The purpose of this study is to evaluate the efficacy and safety of two different dosing regimens of brigatinib (AP26113) in participants with ALK-positive locally advanced or metastatic non-small cell lung cancer (NSCLC) whose disease has progressed on therapy with crizotinib.
The drug being tested in this study is called brigatinib (AP26113). Brigatinib was tested to treat people with anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) who have progressed on or were intolerant to crizotinib. This study looked at the efficacy of brigatinib. The study enrolled 222 patients. Participants were randomly assigned (by chance, like flipping a coin) to one of the two treatment groups: * Brigatinib 90 mg * Brigatinib 90 mg -180 mg All participants were asked to take a tablet, orally once daily until disease progression or intolerable toxicity. Participants in Brigatinib 90 mg - 180 mg received 180 mg with a 7-day lead-in at 90 mg. This multi-center trial was conducted worldwide. The overall time to participate in this study is up to 3 years. Participants will make multiple visits to the clinic, and 3 months after the End-of-Treatment visit. Follow-up is intended to continue for 2 years after the last participants was enrolled into the study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
222
Brigatinib tablets
Confirmed Objective Response Rate (ORR) as Assessed by Investigator
ORR assessed by the investigator, was defined as percentage of the participants with confirmed complete response (CR) or partial response (PR) according to response evaluation criteria in solid tumors (RECIST) v1.1 (confirmed ≥4 weeks after initial response), after initiation of study treatment. CR for target lesion: disappearance of all extranodal lesions and all pathological lymph nodes must have decreased to \<10 mm in short axis. CR for non-target lesion: Disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least 30% decrease in the sum of the longest diameters (SLD) of target lesions, taking as reference the baseline sum diameters. The exact 2-sided 97.5% confidence interval was calculated. The treatment regimen was considered to have achieved the primary objective when lower bound of the 97.5% confidence interval for ORR assessed by investigator is greater than 20%.
Time frame: Screening, at 8-week intervals thereafter (on Day 1 of every odd-numbered Cycle of 28-days) through 15 Cycles and every 3 Cycles thereafter until disease progression or up to end of the study (approximately up to 69 months)
Confirmed Objective Response Rate (ORR) as Assessed by Independent Review Committee (IRC)
ORR assessed by the IRC, was defined as the percentage of the participants with CR or PR according to RECIST v1.1 (confirmed ≥4 weeks after initial response), after the initiation of study treatment. CR for target lesion: disappearance of all extranodal lesions and all pathological lymph nodes must have decreased to \<10 mm in short axis. CR for non-target lesion: Disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least a 30% decrease in theSLD of target lesions, taking as reference the baseline sum diameters. The exact 2-sided 95% confidence interval was calculated.
Time frame: Screening, at 8-week intervals thereafter (on Day 1 of every odd-numbered Cycle of 28-days) through 15 Cycles and every 3 Cycles thereafter until disease progression or up to end of the study (approximately up to 69 months)
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Confirmed Intracranial Central Nervous System Objective Response Rate (CNS ORR) in Participants With Measurable Active Brain Metastases
Confirmed intracranial CNS ORR was defined as the percentage of the participants with CR or PR in the intracranial CNS per modification of RECIST v1.1 as evaluated by IRC after the initiation of study drug. Confirmed responses were those that persisted on repeat imaging 4 weeks or more after initial response. CR for target lesion: disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis). CR for non-target lesion: disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least a 30% decrease in the SLD of target lesions, taking as reference the Baseline sum diameters.
Time frame: Screening, at 8-week intervals thereafter (on Day 1 of every odd-numbered Cycle of 28-days) through 15 Cycles and every 3 Cycles thereafter until disease progression or approximately up to 29 months
Confirmed Intracranial Central Nervous System Objective Response Rate (CNS ORR) in Participants With Only Non-measurable Active Brain Metastases
Confirmed intracranial CNS ORR is defined as the percentage of the participants with CR or PR in the intracranial CNS per modification of RECIST v1.1 as evaluated by IRC after the initiation of study drug. Confirmed responses were those that persisted on repeat imaging 4 weeks or more after initial response. CR for target lesion: disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis). CR for non-target lesion: disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least a 30% decrease in the SLD of target lesions, taking as reference the Baseline sum diameters.
Time frame: Screening, at 8-week intervals thereafter (on Day 1 of every odd-numbered Cycle of 28-days) through 15 Cycles and every 3 Cycles thereafter until disease progression or approximately up to 29 months
Intracranial CNS Progression Free Survival (PFS) in Participants With Active Brain Metastases
Intracranial CNS PFS as evaluated by IRC is defined as the time interval from the date of the first dose of the study drug until the first date at which intracranial CNS disease progression, an increase of 20% or more in the sum of diameters of intracranial CNS target lesions, unequivocal progression of non-target lesions, or the appearance of new lesions in the intracranial CNS, was objectively documented by a scan, or death due to any cause, whichever occurred first. The analysis was based on the Kaplan-Meier (KM) Estimates.
