and/or EP300 * At least one tumor that can be measured Exclusion Criteria: * Uncontro...

Countries:United StatesCanada
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Frequently asked questions about Mocetinostat

What is Mocetinostat used for?

Mocetinostat is an investigational small molecule being studied for the treatment of Myelodysplastic Syndrome, Urothelial Carcinoma, and Rhabdomyosarcoma. It is in clinical development for these oncology indications, though it is not yet approved by the FDA.

What does Mocetinostat target?

Mocetinostat targets HDAC11, HDAC3, HDAC1, HDAC2, and HDAC8. It is an inhibitor of these histone deacetylase enzymes, which are involved in gene expression regulation and are relevant in cancer biology.

Who makes Mocetinostat?

Mocetinostat is being developed by Bristol-Myers Squibb Company, which trades under the ticker BMY. The company is conducting clinical trials to evaluate the drug's safety and efficacy in various cancer types.

What phase is Mocetinostat in?

Mocetinostat is in Phase 1 and Phase 2 clinical trials. It is an investigational drug still in clinical development and has not received FDA approval. The trials are studying its use in Myelodysplastic Syndrome, Urothelial Carcinoma, and Rhabdomyosarcoma.

What clinical trials is Mocetinostat in?

Mocetinostat has been studied in three clinical trials. NCT02018926 is a Phase 1 study in Myelodysplastic Syndrome, NCT02236195 is a Phase 2 study in Urothelial Carcinoma, and NCT04299113 is a Phase 1 study in Rhabdomyosarcoma. All are based in the United States.