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A Study Being Conducted at Multiple Locations to Compare Safety and Efficacy of Three Different Regimens; (1) High-Dose Lenalidomide; (2) Lenalidomide + Azacitidine; or (3) Azacitidine in Subjects ≥ 65 Years With Newly-Diagnosed Acute Myeloid Leukemia

Phase 2
Completed
Conditions
Acute Myeloid Leukemia
Acute Myelogenous Leukemia
Interventions
Other: Best Supportive Care (BSC)
Registration Number
NCT01358734
Lead Sponsor
Celgene
Brief Summary

The study aim is to compare safety and efficacy of high-dose lenalidomide regimen, sequential azacitidine and lenalidomide and an azacitidine in persons ≥65 years with newly-diagnosed acute myeloid leukemia (AML).

Detailed Description

On September 11, 2013, randomization into the continuous 50 mg lenalidomide only arm was temporarily suspended based on review of the data from the first 13 participants and a high rate of discontinuation (11/13 participants). The Data Monitoring Committee assessed the study data on September 20, 2013 and reported no safety concerns. The high rate of early discontinuation is inconsistent with the treatment duration required for testing the study primary endpoint of survival at one year. Consequently, Celgene has decided not to reopen the lenalidomide only arm.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
88
Inclusion Criteria
  • Newly diagnosed acute myeloid leukemia (AML), AML with antecedent hematologic disorder or therapy-related AML
  • Male or female subjects aged ≥ 65
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1 or 2
  • White blood cell (WBC) count ≤ 10 x 10⁹/L at screening
Exclusion Criteria
  • Previous treatment with azacitidine, decitabine, cytarabine or lenalidomide
  • Previous cytotoxic or biologic treatment of any kind for AML or prior use of targeted therapy agents.
  • Suspected or proven acute promyelocytic leukemia
  • Prior bone marrow or stem cell transplantation
  • Candidate for allogeneic bone marrow or stem cell transplantation
  • AML antecedent hematologic disorder such as chronic myelogenous leukemia or myeloproliferative neoplasms
  • Presence of malignant disease within the previous 12 months with exceptions

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Azacitidine-single agentBest Supportive Care (BSC)Repeated cycles of azacitidine 75mg/m\^2/day subcutaneous on Days 1-7 followed by a 21-day break plus best supportive care
Lenalidomide in combination with azacitidineBest Supportive Care (BSC)Repeated cycles of azacitidine 75 mg/m\^2/day subcutaneous (SC) on Days 1-7 and lenalidomide 50 mg/day by mouth (PO) on Days 8-28 followed by a 14-day break plus best supportive care
Lenalidomide - single agentBest Supportive Care (BSC)Lenalidomide 50 mg PO daily for 28 days for the first 2 cycles and lenalidomide 25 mg daily for 28 days for the next 2 cycles followed by continuous 28-day cycles of lenalidomide 10 mg daily PO plus best supportive care
Azacitidine-single agentAzacitidineRepeated cycles of azacitidine 75mg/m\^2/day subcutaneous on Days 1-7 followed by a 21-day break plus best supportive care
Lenalidomide in combination with azacitidineLenalidomideRepeated cycles of azacitidine 75 mg/m\^2/day subcutaneous (SC) on Days 1-7 and lenalidomide 50 mg/day by mouth (PO) on Days 8-28 followed by a 14-day break plus best supportive care
Lenalidomide in combination with azacitidineAzacitidineRepeated cycles of azacitidine 75 mg/m\^2/day subcutaneous (SC) on Days 1-7 and lenalidomide 50 mg/day by mouth (PO) on Days 8-28 followed by a 14-day break plus best supportive care
Lenalidomide - single agentLenalidomideLenalidomide 50 mg PO daily for 28 days for the first 2 cycles and lenalidomide 25 mg daily for 28 days for the next 2 cycles followed by continuous 28-day cycles of lenalidomide 10 mg daily PO plus best supportive care
Primary Outcome Measures
NameTimeMethod
Overall SurvivalFrom date of randomization until the date of the first documented date of progression or date of death of any cause; the overall median follow-up for survivng participants was 4.1 months (range 0.2 to 54.8 months)

