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NCT01546038 · OUTCOME

Number of Participants With Dose-limiting Toxicities (DLTs) at Phase 1B

A Study To Evaluate PF-04449913 With Chemotherapy In Patients With Acute Myeloid Leukemia or Myelodysplastic Syndrome · Source last updated 2020-03-03

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
NUMBER
Unit
Participants
Interval / dispersion
Not reported
Time frame
Arms A and B: Cycle 1, Day 1 to Day 28; Arm C: Cycle 1, Day -3 to Day 21 or to Day 28 depending on when the next chemotherapy cycle was started

What was measured

A DLT was any of the following adverse events (AEs) in Cycle 1 and considered by the investigator possibly related to glasdegib in combination with chemotherapy: (1) Grade \>= 3 non-hematologic toxicity, excluding Grade \>= 3 infection, fever (including febrile neutropenia), infusion related AEs, electrolyte abnormalities and ALT/AST elevation that returned to Grade \<= 1 or baseline within 7 days; (2) prolonged myelosuppression that lasted longer than 42 days from the point of detection, defined as absolute neutrophil count (ANC) \< 500/microliter(mcL) or platelet count \< 10 \*10\^9/L with a normal bone marrow (\<5% blasts and no evidence of disease or dysplasia); (3) inability to deliver at least 80% of the planned study doses for all agents in a combination due to non-hematologic toxicities; (4) Delay of \>28 days in receiving the next scheduled cycle due to persisting non-hematologic toxicities. Arm A: Glasdegib+LDAC; Arm B: Glasdegib+Decitabine; Arm C: Glasdegib+Cytarabine/Daunorubicin.

Analysis population: Per protocol analysis set: all enrolled participants in the dose escalation component who received at least 1 dose of glasdegib and of the co-administered chemotherapeutics and who did not have major treatment deviations during the DLT monitoring period.

Groups in this outcome

Phase 1B: Glasdegib 100 mg + LDAC

Participants received oral doses of glasdegib (PF-04449913) tablets 100 milligram (mg) starting on Day 3 of Cycle 1 for pharmacokinetic (PK) assessment purposes and thereafter once daily (QD) and continuously for 28-day cycles (starting on Day 1 for all other cycles). LDAC was given at a dose of 20 mg subcutaneously twice daily (BID) on Days 1-10 of the 28-day cycles.

Phase 1B: Glasdegib 200 mg + LDAC

Participants received oral doses of glasdegib tablets 200 mg starting on Day 3 of Cycle 1 for PK assessment purposes and thereafter QD and continuously for 28-day cycles (starting on Day 1 for all other cycles). LDAC was given at a dose of 20 mg subcutaneously BID on Days 1-10 of the 28-day cycles. In March 2013, all active participants receiving glasdegib 200 mg were required to reduce dose to 100 mg. Participants who had glasdegib dose reduction were reported as the starting glasdegib dose level received. Two (2) participants in this cohort had dose reduction to 100 mg starting from Cycle 2/Day 1 and Cycle 2/Day 16, respectively.

Phase 1B: Glasdegib 100 mg + Decitabine

Participants received oral doses of glasdegib tablets 100 mg starting on Day 2 of Cycle 1 for PK assessment purposes and thereafter QD and continuously for 28-day cycles (starting on Day 1 for all other cycles). Decitabine was given at a dose of 20 mg/m\^2 as an intravenous (IV) infusion over 1 hour on Days 1-5 of the 28-day cycles.

Phase 1B: Glasdegib 200 mg + Decitabine

Participants received oral doses of glasdegib tablets 200 mg starting on Day 2 of Cycle 1 for PK assessment purposes and thereafter QD and continuously for 28-day cycles (starting on Day 1 for all other cycles). Decitabine was given at a dose of 20 mg/m\^2 as an IV infusion over 1 hour on Days 1-5 of the 28-day cycles.In March 2013, all active participants receiving glasdegib 200 mg were required to reduce dose to 100 mg. Participants who had glasdegib dose reduction were reported as the starting glasdegib dose level received. Two (2) participants in this cohort had dose reduction to 100 mg starting from Cycle 1/Day 24 and Cycle 5/Day 1, respectively.

Phase 1B: Glasdegib 100 mg + Cytarabine/Daunorubicin

Participants received 1-2 cycles of induction (glasdegib and daunorubicin/cytarabine), followed by 2-4 cycles of consolidation (glasdegib and high dose cytarabine) and a maximum of 6 cycles of maintenance (glasdegib alone). Daunorubicin was given on Days 1-3 QD at a dose of 60 mg/m\^2/day by IV together with cytarabine on Days 1-7 at a dose of 100 mg/m\^2/day by continuous IV infusion for each cycle of induction. Cytarabine was given on Days 1, 3, and 5 at a dose of 1 g/m\^2 administered as a 3-hour IV infusion every 12 hours (2 g/m\^2/day) for each cycle of consolidation. Glasdegib tablets 100 mg QD was started on induction Cycle 1/Day -3 and administered continuously QD thereafter for the duration of the study. A cycle was defined as 28 days.

