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Epacadostat

Phase 1

Neoplasms | Small molecule | Oncology |Merck & Company, Inc.|Last Updated: Aug 19, 2022

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment34

FDA Designations

No designations recorded

Clinical trial landscape

Epacadostat · 1 trial · 2 indications

Phase 1 1
NCT02862457Study of Epacadostat (INCB024360) Alone and In Combination With Pembrolizumab (MK-3475) With Chemotherapy and Pembrolizumab Without Chemotherapy in Participants With Advanced Solid Tumors (MK-3475-434)Neoplasms
COMPLETED34 Analytics
PHASE1COMPLETED
Study of Epacadostat (INCB024360) Alone and In Combination With Pembrolizumab (MK-3475) With Chemotherapy and Pembrolizumab Without Chemotherapy in Participants With Advanced Solid Tumors (MK-3475-434)
NeoplasmsUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants Experiencing Dose-Limiting Toxicities (DLTs) According to National Cancer Institute Common Terminology Criteria for Adverse Events Version 4.0 (NCI-CTCAE v.4.0)
Up to Day 7 for Part A Cohort 1; up to Day 21 for Part A Cohort 2 and Part B

A DLT was defined as the occurrence of any treatment-emergent adverse event occurring up to and including Study Day 7 for Part A Cohort 1 or Day 21 for Part A Cohort 2 and Part B. The following criteria defined DLTs: Grade (G) 4 thrombocytopenia; G4 neutropenia (despite optimal supportive care in Part B) lasting \>1 week; febrile neutropenia (only if considered clinically significant in Part B); G4 toxicity; G3 laboratory abnormality lasting \>1 week: G3 toxicity excluding nausea or vomiting controlled within 72 hours, rash in the absence of desquamation, no mucosal involvement, does not require systemic steroids, and resolves to G1 by the next scheduled dose of pembrolizumab or 14 days; G2 or higher episcleritis, uveitis, or iritis; unable to receive 75% of epacadostat or 1 dose of pembrolizumab during the DLT observation period because of toxicity, even if the toxicity does not meet DLT criteria; or \>2 week delay in initiating Cycle 2 due to toxicity.

Number of Participants Who Experienced At Least One Adverse Event (AE)
Up to approximately 39.7 months

An adverse event is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An adverse event can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that is temporally associated with the use of the Sponsor's product, is also an adverse event. The number of participants who experienced an AE was reported for each arm.

Number of Participants Who Discontinued Study Treatment Due to An Adverse Event (AE)
Up to approximately 38.5 months

An adverse event is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with this treatment. An adverse event can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the medicinal product or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a preexisting condition that is temporally associated with the use of the Sponsor's product, is also an adverse event. The number of participants who discontinued due to an AE was reported for each arm.

