The purpose of this study is 2-fold: initially, in the dose escalation phase, the goal is to determine the safety profile of orally administered brigatinib, including: the maximum tolerated dose (MTD), dose limiting toxicities (DLTs), recommended phase 2 dose (RP2D), and pharmacokinetic (PK) profile. Then, once the RP2D is established, an expansion phase will assess the preliminary anti-tumor activity of brigatinib, both in non-small cell lung cancer (NSCLC) with ALK gene rearrangement (including participants with active brain metastases) or mutated EGFR, and in other cancers with abnormal targets against which brigatinib is active.
The drug being tested in this study is called brigatinib (AP26113). Brigatinib is being tested to treat people with NSCLC. This study will look at the safety, tolerability and efficacy of brigatinib. The study enrolled 137 patients. Participants were assigned to one of the following treatment groups: * Brigatinib 30 mg once daily (QD)/60 mg QD * Brigatinib 90 mg QD * Brigatinib 120 mg QD/60 mg twice daily (BID) * Brigatinib 90 mg QD-180 mg QD * Brigatinib 180 mg QD/90 mg BID * Brigatinib 240 mg QD/120 mg BID/300 mg QD This multi-center trial will be conducted worldwide. The overall expected time to participate in this study is approximately 4 years. Participants will make multiple visits to the clinic, and 30 days after the End-of-Treatment visit. Follow-up is intended to continue for at least 2 years after the initial dose.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
137
Brigatinib tablets and capsules.
Recommended Phase 2 Dose (RP2D) of Brigatinib
The RP2D is the maximum tolerated dose (MTD) or less. The MTD is defined as the dose range at which ≤ 1 of 6 evaluable participants experience dose limiting toxicities (DLT) within the first 28 days of treatment (end of Cycle 1).
Time frame: 28 days
Objective Response Rate (ORR)
ORR assessed by the investigator, is defined as the percentage of the participants with complete response (CR) or partial response (PR) according to Response Evaluation Criteria in Solid tumors (RECIST) v1.1 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 normalization of tumor marker level. PR: at least a 30% decrease in the sum of the longest diameters (SLD) of target lesions, taking as reference the baseline sum diameters. Crzb=Crizotinib.
Time frame: From Screening and at 8-week intervals thereafter up to end of the study (up to 8.4 years)
Number of Participants Who Had at Least One Treatment-Emergent Adverse Event (TEAE)
An Adverse Event (AE) is 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 treatment-emergent adverse event (TEAE) is 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 the study treatment or the investigator/participant decision to discontinue treatment, whichever occurs first (approximately up to 7.4 years)
Maximum Tolerated Dose (MTD) Assessed in Dose Escalation Phase of the Study
The MTD is defined as the highest dose at which ≤ 1 of 6 evaluable participants experience a DLT within the first 28 days of treatment (end of Cycle 1).
Time frame: Up to Cycle 1 (28 days)
Number of Participants With Dose Limiting Toxicities (DLTs) Assessed in Dose Escalation Phase of the Study
DLT include any toxicity that is possibly, probably, or definitely drug-related. Toxicity grades will be defined by the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v 4.0. DLTs are defined by the following: A) Non-hematologic toxicities: Any grade ≥3 non-hematologic toxicity, with the exception of self-limiting or medically controllable toxicities (eg, nausea, vomiting, fatigue, electrolyte disturbances, hypersensitivity reactions) lasting \< 3 days, and excluding alopecia. B) Hematologic toxicities: Febrile neutropenia not related to underlying disease (fever, \> 101°F; ANC\<500); Prolonged grade 4 neutropenia (\> 7 days); Neutropenic infection: ≥ grade 3 neutropenia with ≥ grade 3 infection; Thrombocytopenia ≥ grade 3 with bleeding or grade 4 lasting ≥ 7 days. C) Missed ≥ 25% of planned doses of brigatinib over 28 days due to treatment-related AEs in the first cycle.
