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Subjects are eligible to receive up to 2 inductions and up to 2 consolidations with CPX-351. The number of inductions and consolidations a subject received depended on response.

Subjects are eligible to receive up to 2 inductions and up to 2 consolidations with cytarabine and daunorubicin given as a 7 + 3, or 5 days of continuous infusion of cytarabine and 2 days of daunorubicin (5+2, second induction, consolidation courses) therapy. The number of inductions and consolidations a subject received depended on response.

First induction: 100 units/m2 by 90-minute IV infusion on Days 1, 3, 5. Second induction: 100 units/m2 by 90-minute IV infusion on Days 1 and 3. Consolidation therapy: 65 units/m2 by 90-minute IV infusion on Days 1 and 3.

CPX-351

First induction: 7+3 was administered as: cytarabine at a dose of 100 mg/m2/day on Days 1 through 7 by continuous infusion, and daunorubicin at a dose of 60 mg/m2/day on Days 1, 2, and 3.

Second induction: 5+2 was administered as: cytarabine at a dose of 100 mg/m2/day on Days 1 through 5 by continuous infusion and daunorubicin at a dose of 60 mg/m2/day on Days 1 and 2.

Consolidation therapy: 5+2 was administered as: cytarabine at a dose of 100 mg/m2/day on Days 1 through 5 by continuous infusion, and daunorubicin at a dose of 60 mg/m2/day on Days 1 and 2.

7+3 (cytarabine and daunorubicin)

To confirm the efficacy of CPX-351 compared to 7+3 as first line therapy in elderly patients (60-75 yrs) with high risk (secondary) Acute Myeloid Leukemia. The primary efficacy endpoint will be overall survival.

Phase III Study of CPX-351 Versus 7+3 in Patients 60-75 Years Old With Untreated High Risk (Secondary) Acute Myeloid Leukemia

Phase III, Multicenter, Randomized, Trial of CPX-351 (Cytarabine:Daunorubicin) Liposome Injection Versus Cytarabine and Daunorubicin in Patients 60-75 Years of Age With Untreated High Risk (Secondary) AML

Overall survival was measured from the date of randomization to death from any cause, subjects not known to have died by the last follow-up were censored on the date they were last known to be alive.

All randomized subjects were assessed for event-free survival (EFS). EFS was defined as the time from study randomization to the date of induction treatment failure (persistent disease), relapse from CR or CRi or death from any cause, whichever came first. Subjects alive and not known to have any of these events were censored on thee date they were last examined on study.

Only subjects achieving CR or CRi were assessed for remission duration.

All randomized subjects with at least 1 evaluable postrandomization bone marrow assessment performed on or after Day 14 after the last induction were assessed for MLFS.

The number and percentage of subjects transferred for HSCT after induction treatment was recorded.

The Leukemia and Lymphoma Society

Jazz Pharmaceuticals

Safety Population: All randomized participants who received at least one dose of study treatment.

Arm A (CPX-351)

Arm B (7+3)

Total

Age, Continuous

Sex: Female, Male

Race (NIH/OMB)

Associate Director, Clinical Trial Disclosure & Transparency

Intent-to-Treat (ITT) Population: All participants randomized in the study.

Overall Survival

Proportion of Subjects With a Response

Event-free Survival

Remission Duration

Rate of Achieving Morphologic Leukemia-free State

Proportion of Subjects Receiving a Stem Cell Transplant

Overall Study

Neoplastic Processes

Pharmaceutical Solutions

CPX-351 has IV administration Vyxeos contains 2.2 mg/mL and 5 mg/mL powder for concentrate for solution for infusion of Daunorubicin and cytarabine.

Each vial contains 44 mg of daunorubicin and 100 mg of cytarabine. After reconstitution, the solution contains 2.2 mg/mL daunorubicin and 5 mg/mL cytarabine