Overall Survival reported at the end of the study are for those participants who were alive at the end of the study

Kaplan Meier Estimates for One Year SurvivalUp to 24 months

One-year survival rate was defined as all deaths within one year from the date of randomization. All others censored at the at year 1 or date of discontinuation

Secondary Outcome Measures
NameTimeMethod
Cytogenetic Complete Remission Rate (CRc)Cytogenetic Complete Remission timeframe was not analyzed.

The CRc response category is comprised of the subset of participants who had abnormal cytogenetics at baseline and subsequently achieved CR during treatment in conjunction with a reversion to a normal karyotype. For the primary definition of CRc, a normal karyotype is defined as no clonal abnormalities after review of at least 10 metaphases using conventional cytogenetic techniques. Cytogenetic complete remission rate (CRc) 1) CR criteria met AND 2) Abnormal karyotype present at baseline AND 3) Reversion to normal karyotype at time of CR (based on ≥ 10 metaphases), where date of cytogenetic sample = date of BM sample used for the CR assessment. Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Event-Free Survival (EFS)Event-Free survival time was not analyzed.

EFS was defined as the interval from the date of randomization to the date of treatment failure, progressive disease, relapse after CR or CRi, or death from any cause, whichever occurred first. Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Relapse-Free Survival (RFS)Relapse-Free survival time frame was not analyzed.

RFS is defined only for subjects that achieve CR and CRi and is measured as the interval from that date to the date of disease relapse, death from any cause, whichever occurs first, censoring at the last visit date for subjects alive in continuous CR/CRi. Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Number of Participants With a Second Primary MalignancyFrom randomization of the last participant up to a minimum of 4 years following discontinuation

Second primary malignancies were monitored as events of interest and reported as serious adverse events regardless of the treatment arm the participant was enrolled in.

Percentage of Participants With a Complete Response or Morphologic Incomplete Response.Complete Response or Morphologic Incomplete Response data not analyzed.

Based on IWG response criteria for AML. Complete remission (CR), morphologic complete remission (CR) was defined as \< 5% bone marrow blasts, an absolute neutrophil count ≥ 1 x 10\^9/L, platelets ≥100 x 10\^9/L, and transfusion independence (no transfusions for 1 week prior to each assessment). No duration of these findings is required for confirmation of this response.

Morphologic CR with incomplete blood count recovery (CRi) was defined as a morphologic complete remission but the ANC count may be \<1 x 10\^9/L and/or the platelet count may be \<100 x 10\^9/L. Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Percentage of Participants With 30-Day Treatment-Related Mortality30 days

30-day mortality rate was defined as death from any cause within 30 days after first dose.

Number of Participants With Treatment Emergent Adverse Events (TEAE)From the first dose of study drug up to 28 days after the last dose of study drug; up to 15 May 2018

TEAEs were defined as those events that started on or after the first day of study drug up until 28 days after the last dose of study drug; Serious AE (SAE) = any AE which results in death; is life-threatening; requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability; is a congenital anomaly/birth defect; constitutes an important medical event. Severity of AEs were graded based upon the participants symptoms according to the Common Terminology Criteria for Adverse Events (CTCAE, Version 4.0); and according to the scale: Grade (Gr) 1 = Mild - transient or mild discomfort; no medical intervention required; Grade 2 = Moderate - mild to moderate limitation in activity; Grade 3 = Severe; Grade 4 = Life threatening; Grade 5 = Death

Duration of Remission (DoR)Duration of Remission (DoR) time frame not analyzed.

Duration of remission was defined as the time from the date of CR or CRi until relapse. Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Percentage of Participants With an Overall Response Rate (CR +CRi+ PR)Overall response rate time frame was not analyzed.

