This is a phase III study of BMS-354825 in subjects with chronic phase Philadelphia chromosome or BCR-ABL positive chronic myelogenous leukemia, who are resistant or intolerant to imatinib mesylate (Gleevec).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
724
Percent of Participants With Major Cytogenetic Response (MCyR) at 6 Months Follow-Up
Cytogenetic response (CyR) was based on the number of Philadelphia chromosome positive (Ph+) metaphases among cells in metaphase on a Bone Marrow (BM) sample. The criteria for CyR were as follows: Complete cytogenetic response (CCyR): 0% Ph+ cells in metaphase in BM; Partial cytogenetic response (PCyR): \>0 to 35% Ph+ cells in metaphase in BM; Minor cytogenetic response: \>35 to 65% Ph+ cells in metaphase in BM; Minimal cytogenetic response: \>65 to 95% Ph+ cells in metaphase in BM; No cytogenetic response: \>95 to 100% Ph+ cells in metaphase in BM; Best CyR was defined as the best response obtained at any time during the study; MCyR was defined as a best CyR of complete cytogenetic response (CCyR) or partial cytogenetic response (PCyR). Baseline=closest to, but no later than, the first day of study drug for treated participants and closest to, but no later than, the date of randomization, for those who were randomized but who never received treatment, unless otherwise specified.
Time frame: 6 months
Percent of Participants With MCyR At or Prior to 24 Months Follow-Up
CyR was based on the number of Ph+ metaphases among cells in metaphase on a Bone Marrow (BM) sample. The criteria for CyR were as follows: CCyR: 0% Ph+ cells in metaphase in BM; PCyR: \>0 to 35% Ph+ cells in metaphase in BM; Minor cytogenetic response: \>35 to 65% Ph+ cells in metaphase in BM; Minimal cytogenetic response: \>65 to 95% Ph+ cells in metaphase in BM; No cytogenetic response: \>95 to 100% Ph+ cells in metaphase in BM; Best CyR was defined as the best response obtained at any time during the study; MCyR was defined as a best CyR of CCyR or PCyR. Baseline=closest to, but no later than, the first day of study drug for treated participants and closest to, but no later than, the date of randomization, for those who were randomized but who never received treatment, unless otherwise specified.
Time frame: 24 months
Percent of Participants With Complete Hematologic Response (CHR) at 6 and 24 Months Follow-Up
A complete hematologic response (CHR) was obtained when all the following criteria were met: White Blood Cells (WBC) ≤ institutional upper limit of normal (ULN); Platelets \< 450,000/mm³; No blasts or promyelocytes in peripheral blood (PB); \< 5% myelocytes plus metamyelocytes in PB; Basophils in PB \< 20%; No extramedullary involvement (including no splenomegaly or hepatomegaly). Hematologic responses were counted anytime following 14 days after the dosing start date.
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Tablets, Oral, 140 mg QD, indefinitely, survival study
University Of Alabama At Birmingham
Birmingham, Alabama, United States
Central Hematology Oncology Medical Group Inc.
Alhambra, California, United States
Pacific Cancer Medical Center Inc
Anaheim, California, United States
Loma Linda University Cancer Center
Loma Linda, California, United States
Pacific Shores Medical Group
Long Beach, California, United States
Ucla Dept. Of Medicine
Los Angeles, California, United States
Ventura County Hematology-Oncology Specialists
Oxnard, California, United States
Kaiser Permanente Medical Center
Vallejo, California, United States
Georgetown University Med Ctr
Washington D.C., District of Columbia, United States
Washington Cancer Institute At Washington Hospital Center
Washington D.C., District of Columbia, United States
...and 127 more locations
Time frame: 6 months, 24 months
Time to MCyR in Participants With MCyR at 6 Months Follow-Up
Time to MCyR was defined as the time from the first dosing date until criteria were first met for CCyR or PCyR, whichever occurred first. Non-responders were censored at the maximum time of all participants in their respective group (ie, maximum between time to MCyR response for responders and time to last cytogenetic assessment for non-responders).