Secondary Endpoints

Maximum Concentration (Cmax) of Epacadostat in Part A
Cycle 1 (28-day cycle): Days 1, 5, and 12 at predose and 0.5, 1, 2, 4, 6, 8 and 10 hours postdose
Time to Maximum Concentration (Tmax) of Epacadostat in Part A
Cycle 1 (28-day cycle): Days 1, 5, and 12 at predose and 0.5, 1, 2, 4, 6, 8 and 10 hours postdose
Area Under the Concentration-Time Curve From Zero to the Time of the Last Measurable Concentration (AUC0-t) of Epacadostat in Part A
Cycle 1 (28-day cycle): Days 1, 5, and 12 at predose and 0.5, 1, 2, 4, 6, 8 and 10 hours postdose
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A Cohort 1: epacadostat 25 mgEXPERIMENTALParticipants received 25 mg of epacadostat orally twice daily (BID) alone on Days 1-5 of Cycle 1 (28-day cycle) with a washout on Days 6 and 7. On Day 8 participants received a one-time intravenous (IV) infusion of 200 mg pembrolizumab while continuing to receive 25 mg of epacadostat BID on Days 8-28. For each 21-day cycle thereafter, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and received 25 mg of epacadostat BID on Days 1-21 for up to 35 cycles (approximately 2 years).
Part A Cohort 1: epacadostat 100 mgEXPERIMENTALParticipants received 100 mg of epacadostat orally BID alone on Days 1-5 of Cycle 1 (28-day cycle) with a washout on Days 6 and 7. On Day 8 participants received a one-time IV infusion of 200 mg pembrolizumab while continuing to receive 100 mg of epacadostat BID on Days 8-28. For each 21-day cycle thereafter, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and received 100 mg of epacadostat BID on Days 1-21 for up to 35 cycles (approximately 2 years).
Part A Cohort 2: epacadostat 25 mg+pembrolizumabEXPERIMENTALFor each 21-day cycle, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and received 25 mg of epacadostat orally BID on Days 1-21 for up to 35 cycles (approximately 2 years).
Part A Cohort 2: epacadostat 100 mg+pembrolizumabEXPERIMENTALFor each 21-day cycle, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and received 100 mg of epacadostat orally BID on Days 1-21 for up to 35 cycles (approximately 2 years).
Part B Cohort 1: pembrolizumab+cisplatin+pemetrexedEXPERIMENTALFor each 21-day cycle, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and 100 mg of epacadostat orally BID on Days 1-21 for up to 35 cycles (approximately 2 years). For the first 4 cycles, participants also received a one-time IV infusion of 75 mg/m\^2 cisplatin and 500 mg/m\^2 pemetrexed on Day 1. Treatment with epacadostat was stopped with protocol amendment 02.
Part B Cohort 2: pembrolizumab+carboplatin+pemetrexedEXPERIMENTALFor each 21-day cycle, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and 100 mg of epacadostat orally BID on Days 1-21 for up to 35 cycles (approximately 2 years). For the first 4 cycles, participants also received a one-time IV infusion of Area Under the Curve (AUC) 5 carboplatin and 500 mg/m\^2 pemetrexed on Day 1. Treatment with epacadostat was stopped with protocol amendment 02.
Part B Cohort 3: pembrolizumab+carboplatin+paclitaxelEXPERIMENTALFor each 21-day cycle, participants received a one-time IV infusion of 200 mg pembrolizumab on Day 1 and 100 mg of epacadostat orally BID on Days 1-21 for up to 35 cycles (approximately 2 years). For the first 4 cycles, participants also received a one-time IV infusion of AUC 6 carboplatin and 200 mg/m\^2 paclitaxel on Day 1. Treatment with epacadostat was stopped with protocol amendment 02.

Interventions

NameTypeDescription
Epacadostat 25 mgDRUGOral administration
Epacadostat 100 mgDRUGOral administration
pembrolizumab 200 mgBIOLOGICALIntravenous (IV) infusion
Cisplatin 75 mg/m^2DRUGIV infusion
Carboplatin Area Under the Curve (AUC) 5DRUGIV infusion
Pemetrexed 500 mg/m^2DRUGIV infusion
Paclitaxel 200 mg/m^2DRUGIV infusion
Carboplatin AUC 6DRUGIV infusion
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Eligibility Criteria

Age Range20 Years to N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * For Part A: Has a histologically-confirmed metastatic or locally advanced solid tumor that has failed to respond to standard therapy, progressed despite standard therapy, or for which standard therapy does not exist. * For Part B: Has a histologically-confirmed or cytologicall...

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Frequently asked questions about Epacadostat

What is Epacadostat used for?

Epacadostat is an investigational small molecule being studied for the treatment of neoplasms, including carcinoma and non-small-cell lung cancer. It is being evaluated in oncology as a potential therapy for advanced solid tumors.

Who makes Epacadostat?

Epacadostat is being developed by Merck & Company, Inc., which trades under the ticker MRK. The company is conducting clinical research to evaluate the drug's safety and efficacy in oncology.

What phase is Epacadostat in?

Epacadostat is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The drug is being studied in early-stage trials to assess its safety and tolerability.

What clinical trials is Epacadostat in?

Epacadostat has been studied in a Phase 1 clinical trial with the identifier NCT02862457. This trial evaluated the drug alone and in combination with pembrolizumab and chemotherapy in participants with advanced solid tumors. The trial has been completed.

Is Epacadostat the same as INCB024360?

Yes, Epacadostat is also known as INCB024360. The clinical trial NCT02862457, which studied the drug, refers to it as Epacadostat (INCB024360) in its title.