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Ref Type | Journal Article | ||||||||||||
PMID | (28475456) | ||||||||||||
Authors | Kim DW, Tiseo M, Ahn MJ, Reckamp KL, Hansen KH, Kim SW, Huber RM, West HL, Groen HJM, Hochmair MJ, Leighl NB, Gettinger SN, Langer CJ, Paz-Ares Rodríguez LG, Smit EF, Kim ES, Reichmann W, Haluska FG, Kerstein D, Camidge DR | ||||||||||||
Title | Brigatinib in Patients With Crizotinib-Refractory Anaplastic Lymphoma Kinase-Positive Non-Small-Cell Lung Cancer: A Randomized, Multicenter Phase II Trial. | ||||||||||||
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Abstract Text | Purpose Most crizotinib-treated patients with anaplastic lymphoma kinase gene ( ALK)-rearranged non-small-cell lung cancer (ALK-positive NSCLC) eventually experience disease progression. We evaluated two regimens of brigatinib, an investigational next-generation ALK inhibitor, in crizotinib-refractory ALK-positive NSCLC. Patients and Methods Patients were stratified by brain metastases and best response to crizotinib. They were randomly assigned (1:1) to oral brigatinib 90 mg once daily (arm A) or 180 mg once daily with a 7-day lead-in at 90 mg (180 mg once daily [with lead-in]; arm B). Investigator-assessed confirmed objective response rate (ORR) was the primary end point. Results Of 222 patients enrolled (arm A: n = 112, 109 treated; arm B: n = 110, 110 treated), 154 (69%) had baseline brain metastases and 164 of 222 (74%) had received prior chemotherapy. With 8.0-month median follow-up, investigator-assessed confirmed ORR was 45% (97.5% CI, 34% to 56%) in arm A and 54% (97.5% CI, 43% to 65%) in arm B. Investigator-assessed median progression-free survival was 9.2 months (95% CI, 7.4 to 15.6) and 12.9 months (95% CI, 11.1 to not reached) in arms A and B, respectively. Independent review committee-assessed intracranial ORR in patients with measurable brain metastases at baseline was 42% (11 of 26 patients) in arm A and 67% (12 of 18 patients) in arm B. Common treatment-emergent adverse events were nausea (arm A/B, 33%/40%), diarrhea (arm A/B, 19%/38%), headache (arm A/B, 28%/27%), and cough (arm A/B, 18%/34%), and were mainly grades 1 to 2. A subset of pulmonary adverse events with early onset (median onset: day 2) occurred in 14 of 219 treated patients (all grades, 6%; grade ≥ 3, 3%); none occurred after escalation to 180 mg in arm B. Seven of 14 patients were successfully retreated with brigatinib. Conclusion Brigatinib yielded substantial whole-body and intracranial responses as well as robust progression-free survival; 180 mg (with lead-in) showed consistently better efficacy than 90 mg, with acceptable safety. |
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Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
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Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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ALK rearrange | lung non-small cell carcinoma | sensitive | Brigatinib | FDA approved - Has Companion Diagnostic | Actionable | In a Phase II trial (ALTA) that supported FDA approval, Alunbrig (brigatinib) treatment resulted in an overall response rate of 45% (51/112) in the 90mg arm and 54% (59/110) in the 180mg arm, and median progression-free survival of 9.2 and 11.0 months respectively, in ALK-rearranged (fusion) non-small cell lung carcinoma patients who progressed on Xalkori (crizotinib) (PMID: 28475456; NCT02094573). | detail... 28475456 |
ALK fusion | lung non-small cell carcinoma | sensitive | Brigatinib | FDA approved - Has Companion Diagnostic | Actionable | In a Phase II trial (ALTA) that supported FDA approval, Alunbrig (brigatinib) treatment resulted in an overall response rate of 45% (51/112) in the 90mg arm and 54% (59/110) in the 180mg arm, and median progression-free survival of 9.2 and 11.0 months respectively, in ALK-rearranged (fusion) non-small cell lung carcinoma patients who progressed on Xalkori (crizotinib) (PMID: 28475456; NCT02094573). | 28475456 detail... |