Time frame: 6 months
Time to CHR in Participants With CHR at 6 Months Follow-Up
Time to CHR was defined as the time from the first dosing date until criteria are first met for the response. Non-responders were censored at the maximum time of all participants in their respective group (ie, maximum between time to CHR response for responders and time to last hematologic assessment for non-responders).
Time frame: 6 months
Time to MCyR in Participants With MCyR at 24 Months Follow-Up
Time to MCyR was defined as the time from the first dosing date until criteria were first met for CCyR or PCyR, whichever occurred first. Non-responders were censored at the maximum time of all participants in their respective group (ie, maximum between time to MCyR response for responders and time to last cytogenetic assessment for non-responders). Cytogenetic assessments were not done after the 2 Year Follow-up.
Time frame: 24 months
Time to CHR in Participants With CHR At 24 Months Follow-Up
Time to CHR was defined as the time from the first dosing date until criteria are first met for the response. Non-responders were censored at the maximum time of all participants in their respective group (ie, maximum between time to CHR response for responders and time to last hematologic assessment for non-responders). Cytogenetic assessments were not done after the 2 Year Follow-up.
Time frame: 24 months
Number of Participants With MCyR Whose Disease Progressed by 24 Months
Progression in a participant=participant achieved a CHR and no longer met the criteria consistently over consecutive 2-weeks after starting their maximum dose; had no CHR after receiving their maximum dose and had an increase in white blood count (WBC) defined as a doubling of the count from the lowest value to \>20,000/mm\^3 or an increase by \> 50,000/mm\^3 on two assessments performed at least 2 weeks apart; participant met criteria of accelerated or blast phase CML at any time; had a MCyR and subsequently no longer met the criteria for MCyR after starting their maximum dose; had a ≥ 30% absolute increase in the number of Ph+ metaphases. Although a related secondary endpoint was estimated duration of MCyR, medium duration of MCyR could not be estimated because the majority of participants with MCyR continued to respond, or could not be reliably estimated because of the large number of censored participants. Cytogenetic assessments were not done after the 24 month follow-up.
Time frame: 24 months
Number of Participants With CHR Whose Disease Progressed by 24 Months
Progression in a participant=achieved a CHR and subsequently no longer met the criteria consistently over a consecutive 2-week period after starting their maximum dose; had no CHR after receiving their maximum dose and had an increase in white blood count (WBC) defined as a doubling of the count from the lowest value to \>20,000/mm\^3 or an increase by \> 50,000/mm\^3 on two assessments performed at least 2 weeks apart; met the criteria of accelerated or blast phase CML at any time; had a MCyR and subsequently no longer met the criteria for MCyR after starting their maximum dose; had a ≥ 30% absolute increase in the number of Ph+ metaphases. Although a related secondary endpoint was estimated duration of CHR, medium duration of CHR could not be estimated because the majority of participants with CHR continued to respond, or could not be reliably estimated because of the large number of censored participants.
Time frame: 24 months
Number of Participants With MCyR and Baseline BCR-ABL Gene Mutation - All Treated Participants
BCR-ABL mutations were assessed in participants prior to the start of study drug (baseline) and at the time of disease progression or at end of therapy. Quantification of BCR-ABL transcripts in peripheral blood was evaluated using quantitative reverse transcriptase polymerase chain reaction (Q-RT-PCR, RT-PCR).
Time frame: Baseline up to 24 months
Percent of Imatinib-Resistant Participants With Progression Free Survival (PFS) at 24, 36, 48, 60, 72, and 84 Months Follow-Up
PFS= time from randomization until: CHR achieved and participant subsequently no longer met criteria for CHR over 2 weeks; no CHR after receiving maximum dose and an increase in WBC (ie, doubling of the count from the lowest value to \> 20,000/mm\^3 or an increase by \> 50,000/mm\^3 on 2 assessments performed 2 weeks apart); participant met criteria of accelerated phase or blast phase CML; participant had MCyR and subsequently no longer met criteria for MCyR after starting maximum dose; participant had a ≥ 30% absolute increase in number of Ph+ metaphases. Deaths without a reported prior progression were considered to have progressed on the date of death; those who neither progressed nor died were censored on the date of their last cytogenetic or hematologic assessment. When first progression reported during follow-up, it was censored at last on-study assessment. If the first progression reported during follow-up was death, participant considered to have progressed at date of death.