Pau Montesinos Fernández, PhD

José Antonio Pérez Simón, PhD

Carmen López-Carrero García

This protocol corresponds to a prospective, multicentre, open label, phase II study designed to evaluate the efficacy of CPX-351 in elderly patients with secondary or high-risk AML. The clinical trial is divided into pre-treatment, treatment (induction and consolidation cycles) and follow-up periods and consists of a single arm group. Patients will be enrolled at diagnosis to follow the treatment arm. After that will start induction chemotherapy with CPX-351 regimen (14 days maximum screening period). Once a patient have been evaluated for response and recovered from major complications, he/she will start second course (consolidation 1), unless the bone marrow and peripheral blood assessment is showing less than a complete response, then a second induction may be offered. If a CR or CRi is obtained after the second induction course, patients will start the third course after a rest and recovery period. Patients aged between 60 and 65 years old are recommended to undergo an allo-SCT after first consolidation if they are considered fit for this procedure and they have a full matched related or unrelated donor. Patients aged between 65 and 70 years old can be proposed for an allo-SCT in CR/CRi if they have a composite HSCT co-morbidity index /age less than 4 and a suitable fully matched related donor. In patients over 70 years old, an allo-SCT in first CR should be avoided although the decision should be taken on an individual basis. Patients with CR/CRi who are not considered for an allo-SCT, will follow 6 maintenance cycles with modified courses of CPX-351 schedule. Patients showing unacceptable toxicity along all therapeutic phases that, in consideration of the investigator, will be prematurely discontinued. All patients will be followed-up for survival. The study will be analyzed on an intention to treat basis. Bone marrow and response assessments will be done after each induction and consolidation course, and every 3 months during the first 12 months after starting maintenance therapy. Patients will be followed-up for a minimum period of 1 year after the enrolment of the last patient. Additionally, after the end of the trial, patients will be followed-up for 2 years in order to verify survival and the evolution of the disease. Study design allows a maximum of 59 patients.

This is a prospective, multicenter, open-label, phase II study to assess efficacy of CPX-351 in elderly patients (60 to 75 years of age) with newly diagnosed high risk AML. The study includes a single arm group. The primary endpoint of the study is to assess the CR/CRi rate after induction with CPX-351.

Patients will be enrolled at diagnosis to follow the treatment arm. After that they will start induction chemotherapy with CPX-351 regimen (14 days maximum screening period). Once a patient has been evaluated for response and recovered from major complications (minimum 42 days and maximum 80 days after starting the first course), he/she will start second course (consolidation 1), unless the bone marrow and peripheral blood assessment is showing less than a partial response. If a CR or CRi is obtained after the second course, patients will start the third course after a rest and recovery period (minimum 42 days and maximum 80 days after starting the second course). After the third course an assessment of response will be done.

Patients aged between 60 and 65 years old are recommended to undergo an allo-SCT after first consolidation if they are considered fit for this procedure and they have a full matched related or unrelated donor. Patients with age less than 65-70 years old can be proposed for an allogeneic HSCT in CR/CRi if they have a composite HSCT co-morbidity index /age less than 4 and a suitable fully matched related donor. In patients over 70 years old, an allo-SCT in first CR should be avoided although the decision should be taken on an individual basis.

Patients with CR/CRi who are not considered for an allo-SCT, will follow 6 maintenance cycles with modified courses of CPX-351 schedule. Patients showing unacceptable toxicity along all therapeutic phases that, in consideration of the investigator, will be prematurely discontinued. All patients will be followed-up for survival. The study will be analyzed on an intention to treat basis. Bone marrow and response assessments will be done after each induction and consolidation course, and every 3 months after starting maintenance therapy. Patients will be followed-up for a minimum period of 3 years after the enrollment of the last patient in order to know OS, disease-free, and relapse free survival (RFS), as well as on the duration of remission and cumulative incidence of relapse. Patients may be admitted in hospital to receive the experimental treatment.

The clinical trial is divided into pre-treatment (screening), treatment periods (induction, consolidation and maintenance cycles) and follow-up:

Induction cycle (1 cycle):

It will consist of priming with daily administration of G-CSF on days -1, 1 and 2 (300 mcg/m2/day) subcutaneously, CPX-351 day 1, 3 and 5 (100 units/m2/day) IV in 90 minutes infusion, and subcutaneous G-CSF from day 10 to recovery (5 mg/kg/day). The chemotherapy course may be administered in hospital. If a complete response is obtained after the first cycle of treatment, the patient will receive consolidation cycle. If a partial response is obtained after the first cycle of treatment, the patient will receive induction 2. Response to treatment will be determined by the local investigator and will be the basis for treatment decisions. However, if there is any doubt, it should be discussed with the Study coordinator.

Induction 2 (1 cycle, only for patients with PR after induction 1):

It will consist of priming with daily administration of G-CSF on days -1, 1 and 2 (300 mcg/m2/day) subcutaneously, CPX-351 day 1 and 3 (100 units/m2/day) IV in 90 minutes infusion, and subcutaneous G-CSF from day 10 to recovery (5 mg/kg/day). The chemotherapy course may be administered in hospital.

