This phase I trial studies the best dose and side effects of M3814 when given in combination with mitoxantrone, etoposide, and cytarabine in treating patients with acute myeloid leukemia that has come back (relapsed) or does not respond to treatment (refractory). M3814 may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as mitoxantrone and cytarabine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Etoposide is in a class of medications known as podophyllotoxin derivatives. It blocks a certain enzyme needed for cell division and DNA repair and may kill cancer cells. Giving M3814 in combination with mitoxantrone, etoposide, and cytarabine may lower the chance of the acute myeloid leukemia growing or spreading.
PRIMARY OBJECTIVE: I. To assess the safety and tolerability and determine the recommended phase two dose (RP2D) of peposertib (M3814) in combination with mitoxantrone, etoposide, and cytarabine (MEC) in patients with relapsed or refractory (R/R) acute myeloid leukemia (AML). SECONDARY OBJECTIVES: I. To characterize the pharmacokinetic (PK) profile of MEC alone and of M3814 in combination with MEC. II. To evaluate the preliminary efficacy of M3814 in combination with MEC in patients with R/R AML as measured by the response rate (complete remission \[CR\] plus CR with incomplete count recovery \[CRi\]), duration of CR/CRi (DOR), event-free survival (EFS) and overall survival (OS). EXPLORATORY OBJECTIVES: I. To evaluate correlative biomarkers of M3814 target engagement and response. II. To correlate cytogenetic and molecular abnormalities with response. III. To evaluate the rates of early mortality and allogeneic hematopoietic cell transplantation. IV. To perform molecular profiling assays on malignant and normal tissues, including, but not limited to, whole exome sequencing (WES) and messenger ribonucleic acid (RNA) sequencing (RNAseq), in order to: IVa. Identify potential predictive and prognostic biomarkers beyond any genomic alteration by which treatment may be assigned; IVb. Identify resistance mechanisms using genomic deoxyribonucleic acid (DNA)- and RNA-based assessment platforms. V. To contribute genetic analysis data from de-identified biospecimens to Genomic Data Commons (GDC), a well annotated cancer molecular and clinical data repository, for current and future research; specimens will be annotated with key clinical data, including presentation, diagnosis, staging, summary treatment, and if possible, outcome. OUTLINE: This is a dose-escalation study of peposertib followed by a dose-expansion study. Patients receive peposertib orally (PO) twice daily (BID) on days 2-21, mitoxantrone intravenously (IV) over 15 minutes, etoposide IV over 60 minutes and cytarabine IV over 60 minutes on days 1-5 in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo echocardiogram (ECHO) or multigated acquisition scan (MUGA) during baseline, and blood collection and bone marrow biopsy throughout the study. After completion of study treatment, patients are followed up at 30 days, every 3 months for 1 year, then every 6 months thereafter up to 5 years.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
48
Undergo blood sample collection
Undergo bone marrow biopsy
Given IV
Undergo ECHO
Given IV
Given IV
Undergo MUGA
Given PO
City of Hope Comprehensive Cancer Center
Duarte, California, United States
Los Angeles General Medical Center
Los Angeles, California, United States
USC / Norris Comprehensive Cancer Center
Los Angeles, California, United States
USC Norris Oncology/Hematology-Newport Beach
Newport Beach, California, United States
Keck Medical Center of USC Pasadena
Pasadena, California, United States
University of California Davis Comprehensive Cancer Center
Sacramento, California, United States
UM Sylvester Comprehensive Cancer Center at Coral Gables
Coral Gables, Florida, United States
UM Sylvester Comprehensive Cancer Center at Deerfield Beach
Deerfield Beach, Florida, United States
University of Miami Miller School of Medicine-Sylvester Cancer Center
Miami, Florida, United States
UM Sylvester Comprehensive Cancer Center at Plantation
Plantation, Florida, United States
...and 5 more locations
Incidence of adverse events
Coded according to the Common Terminology Criteria for Adverse Events version 5.
Time frame: Up to 5 years
Pharmacokinetic (PK) profile of M3814 in combination with mitoxantrone, etoposide, and cytarabine (MEC)
Individual PK parameters will be estimated for maximum concentration, area under the concentration-time curve, half-life, apparent clearance, and apparent volume of distribution using non-compartmental methods. The PK variables will be tabulated and descriptive statistics (e.g., geometric means and coefficients of variation) calculated for each dose level. PK parameters will be reported descriptively for exploratory comparison with historical data.
Time frame: Days 1 and 5
Overall response rate
Defined as the proportion of subjects with complete remission (CR) plus CR with incomplete count recovery (CRi) using European Leukemia Net response criteria. The percent of CR will be calculated and associated exact 95% confidence intervals will be constructed.
Time frame: Up to 5 years
Duration of CR/CRi
Summarized using Kaplan-Meier plots.
Time frame: From first documented CR/CRi response to relapse, assessed up to 5 years
Event-free survival
Summarized using Kaplan-Meier plots.
Time frame: From study entry to treatment failure (lack of response, i.e., no CR or CRi), relapse from CR or CRi, or death from any cause, assessed up to 5 years
Overall survival
Summarized using Kaplan-Meier plots.
Time frame: From study entry to death from any cause, assessed up to 2 years
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