Time frame: 24, 36, 48, 60, 72, and 84 months
Percent of Imatinib-Resistant Participants With Overall Survival (OS) at 24, 36, 48, 60, 72, and 84 Months Follow-Up
Overall survival (OS) was defined as the time from randomization until death. Survival data were collected for up to 5 years on participants who had discontinued dasatinib treatment. Participants who did not die or who were lost to follow-up were censored on the last date the participant was known to be alive.
Time frame: 24, 36, 48, 60, 72, and 84 months
Percent of Participants Intolerant to Imatinib With MCyR at 6 Months and at 24 Months Follow-Up, by QD and BID Schedules and by Total Daily Dose
CyR was based on the number of Ph+ metaphases among cells in metaphase on a BM sample. The criteria for CyR were as follows: complete cytogenetic response (CCyR): 0% Ph+ cells in metaphase in BM; PCyR: \>0 to 35% Ph+ cells in metaphase in BM; Minor cytogenetic response: \>35 to 65% Ph+ cells in metaphase in BM; Minimal cytogenetic response: \>65 to 95% Ph+ cells in metaphase in BM; No cytogenetic response: \>95 to 100% Ph+ cells in metaphase in BM; Best CyR was defined as the best response obtained at any time during the study; MCyR was defined as a best CyR of CCyR or PCyR.
Time frame: 6 months, 24 months
Percent of Participants Intolerant to Imatinib With CHR at 6 Months and at 24 Months Follow-Up
A CHR was obtained when all the following criteria were met: White Blood Cells (WBC) ≤ institutional upper limit of normal (ULN); Platelets \< 450,000/mm³; No blasts or promyelocytes in peripheral blood (PB); \< 5% myelocytes plus metamyelocytes in PB; Basophils in PB \< 20%; No extramedullary involvement (including no splenomegaly or hepatomegaly). Hematologic responses were counted anytime following 14 days after the dosing start date.
Time frame: 6 months, 24 months
Percent of Imatinib Intolerant Participants With Progression Free Survival After 24, 36, 48, 60, 72, and 84 Months of Follow-Up
PFS= time from randomization until: CHR achieved and participant subsequently no longer met criteria for CHR over 2 weeks; no CHR after receiving maximum dose and an increase in WBC (ie, doubling of the count from the lowest value to \> 20,000/mm\^3 or an increase by \> 50,000/mm\^3 on 2 assessments performed 2 weeks apart); participant met criteria of accelerated phase or blast phase CML; participant had MCyR and subsequently no longer met criteria for MCyR after starting maximum dose; participant had a ≥ 30% absolute increase in number of Ph+ metaphases. Deaths without a reported prior progression were considered to have progressed on the date of death; those who neither progressed nor died were censored on the date of their last cytogenetic or hematologic assessment. When first progression reported during follow-up, it was censored at last on-study assessment. If the first progression reported during follow-up was death, participant considered to have progressed at date of death.
Time frame: 24, 36, 48, 60, 72, and 84 months
Percent of Imatinib Intolerant Participants With Overall Survival After 24, 36, 48, 60, 72, and 84 Months of Follow-up
Overall survival (OS) was defined as the time from randomization until death. Survival data were collected for up to 5 years on participants who had discontinued dasatinib treatment. Participants who did not die or who were lost to follow-up were censored on the last date the participant was known to be alive.
Time frame: 24, 36, 48, 60, 72, and 84 months
Percent of All Randomized Participants With Cytogenic and Hematologic Response by Dosing Schedule (QD or BID) and by Total Daily Dose (100 mg or 140 mg) at 6 Months Follow-Up
Complete cytogenetic response (CCyR): 0% Ph+ cells in metaphase in BM. Partial cytogenetic response (PCyR): \>0 to 35% Ph+ cells in metaphase in BM. MCyR: best cytogenetic response of CCyR or PCyR. A complete hematologic response (CHR) was obtained when all the following criteria were met: White Blood Cells (WBC) ≤ institutional upper limit of normal (ULN); Platelets \< 450,000/mm³; No blasts or promyelocytes in peripheral blood (PB); \< 5% myelocytes plus metamyelocytes in PB; Basophils in PB \< 20%; No extramedullary involvement (including no splenomegaly or hepatomegaly). Hematologic responses were counted anytime following 14 days after the dosing start date.
