Study of MK-8242 Alone and in Combination With Cytarabine in Participants With Acute Myelogenous Leukemia (P07649)

This study has been terminated.
(The study was terminated early due to business reasons.)
Sponsor:
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier:
NCT01451437
First received: October 11, 2011
Last updated: May 9, 2016
Last verified: April 2016
  Purpose
This is a study of MK-8242 alone and in combination with cytarabine in adult participants with refractory or recurrent acute myelogenous leukemia (AML). The study will have 2 Arms. Arm A is for participants with refractory or recurrent AML who are considered ineligible for standard chemotherapy. In Part 1 of Arm A, participants will receive MK-8242 monotherapy in escalating doses to determine the recommended phase 2 dose [RP2D]. In Part 2, participants will receive monotherapy with MK-8242 to confirm the RP2D and assess preliminary efficacy. Arm B is for participants with recurrent AML following an initial complete remission (CR) or CR with incomplete marrow recovery (CRi) of 6 to 12 months duration. In Part 1 of Arm B, participants will receive MK-8242 in escalating doses + cytarabine to determine the RP2D in combination with cytarabine. In Part 2, participants will receive MK-8242 + cytarabine to confirm the RP2D and assess preliminary efficacy. The pharmacokinetics of MK-8242 will be studied in both arms. With Amendment 4 (22 August 2013) a 21-day dosing cycle is added, with MK-8242 being given on Days 1-7 of each 21-day cycle in both the monotherapy and combination therapy arms; data from Arm A will be used to determine whether a participant receives 21-day or 28-day therapy in Arm B.

Condition Intervention Phase
Acute Myelogenous Leukemia (AML)
Drug: MK-8242
Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I Study to Evaluate the Safety and Tolerability and Pharmacokinetic/Pharmacodynamics of MK-8242 Administered Alone and in Combination With Chemotherapy in Subjects With Refractory or Recurrent Acute Myelogenous Leukemia (Protocol No. P07649 (005))

Resource links provided by NLM:


Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • Number of Participants With Dose Limiting Toxicities (DLTs) [ Time Frame: Up to 28 days (Cycle 1) for non-hematologic toxicities and 42 days (Cycle 1) for hematologic toxicities ] [ Designated as safety issue: Yes ]
    DLTs were identified using Common Terminology Criteria for Adverse Events (CTCAE) v. 4.0 for toxicities attributable to the study drug. Hematologic DLTs were defined in the absence of morphological evidence of acute leukemia in the marrow if 1) bone marrow: aplastic marrow with <5% cellularity without erythroid, myeloid, or megakaryocytic precursors and 2) peripheral blood: absolute neutrophil count (ANC) <100/µL, platelet count <10,000/µL, and transfusion-dependent anemia. Non-hematologic DLTs were defined as any ≥Grade 3 toxicity with the following exceptions/clarifications: 1) infection, fatigue, anorexia, or alopecia are not included in determination of the DLT 2) Grade 3 nausea, vomiting, diarrhea, or dehydration occurring in a setting of inadequate treatment 3) any abnormal non-hematological laboratory value ≥Grade 3 will be considered a DLT after 72 hours of appropriate medical intervention if not related to an underlying disease or not attributable to another event.

  • Number of Participants With Complete Remission (CR) at RP2D [ Time Frame: End of Treatment (up to 198 days) ] [ Designated as safety issue: No ]
    Clinical activity of MK-8242 given as monotherapy in participants with refractory or recurrent AML measured as participants who achieved CR according to Cheson (2003) criteria at the RP2D. The outcome analysis was not performed since the RP2D for MK-8242 monotherapy could not be established due to early termination of the study.

  • Number of Participants With Complete Remission With Incomplete Marrow Recovery (CRi) at RP2D [ Time Frame: End of Treatment (up to 198 days) ] [ Designated as safety issue: No ]
    Clinical activity of MK-8242 given as monotherapy in participants with refractory or recurrent AML measured as participants who achieved CRi according to Cheson (2003) criteria at the RP2D. The outcome analysis was not performed since the RP2D for MK-8242 monotherapy could not be established due to early termination of the study.


Secondary Outcome Measures:
  • Number of Participants With CR at Dose Levels Other Than RP2D [ Time Frame: End of Treatment (up to 198 days) ] [ Designated as safety issue: No ]
    Clinical activity of MK-8242 given as monotherapy in participants with refractory or recurrent AML measured as participants who achieved CR according to Cheson (2003) criteria at dose levels other than RP2D. CR is defined as a morphologic leukemia-free state with a neutrophil count ≥1,000/µL, a platelet count ≥100,000/µL, no extramedullary disease, and RBC transfusion independence. Presented outcome values are not stratified for dose levels other than RP2D; the RP2D for MK-8242 monotherapy could not be established due to early termination of the study.

