Dataset Information

Anaplastic Lymphoma Kinase (ALK) Receptor Tyrosine Kinase: A Catalytic Receptor with Many Faces.

ABSTRACT: The anaplastic lymphoma kinase (ALK) receptor is a membrane-bound tyrosine kinase. The pathogenesis of several cancers is closely related to aberrant forms of ALK or aberrant ALK expression, including ALK fusion proteins, ALK-activated point mutations, and ALK amplification. Clinical applications of different ALK inhibitors represent significant progress in targeted therapy. Knowledge of different aspects of ALK biology can provide significant information to further the understanding of this receptor tyrosine kinase. In this mini-review, we briefly summarize different features of ALK. We also summarize some recent research advances on ALK fusion proteins in cancers.

SUBMITTER: Huang H

PROVIDER: S-EPMC6274813 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Anaplastic Lymphoma Kinase (ALK) Receptor Tyrosine Kinase: A Catalytic Receptor with Many Faces.

Huang Hao H

International journal of molecular sciences 20181102 11

The anaplastic lymphoma kinase (ALK) receptor is a membrane-bound tyrosine kinase. The pathogenesis of several cancers is closely related to aberrant forms of ALK or aberrant ALK expression, including ALK fusion proteins, ALK-activated point mutations, and ALK amplification. Clinical applications of different ALK inhibitors represent significant progress in targeted therapy. Knowledge of different aspects of ALK biology can provide significant information to further the understanding of this rec ...[more]

PMID: 30400214

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Project description:BackgroundLittle is known about real-world treatment and outcomes of patients with anaplastic lymphoma kinase-positive (ALK+) advanced non-small cell lung cancer (NSCLC).Patients and methodsThis retrospective study of the Flatiron Health EHR-derived deidentified database included patients with a lung cancer diagnosis and confirmed advanced NSCLC who received ALK tyrosine kinase inhibitor (TKI) therapy (January 1, 2011, through June 30, 2018). Patient characteristics and treatment patterns were characterized. Real-world progression-free survival (rwPFS) and time to discontinuation were calculated using the Kaplan-Meier method.ResultsFirst-line ALK TKI therapy was administered to 581 patients (27.5% had brain metastasis on or prior to initiation) and second-line ALK TKI therapy to 254 patients post crizotinib (45.7% had brain metastasis on or prior to second-line ALK TKI initiation). Crizotinib (84.6%; n = 492) was the most commonly administered first-line ALK TKI therapy. For second-line ALK TKI post crizotinib (n = 254), 49.6% received ceritinib, 41.7% received alectinib, 5.9% received crizotinib retreatment, and 2.8% received brigatinib. Median (95% confidence interval [CI]) rwPFS was 7.47 (6.48-8.32) months for first-line and 7.30 (5.72-8.42) months for second-line ALK TKI. Median (95% CI) rwPFS was significantly longer among first-line ALK TKI patients without than with brain metastasis (8.52 [7.57-10.59] vs. 4.97 [3.75-5.99] months; p < .0001) and patients with brain metastasis on or prior to first-line ALK TKI therapy had a significantly increased risk of progression (hazard ratio ± SE, 1.976 ± 0.112; p < .0001).ConclusionMedian rwPFS in patients with advanced ALK+ NSCLC was < 8 months for first- and second-line ALK TKI therapy and was even shorter in patients with brain metastasis, highlighting the need for more effective treatments in this patient population.Implications for practiceResults presented herein describe real-world treatment of advanced ALK+ NSCLC with ALK TKI therapies from January 2011 through June 2018. Crizotinib was the most commonly prescribed first-line ALK TKI therapy in this patient population, but the majority of data analyzed were obtained prior to Food and Drug Administration approval of alectinib and ceritinib in the first-line ALK TKI setting. Physicians should monitor patients closely to help identify when a change in treatment should occur.

Dataset Information

Anaplastic Lymphoma Kinase (ALK) Receptor Tyrosine Kinase: A Catalytic Receptor with Many Faces.

Publications

Anaplastic Lymphoma Kinase (ALK) Receptor Tyrosine Kinase: A Catalytic Receptor with Many Faces.

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