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Dose-escalation Study of Birinapant and Pembrolizumab in Solid Tumors

A Phase 1/2 Multicenter, Single-Arm, Open-Label, Dose-Escalation Study of Birinapant in Combination With Pembrolizumab (KEYTRUDA®) in Patients With Relapsed or Refractory Solid Tumors

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02587962
Enrollment
34
Registered
2015-10-27
Start date
2017-08-04
Completion date
2020-02-17
Last updated
2021-01-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Solid Tumors

Brief summary

An ascending dose study in patients with solid tumors to evaluate the safety, tolerability, pharmacodynamics and efficacy of birinapant when given in combination with pembrolizumab. A dose expansion phase of 4 cohorts will also be included.

Detailed description

This study will be conducted in two phases. The Phase 1 portion of the study will employ a sequential group dose-escalation design to determine the dose-limiting toxicity (DLT) and recommended Phase 2 dose (RP2D) of birinapant administered in combination with 200 mg pembrolizumab, both administered as a 30-minute intravenous (IV) infusion. The following proposed doses of birinapant are to be evaluated: 5.6, 11, 17, and 22 mg/m2. The Phase 2 portion, the dose expansion phase, will compromise 4 cohorts of 26-30 patients. The 4 cohorts will include the following: * Colorectal cancer * Ovarian Cancer * Cervical cancer * Various solid tumors (30 patients, including 5 patients with each of the following 6 tumor types: Head and Neck Squamous Cell Carcinoma (HNSCC)-checkpoint-inhibitor naïve; and HNSCC checkpoint-inhibitor experienced; Gastroesophageal carcinoma; Mesothelioma; Small cell lung cancer (SCLC); Cholangiocarcinoma A Simon's 2-stage design will be used for each of the cohorts in colorectal cancer, ovarian cancer and cervical cancer. A predefined interim analysis allowing stopping each of these cohorts for futility and safety will be conducted in the first stage to limit undue exposure before further inclusion into a given cohort. The design of the various solid tumors cohort will limit undue exposure in any of the selected tumor types by limiting the number of enrolled patient to five in each tumor type.

Interventions

Birinapant intravenous (IV) on Days 1 and 8 of each 21-Day Cycle. The following escalating doses of birinapant to be studied: 5.6, 11, 17, and 22 mg/m2. In the expansion phase the assigned recommended phase two dose will be administered in all cohorts

DRUGPembrolizumab

200 mg pembrolizumab IV on Day 1 of each 21-Day Cycle

Sponsors

Merck Sharp & Dohme LLC
CollaboratorINDUSTRY
Medivir
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histologically confirmed solid malignancy that is metastatic or unresectable for which standard curative or palliative measures do not exist or are no longer effective (Dose Escalation phase only) * Measurable disease according to response evaluation criteria in solid tumors (RECIST) v 1.1 * Eastern Cooperative Oncology Group (ECOG) score of 0 or 1 * Normal organ and marrow function Dose Expansion phase specific additional inclusion criteria: * Patients with metastatic colorectal cancer with no available therapy options that are known to provide clinical benefit per institutional standard of care (colorectal cancer cohort only) * Patients must have a histologically confirmed epithelial ovarian cancer, primary peritoneal cancer or fallopian tube solid tumor cancer that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care (ovarian cancer cohort only) * Patients must have histologically or cytologically confirmed cervical squamous cell carcinoma that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care (cervical cancer cohort only) * Patients must have histologically or cytologically confirmed head and neck squamous cell carcinoma that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care. (various solid tumors cohort: head and neck squamous cell carcinoma groups only). * Patients must have received prior therapy with an anti-programmed death protein (PD-1) or anti-PD-ligand 1(L1) antibody, or previously participated in Merck MK 3475 clinical trials. Patients must have experienced documented, confirmed radiographic progression of disease by immune RECIST (iRECIST), or by RECIST v1.1 (various solid tumors cohort head and neck squamous cell carcinoma, Check point inhibitor experienced group only). * Patients must have histologically or cytologically confirmed small cell lung carcinoma (SCLC) that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care (various solid tumors cohort, SCLC group only). * Patients must have histologically or cytologically confirmed cholangiocarcinoma that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care (various solid tumors cohort, cholangiocarcinoma group only). * Patients must have histologically or cytologically confirmed mesothelioma that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care (various solid tumors cohort, mesothelioma group only). * Patients must have histologically or cytologically confirmed carcinoma of the esophagus including the gastroesophageal junction that is locally advanced or metastatic with no available therapy options that are known to provide clinical benefit per institutional standard of care (various solid tumors cohort, gastroesophageal carcinoma group only).

