GLAD-AML - Glasdegib (Pf-04449913) With Two Standard Decitabine Regimens for Older Patients With Poor-risk Acute Myeloid Leukemia

A Randomized, Parallel-arm, Phase 2 Clinical Trial of the Combination of Glasdegib (Pf-04449913) With Two Standard Decitabine Regimens for Older Patients With Poor-risk Acute Myeloid Leukemia Who Are Unfit for or Refuse Intensive Chemotherapy (GLAD-AML)

This multi-center, randomized phase 2 study is designed to evaluate the complete remission (including complete remission with incomplete count recovery) rates of glasdegib in combination with either decitabine on a 5-day or 10-day schedule in patients with newly-diagnosed poor-risk AML who either refuse or are ineligible for intensive therapy.

Study Overview

• Status: Terminated
• Conditions: ACUTE MYELOID LEUKEMIA
• Intervention / Treatment: Drug: Glasdegib; Drug: Decitabine

Detailed Description

The primary objective of this multi-center, randomized phase 2 study is to determine the response rates, complete remission (CR) and complete remission with incomplete count recovery (CRi), of glasdegib/DAC5 and glasdegib/DAC10 in patients with newly-diagnosed PrAML.

There are two secondary objectives for this study. The first secondary objective is to evaluate the toxicity and safety profiles of glasdegib/DAC5 and glasdegib/DAC10 in patients with newly-diagnosed PrAML. The other secondary objective is to determine the event-free survival (EFS), relapse-free survival (RFS), overall survival (OS), duration of response, bone marrow mutational clearance, and remission clonality of glasdegib/DAC5 and glasdegib/DAC10 in patients with newly-diagnosed PrAML.

• Study Type: Interventional
• Enrollment (Actual): 1
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Connecticut
    • New Haven, Connecticut, United States, 06511
      • Yale Cancer Center/Smilow

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patients must have a morphologically-confirmed diagnosis of AML according to WHO 2016 classification with poor-risk disease as defined by the cytogenetic or molecular abnormalities (excluding FLT3-mutated AML).
• Eastern Cooperative Oncology Group (ECOG) Performance Status ≤2.

• Adequate Renal Function:

  a. Calculated creatinine clearance (determined by MDRD) ≥50mL/min/1.73m2, or serum creatinine <1.5x upper limit of normal (ULN);

• Adequate Liver Function:

  1. Total serum bilirubin ≤ 2.0 x ULN (unless the bilirubin is principally unconjugated and there is strong suspicion of sub-clinical hemolysis or the patient has documented Gilbert's disease);
  2. Aspartate transaminase (AST) and Alanine transaminase (ALT) ≤ 3.0 x ULN;
  3. Alkaline phosphatase ≤ 3.0 x ULN.
• Serum or urine pregnancy test (for female patients of childbearing potential) with a minimum sensitivity of 25 IU/L or equivalent units of human chorionic gonadotropin (HCG) negative at screening.
• Males and female patients both of childbearing potential and at risk for pregnancy must agree to use two highly effective method(s) of contraception throughout the study and for 180 days after the last dose of decitabine and the last dose of glasdegib, whichever occurs later.

• Female patients who are not of childbearing potential (i.e. meet at least 1 of the following criteria):

  1. Have undergone a documented hysterectomy and/or bilateral oophorectomy;
  2. Have medically confirmed ovarian failure;
  3. Have achieved postmenopausal status, defined as follows: cessation of regular menses for at least 12 consecutive months with no alternative pathological or physiological cause; status may be confirmed by having a serum follicle stimulating hormone (FSH) level within the laboratory's reference range for postmenopausal women.

Exclusion Criteria:

