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CPX-351 or CLAG-M Regimen for the Treatment of Acute Myeloid Leukemia or Other High-Grade Myeloid Neoplasms in Medically Less-Fit Patients

Randomized Phase 2 Trial of CPX-351 (Vyxeos) vs. CLAG-M (Cladribine, Cytarabine, G-CSF, and Mitoxantrone) in Medically Less-Fit Adults With Acute Myeloid Leukemia (AML) or Other High-Grade Myeloid Neoplasm

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04195945
Enrollment
60
Registered
2019-12-12
Start date
2020-05-27
Completion date
2027-12-31
Last updated
2026-05-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Myeloid Leukemia, Myeloid Neoplasm

Keywords

Myeloid and Monocytic Leukemia, Other Hematopoietic

Brief summary

This phase II trial studies how well CPX-351 or the CLAG-M regimen (consisting of the drugs cladribine, cytarabine, G-CSF, and mitoxantrone) works in treating medically less-fit patients with acute myeloid leukemia or other high-grade myeloid neoplasms. Drugs used in chemotherapy, such as CPX-351, cladribine, cytarabine, G-CSF, and mitoxantrone, 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 CPX-351 or the CLAG-M regimen at doses typically used for medically-fit patients with acute myeloid leukemia may work better than reduced doses of CPX-351 in treating medically less-fit patients with acute myeloid leukemia or other high-grade myeloid neoplasms.

Detailed description

OUTLINE: Patients are randomized to 1 of 2 arms in a 1:1 fashion. ARM I = CPX-351; ARM II = CLAG-M. ARM I (INDUCTION): Patients receive CPX-351 intravenously (IV) over 90 minutes on days 1, 3, and 5 in the absence of disease progression or unacceptable toxicity. Patients who achieve a response other than an MRDneg CR receive a second course of CPX-351 intravenously IV over 90 minutes on days 1, 3, and 5 in the absence of disease progression or unacceptable toxicity. ARM I (POST-REMISSION): Patients who achieve a CR or CR with incomplete hematologic recovery (CRi) receive a reduced dose of CPX-351 IV over 90 minutes on days 1, 3, and 5 for up to 4 additional courses in the absence of disease progression or unacceptable toxicity. ARM II (INDUCTION): Patients receive cladribine IV over 2 hours on days 1-5, cytarabine IV over 2 hours on days 1-5, G-CSF subcutaneously (SC) on days 0-5, and mitoxantrone IV over 60 minutes on days 1-3 in the absence of disease progression or unacceptable toxicity. Patients who achieve a response other than an MRDneg CR receive a second course of cladribine IV over 2 hours on days 1-5, cytarabine IV over 2 hours on days 1-5, G-CSF SC on days 0-5, and mitoxantrone IV over 60 minutes on days 1-3 in the absence of disease progression or unacceptable toxicity. ARM II (POST-REMISSION): Patients who achieve a CR/CRi receive an intermediate dose of cytarabine IV over 2 hours on days 1-6 for up to 4 additional courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up periodically for up to 5 years.

Interventions

DRUGLiposome-encapsulated Daunorubicin-Cytarabine

Given IV

DRUGCladribine

Given IV

DRUGCytarabine

Given IV

DRUGMitoxantrone

Given IV

OTHERQuestionnaire Administration

Ancillary studies

OTHERQuality-of-Life Assessment

Ancillary studies

Sponsors

Fred Hutchinson Cancer Center
Lead SponsorOTHER
Jazz Pharmaceuticals
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Diagnosis of untreated "high-grade" myeloid neoplasm (\>=10% blasts in blood or bone marrow) or AML other than acute promyelocytic leukemia (APL) with t(15;17)(q22;q12) or variants according to the 2016 World Health Organization (WHO) classification. Outside diagnostic material is acceptable to establish diagnosis; submission of peripheral blood specimen for flow cytometry performed at the study institution should be considered. Diagnostic material must have been submitted for cytogenetic and/or molecular testing as clinically appropriate * Treatment-related mortality (TRM) score \>= 13.1 as calculated with simplified model * The use of hydroxyurea before enrollment is permitted; hydroxyurea should be discontinued prior to start of study treatment. Patients with symptoms/signs of hyperleukocytosis or white blood cells (WBC) \> 100,000/uL or with concern for other complications of high tumor burden or leukostasis (e.g. hypoxia, disseminated intravascular coagulation) can be treated with leukapheresis or may receive up to 2 doses of cytarabine (up to 500 mg/m\^2) any time prior to enrollment * Patients may have received low-intensity treatment (e.g. azacitidine/decitabine, lenalidomide, growth factors) for antecedent low-grade myeloid neoplasm (i.e. \< 10% blasts in blood and bone marrow) * Bilirubin \< 2.0 mg/mL unless elevation is thought to be due to hepatic infiltration by neoplastic cells, Gilbert's syndrome, or hemolysis (assessed within 14 days prior to study day 0) * Left ventricular ejection fraction (LVEF) \>= 45%, assessed within 12 months prior to registration, e.g. by multigated acquisition scan (MUGA) scan or echocardiography or another appropriate diagnostic modality * Women of childbearing potential and men must agree to use adequate contraception beginning at the signing of the consent until at least 4 weeks after the last dose of study drug * Ability to understand and the willingness to sign a written informed consent document