  • Number of Participants With CRi at Dose Levels Other Than RP2D [ Time Frame: End of Treatment (up to 198 days) ] [ Designated as safety issue: No ]
    Clinical activity of MK-8242 given as monotherapy in participants with refractory or recurrent AML measured as participants who achieved CRi according to Cheson (2003) criteria at dose levels other than RP2D. CRi is defined as fulfillment of all CR criteria with exceptions for residual neutropenia (<1,000/µL), thrombocytopenia (<100,000/µL), and RBC transfusion dependence. Presented outcome values are not stratified for dose levels other than RP2D; the RP2D for MK-8242 monotherapy could not be established due to early termination of the study.

  • Area Under the Concentration-time Curve From Time 0 to 24 Hours (AUC0-24hr) for MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1, Day 1 and Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, and 24 hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], and 24 [Day 7 only] hrs postdose) ] [ Designated as safety issue: No ]
    AUC(0-24hr) defined as AUC from time zero to 24 hours was determined for Cycle 1 Days 1 and 7 of MK-8242 QD and BID dosing using the trapezoidal up/log trapezoidal down method. For the BID arms, a projection beyond the last sampled time was made if a linear terminal elimination phase half-life was identified with three time-points after Tmax. Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Area Under the Concentration-time Curve From Time 0 to Last (AUC0-last) for MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1, Day 1 and Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, 24, and 48 [Day 7 only] hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], 24 [Day 7 only], 48 [Day 7 only] hrs postdose) ] [ Designated as safety issue: No ]
    AUC(0-last) defined as AUC from time zero to the time of last quantifiable sample was determined for Cycle 1 Days 1 and 7 of MK-8242 QD and BID dosing using the trapezoidal up/log trapezoidal down method. Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Area Under the Concentration-time Curve From Time 0 to Infinity (AUC0-∞) for MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1 Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, 24, and 48 hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], 24, 48 hrs postdose) ] [ Designated as safety issue: No ]
    AUC0-∞ defined as AUC from time zero to infinity was determined for Cycle 1 Day 7 of MK-8242 QD and BID dosing using the trapezoidal up/log trapezoidal down method. Projection beyond the last sampled time was made if a linear terminal elimination phase half-life was identified with three time-points after Tmax (condition not met for 60 QD and 120 BID dose groups). Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Maximum Plasma Concentration (Cmax) of MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1, Day 1 and Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, 24, and 48 [Day 7 only] hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], 24 [Day 7 only], 48 [Day 7 only] hrs postdose) ] [ Designated as safety issue: No ]
    Cmax was determined for Cycle 1 Days 1 and 7 of MK-8226 QD and BID dosing. Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Time to Maximum Concentration (Tmax) of MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1, Day 1 and Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, 24, and 48 [Day 7 only] hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], 24 [Day 7 only], 48 [Day 7 only] hrs postdose) ] [ Designated as safety issue: No ]
    Tmax was determined for Cycle 1 Days 1 and 7 of MK-8226 QD and BID dosing. Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Apparent Terminal Half-life (t1/2) for MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1 Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, 24, and 48 hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], 24, 48 hrs postdose) ] [ Designated as safety issue: No ]
    Elimination phase t1/2 was determined for Cycle 1 Day 7 of MK-8242 QD and BID dosing. Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Accumulation Ratio (R) of MK-8242 Alone and in Combination With Cytarabine [ Time Frame: Cycle 1 Day 7 (QD arms: predose and 0.25, 0.5, 0.75, 1, 2, 4, 6, 8, 10, 24, and 48 hrs postdose; BID arms: predose and 0.5, 1, 2, 4, 6, 8, 12 [optional], 24 [Day 7 only], 48 [Day 7 only] hrs postdose) ] [ Designated as safety issue: No ]
    The accumulation ratio (R) at steady state (based on dosing interval and apparent terminal half-life (t1/2)) for MK-8242 alone was not determined due to confounding of results by significant concentrations of a drug metabolite (M16). Analysis for the combination therapy was not performed due to early termination of the study (Study Arm B was not performed).

  • Urine Concentration of MK-8242 (Part 2 Arm A Only) [ Time Frame: Day 1 (predose and postdose) and Day 7 (postdose) ] [ Designated as safety issue: No ]
    The urine concentration of MK-8242 assessed as a measure of drug bioavailability was not determined due to early termination of the study (Study Part 2 was not performed).