Design outcomes

Primary

MeasureTime frameDescription
Physical Exam (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through physical exam.
Hemoglobin (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through hemoglobin.
Thyrotropin (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through Thyrotropin.
Overall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)Baseline and up to 2 yrs (follow-up)Evaluated using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1. A responder was a patient who showed best overall response of complete response (CR, disappearance of all target lesions) or partial response (PR, ≥30% decrease in the sum of the longest diameter of target lesions), which was confirmed again at least 4 weeks after the initial assessment.
Blood Pressure (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through blood pressure.
Electrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through electrocardiogram.
Amylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through amylase and lipase.
Thyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through thyroxine free.

Secondary

MeasureTime frameDescription
Hemoglobin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through hemoglobin.
Tumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:Every 9 weeks; up to 2 yrsAnalysis of progression-free survival (PFS); time to progression, where progressive disease (PD) corresponds to ≥20% increase in the sum of the longest diameter of target lesions.
Blood Pressure (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through blood pressure.
Electrocardiogram: QT Interval (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through electrocardiogram.
Amylase and Lipase (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through amylase and lipase.
Thyroxine Free (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through thyroxine free.
Thyrotropin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through thyrotropin.
Physical Exam (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Baseline and up to 2 yrs (follow-up)Evaluation of the safety and tolerability of the RP2D of birinapant when given in combination with pembrolizumab assessed through physical exam.

Other

MeasureTime frameDescription
Assess Tumor ActivityBaseline and up to 2 yrs (follow-up)To be evaluated according to immune response evaluation criteria in solid tumors (iRECIST)
Pharmacokinetics of Birinapant in PlasmaDay 1 through Day 8The plasma concentrations of birinapant was to be measured and summarized descriptively
Translational Biomarker Assessments of Tumor Biopsy SamplesBaseline and up to 2 yrs (follow-up)Measured by: Programmed death ligand 1 (PD-1L), programmed cell death protein 1 receptor (PD-1) and related proteins, genome analysis, IAP gene copy number and TILs cluster of differentiation (CD)3, CD4, CD8 and CD19
Translational Biomarker Assessments Obtained From BloodDay 1 through Day 8Measured by inhibitor of apoptosis proteins (IAPs), cytokines, tumor infiltrating lymphocytes (TILs) cluster of differentiation (CD)3, CD4, CD8, and CD19 as well as absolute neutrophil and lymphocyte counts

Countries

United States

Participant flow

Participants by arm

ArmCount
Phase 1 - 5.6 mg
Dose escalation (Phase 1): 5.6 mg birinapant + pembrolizumab
3
Phase 1 - 11 mg
Dose escalation (Phase 1): 11 mg birinapant + pembrolizumab
3
Phase 1 - 17 mg
Dose escalation (Phase 1): 17 mg birinapant + pembrolizumab
6
Phase 1 - 22 mg
Dose escalation (Phase 1): 22 mg birinapant + pembrolizumab
7
Phase 2 - 22 mg
Dose expansion (Phase 2): 22 mg birinapant + pembrolizumab
15
Total34

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004
Overall StudyAdverse Event00100
Overall StudyClinical progression01201
Overall StudyRadiological progression222510
Overall StudyWithdrawal by Subject00114

Baseline characteristics

CharacteristicPhase 1 - 5.6 mgPhase 1 - 11 mgPhase 1 - 17 mgPhase 1 - 22 mgPhase 2 - 22 mgTotal
Age, Continuous56 years
STANDARD_DEVIATION 16.09
71.3 years
STANDARD_DEVIATION 3.21
60.2 years
STANDARD_DEVIATION 6.15
59.1 years
STANDARD_DEVIATION 11.61
53.8 years
STANDARD_DEVIATION 10.43
60.08 years
STANDARD_DEVIATION 9.5
Race/Ethnicity, Customized
Hispanic or Latino
0 Participants0 Participants0 Participants1 Participants1 Participants2 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
3 Participants3 Participants6 Participants6 Participants12 Participants30 Participants
Race/Ethnicity, Customized
Unknown
0 Participants0 Participants0 Participants0 Participants2 Participants2 Participants
Region of Enrollment
United States
3 participants3 participants6 participants7 participants15 participants34 participants
Sex: Female, Male
Female
2 Participants2 Participants5 Participants4 Participants10 Participants23 Participants
Sex: Female, Male
Male
1 Participants1 Participants1 Participants3 Participants5 Participants11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 31 / 60 / 71 / 15
other
Total, other adverse events
3 / 33 / 36 / 67 / 715 / 15
serious
Total, serious adverse events
2 / 31 / 34 / 63 / 75 / 15