Exclusion criteria

* Myeloid blast crisis of chronic myeloid leukemia (CML), unless patient is not considered candidate for tyrosine kinase inhibitor treatment * Concomitant illness associated with a likely survival of \< 1 year * Active systemic fungal, bacterial, viral, or other infection, unless disease is under treatment with anti-microbials and/or controlled or stable. Patients with fever thought to be likely secondary to leukemia are eligible * Known hypersensitivity to any study drug used in this trial * Pregnancy or active breast feeding * Concurrent treatment with any other approved or investigational anti-leukemia agent. Treatment with a FLT3-inhibitor for FLT3-mutated AML is permissible

Design outcomes

Primary

MeasureTime frameDescription
3-month Overall Survival (OS)Up to 3 months from date of start of protocol therapyWill evaluate whether CPX-351 or cladribine, cytarabine, granulocyte colony-stimulating factor (G-CSF), and mitoxantrone (CLAG-M), at doses typically used for medically-fit adults with AML, improve 3-month overall survival in medically-unfit adults with AML compared to attenuated dose CPX-351 as used in our previous institutional trial (32 units/m2 per dose).

Secondary

MeasureTime frameDescription
Complete Remission (CR) RatesUp to 5 years post treatmentWill compare CR rates between the study arms.
MRDneg CR RatesUp to 5 years post treatmentWill compare MRDneg CR rates between the study arms.
Response DurationUp to 5 years post treatmentWill compare response duration between the study arms.
Relapse-free SurvivalUp to 5 years post treatmentWill compare RFS between the study arms.
Incidence of Adverse EventsAEs were recorded from the time of first exposure to the therapy (start of the first drug administration infusion on day 1) until 4 weeks after the last dose. All-Cause Mortality was monitored from study start to data cut-off dates 5/27/2020 to 9/18/2025Will use the CTCAE (National Cancer Institute \[NCI\] Common Terminology Criteria for Adverse Events) version 5.0 for toxicity and adverse event reporting. Will describe the toxicity profile and infectious complications of each study treatment.
30-day Mortality RateAt 30 days30-day mortality rate from start of treatment
60-day MortalityAt 60 days60-day mortality rate from start of treatment
Quality of Life (QOL): QuestionnaireUp to 5 years post treatmentQOL of patients will be assessed longitudinally using the European Organization for Research and Treatment of Cancer (EORTC) core QOL questionnaire (QLQ-C30) and the newly developed acute myeloid leukemia-specific QOL instrument. QOL measures for Global Health Status (GHS), Functional Score, and Symptom Score were scored on a 0-100 scale with lower scores indicating worse outcomes.
Patient Use of Medical Resources (e.g. Transfusions)Up to 5 years post treatmentElectronic medical chart review to enumerate the number of platelet and red blood cell transfusions administered.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORRoland Walter

Fred Hutch/University of Washington Cancer Consortium

Participant flow

Recruitment details

Participants were recruited based on physician referral at University of Washington Medical Center between May 2020 and March 2025. The frist participant was enrolled on May 27, 2020 and the last participant was enrolled on March 3, 2025.

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
48 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
Age, Continuous72 Years
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
29 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
Race (NIH/OMB)
White
27 Participants
Region of Enrollment
United States
30 Participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
22 / 3025 / 30
other
Total, other adverse events
30 / 3030 / 30
serious
Total, serious adverse events
2 / 306 / 30

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 15, 2026