Testing the Addition of an Anti-cancer Drug, Navtemadlin, to the Usual Treatments (Cytarabine and Idarubicin) in Patients With Acute Myeloid Leukemia
A Phase 1b Study With Expansion Cohort of Escalating Doses of KRT-232 (AMG 232) Administered in Combination With Standard Induction Chemotherapy (Cytarabine and Idarubicin) in Newly Diagnosed Acute Myelogenous Leukemia (AML)
4 other identifiers
interventional
24
1 country
6
Brief Summary
This phase Ib trial studies the side effects and best dose of navtemadlin when given together with the standard chemotherapy drugs cytarabine and idarubicin in patients with acute myeloid leukemia. Navtemadlin may stop the growth of cancer cells by blocking a protein called MDM2 that is needed for cell growth. Chemotherapy drugs, such as cytarabine and idarubicin, 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. Giving navtemadlin with cytarabine and idarubicin may stabilize cancer for longer when compared to giving usual treatments alone.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Feb 2021
Longer than P75 for phase_1
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 6, 2019
CompletedFirst Posted
Study publicly available on registry
December 9, 2019
CompletedStudy Start
First participant enrolled
February 4, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2026
April 13, 2026
December 1, 2025
5.4 years
December 6, 2019
April 9, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Incidence of adverse events
Toxicity will be coded according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Based on the toxicity observed, a derived variable, the occurrence of dose limiting toxicity, will be created. Toxicities will be tabulated and reported according to dose level, grade, type, cycle, and attribution and, if numbers permit, by whether the patient had newly diagnosed or previously treated acute myeloid leukemia (AML). Cumulative incidence curves will be used to estimate the proportion of patients who will discontinue therapy for reasons of toxicity or general inability to tolerate the regimen. The data from all patients treated at the recommended phase 2 dose (RP2D), will be combined for a final summary and listing of toxicities observed.
Up to 30 days after the last dose of navtemadlin
Secondary Outcomes (1)
Pharmacokinetic (PK) profile of navtemadlin in combination with cytarabine and idarubicin
Pre-treatment and 1, 3, 5, 8, and 24 hours post-treatment on cycle 1, day 1 (1 cycle = 28-35 days)
Other Outcomes (5)
Complete response rate to navtemadlin, cytarabine and idarubicin
Up to 2 years
Complete cytogenetic response to navtemadlin, cytarabine and idarubicin
Up to 2 years
Progression-free survival (PFS)
From start of treatment to progression/recurrence or death - whichever comes first, assessed up to 2 years
- +2 more other outcomes
Study Arms (1)
Treatment (navtemadlin, cytarabine, idarubicin)
EXPERIMENTALPatients receive navtemadlin PO QD on days 1-7, cytarabine IV BID over 3 hours on days 1-7, and idarubicin IV over 10-15 minutes on days 1-3. Treatment repeats every 28 days for up to 2 cycles in the absence of disease progression or unacceptable toxicity. Patients with residual disease may receive cytarabine IV BID over 3 hours for 5 days and idarubicin IV over 10-15 minutes for 2 days starting between days 14-21 of cycle 1 or the second cycle of navtemadlin, cytarabine, and idarubicin. Patients who achieve a CR or a CRi in either cycle 1 or 2 may receive cytarabine IV BID over 3 hours on days 1, 3, and 5 for 3-4 additional 28 to 35-day cycles in the absence of disease progression or unacceptable toxicity.
Interventions
Given IV
Given PO
Given IV
Eligibility Criteria
You may qualify if:
- Newly diagnosed and previously untreated AML (except acute promyelocytic leukemia \[APL\]) (\>= 20% blasts in bone marrow or extramedullary leukemia) according to the World Health Organization (WHO), 2016 criteria. Note that patients who have received treatment with hypomethylating agents alone or in combination with venetoclax, ivosidenib or enasidenib for myelodysplastic syndrome (MDS) and have now transformed to AML are eligible.
- Eligible patients must show evidence of wild-type (WT) p53 as assessed by deoxyribonucleic acid (DNA) sequencing before initiation of KRT-232 (AMG 232).
- Patients must be considered candidates for intensive chemotherapy treatment with standard doses of cytarabine and idarubicin ("7+3 regimen").
- Left ventricular ejection fraction (LVEF) \>= 50% as assessed by echocardiogram or radionuclide angiography.
- All non-hematological adverse events of any prior chemotherapy, surgery, or radiotherapy, except alopecia, must have resolved to National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE) grade =\< 2 prior to starting therapy.
- Patient must be willing to submit the blood sampling and bone marrow sampling for the PK and PD analyses and exploratory biomarkers.
- Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 (Karnofsky \>= 60%).
- Prothrombin time (PT) or partial thromboplastin time (PTT) \< 1.5 x upper limit of normal (ULN), OR international normalized ratio (INR) \< 1.5.
- Total bilirubin =\< 2 mg/dl, unless from hemolysis, Gilbert's syndrome or liver infiltration with leukemia.