Phase 1B: Glasdegib 200 mg + Cytarabine/Daunorubicin

Participants received 1-2 cycles of induction (glasdegib and daunorubicin/cytarabine), followed by 2-4 cycles of consolidation (glasdegib and high dose cytarabine) and a maximum of 6 cycles of maintenance (glasdegib alone). Daunorubicin was given on Days 1-3 QD at a dose of 60 mg/m\^2/day by IV together with cytarabine on Days 1-7 at a dose of 100 mg/m\^2/day by continuous IV infusion for each cycle of induction. Cytarabine was given on Days 1, 3, and 5 at a dose of 1 g/m\^2 administered as a 3-hour IV infusion every 12 hours (2 g/m\^2/day) for each cycle of consolidation. Glasdegib tablets 200 mg QD was started on induction Cycle 1/Day -3 and administered continuously QD thereafter for the duration of the study. A cycle was defined as 28 days.In March 2013, all active participants receiving glasdegib 200 mg were required to reduce dose to 100 mg.One (1) participant in this cohort had dose reduction to 100 mg starting from Consolidation Cycle 1/Day 21.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Phase 1B: Glasdegib 100 mg + LDAC3
Phase 1B: Glasdegib 200 mg + LDAC5
Phase 1B: Glasdegib 100 mg + Decitabine4
Phase 1B: Glasdegib 200 mg + Decitabine2
Phase 1B: Glasdegib 100 mg + Cytarabine/Daunorubicin6
Phase 1B: Glasdegib 200 mg + Cytarabine/Daunorubicin6

