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An Open Label Phase II Pharmacokinetic and Pharmacodynamic Assessment of the Potential for QTc Prolongation Following First Induction Treatment With CPX-351 (Cytarabine:Daunorubicin) Liposome Injection in Acute Leukemias and MDS Patients

An Open Label Phase II Pharmacokinetic and Pharmacodynamic Assessment of the Potential for QTc Prolongation Following First Induction Treatment With CPX-351 (Cytarabine:Daunorubicin) Liposome Injection in Acute Leukemias and MDS Patients

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02238925
Enrollment
26
Registered
2014-09-12
Start date
2014-07-31
Completion date
2016-01-31
Last updated
2017-11-30

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

Conditions

Acute Lymphoblastic Leukemia (ALL), Acute Myeloid Leukemia (AML), Myelodysplastic Syndrome (MDS)

Keywords

Newly Diagnosed AML, Secondary AML, Relapsed/Refractory AML, Relapsed/Refractory ALL, MDS

Brief summary

The purpose of this study is to assess the effects of CPX-351 on cardiac repolarization, assess plasma drug levels, asses serum copper levels, and assess drug levels in urine. Efficacy and Safety will be assessed in all patients enrolled to the study.

Detailed description

This study is an open-label, single-arm, Phase II, PK and pharmacodynamic (PD) trial of CPX-351 in patients with documented acute leukemia (AML or ALL) or MDS (IPSS score ≥ 1.5) and suitable for treatment with intensive chemotherapy. Each patient will be screened for hepatic impairment. Hepatic impairment will be assessed using the Child-Pugh system and only patients with a Child-Pugh score \<7 points will be eligible for this study. Patients will receive up to two inductions and four consolidation courses. Patients will be monitored for safety (early deaths, adverse events, metabolic changes, etc.) and efficacy (response for AML, ALL, and MDS) while on the study.

Interventions

DRUGCPX-351

Sponsors

Jazz Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Ability to understand and voluntarily sign an informed consent form * Age ≥ 18 to ≤ 80 years at the time of signing the informed consent form * Life expectancy of at least 3 months * Pathological confirmation by bone marrow documenting the following: * Newly Diagnosed De novo AML according to WHO criteria except for Acute Promyelocytic Leukemia or patients with known favorable cytogenetics (see exclusion) * Newly Diagnosed Secondary AML age \<60 years and ≥76 to 80 years, defined as having a history of an antecedent hematologic disorder (myelodysplastic syndromes \[MDS\], myeloproliferative disease \[MPD\]or history of cytotoxic treatment for non-hematologic malignancy) * Patients with relapsed/refractory AML regardless of cytogenetic risk * Patients with relapsed/refractory ALL * Patients with MDS (IPSS score ≥ 1.5) * Eastern Cooperative Oncology Group (ECOG) performance status score of 0-2 * Able to adhere to the study visit schedule and other protocol requirements * Laboratory values fulfilling the following: * Serum Creatinine ≤ 2.0mg/dL * Hepatic function with a score of \< 7 points according to the Child-Pugh System * Serum alanine aminotransferase or aspartate aminotransferase \< 3 times the ULN. Note: If elevated liver enzymes are related to disease; contact medical monitor to discuss. * Cardiac ejection fraction ≥50% by ECHO or MUGA * Screening and Baseline QTcF (Fridericia's) less than 470 msec * Patients with second malignancies in remission may be eligible if there is clinical evidence of disease stability for a period of greater than 6 months off cytotoxic chemotherapy, documented by imaging, tumor marker studies, etc., at screening. Patients maintained on long-term non-chemotherapy treatment, e.g., hormonal therapy, are eligible. * All men and women must agree to practice effective contraception during the study period if not otherwise documented to be infertile.

