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Trial · NCT02698176

A Dose Exploration Study With Birabresib (MK-8628) in Participants With Selected Advanced Solid Tumors (MK-8628-006)

NCT02698176, Phase 1, Terminated, Merck Sharp & Dohme LLC; results first posted 2018-11-05

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Dose Exploration Study With Birabresib (MK-8628) in Participants With Selected Advanced Solid Tumors (MK-8628-006). Trials, record NCT02698176. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02698176

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Dose Exploration Study With Birabresib (MK-8628) in Participants With Selected Advanced Solid Tumors (MK-8628-006)
NCT number
NCT02698176
Status
Terminated
Phases
Phase 1
Enrollment
13 participants, actual
Lead sponsor
Merck Sharp & Dohme LLC
Conditions
NUT Midline Carcinoma (NMC), Triple Negative Breast Cancer (TNBC), Non-small Cell Lung Cancer (NSCLC), Castration-resistant Prostate Cancer (CRPC)
Interventions
Birabresib
First posted
2016-03-03
Last updated
2021-01-27
Other registries' IDs
eudract:2015-005488-18
Results first posted
2018-11-05
Limitations and caveats
The study was terminated due to limited efficacy and not due to safety reasons. Due to limited PK sampling for t1/2, caution must be exercised when interpreting the results of t1/2, CL/F, and AUC 0-∞ values.

Source ClinicalTrials.gov

Registered outcomes13

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Participants Who Experienced a Dose Limiting Toxicity (DLT) During Cycle 1From time of first dose up to the end of the first cycle (up to 21 days)
A DLT was any of the following deemed drug related (DR) by investigator: Grade (G)4 hematologic toxicity lasting ≥7 days except thrombocytopenia; G4 thrombocytopenia; G3 thrombocytopenia with bleeding; G3 or 4 febrile neutropenia. G4 non-hematologic (NH) toxicity (not laboratory); G3 NH toxicity (not laboratory), nausea, vomiting, or diarrhea lasting \>3 days despite supportive care; G3 or 4 NH laboratory abnormality requiring medical intervention, hospitalization, or persisting \>1 week; alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \>8X Upper Limit of Normal(ULN); ALT or AST \>5XULN for \>2 weeks; ALT or AST \>3XULN and total bilirubin \>2XULN or international normalization ratio \>1.5; ALT or AST \>3XULN with fatigue, nausea, vomiting, right upper quadrant pain or tenderness, fever, rash and/or eosinophilia (\>5%); DR adverse event leading to discontinuation or \>20% missed planned doses in Cycle 1; DR toxicity causing \>2 week delay in starting Cycle 2; or G5 toxicity.
SecondaryNumber of Participants Who Experienced at Least One Adverse Event (AE)From time of first dose until the end of the 30-day follow-up (up to 25 months)
An AE was defined as any untoward medical occurrence in a participant administered a pharmaceutical product and which did not necessarily have to have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product/protocol-specified procedure, whether or not considered related to the medicinal product/protocol-specified procedure. Any worsening of a preexisting condition temporally associated with the use of the product was also an AE. The number of participants who experienced at least one AE is presented.
SecondaryNumber of Participants Who Discontinued Study Treatment Due to an AEFrom time of first dose until the end of treatment (up to 24 months)The number of participants who discontinued study treatment due to an AE is presented.
SecondaryObjective Response Rate (ORR)Assessed every 6 weeks from time of first dose until disease progression (up to 24 months)
ORR was defined as the percentage of the participants in the analysis population who had a Complete Response (CR: Disappearance of all target lesions Response Evaluation Criteria in Solid Tumors \[RECIST\] 1.1) or a Partial Response (PR: At least a 30% decrease in the sum of diameters of target lesions per RECIST 1.1) and lack of progression according to the guidelines for prostate cancer endpoints developed by Prostate Cancer Clinical Trials Working Group (PCWG) 2 as assessed by investigator radiologic review. The number of participants who achieved a CR or PR is presented.
SecondaryDuration of Response (DOR)Assessed every 6 weeks from time of first dose until disease progression (up to 24 months)
For participants who demonstrated CR or PR, DOR was defined as the time from first documented evidence of CR or PR per RECIST 1.1 until disease progression per RECIST 1.1 and PCWG2 or death due to any cause, whichever occurred first. Per RECIST 1.1, progressive disease was defined as at least a 20% increase in the sum of diameters of target lesions. In addition to the relative increase of 20%, the sum must also have demonstrated an absolute increase of at least 5 mm. Note: The appearance of one or more new lesions was also considered progression per RECIST 1.1. Per PCWG2, progressive disease was defined as a confirmed increase of at least two new lesions on a bone scan. DOR assessments were assessed by investigator radiologic review. The DOR for all participants who experienced a CR or PR is presented.
SecondaryDisease Control Rate (DCR)Assessed every 6 weeks from time of first dose until disease progression (up to 24 months)
DCR was defined as the number of subjects with CR, PR, or stable disease (SD) as assessed by investigator radiologic review according to RECIST version 1.1 and PCWG2. CR: defined as disappearance of all target and all non-target lesions and any pathological lymph nodes (whether target or non-target) must have reduction in short axis to less than \<10 mm per RECIST 1.1. PR: defined as at least a 30% decrease in sum of diameters of target lesions, taking as reference the baseline sum diameters along with absence of new lesions and disease progression in non-target lesions per RECIST 1.1. SD: defined as, neither sufficient shrinkage to qualify for PR, nor sufficient increase to qualify for PD, taking as reference the smallest sum diameters while on study per RECIST 1.1 and lack of a confirmed increase of at least two new lesions on a bone scan per PCWG2. The number of participants who experienced DCR is presented.
SecondaryObserved Maximum Concentration (Cmax) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdose
Blood samples were obtained at specified time points for the pharmacokinetic (PK) analysis of Cmax of MK-8628. MK-8628 concentrations were analyzed using ultra-performance liquid chromatography coupled with a tandem mass spectrometry. The Cmax of MK-8628 after oral administration is presented.
SecondaryObserved Minimum Concentration (Cmin) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdose
Blood samples were obtained at specified time points for the PK analysis of Cmin of MK-8628. MK-8628 concentrations were analyzed using ultra-performance liquid chromatography coupled with a tandem mass spectrometry. The Cmin of MK-8628 after oral administration is presented.
SecondaryTime to Maximum Concentration (Tmax) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdose
Blood samples were obtained at specified time points for the PK analysis of Tmax of MK-8628. MK-8628 concentrations were analyzed using ultra-performance liquid chromatography coupled with a tandem mass spectrometry. The Tmax of MK-8628 after oral administration is presented.
SecondaryApparent Terminal Half-Life (t1/2) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdose
Blood samples were obtained at specified time points for the PK analysis of t1/2 of MK-8628. MK-8628 concentrations were analyzed using ultra-performance liquid chromatography coupled with a tandem mass spectrometry. The t1/2 of MK-8628 after oral administration is presented.