Time frame: Up to Cycle 1 (28 days)
Cmax: Maximum Observed Plasma Concentration for Brigatinib at Cycle 1 Day 1
Time frame: Cycle 1 (28-days cycle): Day 1
Cmax: Maximum Observed Plasma Concentration for Brigatinib at Cycle 2 Day 1
Time frame: Cycle 2 (28-days cycle): Day 1
Tmax: Time to Reach the Maximum Observed Plasma Concentration (Cmax) for Brigatinib at Cycle 1 Day 1
Time frame: Cycle 1 (28-days cycle): Day 1
Tmax: Time to Reach the Maximum Observed Plasma Concentration (Cmax) for Brigatinib at Cycle 2 Day 1
Time frame: Cycle 2 (28-days cycle): Day 1
AUC(0-24): Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours Post-dose for Brigatinib at Cycle 1 Day 1
Time frame: Cycle 1 (28-days cycle): Day 1 multiple time points (up to 24 hours) post-dose
AUC(0-24): Area Under the Plasma Concentration-Time Curve From Time 0 to 24 Hours Post-dose for Brigatinib at Cycle 2 Day 1
Time frame: Cycle 2 (28-days cycle): Day 1 multiple time points (up to 24 hours) post-dose
T1/2: Terminal Phase Elimination Half-life for Brigatinib at Cycle 2 Day 1
Time frame: Cycle 2 (28-days cycle): Day 1
Best Overall Response
Best overall response is defined as percentage of participants with CR, PR, stable disease (SD) or progressive disease (PD) as per of RECIST v1.1 as evaluated by investigator. 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 normalization of tumor marker level. PR: at least a 30% decrease in the SLD of target lesions, taking as reference the baseline sum diameters. Disease progression for target lesion: SLD increased by at least 20% from smallest value on study and SLD must also demonstrate an absolute increase of at least 5 mm or development of any new lesion. PD for non-target lesion: unequivocal progression of existing non-target lesions. SD for neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for PD.
Time frame: Screening and at 8-week intervals thereafter up to end of the study (up to 8.4 years)
Duration of Response
Duration of response is defined as time interval from time that measurement criteria are first met for CR/PR (whichever is first recorded) until first date that progressive disease is objectively documented or death due to any cause. Participants who did not progress nor die were censored at 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 normalization of tumor marker level.PR:at least a 30% decrease in SLD of target lesions.PD for target lesion:SLD increased by at least 20% from smallest value and must also demonstrate an absolute increase of \>=5 mm or development of any new lesion.PD for non-target lesion:unequivocal progression of existing non-target lesions.Duration of response calculated by Kaplan-Meier estimation.
Time frame: Screening and at 8-week intervals thereafter up to end of the study (up to 8.4 years)
Progression Free Survival (PFS)
PFS is 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).
Time frame: Screening and at 8-week intervals thereafter up to end of the study (up to 8.4 years)
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.
Time frame: Screening and at 8-week intervals thereafter up to end of the study (up to 8.4 years)
Intracranial Objective Response Rate
Intracranial objective response rate is defined as the percentage of the participants with CR or PR in the intracranial CNS per modification of RECIST v1.1 after the initiation of study drug. CR for target lesion: disappearance of all extranodal lesions. CR for non-target lesion: disappearance of all extranodal non-target lesions and normalization of tumor marker level. PR: at least a 30% decrease in the sum of the longest diameters (SLD) of target lesions, taking as reference the baseline sum diameters.
Time frame: Screening and at 8-week intervals thereafter (approximately up to 50 months)
Duration of Intracranial Response
Intracranial duration of response is defined as the time interval from the time that the measurement criteria are first met for CR/PR in brain metastases (whichever is first recorded) until the first date that progressive disease is objectively documented or death due to any cause. Participants who did not progress nor die were censored at the last valid response assessment. Duration intracranial of response was calculated by Kaplan-Meier estimation.
Time frame: Screening and at 8-week intervals thereafter (approximately up to 50 months)
Intracranial Progression Free Survival (PFS)
PFS is defined as the time interval from the date of the first dose of the study treatment until the first date at which disease progression in brain, or death due to any cause, whichever occurs first. Intracranial PFS was calculated by Kaplan-Meier estimation.
Time frame: Screening and at 8-week intervals thereafter (approximately up to 50 months)
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.