Brigatinib for anaplastic lymphoma kinase-tyrosine kinase inhibitor naive anaplastic lymphoma kinase-positive advanced non-small cell lung cancer: an effective but still broken option.
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ABSTRACT:
SUBMITTER: Ricciuti B
PROVIDER: S-EPMC6987338 | biostudies-literature | 2019 Dec
REPOSITORIES: biostudies-literature
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Brigatinib for anaplastic lymphoma kinase-tyrosine kinase inhibitor naïve anaplastic lymphoma kinase-positive advanced non-small cell lung cancer: an effective but still broken option.
Ricciuti Biagio B Lamberti Giuseppe G Roila Fausto F Metro Giulio G
Translational lung cancer research 20191201 Suppl 4
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Project description:Lung cancer still represents the leading cause of cancer-related mortality. However, the recent advent of tyrosine kinase inhibitors (TKI), pioneering drugs against targetable mutations, have dramatically improved prognosis of advanced non-small cell lung cancer (NSCLC) patients. Anaplastic lymphoma kinase (ALK) gene rearrangements, identified in 3–7% of NSCLC cases, reflects in the constitutive activation of downstream signalling pathways, stimulating tumour cell proliferation, differentiation and survival. To accurately detect the wide spectrum of ALK rearrangements, the introduction of innovative techniques, like reverse transcriptase polymerase chain reaction (RT-PCR) or next generation sequencing (NGS) now allows for a more precise detection of variants and a more objective reading assessment, compared to the traditional diagnostic approaches. In some occasions, these new tools may dynamically monitor tumor evolution and even guide the choice of the most appropriate ALK inhibitor. In fact, among ALK TKIs available, crizotinib was the first to receive FDA accelerate approval for ALK rearranged NSCLC patients. Notwithstanding its response rate, ranging from 57% to 74%, the majority of patients progress within the first year of drug administration, due to acquired resistance. Both ALK-dependent and independent mechanisms of acquired resistance to TKIs have been identified. If the activation of multiple bypass signaling pathways constitutes the most common ALK-independent mechanism of resistance and one of the most difficult to overcome, ALK-dependent escape strategy mainly consists of mutations in the kinase domain, where the type of mutation largely depends on the TKI administered. Second and third generation TKIs are now available and are demonstrating high systemic and central nervous system (CNS) efficacy in clinical trials. Even though appropriate timing and sequencing of these compounds are still unclear, the large number of ALK inhibitors is now a precious resource aiming to prolong progression-free survival (PFS) and finally overall survival (OS). Here Authors provide an overview of the current approaches in the clinical management of advanced NSCLC patients harboring ALK rearrangement and discuss future perspectives to address current issues, highlighting the perception that ALK-rearranged advanced NSCLC patients benefit from maintained ALK inhibition for as long as possible.
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Project description: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.
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Project description:Anaplastic lymphoma kinase (ALK) is a tyrosine kinase receptor which has been implicated in numerous solid and hematologic cancers. ALK mutations are reported in about 5-7% of neuroblastoma cases but the ALK-positive percentage increases significantly in the relapsed patient population. Crizotinib, the first clinically approved ALK inhibitor for the treatment of ALK-positive lung cancer has had less dramatic responses in neuroblastoma. Here we investigate the efficacy of a second-generation ALK inhibitor, brigatinib, in a neuroblastoma setting. Employing neuroblastoma cell lines, mouse xenograft and Drosophila melanogaster model systems expressing different constitutively active ALK variants, we show clear and efficient inhibition of ALK activity by brigatinib. Similar abrogation of ALK activity was observed in vitro employing a set of different constitutively active ALK variants in biochemical assays. These results suggest that brigatinib is an effective inhibitor of ALK kinase activity in ALK addicted neuroblastoma that should be considered as a potential future therapeutic option for ALK-positive neuroblastoma patients alone or in combination with other treatments.