• Patients who are candidates for and willing to receive intensive induction chemotherapy.
• Prior use of a hypomethylating agent.
• Prior use of cytotoxic chemotherapy for any myeloid malignancy (prior immunosuppressive therapy is permitted provided that treatment is stopped within 8 weeks from study entry; hydroxyurea is allowed through the end of cycle 1 on study).
• Previous hematopoietic stem cell transplant.
• Prior treatment with a licensed or experimental smoothened inhibitor (SMOi) and/or hypomethylating agent (HMA).
• Participation in a clinical study involving an investigational drug(s) (Phases 1-4) within 4 weeks prior to study entry or within 5 half-lives of the investigational agent, whichever is greater.
• Major surgery or radiation within 12 weeks prior to study entry.
• Patients known to be refractory to platelet or packed red cell transfusions as per institutional guidelines, or who are known to refuse or who are likely to refuse blood product support.
• Treatment with hematopoietic growth factors including: erythropoietin, granulocyte colony stimulating factor (G-CSF), and granulocyte macrophage colony stimulating factor (GM-CSF), or thrombopoietin receptor agonists within 3 weeks prior to study entry.
• Any ongoing medical condition requiring chronic use of moderate to high dose steroids (defined as ≥10 mg/day of prednisone or equipotent dose of another corticosteroid).
• Any anti-cancer treatment within 2 weeks prior to study entry (including hydroxyurea as above).
• Current use or anticipated requirement for drugs that are known moderate to strong CYP3A4 inducers (Appendix 2).
• Presence of concurrent active malignancy requiring active systemic therapy
• Patients with known active, uncontrolled bacterial, fungal or viral infection, including hepatitis B (HBV), hepatitis C (HCV), known human immunodeficiency virus (HIV), or acquired immunodeficiency syndrome (AIDS) related illness.
• Known uncontrolled central nervous system (CNS) involvement.
• Poorly-controlled active medical conditions that as per investigator judgement would interfere with the conduct of the study.
• Active cardiac dysrhythmias of NCI CTCAE Grade ≥2 (e.g. atrial fibrillation) or QTcF interval >470 msec.
• Pregnant or breastfeeding female patients.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: TREATMENT
• Allocation: RANDOMIZED
• Interventional Model: PARALLEL
• Masking: SINGLE

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
EXPERIMENTAL: DAC5; Glasdegib will be administered at the starting dose of 100 mg orally once daily and continuously in combination with either DAC5 (decitabine 20 mg/m2 IV on a 5-day schedule) or DAC10 (decitabine 20 mg/m2 IV on a 10-day schedule) as per randomization. Treatment will be administered in 28-day cycles.	Drug: Glasdegib; Glasdegib will be administered at the starting dose of 100 mg orally once daily.; Drug: Decitabine; Decitabine will be administered per local label and will be administered by IV infusion at a dose of 20 mg/m2/day for either 5 days or 10 days as determined by randomization. Each cycle will be every 28 days.
EXPERIMENTAL: DAC10; Glasdegib will be administered at the starting dose of 100 mg orally once daily and continuously in combination with either DAC5 (decitabine 20 mg/m2 IV on a 5-day schedule) or DAC10 (decitabine 20 mg/m2 IV on a 10-day schedule) as per randomization. Treatment will be administered in 28-day cycles.	Drug: Glasdegib; Glasdegib will be administered at the starting dose of 100 mg orally once daily.; Drug: Decitabine; Decitabine will be administered per local label and will be administered by IV infusion at a dose of 20 mg/m2/day for either 5 days or 10 days as determined by randomization. Each cycle will be every 28 days.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
CR/CRi	The complete remission (CR) and complete remission with incomplete count recovery (CRi) combined rate will be defined by the 2017 European LeukemiaNet (ELN) AML response criteria.	Up to 2 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
OS	Overall survival (OS) is defined as the time from date of first study treatment to date of death due to any cause.	Up to 2 years
EFS	Event-free survival (EFS) will be monitored up to 2 years.	Up to 2 years
RFS	Relapse-free survival (RFS) will be monitored up to 2 years.	Up to 2 years
Time to CR/CRi	The time to complete remission (CR) and complete remission with incomplete count recovery (CRi) will be collected as a secondary outcome.	Up to 2 years
Duration of CR/CRi	The duration of complete remission (CR) and complete remission with incomplete count recovery (CRi) will be collected as a secondary outcome.	Up to 2 years
Bone Marrow Mutational Clearance	Bone marrow mutational clearance of frequently-mutated genes in AML (e.g. NPM1, CEBPA, DNMT3A, RUNX1, TET2, IDH1/2) via next-generation DNA sequencing will be monitored up to 2 years.	Up to 2 years

Collaborators and Investigators

• Sponsor: Yale University
• Collaborators: Pfizer
• Investigators: Principal Investigator: Amer M Zeidan, MBBS, Yale University - MEDCCC Hematology-Section

Study record dates

Study Major Dates

• Study Start (ACTUAL): December 6, 2019
• Primary Completion (ACTUAL): June 9, 2020
• Study Completion (ACTUAL): June 9, 2020

Study Registration Dates

• First Submitted: August 7, 2019
• First Submitted That Met QC Criteria: August 7, 2019
• First Posted (ACTUAL): August 9, 2019

Study Record Updates

• Last Update Posted (ACTUAL): October 15, 2021
• Last Update Submitted That Met QC Criteria: September 18, 2021
• Last Verified: September 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Histologic Type; Neoplasms; Leukemia; Leukemia, Myeloid; Leukemia, Myeloid, Acute; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Decitabine
• Other Study ID Numbers: 2000024738

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No