Reference Detail

Ref Type

Journal Article

PMID

(29935304)

Authors

Lin JJ, Zhu VW, Schoenfeld AJ, Yeap BY, Saxena A, Ferris LA, Dagogo-Jack I, Farago AF, Taber A, Traynor A, Menon S, Gainor JF, Lennerz JK, Plodkowski AJ, Digumarthy SR, Ou SI, Shaw AT, Riely GJ

Title

Brigatinib in Patients With Alectinib-Refractory ALK-Positive NSCLC.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer	13	10	2018 10	1530-1538	J Thorac Oncol

URL

Abstract Text

The second-generation anaplastic lymphoma kinase (ALK) inhibitor alectinib recently showed superior efficacy compared to the first-generation ALK inhibitor crizotinib in advanced ALK-rearranged NSCLC, establishing alectinib as the new standard first-line therapy. Brigatinib, another second-generation ALK inhibitor, has shown substantial activity in patients with crizotinib-refractory ALK-positive NSCLC; however, its activity in the alectinib-refractory setting is unknown.A multicenter, retrospective study was performed at three institutions. Patients were eligible if they had advanced, alectinib-refractory ALK-positive NSCLC and were treated with brigatinib. Medical records were reviewed to determine clinical outcomes.Twenty-two patients were eligible for this study. Confirmed objective responses to brigatinib were observed in 3 of 18 patients (17%) with measurable disease. Nine patients (50%) had stable disease on brigatinib. The median progression-free survival was 4.4 months (95% confidence interval [CI]: 1.8-5.6 months) with a median duration of treatment of 5.7 months (95% CI: 1.8-6.2 months). Among 9 patients in this study who underwent post-alectinib/pre-brigatinib biopsies, 5 had an ALK I1171X or V1180L resistance mutation; of these, 1 had a confirmed partial response and 3 had stable disease on brigatinib. One patient had an ALK G1202R mutation in a post-alectinib/pre-brigatinib biopsy, and had progressive disease as the best overall response to brigatinib.Brigatinib has limited clinical activity in alectinib-refractory ALK-positive NSCLC. Additional studies are needed to establish biomarkers of response to brigatinib and to identify effective therapeutic options for alectinib-resistant ALK-positive NSCLC patients.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	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 ALK V1180L	lung non-small cell carcinoma	predicted - resistant	Alectinib	Case Reports/Case Series	Actionable	In a clinical study, ALK V1180L was identified in post-progression biopsies of 2 non-small cell lung cancer patients harboring an ALK rearrangement after Alecensa (alectinib) treatment (PMID: 29935304).	29935304
ALK rearrange ALK I1171N	lung non-small cell carcinoma	predicted - sensitive	Brigatinib	Case Reports/Case Series	Actionable	In a clinical study, Alunbrig (brigatinib) treatment resulted in stable disease in 2 patients with Alecensa (alectinib)-refractory, ALK-rearranged non-small cell lung cancer with an acquired ALK I1171N (PMID: 29935304).	29935304
ALK rearrange ALK V1180L	lung non-small cell carcinoma	predicted - sensitive	Brigatinib	Case Reports/Case Series	Actionable	In a clinical study, Alunbrig (brigatinib) treatment resulted in 1 partial response and 1 stable disease in a total of 2 patients with Alecensa (alectinib)-refractory, ALK-rearranged non-small cell lung cancer with an acquired ALK V1180L (PMID: 29935304).	29935304
ALK rearrange	lung non-small cell carcinoma	sensitive	Brigatinib	Clinical Study	Actionable	In a retrospective analysis, Alunbrig (brigatinib) demonstrated limited efficacy, resulting in an objective response rate of 17% (3/18) and stable disease in 50% (9/18) of patients with Alecensa (alectinib) refractory, ALK-positive non-small cell lung cancer, with a median progression-free survival of 4.4 months (PMID: 29935304).	29935304
ALK rearrange ALK I1171T	lung non-small cell carcinoma	predicted - resistant	Alectinib	Case Reports/Case Series	Actionable	In a clinical case study, ALK I1171T was identified in the post-progression biopsy of a non-small cell lung cancer patient harboring an ALK rearrangement after Alecensa (alectinib) treatment (PMID: 29935304).	29935304
ALK rearrange ALK D1203N	lung non-small cell carcinoma	predicted - resistant	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, ALK D1203N was identified at disease progression while on Alunbrig (brigatinib) treatment in a patient with ALK-positive non-small cell lung cancer (PMID: 29935304).	29935304
ALK rearrange ALK V1180L ALK L1196M ALK G1202R	lung non-small cell carcinoma	predicted - resistant	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, ALK G1202R and ALK L1196M were identified at disease progression while on Alunbrig (brigatinib) treatment in liquid biopsy of a patient with ALK-positive non-small cell lung cancer also harboring an ALK V1180L (PMID: 29935304).	29935304
ALK rearrange ALK I1171T	lung non-small cell carcinoma	predicted - resistant	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, Alunbrig (brigatinib) treatment resulted in progressive disease in a patient with Alecensa (alectinib)-refractory, ALK-rearranged non-small cell lung cancer with an acquired ALK I1171T (PMID: 29935304).	29935304
ALK rearrange ALK G1202R	lung non-small cell carcinoma	predicted - resistant	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, Alunbrig (brigatinib) treatment resulted in progressive disease in a patient with ALK-rearranged non-small cell lung cancer refractory to Alecensa (alectinib) treatment, ALK G1202R was identified in post-brigatinib biopsy (PMID: 29935304).	29935304