Consolidation cycle (up to 2 cycles):

It will consist of priming with daily administration of G-CSF on days -1, 1 and 2 (300 mcg/m2/day) subcutaneously, CPX-351 day 1 and 3 (65 units/m2/day) IV in 90 minutes infusion, and subcutaneous G-CSF from day 10 to recovery (5 mg/kg/day). The chemotherapy course may be administered in hospital. Patients aged between 60 and 65 years old are recommended to undergo an allo-SCT after first consolidation if they are considered fit for this procedure and they have a full matched related or unrelated donor. Patients with age between 65-70 years old can be proposed for an allogeneic HSCT in CR/CRi if they have a composite HSCT co-morbidity index /age less than 4 and a suitable fully matched related donor. In patients over 70 years old, an allo-SCT in first CR should be avoided although the decision should be taken on an individual basis.

Maintenance cycle (up to 6 cycles):

For patients in CR and when an allo-SCT is not feasible or recommended, a maintenance treatment could be started for up to 6 additional cycles, on every 4 to 8 weeks courses, according to hematologic recovery.

It will consist of CPX-351 day 1 (50 units/m2/day) IV in 90 minutes infusion. Subcutaneous G-CSF may be used to recovery (5 mg/kg/day) in patients with grade 4 neutropenia and confirmed CR.

This protocol corresponds to a prospective, multicenter, open-label, phase II study to assess efficacy of CPX-351 in elderly patients (60 to 75 years of age) with newly diagnosed high risk AML. In the context of this protocol, a treatment cycle is defined as the first day of study drug administration (Day 1) up to and including the day before the first day of the treatment cycle immediately afterwards. The treatment cycles will begin after Day 42 but no later than Day 80, counting from Day 1 of the treatment cycle immediately before.

Treatment cycles may be administered while the patient is hospitalized. Patients will receive a maximum of 4 treatment cycles (up to 2 inductions and 2 consolidations) and 6 maintenance cycles. Clinical conditions in the care of patients with acute leukemia require the need for flexibility. However, deviations from the study treatment defined in this section must be prospectively discussed with the coordinator.

Clinical Trial to Assess the Efficacy and Toxicity of Induction and Consolidation With CPX-351 for Patients Aged 60 to 75 Years With Secondary or High-risk Acute Myeloid Leukemia

A Phase II, Multicentre, Open Label Clinical Trial to Assess the Efficacy and Toxicity of Induction and Consolidation With CPX-351 for Patients Aged 60 to 75 Years With Secondary or High-risk Acute Myeloid Leukemia

The primary endpoint of the study is to evaluate the CR/CRi rate after induction with CPX-351. The responses for CR, CRi, PR, therapeutic failure, and disease recurrence are defined for this study based on the revised recommendations of the International Working Group for response criteria.

Incidence and description of adverse events occurred during induction regimen.

Differences of leukocytes values (x10\^9/L) from baseline values, will be checked in order to know the effect of priming with G-CSF

Incidence and description of adverse events occurred during consolidation regimen.

Incidence and description of adverse events occurred during maintenance regimen.

Incidence and description of hematologic and non-hematologic adverse events occurred during the study.

European Quality of Life-5 Dimensions (EQ-5D)

Frequencies and descriptions of medical resources (antibiotics, transfusions, etc)

Comparison of the different results between patients included in the CPX-351 trial and a retrospective cohort of patients with similarities characteristics at diagnosis (paired analysis). For this purposes, data will be obtained from the retrospective control cohort of the PETHEMA Epidemiologic Registry of Adult AML. Patients will be matched by age (≤65 vs \>65, secondary AML vs therapy-related AML vs high-risk according to 2017ELN).

Measure the number and percentage of patients that start maintenance cycles, and how many discontinues during the manteinance phase or complete all manteinance according to protocol

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization
Phase III Study of CPX-351 Versus 7+3 in Patients 60-75 Years Old With Untreated High Risk (Secondary) Acute Myeloid Leukemia	NCT01696084	High Risk Acute...	CPX-351 7+3 (cytarabine...	60 Years - 75 Years	Jazz Pharmaceuticals
Clinical Trial to Assess the Efficacy and Toxicity of Induction and Consolidation With CPX-351 for Patients Aged 60 to 75 Years With Secondary or High-risk Acute Myeloid Leukemia	NCT04230239	Newly Diagnosed...	CPX-351	60 Years - 75 Years	PETHEMA Foundation
Clinical Trial to Assess the Efficacy and Toxicity of Induction and Consolidation With CPX-351 for Patients Aged 60 to 75 Years With Secondary or High-risk Acute Myeloid Leukemia	NCT04230239	Newly Diagnosed...	CPX-351	60 Years - 75 Years	PETHEMA Foundation
Clinical Trial to Assess the Efficacy and Toxicity of Induction and Consolidation With CPX-351 for Patients Aged 60 to 75 Years With Secondary or High-risk Acute Myeloid Leukemia	NCT04230239	Newly Diagnosed...	CPX-351	60 Years - 75 Years	PETHEMA Foundation

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