Outcome results

Primary

Amylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through amylase and lipase.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at baseline33.7 U/LStandard Deviation 32.5
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at follow-up27.0 U/L
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at baseline17.0 U/LStandard Deviation 12.2
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at follow-up12.0 U/L
Phase 1 - 11 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at follow-up49.0 U/LStandard Deviation 41
Phase 1 - 11 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at baseline24.0 U/LStandard Deviation 21
Phase 1 - 11 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at follow-up15.5 U/LStandard Deviation 10.6
Phase 1 - 11 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at baseline38.3 U/LStandard Deviation 9
Phase 1 - 17 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at baseline32.2 U/LStandard Deviation 21.4
Phase 1 - 17 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at follow-up56.5 U/LStandard Deviation 38.9
Phase 1 - 17 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at follow-up16.0 U/LStandard Deviation 2.8
Phase 1 - 17 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at baseline64.3 U/LStandard Deviation 8
Phase 1 - 22 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at follow-up18.0 U/L
Phase 1 - 22 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at follow-up60.0 U/L
Phase 1 - 22 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Amylase at baseline40.6 U/LStandard Deviation 27.4
Phase 1 - 22 mgAmylase and Lipase (Safety and Tolerability in the Dose Escalation Phase)Lipase at baseline49.9 U/LStandard Deviation 63.3
Primary

Blood Pressure (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through blood pressure.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at follow-up84.0 mmHg
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at baseline137.3 mmHgStandard Deviation 18.6
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at baseline78.0 mmHgStandard Deviation 2
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at follow-up120.0 mmHg
Phase 1 - 11 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at baseline77.0 mmHgStandard Deviation 15.5
Phase 1 - 11 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at follow-up66.0 mmHgStandard Deviation 8.5
Phase 1 - 11 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at follow-up107.0 mmHgStandard Deviation 1.4
Phase 1 - 11 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at baseline143.3 mmHgStandard Deviation 14.5
Phase 1 - 17 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at baseline74.3 mmHgStandard Deviation 9.3
Phase 1 - 17 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at follow-up119.7 mmHgStandard Deviation 30.2
Phase 1 - 17 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at baseline134.0 mmHgStandard Deviation 22.1
Phase 1 - 17 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at follow-up71.3 mmHgStandard Deviation 11.4
Phase 1 - 22 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at baseline118.6 mmHgStandard Deviation 11.4
Phase 1 - 22 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at follow-up75.0 mmHg
Phase 1 - 22 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Systolic blood pressure at follow-up120.0 mmHg
Phase 1 - 22 mgBlood Pressure (Safety and Tolerability in the Dose Escalation Phase)Diastolic blood pressure at baseline66.6 mmHgStandard Deviation 7.9
Primary

Electrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through electrocardiogram.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at baseline368.7 msStandard Deviation 30.6
Phase 1 - 5.6 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at follow-up392.0 ms
Phase 1 - 11 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at baseline388.3 msStandard Deviation 11.2
Phase 1 - 17 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at follow-up380.0 ms
Phase 1 - 17 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at baseline386.3 msStandard Deviation 32.9
Phase 1 - 22 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at baseline365.9 msStandard Deviation 32.7
Phase 1 - 22 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Escalation Phase)Electrocardiogram QT interval at follow-up364.0 ms
Primary

Hemoglobin (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through hemoglobin.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at baseline110.3 g/LStandard Deviation 20.2
Phase 1 - 5.6 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at follow-up89.0 g/L
Phase 1 - 11 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at baseline107.3 g/LStandard Deviation 8.6
Phase 1 - 11 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at follow-up107.0 g/LStandard Deviation 14.1
Phase 1 - 17 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at baseline112.0 g/LStandard Deviation 11.8
Phase 1 - 17 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at follow-up116.0 g/LStandard Deviation 19.8
Phase 1 - 22 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at baseline102.0 g/LStandard Deviation 16
Phase 1 - 22 mgHemoglobin (Safety and Tolerability in the Dose Escalation Phase)Hemoglobin at follow-up99.0 g/L
Primary