Morphologic complete remission (CR) is defined as a leukemia-free state defined as less than 5% blasts in a one marrow aspirate with spicules and with at least 200 nucleated cells (there should be no blasts with auer rods) and ANC of ≥ 1 x 10\^9/L, a platelet count ≥ 100 x 10\^9/L, no transfusions for 1 week prior to each assessment. No duration of these findings is required for confirmation of this response. Morphologic complete remission with incomplete blood count recovery was defined as a morphologic complete remission but the ANC may be \< 1 x 10\^9/L and/or the platelet count may be \< 100 x 10\^9/L. Partial remission was defined as an ANC \> 1 x 10\^9/L and platelet count ≥ 100 x 10\^9/L with a \> 50% decrease in the percentage of bone marrow blasts to 5% to 25% (a blast count value of ≤ 5% may also be considered a partial remission if auer rods are present). Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Progression-Free Survival (PFS)Progression-Free survival data and time frame was not analyzed.

PFS is defined as the time from randomization to the first observation of documented disease progression or death from any cause whichever occurred first. Because of a high rate of discontinuation in one of the investigational cohorts, secondary endpoints were not analyzed.

Trial Locations

Locations (30)

(240) Cedars-Sinai Medical Center

🇺🇸

Los Angeles, California, United States

(160) The Western Pennsylvania Hospital- Cancer Institute

🇺🇸

Pittsburgh, Pennsylvania, United States

(200) Coastal Integrative Cancer Care

🇺🇸

San Luis Obispo, California, United States

(125) University of Stanford

🇺🇸

Stanford, California, United States

(195) Tulane University Hospital Tulane Cancer Center

🇺🇸

New Orleans, Louisiana, United States

(165) Mount Sinai Medical Center New York

🇺🇸

New York, New York, United States

(205) Greenville Hospital System

🇺🇸

Greenville, South Carolina, United States

(402) Tom Baker Cancer Centre

🇨🇦

Calgary, Alberta, Canada

(401) Cancer Care Manitoba

🇨🇦

Winnipeg, Manitoba, Canada

(403) Queen Elizabeth II Health Sciences Centre - VG Site

🇨🇦

Halifax, Nova Scotia, Canada

(130) UC Davis Medical Center

🇺🇸

Sacramento, California, United States

(230) Tennessee Oncology, PLLC

🇺🇸

Nashville, Tennessee, United States

(115) University of Colorado Anschultz Cancer Center

🇺🇸

Aurora, Colorado, United States

(140) Rush University Medical Center

🇺🇸

Chicago, Illinois, United States

(235) University of Minnesota

🇺🇸

Minneapolis, Minnesota, United States

(155) Cancer Care Centers of South Texas

🇺🇸

San Antonio, Texas, United States

(180) University of California, San Diego

🇺🇸

La Jolla, California, United States

(210) University of Arizona Cancer Center

🇺🇸

Tucson, Arizona, United States

(175) University Lousiville

🇺🇸

Louisville, Kentucky, United States

(150) Billings Clinic

🇺🇸

Billings, Montana, United States

(400) Princess Margaret Hospital

🇨🇦

Toronto, Ontario, Canada

(404) The Ottawa Hospital

🇨🇦

Ottawa, Ontario, Canada

(105) University of Texas Southwestern Medical Center Simmons Comprehensive Cancer Center

🇺🇸

Dallas, Texas, United States

(135) University of Wisconsin

🇺🇸

Madison, Wisconsin, United States

(405) University of Alberta Hospital

🇨🇦

Edmonton, Alberta, Canada

(145) Mount Sinai Comprehensive Cancer Center

🇺🇸

Miami Beach, Florida, United States

(120) Avera Cancer Institute

🇺🇸

Sioux Falls, South Dakota, United States

(185) The University of Kansas Cancer Center

🇺🇸

Westwood, Kansas, United States

(215) Hematology Oncology Medical Group

🇺🇸

Orange, California, United States

(100) Washington University School of Medicine

🇺🇸

Saint Louis, Missouri, United States

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