Reference Detail

Ref Type Journal Article
PMID (26598747)
Authors Ou SH, Ahn JS, De Petris L, Govindan R, Yang JC, Hughes B, Lena H, Moro-Sibilot D, Bearz A, Ramirez SV, Mekhail T, Spira A, Bordogna W, Balas B, Morcos PN, Monnet A, Zeaiter A, Kim DW
Title Alectinib in Crizotinib-Refractory ALK-Rearranged Non-Small-Cell Lung Cancer: A Phase II Global Study.
Journal Journal of clinical oncology : official journal of the American Society of Clinical Oncology
Vol 34
Issue 7
Date 2016 Mar 01
URL
Abstract Text Crizotinib confers improved progression-free survival compared with chemotherapy in anaplastic lymphoma kinase (ALK)-rearranged non-small-cell lung cancer (NSCLC), but progression invariably occurs. We investigated the efficacy and safety of alectinib, a potent and selective ALK inhibitor with excellent CNS penetration, in patients with crizotinib-refractory ALK-positive NSCLC.Alectinib 600 mg was administered orally twice daily. The primary end point was objective response rate (ORR) by central independent review committee (IRC).Of the 138 patients treated, 84 patients (61%) had CNS metastases at baseline, and 122 were response evaluable (RE) by IRC. ORR by IRC was 50% (95% CI, 41% to 59%), and the median duration of response (DOR) was 11.2 months (95% CI, 9.6 months to not reached). In 96 patients (79%) previously treated with chemotherapy, the ORR was 45% (95% CI, 35% to 55%). Median IRC-assessed progression-free survival for all 138 patients was 8.9 months (95% CI, 5.6 to 11.3 months). CNS disease control rate was 83% (95% CI, 74% to 91%), and the median CNS DOR was 10.3 months (95% CI, 7.6 to 11.2 months). CNS ORR in 35 patients with baseline measurable CNS lesions was 57% (95% CI, 39% to 74%). Of the 23 patients with baseline CNS metastases (measurable or nonmeasurable) and no prior radiation, 10 (43%) had a complete CNS response. At 12 months, the cumulative CNS progression rate (24.8%) was lower than the cumulative non-CNS progression rate (33.2%) for all patients. Common adverse events were constipation (33%), fatigue (26%), and peripheral edema (25%); most were grade 1 to 2.Alectinib is highly active and well tolerated in patients with advanced, crizotinib-refractory ALK-positive NSCLC, including those with CNS metastases.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Therapy Description
Drug Name Trade Name Synonyms Drug Classes Drug Description
Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
ALK rearrange non-small cell lung carcinoma sensitive Alectinib Clinical Study Actionable In a retrospective study, non-small cell lung cancer patients with brain metastases harboring an ALK rearrangement demonstrated prolonged survival following treatment with the combination of an ALK-targeted tyrosine kinase inhibitor, including Alecensa (alectinib), and radiotherapy (PMID: 26438117). 26438117
ALK rearrange non-small cell lung carcinoma sensitive Alectinib Phase II Actionable In a Phase II trial, Alecensa (alectinib) treatment was effective in treating non-small cell lung cancer patients with ALK rearrangement, resulting in a 50% (61/122) objective response rate (ORR) in all patients, a 45% (43/96) ORR in Crizotinib-refractory patients, and an 83% (70/84) CNS disease control rate (PMID: 26598747). 26598747
ALK rearrange non-small cell lung carcinoma sensitive Alectinib Guideline Actionable Alecensa (alectinib) is included in guidelines as the preferred first-line therapy for patients with ALK-rearranged, metastatic non-small cell lung cancer, and as the subsequent therapy for patients who have progressed after Xalkori (crizotinib) (NCCN.org). detail...
ALK rearrange non-small cell lung carcinoma sensitive Alectinib FDA approved Actionable In a Phase III trial supporting FDA approval (ALEX), Alecensa (alectinib) treatment resulted in improved rate of progression-free survival compared to Xalkori (crizotinib) (68.4% vs 48.7%, HR=0.47), and median progression-free survival (25.7 vs 10.4 months) in non-small cell lung cancer patients harboring ALK rearrangement (PMID: 28586279; NCT02075840). 28586279