Reported measurements

Source class 1
Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Phase 1B: Glasdegib 100 mg + LDAC0Not reportedNot reportedNot reportedNot reported
Phase 1B: Glasdegib 200 mg + LDAC0Not reportedNot reportedNot reportedNot reported
Phase 1B: Glasdegib 100 mg + Decitabine0Not reportedNot reportedNot reportedNot reported
Phase 1B: Glasdegib 200 mg + Decitabine0Not reportedNot reportedNot reportedNot reported
Phase 1B: Glasdegib 100 mg + Cytarabine/Daunorubicin1Not reportedNot reportedNot reportedNot reported
Phase 1B: Glasdegib 200 mg + Cytarabine/Daunorubicin0Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        0
      3. group Id
        OG002
        value
        0
      4. group Id
        OG003
        value
        0
      5. group Id
        OG004
        value
        1
      6. group Id
        OG005
        value
        0
denoms
  1. counts
    1. group Id
      OG000
      value
      3
    2. group Id
      OG001
      value
      5
    3. group Id
      OG002
      value
      4
    4. group Id
      OG003
      value
      2
    5. group Id
      OG004
      value
      6
    6. group Id
      OG005
      value
      6
    units
    Participants
description
A DLT was any of the following adverse events (AEs) in Cycle 1 and considered by the investigator possibly related to glasdegib in combination with chemotherapy: (1) Grade \>= 3 non-hematologic toxicity, excluding Grade \>= 3 infection, fever (including febrile neutropenia), infusion related AEs, electrolyte abnormalities and ALT/AST elevation that returned to Grade \<= 1 or baseline within 7 days; (2) prolonged myelosuppression that lasted longer than 42 days from the point of detection, defined as absolute neutrophil count (ANC) \< 500/microliter(mcL) or platelet count \< 10 \*10\^9/L with a normal bone marrow (\<5% blasts and no evidence of disease or dysplasia); (3) inability to deliver at least 80% of the planned study doses for all agents in a combination due to non-hematologic toxicities; (4) Delay of \>28 days in receiving the next scheduled cycle due to persisting non-hematologic toxicities. Arm A: Glasdegib+LDAC; Arm B: Glasdegib+Decitabine; Arm C: Glasdegib+Cytarabine/Daunorubicin.
groups
  1. description
    Participants received oral doses of glasdegib (PF-04449913) tablets 100 milligram (mg) starting on Day 3 of Cycle 1 for pharmacokinetic (PK) assessment purposes and thereafter once daily (QD) and continuously for 28-day cycles (starting on Day 1 for all other cycles). LDAC was given at a dose of 20 mg subcutaneously twice daily (BID) on Days 1-10 of the 28-day cycles.
    id
    OG000
    title
    Phase 1B: Glasdegib 100 mg + LDAC
  2. description
    Participants received oral doses of glasdegib tablets 200 mg starting on Day 3 of Cycle 1 for PK assessment purposes and thereafter QD and continuously for 28-day cycles (starting on Day 1 for all other cycles). LDAC was given at a dose of 20 mg subcutaneously BID on Days 1-10 of the 28-day cycles. In March 2013, all active participants receiving glasdegib 200 mg were required to reduce dose to 100 mg. Participants who had glasdegib dose reduction were reported as the starting glasdegib dose level received. Two (2) participants in this cohort had dose reduction to 100 mg starting from Cycle 2/Day 1 and Cycle 2/Day 16, respectively.
    id
    OG001
    title
    Phase 1B: Glasdegib 200 mg + LDAC
  3. description
    Participants received oral doses of glasdegib tablets 100 mg starting on Day 2 of Cycle 1 for PK assessment purposes and thereafter QD and continuously for 28-day cycles (starting on Day 1 for all other cycles). Decitabine was given at a dose of 20 mg/m\^2 as an intravenous (IV) infusion over 1 hour on Days 1-5 of the 28-day cycles.
    id
    OG002
    title
    Phase 1B: Glasdegib 100 mg + Decitabine
  4. description
    Participants received oral doses of glasdegib tablets 200 mg starting on Day 2 of Cycle 1 for PK assessment purposes and thereafter QD and continuously for 28-day cycles (starting on Day 1 for all other cycles). Decitabine was given at a dose of 20 mg/m\^2 as an IV infusion over 1 hour on Days 1-5 of the 28-day cycles.In March 2013, all active participants receiving glasdegib 200 mg were required to reduce dose to 100 mg. Participants who had glasdegib dose reduction were reported as the starting glasdegib dose level received. Two (2) participants in this cohort had dose reduction to 100 mg starting from Cycle 1/Day 24 and Cycle 5/Day 1, respectively.
    id
    OG003
    title
    Phase 1B: Glasdegib 200 mg + Decitabine
  5. description
    Participants received 1-2 cycles of induction (glasdegib and daunorubicin/cytarabine), followed by 2-4 cycles of consolidation (glasdegib and high dose cytarabine) and a maximum of 6 cycles of maintenance (glasdegib alone). Daunorubicin was given on Days 1-3 QD at a dose of 60 mg/m\^2/day by IV together with cytarabine on Days 1-7 at a dose of 100 mg/m\^2/day by continuous IV infusion for each cycle of induction. Cytarabine was given on Days 1, 3, and 5 at a dose of 1 g/m\^2 administered as a 3-hour IV infusion every 12 hours (2 g/m\^2/day) for each cycle of consolidation. Glasdegib tablets 100 mg QD was started on induction Cycle 1/Day -3 and administered continuously QD thereafter for the duration of the study. A cycle was defined as 28 days.
    id
    OG004
    title
    Phase 1B: Glasdegib 100 mg + Cytarabine/Daunorubicin
  6. description
    Participants received 1-2 cycles of induction (glasdegib and daunorubicin/cytarabine), followed by 2-4 cycles of consolidation (glasdegib and high dose cytarabine) and a maximum of 6 cycles of maintenance (glasdegib alone). Daunorubicin was given on Days 1-3 QD at a dose of 60 mg/m\^2/day by IV together with cytarabine on Days 1-7 at a dose of 100 mg/m\^2/day by continuous IV infusion for each cycle of induction. Cytarabine was given on Days 1, 3, and 5 at a dose of 1 g/m\^2 administered as a 3-hour IV infusion every 12 hours (2 g/m\^2/day) for each cycle of consolidation. Glasdegib tablets 200 mg QD was started on induction Cycle 1/Day -3 and administered continuously QD thereafter for the duration of the study. A cycle was defined as 28 days.In March 2013, all active participants receiving glasdegib 200 mg were required to reduce dose to 100 mg.One (1) participant in this cohort had dose reduction to 100 mg starting from Consolidation Cycle 1/Day 21.
    id
    OG005
    title
    Phase 1B: Glasdegib 200 mg + Cytarabine/Daunorubicin
param Type
NUMBER
population Description
Per protocol analysis set: all enrolled participants in the dose escalation component who received at least 1 dose of glasdegib and of the co-administered chemotherapeutics and who did not have major treatment deviations during the DLT monitoring period.
reporting Status
POSTED
time Frame
Arms A and B: Cycle 1, Day 1 to Day 28; Arm C: Cycle 1, Day -3 to Day 21 or to Day 28 depending on when the next chemotherapy cycle was started
title
Number of Participants With Dose-limiting Toxicities (DLTs) at Phase 1B
type
PRIMARY
unit Of Measure
Participants

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Preserved source evidence · Not medical advice