Outcomes13

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants Who Experienced a Dose Limiting Toxicity (DLT) During Cycle 1From time of first dose up to the end of the first cycle (up to 21 days)Participants in Part A of the study that received at least 85% of the planned MK-8628 20 mg dose (18 days) or experienced a DLT during the first 21-day cycle.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants Who Experienced at Least One Adverse Event (AE)From time of first dose until the end of the 30-day follow-up (up to 25 months)Participants in Part A of the study that received at least 1 dose of MK-8628 20 mg. No participants were enrolled in Part B of the study.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Participants Who Discontinued Study Treatment Due to an AEFrom time of first dose until the end of treatment (up to 24 months)Participants in Part A of the study that received at least 1 dose of MK-8628 20 mg. No participants were enrolled in Part B of the study.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYObjective Response Rate (ORR)Assessed every 6 weeks from time of first dose until disease progression (up to 24 months)Participants in Part A of the study who received at least one dose of MK-8628 20 mg. No participants were enrolled in Part B of the study.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYDuration of Response (DOR)Assessed every 6 weeks from time of first dose until disease progression (up to 24 months)
Participants in Part A of the study who received at least one dose of MK-8628 20 mg. No participants were enrolled in Part B of the study. Since no participants experienced a CR or PR, DOR could not be calculated.
SECONDARYDisease Control Rate (DCR)Assessed every 6 weeks from time of first dose until disease progression (up to 24 months)Participants in Part A of the study who received at least one dose of MK-8628 20 mg. No participants were enrolled in Part B of the study.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYObserved Maximum Concentration (Cmax) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdoseTotal number of participants from all 3 cohorts (CRPC+NMC+TNBC) in Part A of the study that received at least 1 dose of MK-8628 20 mg and had data available for the PK parameter being analyzed.ng/mLMEAN
SECONDARYObserved Minimum Concentration (Cmin) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdoseTotal number of participants from all 3 cohorts (CRPC+NMC+TNBC) in Part A of the study that received at least 1 dose of MK-8628 20 mg and had data available for the PK parameter being analyzed.ng/mLMEAN
SECONDARYTime to Maximum Concentration (Tmax) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdoseTotal number of participants from all 3 cohorts (CRPC+NMC+TNBC) in Part A of the study that received at least 1 dose of MK-8628 20 mg and had data available for the PK parameter being analyzed.hoursMEDIAN
SECONDARYApparent Terminal Half-Life (t1/2) of MK-8628Cycle1/Day 1: predose, 20 minutes, 1 hour, 2.25 hours (hrs), 3.25 hrs, 8 hrs, and 12 hrs postdoseTotal number of participants from all 3 cohorts (CRPC+NMC+TNBC) in Part A of the study that received at least 1 dose of MK-8628 20 mg and had data available for the PK parameter being analyzed.hoursMEAN