Time frame: Screening, at 8-week intervals thereafter (on Day 1 of every odd-numbered Cycle of 28-days) through 15 Cycles and every 3 Cycles thereafter until disease progression or approximately up to 29 months
Time to Response
Time to response was defined as the time interval from the date of the first dose of the study drug until the initial observation of CR or PR for participants with confirmed CR/PR. CR for target lesion: disappearance of all extranodal lesions and all pathological lymph nodes must have decreased to \<10 mm in short axis. CR for non-target lesion: Disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least a 30% decrease in the SLD of target lesions, taking as reference the Baseline sum diameters.
Time frame: Up to approximately 69 months
Duration of Response
Duration of response was defined as the time interval from the time that the measurement criteria are first met for CR/PR (whichever is first recorded) until the first date that the progressive disease is objectively documented or death. Patients without progressive disease or death were censored at the last valid response assessment. CR for target lesion: disappearance of all extranodal lesions and all pathological lymph nodes must have decreased to \<10 mm in short axis. CR for non-target lesion: Disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least a 30% decrease in the SLD of target lesions, taking as reference the baseline sum diameters. The analysis was based on the Kaplan-Meier (KM) Estimates.
Time frame: Up to approximately 69 months
Time on Treatment
Time on treatment was defined as the time from the first to the last dose of study drug. For participants who have not discontinued, time on treatment was censored as of the last dose of the study drug.
Time frame: Up to approximately 69 months
Disease Control Rate (DCR)
DCR was defined as the percentage of randomized participants who were confirmed to have achieved CR or PR or have a best overall response as stable disease (SD) for 6 weeks or more after initiation of the study drug. CR for target lesion: disappearance of all extranodal lesions and all pathological lymph nodes must have decreased to \<10 mm in short axis. CR for non-target lesion: Disappearance of all extranodal non-target lesions, all lymph nodes must be non-pathological in size (\<10mm short axis) and norrmalization of tumor marker level. PR: at least a 30% decrease in the SLD of target lesions, taking as reference the baseline sum diameters. SD: Neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease (PD). PD was defined as at least a 20% increase in the sum of diameters of target lesions.
Time frame: Screening, at 8-week intervals thereafter (on Day 1 of every odd-numbered Cycle of 28-days) through 15 Cycles and every 3 Cycles thereafter until disease progression or up to end of the study (approximately up to 69 months)
Progression Free Survival (PFS)
PFS was defined as the time interval from the date of the first dose of the study treatment until the first date at which disease progression is objectively documented, or death due to any cause, whichever occurs first. Disease progression for target lesion: SLD increased by at least 20% from the smallest value on study (including Baseline, if that is the smallest) and SLD must also demonstrate an absolute increase of at least 5 mm or development of any new lesion. Disease progression for non-target lesion: Unequivocal progression of existing non-target lesions. (Subjective judgment by experienced reader). The analysis was based on the Kaplan-Meier (KM) Estimates.
Time frame: Up to approximately 69 months
Overall Survival (OS)
OS is defined as the time interval from the date of the first dose of the study treatment until death due to any cause. Intracranial OS was calculated by Kaplan-Meier estimation.
Time frame: Up to approximately 69 months
Number of Participants Who Had at Least One Treatment-Emergent Adverse Event (TEAE)
An Adverse Event (AE) was defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. A TEAE was defined as an adverse event with an onset that occurs after receiving study drug.
Time frame: From first dose of study drug up to 30 days following the last dose of study drug (approximately up to 69 months)
Pre-dose Brigatinib Plasma Concentration
Time frame: Day 1 Cycles 2, 3, 4 and 5 (each Cycle of 28-days) pre-dose
Patient-reported Symptoms Global Health Status/Quality of Life (QoL) Scores
Patient-reported symptoms global health status/quality of life (QoL) scores were based on questions 29 and 30 of the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-C30 (QLQ-C30). The first 28 questions used 4-point scale (1=not at all,2=a little,3=quite a bit,4=very much) for evaluating 5 functional scales (physical, role, cognitive, emotional, and social functioning); 3 symptom scales (fatigue, pain, and nausea/vomiting); and last 2 questions on global health status/QoL scale are coded on 7-point scale (1=very poor to 7=excellent). Six single-item scales also are included (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties). Raw scores for multi-item scales and single-item measures was linearly transformed to obtain the score ranging from 0 to 100, where higher score represents a higher ("better") level of functioning.
Time frame: Baseline and at each 28-day cycle up to end of the study (up to approximately 69 months)