Exclusion criteria

* Patients eligible for participation in Study CLTR0310-301 (Phase III study of CPX-351 NCT01696084) or who have already participated in that study are not eligible for this study. * Patients taking medications known to prolong the QTc interval directly or that interact pharmacodynamically with medicines to prolong the QTc interval. * Rhythm abnormalities (other than sinus bradycardia with HR \< 50 bpm) * AV block (other than 1o AV Block with PR \> 200 msec) * Bundle branch block or QRS ≥ 120 msec * Abnormal T wave morphology (other than slight flattening) * Pathological U waves * Other QRS or T/U morphology preventing accurate determination of QT interval * Patients with unexplained syncope, history of or known risk factors for torsade des pointes, including congenital long QT syndrome, or family history of LQTS. * Patients with history of and/or current evidence of myocardial impairment (e.g. cardiomyopathy, ischemic heart disease, significant valvular dysfunction, hypertensive heart disease, and congestive heart failure) resulting in heart failure by New York Heart Association Criteria (Class III or IV staging) * Newly diagnosed patients with Acute promyelocytic leukemia \[t(15;17)\] or favorable cytogenetics, including t(8;21) or inv16 * Clinical evidence of active CNS leukemic involvement * Chemotherapy or other investigational anticancer therapeutic drugs within 1 week prior to study entry unless AEs have resolved and there is no interference with the assessment of efficacy or safety; in the event of rapidly proliferative disease, however, the use of hydroxyurea is permitted up to 12 hours before study entry. Patients with prior bone marrow or stem cell transplant, considered for inclusion, should be discussed with the medical monitor first. * Any serious medical condition or psychiatric illness that would prevent the patient from providing informed consent * Patients with prior cumulative anthracycline exposure of greater than 368 mg/m2 daunorubicin (or equivalent) * Active or uncontrolled infection. Patients with any infection receiving treatment (antibiotic, antifungal or antiviral treatment) may be entered into the study but must be afebrile and hemodynamically stable for ≥72 hrs. Patients with fevers believed to be due to leukemia or MDS are eligible provided a thorough infection work-up is negative and the patient is clinically and hemodynamically stable. * Pregnant or lactating women * Hypersensitivity to cytarabine, daunorubicin or liposomal products * History of Wilson's disease or other copper-related metabolic disorder

Design outcomes

Primary

MeasureTime frameDescription
Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)21 daysTime-matched QTcF Changes From Baseline after the start of first infusion

Secondary

MeasureTime frameDescription
Serum Copper Levels Change From BaselineDuring 1st induction (up to 5 days)Change from Baseline to Induction 1, Day 5
Complete Response RateFollowing 1st induction, following 2nd induction if applicable
TmaxInduction 1, Day 5
CmaxInduction 1, Day 5

Countries

United States

Participant flow

Participants by arm

ArmCount
CPX-351
Single Arm Study (Patients may receive up to 2 Inductions and up to 4 Consolidations): Induction 1: CPX-351 will be given intravenously at 100units/m2 on days 1, 3, and 5 over a 90 minute infusion. Induction 2: CPX-351 will be given intravenously at 100units/m2 on days 1 and 3 over a 90 minute infusion. Consolidations: CPX-351 will be given intravenously at 65units/m2 on days 1 and 3 over a 90 minute infusion. CPX-351
26
Total26

Baseline characteristics

CharacteristicCPX-351
Age, Continuous65.2 years
STANDARD_DEVIATION 9.31
Sex: Female, Male
Female
12 Participants
Sex: Female, Male
Male
14 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
26 / 26
serious
Total, serious adverse events
8 / 26

Outcome results

Primary

Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)

Time-matched QTcF Changes From Baseline after the start of first infusion

Time frame: 21 days

Population: All subjects who received any dose of study drug and had at least 1 time-matched change from baseline in ECG parameters.

ArmMeasureGroupValue (MEAN)Dispersion
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 0.75 h0.6 msecsStandard Deviation 15.13
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 1.5 h-1.2 msecsStandard Deviation 13.3
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 2 h4.3 msecsStandard Deviation 15.96
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 3 h5.3 msecsStandard Deviation 15.17
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 4 h8.0 msecsStandard Deviation 11.69
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 6 h-0.1 msecsStandard Deviation 11.24
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 8 h4.8 msecsStandard Deviation 8.52
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 12 h-2.3 msecsStandard Deviation 10.43
CPX-351Effect of CPX-351 on Cardiac Ventricular Repolarization (QTcF)Time-point 24 h-6.2 msecsStandard Deviation 13.91
Secondary

Cmax

Time frame: Induction 1, Day 5

ArmMeasureGroupValue (MEAN)Dispersion
CPX-351CmaxCytarabine62200 ng/mlStandard Deviation 20900
CPX-351CmaxAra-U1240 ng/mlStandard Deviation 252
CPX-351CmaxDaunorubicin26000 ng/mlStandard Deviation 8510
CPX-351CmaxDaunorubicinol147 ng/mlStandard Deviation 52.3
Secondary

Complete Response Rate

Time frame: Following 1st induction, following 2nd induction if applicable

Population: Efficacy population: All subjects who received at least 1 dose of study drug.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
CPX-351Complete Response Rate8 Participants
Secondary

Serum Copper Levels Change From Baseline

Change from Baseline to Induction 1, Day 5

Time frame: During 1st induction (up to 5 days)

Population: All subjects who received at least 1 dose of study drug and copper data were collected.

ArmMeasureValue (MEAN)Dispersion
CPX-351Serum Copper Levels Change From Baseline64.95 μg/dLStandard Deviation 51.119
Secondary

Tmax

Time frame: Induction 1, Day 5

ArmMeasureGroupValue (MEDIAN)
CPX-351TmaxCytarabine2.00 hours
CPX-351TmaxAra-U8.00 hours
CPX-351TmaxDaunorubicin2.00 hours
CPX-351TmaxDaunorubicinol26.00 hours

Source: ClinicalTrials.gov · Data processed: Mar 3, 2026