Time frame: 6 months
Percent of All Randomized Participants With Cytogenic and Hematologic Response by Dosing Schedule (QD or BID) and by Total Daily Dose (100 mg or 140 mg) at 24 Months Follow-Up
Complete cytogenetic response (CCyR): 0% Ph+ cells in metaphase in BM. Partial cytogenetic response (PCyR): \>0 to 35% Ph+ cells in metaphase in BM. MCyR: best cytogenetic response of CCyR or PCyR. A complete hematologic response (CHR) was obtained when all the following criteria were met: White Blood Cells (WBC) ≤ institutional upper limit of normal (ULN); Platelets \< 450,000/mm³; No blasts or promyelocytes in peripheral blood (PB); \< 5% myelocytes plus metamyelocytes in PB; Basophils in PB \< 20%; No extramedullary involvement (including no splenomegaly or hepatomegaly). Hematologic responses were counted anytime following 14 days after the dosing start date. No cytogenic assessments were made after 2 years of follow-up.
Time frame: 24 months
Percent of Participants With Progression Free Survival (PFS) at 24, 36, 48, 60, 72, and 84 Months Follow-Up by Dose Schedule and Total Daily Dose - All Randomized Participants
PFS= time from randomization until: CHR achieved and participant subsequently no longer met criteria for CHR over 2 weeks; no CHR after receiving maximum dose and an increase in WBC (ie, doubling of the count from the lowest value to \> 20,000/mm\^3 or an increase by \> 50,000/mm\^3 on 2 assessments performed 2 weeks apart); participant met criteria of accelerated phase or blast phase CML; participant had MCyR and subsequently no longer met criteria for MCyR after starting maximum dose; participant had a ≥ 30% absolute increase in number of Ph+ metaphases. Deaths without a reported prior progression were considered to have progressed on the date of death; those who neither progressed nor died were censored on the date of their last cytogenetic or hematologic assessment. When first progression reported during follow-up, it was censored at last on-study assessment. If the first progression reported during follow-up was death, participant considered to have progressed at date of death.
Time frame: 24, 36, 48, 60, 72, and 84 months
Percent of Participants Overall Survival at 24, 36, 48, 60, 72, and 84 Months Follow-Up - All Randomized Participants
Overall survival (OS) was defined as the time from randomization until death. Survival data were collected for up to 5 years on participants who had discontinued dasatinib treatment. Participants who did not die or who were lost to follow-up were censored on the last date the participant was known to be alive.
Time frame: 24, 36, 48, 60, 72, and 84 months
Number of Participants With Death, Serious Adverse Events (SAEs), Adverse Events (AEs) That Led to Treatment Discontinuation at 24 Months of Follow-up
AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Treatment-related=having certain, probable, possible, or missing relationship to study drug. Baseline=closest to, but no later than, the first day of study drug for treated participants.
Time frame: Baseline to 30 days post last dose, up to 24 months
Number of Participants With Death, Serious Adverse Events (SAEs), Adverse Events (AEs) That Led toTreatment Discontinuation After 7 Year Follow-up
AE=any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not have a causal relationship with treatment. SAE=a medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency/abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Treatment-related=having certain, probable, possible, or missing relationship to study drug. Baseline=closest to, but no later than, the first day of study drug for treated participants. After the 2-year analysis and Protocol Amendment 02, those on a BID dosing schedule were allowed to switch to a QD dosing schedule. Due to the large number of participants switching from BID dosing to QD dosing, the abbreviated dosing data collection method incorporated in Amendment 03, the overall safety data are presented for the 100 mg QD group and combined for the other treatment groups.
Time frame: Baseline to 30 days post last dose, up to 7 years (study closure July 2014)