Overall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)

Evaluated using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1. A responder was a patient who showed best overall response of complete response (CR, disappearance of all target lesions) or partial response (PR, ≥30% decrease in the sum of the longest diameter of target lesions), which was confirmed again at least 4 weeks after the initial assessment.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: For phase 2, only the colorectal cancer (CRC) cohort was analyzed for overall response rate. Patients were not recruited to the ovarian cancer or cervical cancer cohorts due to early termination of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Phase 1 - 5.6 mgOverall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)1 Participants
Phase 1 - 11 mgOverall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)0 Participants
Phase 1 - 17 mgOverall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)0 Participants
Phase 1 - 22 mgOverall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)0 Participants
Phase 2 CRC - 22 mgOverall Response (Applicable for: Dose Escalation Phase and Dose Expansion Phase in Cohorts of Colorectal Cancer, Ovarian Cancer and Cervical Cancer)0 Participants
Primary

Physical Exam (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through physical exam.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 1 - 5.6 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - baseline0 Participants
Phase 1 - 5.6 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - last assessment0 Participants
Phase 1 - 11 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - last assessment1 Participants
Phase 1 - 11 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - baseline0 Participants
Phase 1 - 17 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - baseline3 Participants
Phase 1 - 17 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - last assessment3 Participants
Phase 1 - 22 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - baseline0 Participants
Phase 1 - 22 mgPhysical Exam (Safety and Tolerability in the Dose Escalation Phase)Clinically significant physical exam abnormalities - last assessment0 Participants
Primary

Thyrotropin (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through Thyrotropin.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at baseline3.8 mU/LStandard Deviation 3.2
Phase 1 - 5.6 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at last assessment14.2 mU/LStandard Deviation 18.7
Phase 1 - 11 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at last assessment7.7 mU/LStandard Deviation 4
Phase 1 - 11 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at baseline2.4 mU/LStandard Deviation 0.9
Phase 1 - 17 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at baseline1.7 mU/LStandard Deviation 0.8
Phase 1 - 17 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at last assessment2.3 mU/LStandard Deviation 1.3
Phase 1 - 22 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at baseline1.4 mU/LStandard Deviation 0.9
Phase 1 - 22 mgThyrotropin (Safety and Tolerability in the Dose Escalation Phase)Thyrotropin at last assessment2.6 mU/LStandard Deviation 2.1
Primary

Thyroxine Free (Safety and Tolerability in the Dose Escalation Phase)

Evaluation of the safety and tolerability of birinapant when given in combination with pembrolizumab assessed through thyroxine free.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at last assessment25.2 nmol/LStandard Deviation 8
Phase 1 - 5.6 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at baseline16.8 nmol/LStandard Deviation 5
Phase 1 - 11 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at baseline15.0 nmol/LStandard Deviation 3
Phase 1 - 11 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at last assessment16.7 nmol/LStandard Deviation 5.4
Phase 1 - 17 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at last assessment16.9 nmol/LStandard Deviation 4.1
Phase 1 - 17 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at baseline15.0 nmol/LStandard Deviation 3.3
Phase 1 - 22 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at last assessment16.5 nmol/LStandard Deviation 3.6
Phase 1 - 22 mgThyroxine Free (Safety and Tolerability in the Dose Escalation Phase)Thyroxine free at baseline18.7 nmol/LStandard Deviation 1.6
Secondary

Amylase and Lipase (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through amylase and lipase.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Amylase at baseline68.9 U/LStandard Deviation 22.5
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Amylase at follow-up93.0 U/LStandard Deviation 35.4
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Lipase at follow-up29.7 U/LStandard Deviation 16.6
Phase 1 - 5.6 mgAmylase and Lipase (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Lipase at baseline44.3 U/LStandard Deviation 41.1
Secondary

Blood Pressure (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through blood pressure.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Systolic blood pressure at baseline130.9 mmHgStandard Deviation 20.3
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Systolic blood pressure at follow-up129.3 mmHgStandard Deviation 16.6
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Diastolic blood pressure at baseline80.0 mmHgStandard Deviation 8
Phase 1 - 5.6 mgBlood Pressure (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Diastolic blood pressure at follow-up74.4 mmHgStandard Deviation 12.2
Secondary