Results by group22

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Participants Who Experienced a Dose Limiting Toxicity (DLT) During Cycle 1MK-8628 20 mg CRPC Cohort-Part A2Participants
Number of Participants Who Experienced a Dose Limiting Toxicity (DLT) During Cycle 1MK-8628 20 mg NMC Cohort-Part A1Participants
Number of Participants Who Experienced a Dose Limiting Toxicity (DLT) During Cycle 1MK-8628 20 mg TNBC Cohort-Part A0Participants
Number of Participants Who Experienced at Least One Adverse Event (AE)MK-8628 20 mg CRPC Cohort-Part A9Participants
Number of Participants Who Experienced at Least One Adverse Event (AE)MK-8628 20 mg NMC Cohort-Part A3Participants
Number of Participants Who Experienced at Least One Adverse Event (AE)MK-8628 20 mg TNBC Cohort-Part A1Participants
Number of Participants Who Discontinued Study Treatment Due to an AEMK-8628 20 mg CRPC Cohort-Part A2Participants
Number of Participants Who Discontinued Study Treatment Due to an AEMK-8628 20 mg NMC Cohort-Part A0Participants
Number of Participants Who Discontinued Study Treatment Due to an AEMK-8628 20 mg TNBC Cohort-Part A0Participants
Objective Response Rate (ORR)MK-8628 20 mg CRPC Cohort-Part A0Participants

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDMK-8628 20 mg CRPC Cohort-Part A9
Overall StudySTARTEDMK-8628 20 mg NMC Cohort-Part A3
Overall StudySTARTEDMK-8628 20 mg TNBC Cohort-Part A1
Overall StudySTARTEDNMC Cohort-Part B0
Overall StudyCOMPLETEDMK-8628 20 mg CRPC Cohort-Part A0
Overall StudyCOMPLETEDMK-8628 20 mg NMC Cohort-Part A0
Overall StudyCOMPLETEDMK-8628 20 mg TNBC Cohort-Part A0
Overall StudyCOMPLETEDNMC Cohort-Part B0
Overall StudyNOT COMPLETEDMK-8628 20 mg CRPC Cohort-Part A9
Overall StudyNOT COMPLETEDMK-8628 20 mg NMC Cohort-Part A3

Adverse events195

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersMK-8628 20 mg CRPC Cohort-Part A292
otherAnaemiaBlood and lymphatic system disordersMK-8628 20 mg NMC Cohort-Part A030
otherAnaemiaBlood and lymphatic system disordersMK-8628 20 mg TNBC Cohort-Part A010
otherLeukocytosisBlood and lymphatic system disordersMK-8628 20 mg CRPC Cohort-Part A191
otherLeukocytosisBlood and lymphatic system disordersMK-8628 20 mg NMC Cohort-Part A030
otherLeukocytosisBlood and lymphatic system disordersMK-8628 20 mg TNBC Cohort-Part A010
otherLeukopeniaBlood and lymphatic system disordersMK-8628 20 mg CRPC Cohort-Part A090
otherLeukopeniaBlood and lymphatic system disordersMK-8628 20 mg NMC Cohort-Part A030
otherLeukopeniaBlood and lymphatic system disordersMK-8628 20 mg TNBC Cohort-Part A111
otherThrombocytopeniaBlood and lymphatic system disordersMK-8628 20 mg CRPC Cohort-Part A292

Adverse event totals9

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityMK-8628 20 mg CRPC Cohort-Part A09
Total, all-cause mortalityMK-8628 20 mg NMC Cohort-Part A03
Total, all-cause mortalityMK-8628 20 mg TNBC Cohort-Part A01
Total, other adverse eventsMK-8628 20 mg CRPC Cohort-Part A99
Total, other adverse eventsMK-8628 20 mg NMC Cohort-Part A33
Total, other adverse eventsMK-8628 20 mg TNBC Cohort-Part A11
Total, serious adverse eventsMK-8628 20 mg CRPC Cohort-Part A39
Total, serious adverse eventsMK-8628 20 mg NMC Cohort-Part A23
Total, serious adverse eventsMK-8628 20 mg TNBC Cohort-Part A01

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT02698176

GET https://conductscience.org/api/trials/v1/NCT02698176/results?page=2