- Aspartate aminotransferase (AST)(serum glutamic oxaloacetic transaminase \[SGOT\])/alanine aminotransferase (ALT)(serum glutamic pyruvic transaminase \[SGPT\]) =\< 2.5 x institutional ULN (=\< 5 x ULN if liver infiltration with leukemia).
- Alkaline phosphatase (ALP) \< 2.0 x ULN (if liver or bone metastases are present, \< 3.0 x ULN)
- Creatinine within reference laboratory ranges OR glomerular filtration rate (GFR) \>= 50 mL/min/1.73 m\^2 (by the Cockcroft Gault equation), with normalization to the patient's body surface area.
- Human immunodeficiency virus (HIV)-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial.
- Patients with known leukemic involvement of the central nervous system (CNS) are eligible if, in the opinion of the treating physician, they are eligible for induction chemotherapy. These patients can receive the intrathecal treatment concurrently with the study treatment on protocol.
- Patients with a prior or concurrent malignancy whose natural history or treatment does not have the potential to interfere with the safety or efficacy assessment of the investigational regimen are eligible for this trial.
- +3 more criteria
You may not qualify if:
- Patients with evidence of p53 mutation or deletion (e.g. chromosome 17p deletion).
- Patients who have not recovered from adverse events due to prior anti-cancer therapy (i.e., have residual toxicities \> grade 2) with the exception of alopecia.
- Patients receiving any other investigational or commercial agents or therapies administered with the intention to treat their malignancy within 14 days of first receipt of study drug with the exception of: Hydroxyurea (HU) in patients who need to continue this agent to maintain white blood cell (WBC) count =\< 50,000/mm\^3.
- History of allergic reactions attributed to compounds of similar chemical or biologic composition to KRT-232 (AMG 232) or other agents used in study.
- Patients with uncontrolled intercurrent illness including, but not limited to, active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia; patients receiving an anti-microbial agent may be eligible if the patient remains hemodynamically stable for 72 hours; patients with myocardial infarction within 6 months of study day 1, symptomatic congestive heart failure (New York Heart Association \[NYHA\] class III and higher), unstable angina, or cardiac arrhythmia requiring medication are excluded.
- Patients with psychiatric illness/social situations that would limit compliance with study requirements.
- Pregnant women are excluded from this study because KRT-232 (AMG 232) is an MDM2 inhibiting agent with the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with KRT-232 (AMG 232), breastfeeding should be discontinued if the mother is treated with KRT-232 (AMG 232). These potential risks may also apply to other agents used in this study.
- Patients with reproductive potential not willing to use effective methods of contraception.
- Patients with gastrointestinal (GI) tract disease causing the inability to take oral medication, malabsorption syndrome, requirement for intravenous alimentation, prior surgical procedures affecting absorption, uncontrolled inflammatory GI disease (e.g., Crohn's disease, ulcerative colitis).
- Patients with history of bleeding diathesis.
- Positive hepatitis B surface antigen (HepBsAg) (indicative of chronic hepatitis B), positive hepatitis total core antibody with negative HBsAG (suggestive of occult hepatitis B), or detectable hepatitis C virus ribonucleic acid (RNA) by a polymerase-chain reaction (PCR) assay (indicative of active hepatitis C - screening is generally done by hepatitis C antibody \[HepCAb\], followed by hepatitis C virus RNA by PCR if HepCAb is positive).
- All herbal medicines (e.g., St. John's wort), vitamins, and supplements consumed by the subject within the 30 days prior to receiving the first dose of AMG 232, and continuing use, if applicable, will be reviewed by the principal investigator. Patients may continue to take all herbal medicines (e.g., St. John's wort), vitamins, and supplements if approved by the principal investigator.
- Use of any known CYP3A4 substrates with narrow therapeutic window (such as alfentanil, astemizole, cisapride, dihydroergotamine, pimozide, quinidine, sirolimus, or terfanide) within the 14 days prior to receiving the first dose of AMG 232 is not permitted. Other medications (such as fentanyl and oxycodone) may be allowed per investigator's assessment/evaluation. Use of any known CYP2C8 substrates with a narrow therapeutic window within the 14 days prior to receiving the first dose of KRT-232 (AMG 232) is not permitted.
- Use of any medications considered inhibitors or substrates of UGT1A1, or inhibitors or inducers of P-glycoprotein (gp) are not permitted. Caution should be used with concomitant antacids or proton pump inhibitor (PPI) products.
- Major surgery within 28 days of study day 1.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (6)
Los Angeles General Medical Center
Los Angeles, California, 90033, United States
USC / Norris Comprehensive Cancer Center
Los Angeles, California, 90033, United States
Northwestern University
Chicago, Illinois, 60611, United States
University of Maryland/Greenebaum Cancer Center
Baltimore, Maryland, 21201, United States
Laura and Isaac Perlmutter Cancer Center at NYU Langone
New York, New York, 10016, United States
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Kevin R Kelly
City of Hope Comprehensive Cancer Center LAO
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 6, 2019
First Posted
December 9, 2019
Study Start
February 4, 2021
Primary Completion (Estimated)
June 30, 2026
Study Completion (Estimated)
June 30, 2026
Last Updated
April 13, 2026
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will share
NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.