Evaluation of CPX-351 Monotherapy in Acute Myeloid Leukemia Secondary to Myeloproliferative Neoplasm

NCT04992949 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 42

Last updated 2024-10-29

No results posted yet for this study

Summary

The three classic myeloproliferative neoplasms (MPNs) include polycythemia Vera (PV), essential thrombocythemia (ET) and primary myelofibrosis (PMF). The natural history of these MPNs is the possible progression to acute myeloid leukemia (MPN-blast phase) at variable percentage depending the entity. Leukemic transformation of MPN occurs in 8% to 23% of primary myelofibrosis (PMF) patients in the first 10 years after diagnosis and in 4% to 8% of polycythemia vera (PV) and essential thrombocytosis (ET) patients within 18 years after diagnosis. The risk for leukemic transformation is increased by exposure to cytotoxic chemotherapy. The molecular pathogenesis of MPN-blast phase remains an area of active research.

The prognosis of blast phase MPNs is very poor : approximately 50% of the patients are deemed eligible for intensive treatment (ie. conventional induction chemotherapy regimen with anthracyclines and cytarabine). The patients who are not fit for such intensive treatment approach due to age or comorbidities, are treated with Hypomethylating agents, low dose palliative chemotherapy, or supportive care. Nevertheless, there is a need for more effective and better tolerated treatment approaches in order to increase the response rate and hence, the transplant rates which should translate into improved survival.

CPX-351 is a new formulation of cytarabine and daunorubicin encapsulated at a fixed 5:1 molar-ratio in liposomes that exploits molar ratio-dependent drug-drug synergy to enhance antileukemic efficacy.

Based on similarities between post-myelodysplastic syndrome (MDS) and post-MPN secondary AML in terms of disease resistance to chemotherapy, of fragile patient profile, The hypotheses made is that CPX-351 may improve the results of induction chemotherapy without increasing its toxicity and therefore may increase the proportion of patients who could benefit from an allogeneic Stem Cell Transplantation (SCT).

Conditions

Interventions

DRUG

CPX-351

Induction : patients will receive induction treatment with CPX-351 100 U/m2 on days 1, 3, and 5. Patients who fail to achieve CR/CRi after the induction cycle will be offered a second induction course of CPX-351 100 U/m2 on days 1 and 3, at the investigators' discretion. If CR/CRi is not achieved following the second induction cycle, patients will go off study Consolidation : patients in CR/CRi after induction cycle will receive up to 2 course of consolidation therapy with CPX-351 65 U/m2 on days 1 and 3. CPX351 doses could be reduced to 65 U/m2 on day 1 in case of unacceptable toxicity following the previous course. Allo-SCT : patients for whom an allo-SCT is planned will receive a maximum of one consolidation cycle

Sponsors & Collaborators

  • Acute Leukemia French Association

    collaborator OTHER
  • French Intergroup of Myeloproliferative syndromes

    collaborator UNKNOWN
  • French Innovative Leukemia Organisation

    lead OTHER

Principal Investigators

  • Jérôme REY, MD · French Innovative Leukemia Organisation

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-03-23
Primary Completion
2023-10-15
Completion
2023-12-04

Countries

  • France

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04992949 on ClinicalTrials.gov