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OTX015/Birabresib

Phase 1

Acute Myeloid Leukemia | Small molecule | Oncology |Merck & Company, Inc.|Last Updated: Jan 26, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment141
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01713582A Dose-finding Study of the Bromodomain (Brd) Inhibitor OTX015/ Birabresib (MK-8628) in Hematologic Malignancies (MK-8628-001)PHASE1 COMPLETED 141Dec 14, 2012Jan 20, 2017Jan 26, 2021 -
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Study Endpoints
Primary Endpoints
Number of Participants With Dose Limiting Toxicities (DLTs)
Cycle 1 (Up to 21 days)

A DLT was graded using the National Cancer Institute-Common Toxicity Criteria for Adverse Events (NCI-CTCAE) version 4.02 and defined as any of the following: grade 3 or 4 non-hematologic adverse events unless they were not optimally treated with supportive care; grade 3 or 4 asymptomatic laboratory abnormal values lasting \>7 days; prolonged grade 2 toxicity (lasting more than 2 weeks) leading to treatment interruption and/or dose reduction; pancytopenia with a hypocellular bone marrow and no marrow blasts lasting ≥6 weeks (AL participants); grade 3 neutropenia with fever or infection (OHM participants); grade 3 thrombocytopenia with bleeding (OHM participants); or grade 4 neutropenia or thrombocytopenia, regardless of symptoms and lasting ≥3 days (OHM participants).

Secondary Endpoints
Number of Participants Who Experienced at Least One Adverse Event (AE)
Up to 40 days after last dose of study therapy (Up to 28 months)
Number of Participants Who Discontinued Study Therapy Due to AEs
From time of first dose of study therapy until the end of treatment (up to 26 months)
Number of Participants Whose Best Response Was Partial Response (PR) or Complete Response (CR)
From time of first dose of study therapy until the end of treatment (up to 26 months)
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
AL 10 mg QD 14-21EXPERIMENTALParticipants received 10 mg birabresib/OTX015 administered orally (PO), once daily (QD), in a fasted state on Days 1 to 14 of a 21-day cycle.
AL 20 mg QD 14-21EXPERIMENTALParticipants received 20 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
AL 40 mg QD 14-21EXPERIMENTALParticipants received 40 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
AL 20 mg BID 21-21EXPERIMENTALParticipants received 20 mg birabresib/OTX015 administered PO, twice a day (BID), with the first daily dose in a fasted state, on Days 1 to 21 of a 21-day cycle.
AL 80 mg QD 14-21EXPERIMENTALParticipants received 80 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
AL 40 mg BID 14-21EXPERIMENTALParticipants received 40 mg birabresib/OTX015 administered PO, twice a day (BID), with the first daily dose in a fasted state, on Days 1 to 14 of a 21-day cycle.
AL 120 mg QD 14-21EXPERIMENTALParticipants received 120 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
AL 120 mg QD 21-21EXPERIMENTALParticipants received 120 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 21 of a 21-day cycle.
AL 160 mg QD 14-21EXPERIMENTALParticipants received 160 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
AML de novo 80 mg QD 14-21EXPERIMENTALParticipants received 80 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
AML/MDS 80 mg QD 14-21EXPERIMENTALParticipants received 80 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
OHM 10 mg QD 21-21EXPERIMENTALParticipants received 10 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 21 of a 21-day cycle.
OHM 20 mg QD 21-21EXPERIMENTALParticipants received 20 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 21 of a 21-day cycle.
OHM 40 mg QD 21-21EXPERIMENTALParticipants received 40 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 21 of a 21-day cycle.
OHM 80 mg QD 21-21EXPERIMENTALParticipants received 80 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 21 of a 21-day cycle.
OHM 40 mg BID 21-21EXPERIMENTALParticipants received 40 mg birabresib/OTX015 administered PO, BID, with the first daily dose in a fasted state, on Days 1 to 21 of a 21-day cycle.
OHM 120 mg QD 21-21EXPERIMENTALParticipants received 120 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 21 of a 21-day cycle.
OHM 120 mg QD 14-21EXPERIMENTALParticipants received 120 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
OHM 120 mg QD 5-7EXPERIMENTALParticipants received 120 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 5 of a 7-day cycle.
OHM 120 mg QD 7-21EXPERIMENTALParticipants received 120 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 7 of a 21-day cycle
OHM/DLBCL 80 mg QD 14-21EXPERIMENTALParticipants received 80 mg birabresib/OTX015 administered PO, QD, in a fasted state on Days 1 to 14 of a 21-day cycle.
Interventions
NameTypeDescription
OTX015/BirabresibDRUGOTX015/Birabresib 10 mg, 20 mg, or 40 mg capsules administered orally
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * Histologically or cytologically proven acute leukemias (AML or ALL) or hematologic malignancies (DLBCL or MM) using standard diagnosis criteria. Acute leukemia includes de novo and secondary to a pre-existing myelodysplastic syndrome, according to the World Health Organization...

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