Electrocardiogram: QT Interval (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through electrocardiogram.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Electrocardiogram QT interval at baseline383.5 msStandard Deviation 25.6
Phase 1 - 5.6 mgElectrocardiogram: QT Interval (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Electrocardiogram QT interval at follow-up392.6 msStandard Deviation 38.7
Secondary

Hemoglobin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through hemoglobin.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgHemoglobin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Hemoglobin at baseline126.4 g/LStandard Deviation 15.4
Phase 1 - 5.6 mgHemoglobin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Hemoglobin at follow-up130.2 g/LStandard Deviation 13.2
Secondary

Physical Exam (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of the RP2D of birinapant when given in combination with pembrolizumab assessed through physical exam.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Phase 1 - 5.6 mgPhysical Exam (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Clinically significant physical exam abnormalities - last assessment2 Participants
Phase 1 - 5.6 mgPhysical Exam (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Clinically significant physical exam abnormalities - baseline0 Participants
Secondary

Thyrotropin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through thyrotropin.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgThyrotropin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Thyrotropin at baseline2.3 mU/LStandard Deviation 1.3
Phase 1 - 5.6 mgThyrotropin (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Thyrotropin at last assessment9.8 mU/LStandard Deviation 23.5
Secondary

Thyroxine Free (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)

Evaluation of the safety and tolerability of birinapant at the recommended phase 2 dose (RP2D) when given in combination with pembrolizumab assessed through thyroxine free.

Time frame: Baseline and up to 2 yrs (follow-up)

Population: As the population of participants were very ill, assessments outside clinical praxis were sometimes not performed.

ArmMeasureGroupValue (MEAN)Dispersion
Phase 1 - 5.6 mgThyroxine Free (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Thyroxine free at baseline14.7 nmol/LStandard Deviation 3.1
Phase 1 - 5.6 mgThyroxine Free (Safety and Tolerability in the Dose Expansion Phase - Colorectal Cancer Cohort)Thyroxine free at last assessment16.4 nmol/LStandard Deviation 4.4
Secondary

Tumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:

Analysis of progression-free survival (PFS); time to progression, where progressive disease (PD) corresponds to ≥20% increase in the sum of the longest diameter of target lesions.

Time frame: Every 9 weeks; up to 2 yrs

ArmMeasureValue (MEDIAN)
Phase 1 - 5.6 mgTumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:15.4 Weeks
Phase 1 - 11 mgTumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:7.7 Weeks
Phase 1 - 17 mgTumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:8.6 Weeks
Phase 1 - 22 mgTumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:8.0 Weeks
Phase 2 CRC - 22 mgTumor Response Evaluated Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1:9.0 Weeks
Other Pre-specified

Assess Tumor Activity

To be evaluated according to immune response evaluation criteria in solid tumors (iRECIST)

Time frame: Baseline and up to 2 yrs (follow-up)

Population: Tumor activity according to iRECIST was not analyzed due to early termination of the study.

Other Pre-specified

Pharmacokinetics of Birinapant in Plasma

The plasma concentrations of birinapant was to be measured and summarized descriptively

Time frame: Day 1 through Day 8

Population: Birinapant pharmacokinetics was not analyzed due to early termination of the study.

Other Pre-specified

Translational Biomarker Assessments Obtained From Blood

Measured by inhibitor of apoptosis proteins (IAPs), cytokines, tumor infiltrating lymphocytes (TILs) cluster of differentiation (CD)3, CD4, CD8, and CD19 as well as absolute neutrophil and lymphocyte counts

Time frame: Day 1 through Day 8

Population: Biomarkers in blood were not analyzed due to early termination of the study.

Other Pre-specified

Translational Biomarker Assessments of Tumor Biopsy Samples

Measured by: Programmed death ligand 1 (PD-1L), programmed cell death protein 1 receptor (PD-1) and related proteins, genome analysis, IAP gene copy number and TILs cluster of differentiation (CD)3, CD4, CD8 and CD19

Time frame: Baseline and up to 2 yrs (follow-up)

Population: Biomarkers in tumor biopsy samples were not analyzed due to early termination of the study.

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026