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CPX-351 (Vyxeos™) for Transplant Eligible, Higher Risk Patients With Myelodysplastic Syndrome

A Pilot Study of CPX-351 (Vyxeos™) for Transplant Eligible, Higher Risk Patients With Myelodysplastic Syndrome

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03572764
Enrollment
20
Registered
2018-06-28
Start date
2018-12-14
Completion date
2027-03-25
Last updated
2025-04-09

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

Conditions

Myelodysplastic Syndromes

Brief summary

This is a pilot and feasibility study of transplant eligible, higher risk myelodysplastic syndrome (MDS) patients to determine the safety and tolerability of a lower -dose and higher-dose CPX-351 regimen, with secondary objectives including complete remission (CR) rates and proportion of patients proceeding to transplant.

Interventions

DRUGCPX-351

-CPX-351 will be provided by Jazz Pharmaceuticals

PROCEDUREResearch skin biopsy

-And/or buccal swab * Pre-treatment * Post-induction (no earlier than Day 28 and no later than Day 56 from last induction)

* Pre-treatment * Post-induction (no earlier than Day 28 and no later than Day 56 from last induction) * Post-consolidation 1 (if applicable) * Post-consolidation 2 (if applicable) * Post-transplant Day 30 (if applicable) * Post-transplant Day 100 (if applicable)

PROCEDUREResearch bone marrow aspirate

* Pre-treatment * Post-induction (no earlier than Day 28 and no later than Day 56 from last induction) * Post-consolidation 1 (if applicable) * Post-consolidation 2 (if applicable) * Post-transplant Day 30 (if applicable) * Post-transplant Day 100 (if applicable)

Sponsors

Washington University School of Medicine
Lead SponsorOTHER
Jazz Pharmaceuticals
CollaboratorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of myelodysplastic syndrome (MDS) with an IPSS-R score of Intermediate, High or Very High (see Appendix A) AND ≥ 5% myeloblasts in the bone marrow. * Age 18-70 years. * ECOG performance status ≤ 2 (see Appendix B) Adequate renal and hepatic function as defined below: \*Total bilirubin ≤ 2.0 x IULN\* * AST(SGOT)/ALT(SGPT) ≤ 3.0 x IULN * Serum creatinine ≤ 2.0 mg/dL * Note: If, in the opinition of the treatment physician, the bilirubin is elevated secondary to hemolysis or Gilbert's disease, the patient may be eligible after discussion with the Washington University PI. * Left ventricular cardiac ejection fraction ≥ 50% by echocardiography or MUGA. * Deemed by the treating physician to be a suitable candidate for cytotoxic induction therapy and an alloHCT candidate at the time of enrollment. * Women of childbearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control, abstinence) prior to study entry and continuing until 30 days after the last study treatment. * Ability to understand and willingness to sign an IRB approved written informed consent document (or that of legally authorized representative, if applicable).

Exclusion criteria

* Prior treatment for MDS with disease-modifying therapy (conventional or investigational) (i.e. hypomethylator therapy, lenalidomide, or prior AML-like induction therapy intended for the therapy of MDS). Use of prior growth factor and ESA support is permitted. * Currently receiving any other investigational agents. * A history of allergic reactions attributed to compounds of similar chemical or biologic composition to CPX-351 or other agents used in the study. * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia. * History of Wilson's disease or other copper-metabolism disorder. * Pregnant and/or breastfeeding. Women of childbearing potential must have a negative pregnancy test within 14 days of study entry. * Known active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV). Patients who are seropositive because of hepatitis B virus vaccine are eligible. Patients who are seropositive for HCV but have a negative viral load are also eligible provided that the patient has completed a course of therapy for HCV.

Design outcomes

Primary

MeasureTime frame
Safety and tolerability of a CPX-351 regimen in a transplant eligible, higher risk MDS population as measured by the proportion of participants who experience an adverse event by patient, type of event, and grade of eventThrough 56 days after the last dose

Secondary

MeasureTime frameDescription
Best overall response in MDS patients treated with CPX-35156 days after the last dose-Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Remission duration in MDS patients treated with CPX-351Through 5 years* Defined as the interval from the date complete remission is documented to the date of recurrence. This is determined only for patients achieving a complete remission. * Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Relapse-free survival in MDS patients treated with CPX-351Through 5 years-Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Progression-free survival in MDS patients treated with CPX-351Through 5 years* Defined as the interval from the date of first dose of study drug to disease progression or death from MDS. * Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Overall survival in MDS patients treated with CPX-351Through 5 years-Defined as the date of first dose of study drug to the date of death from any cause.
Complete remission + marrow complete remission rates in patients treated with CPX-35156 days after the last dose-Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Overall response rate in MDS patients treated with CPX-35156 days after the last dose* Overall response rate = complete remission + marrow complete remission + partial response + hematologic improvement * Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Safety and feasibility of CPX-351 consolidation therapy in MDS patients as measured by the proportion of patients who experience an adverse event by patient, type of event, and grade of eventThrough 56 days after the last dose
Proportion of MDS patients treated with CPX-351 proceeding to allogeneic hematopoietic cell transplantThrough 56 days after the last dose
Overall survival in MDS patients treated with CPX-351 in patients undergoing allogeneic hematopoietic cell transplantDay 100-Defined as the date of first dose of study drug to the date of death from any cause.
Non-relapse mortality in MDS patients treated with CPX-351 in patients undergoing allogeneic hematopoietic cell transplantDay 100
Event-free survival in MDS patients treated with CPX-351 in patients undergoing allogeneic hematopoietic cell transplantDay 100* Defined as the interval from the date of first dose of study drug to date of treatment failure, recurrence, or death due to any cause. * Patients will be assessed for response according to modified International Working Group (IWG) criteria for MDS
Post-induction mortality in MDS patients treated with CPX-351Day 30-Rate of death

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026