Enrollment: 26
Study Start Date: November 2011
Study Completion Date: September 2014
Primary Completion Date: September 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Pt 1 Arm A: MK-8242 30 mg QD
Participants received MK-8242 30 mg once daily (QD) monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 60 mg QD
Participants received MK-8242 60 mg QD monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 120 mg QD
Participants received MK-8242 120 mg QD monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 250 mg QD
Participants received MK-8242 250 mg QD monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 120 mg BID
Participants received MK-8242 120 mg twice daily (BID) monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles (except Cycle 1 Day 7 on which MK-8242 120 mg was administered QD in the morning) in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 170 mg BID
Participants received MK-8242 170 mg BID monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles (except Cycle 1 Day 7 on which MK-8242 170 mg was administered QD in the morning) in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 210 mg BID
Participants received MK-8242 210 mg BID monotherapy on Days 1-7 of a 21-day cycle up to a maximum of 12 cycles (except Cycle 1 Day 7 on which MK-8242 210 mg was administered QD in the morning) in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 250 mg BID
Participants received MK-8242 250 mg BID monotherapy on Days 1-7 and Days 15-21 of a 28-day cycle up to a maximum of 12 cycles (except Cycle 1 Day 7 on which MK-8242 250 mg was administered QD in the morning) in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242
Experimental: Pt 1 Arm A: MK-8242 300 mg BID
Participants received MK-8242 300 mg BID monotherapy on Days 1-7 of a 21-day cycle up to a maximum of 12 cycles (except Cycle 1 Day 7 on which MK-8242 300 mg was administered QD in the morning) in Part 1 Arm A.
Drug: MK-8242
MK-8242 capsules, orally, once per day on Days 1-7 and Days 15-21 of each 28-day cycle (except Cycle 1 Day 7) up to a maximum of 12 cycles. Starting dose will be 30 mg and will be escalated in successive cohorts until maximum tolerated dose (MTD) is established. Beginning at a dose level of ≥120 mg total daily dose (TDD), the dosing regimen will switch to twice daily (BID). Amendment 4 added a 21-day dosing cycle in which MK-8242 would be given BID on Days 1-7 of each cycle, at the assigned dose level.
Other Name: SCH 900242

  Eligibility

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion criteria:

  • For Arm A Part 1 (monotherapy/dose escalation): refractory or recurrent AML, not an appropriate candidate for standard therapy
  • For Arm A Part 2 (monotherapy/dose confirmation/cohort expansion): refractory or recurrent AML, not an appropriate candidate for standard therapy, and have wild type p53 gene mutation analysis
  • For Arm B Part 1 (combination therapy/dose escalation): recurrent AML having achieved an initial CR or CRi of 6-12 months duration and age ≥18 years old and <70 years old
  • For Arm B Part 2 (combination therapy/dose confirmation/cohort expansion): recurrent AML having achieved an initial CR or CRi of 6-12 months duration, age ≥18 years old and <70 years old, and have wild type P53 gene mutation analysis
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or 2 for all Arm A, or 0 or 1 for all Arm B
  • Negative pregnancy test within 72 hours of the first dose of study medication
  • Female participants and male participants and their partners who are of childbearing potential must agree to abstain from sexual intercourse or to use an acceptable method of contraception during the study and for 90 days following the last dose of study therapy
  • Adequate organ function
  • Recovered from the effects of any prior surgery, radiotherapy or anti-neoplastic treatment, with the exception of alopecia
  • Must be able to swallow, retain, and absorb oral medications and oral nutrition
  • Must follow the appropriate washout period for prohibited treatments

Exclusion criteria:

  • Active malignancy other than AML
  • Leptomeningeal leukemia requiring intrathecal therapy
  • For Arm A and B, Part 1 only: history of myelodysplastic syndrome (MDS)
  • For Arm A and B, Part 2: AML in the background of MDS may be included
  • Isolated extramedullary leukemia without also meeting bone marrow criteria for acute leukemia
  • AML blast crisis of chronic myelogenous leukemia (CML)
  • Bone marrow transplant with active graft-versus host disease (GVHD) or who receives immunosuppressive therapy
  • Uncontrolled active infection that requires systemic treatment
  • Clinically significant hepatitis at Screening, or hepatitis C antibody positive, hepatitis B surface antigen positive, or human immunodeficiency virus (HIV) seropositive
  • Persistent, unresolved, drug-related toxicity
  • Breast-feeding, pregnant, intends to become pregnant or intends to breast feed during the study or has a positive pregnancy test at Screening
  • A person participating in any other clinical study with a potentially therapeutic agent or who has received another investigational product within 5 half-lives (if the half-life is known) or 28 days (if the half-life is unknown) prior to Day 1 of cycle 1
  • A participant who, within the past 6 months, has had any of the following: myocardial infarction, coronary/peripheral artery bypass graft, cerebrovascular accident, transient ischemic attack, or uncontrolled seizure disorder (i.e., seizures within the past 6 months)
  • A participant who, at the time of Screening, presents with: unstable or uncontrolled angina, New York Heart Association (NYHA) class III or IV congestive heart failure, uncontrolled hypertension, clinically significant cardiac dysrhythmia or clinically significant electrocardiogram (ECG) abnormality
  • Known bleeding disorder, e.g. hemophilia or disseminated intravascular coagulopathy or on anti-coagulation therapy
  • For Arm B only: Known hypersensitivity to cytarabine
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01451437

Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Investigators
Study Director: Medical Director Merck Sharp & Dohme Corp.
  More Information

Responsible Party: Merck Sharp & Dohme Corp.
ClinicalTrials.gov Identifier: NCT01451437     History of Changes
Other Study ID Numbers: P07649  2011-000709-31  MK-8242-005 
Study First Received: October 11, 2011
Results First Received: February 5, 2016
Last Updated: May 9, 2016
Health Authority: United States: Food and Drug Administration

Additional relevant MeSH terms:
Leukemia
Leukemia, Myeloid
Leukemia, Myeloid, Acute
Neoplasms by Histologic Type
Neoplasms

ClinicalTrials.gov processed this record on July 21, 2016