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Project description:Background: Clinical trials frequently reported anaplastic lymphoma kinase tyrosine kinase inhibitors (ALK-TKIs) associated with cardiac adverse drug events (AEs) but minimal postmarketing data. We aimed to research real-world cardiac disorders associated with ALK-TKIs based on the Food and Drug Administration Adverse Event Reporting System (FAERS). Methods: Extract reports from the FAERS from the first quarter of 2016 to the second quarter of 2021 were obtained. Data mining of cardiac disorders associated with ALK-TKIs was carried out using disproportionality analysis to determine the clinical characteristics of AEs. Results: In total, 605 cases were screened out. These events were found to be more prevalent in patients ≥45 years (50.74%) and women (50.74%). The onset time of cardiac disorders was variable and concentrated within 2 months, with a median time of 33 days. The outcomes tended to be poor, with 20.93% fatality proportion. Cardiac arrhythmia was a common adverse event of ALK-TKIs, especially bradycardia. Crizotinib and lorlatinib showed positive signals in cardiac disorders, especially in heart failure, and brigatinib presented no signals. The study also found that myocarditis caused by ceritinib and cardiomyopathy caused by lorlatinib may be potential new adverse drug reactions. Conclusion: ALK-TKIs were reported more frequently in cardiotoxicity than other drugs and could often manifest earlier. We also found potential new AE signals in specific drugs and need more clinical studies to confirm. Our study helps fill the safety information of ALK-TKIs in the heart and provides directions for further research.
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Project description:Rearrangement of anaplastic lymphoma kinase (ALK) gene is detected in approximately 5% of non-small cell lung cancer (NSCLC) patients. Tyrosine kinase inhibitors targeting ALK have significantly improved the prognosis of these patients. However, most patients experienced disease progression within a few years due to acquired resistance. Brigatinib is a second-generation ALK inhibitor effective in presence of several ALK mutations with demonstrated activity against central nervous system metastases. Currently, brigatinib is approved to treat ALK-positive metastatic NSCLC patients not previously treated with ALK inhibitors and patients who have progressed on or are intolerant to crizotinib. In this review, we provide a summary of results from clinical trials involving brigatinib, and we discuss its possible role in the management of ALK-positive NSCLC in the following years.
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Project description:Anaplastic lymphoma kinase (ALK) rearrangements occur in ∼3%-6% of patients with advanced non-small-cell lung cancer (NSCLC). Small molecular drugs that effectively inhibit ALK gene have revolutionized the therapeutic paradigm for patients with ALK rearrangements, resulting in significant improvements in objective response rate, progression-free survival, and overall survival compared with classical platinum-based chemotherapy. Several ALK tyrosine kinase inhibitors (ALK-TKIs), including crizotinib, alectinib, ceritinib, brigatinib, ensartinib, and lorlatinib, have been recommended as standard first-line treatment for advanced NSCLC patients with ALK rearrangements. Patients with ALK rearrangements typically exhibit long-term durable responses to ALK-TKIs; therefore, the management of adverse drug reactions (ADRs) with ALK-TKIs is crucial in clinical practice to maximize clinical benefits, prevent an adverse impact on quality of life, and improve patient compliance. In general, ALK-TKIs are well tolerated. There are, however, a number of serious toxicities that may necessitate dose modification or even discontinuation of treatment and the management of ADRs with ALK-TKIs has grown in importance. The therapeutic use of this class of medications still carries some risk because there are currently no pertinent guidelines or consensus recommendations for managing ADRs caused by ALK-TKIs in China. In order to improve the clinical management of ADRs with ALK-TKIs, the Chinese Society of Clinical Oncology (CSCO) Non-small Cell Lung Cancer Professional Committee led the discussion and summary of the incidence, diagnosis and grading standards, and prevention and treatment of ADRs caused by ALK-TKIs. Highlights • Though ALK-TKIs are well tolerated, certain toxicities may necessitate dosage adjustments or treatment cessation.• The management of ADRs with ALK-TKIs has grown in importance.• The CSCO NSCLC Professional Committee led the expert consensus of management of ADRs with ALK-TKIs.• The current consensus can help in improving the clinical management of ADRs with ALK-TKIs.
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Project description:Brigatinib is a kinase inhibitor indicated for patients with advanced anaplastic lymphoma kinase-positive non-small cell lung cancer who progressed on or are intolerant to crizotinib. Approval was based on results from a randomized, dose-ranging phase II study (ALK in Lung Cancer Trial of AP26113 (ALTA)). Despite an apparent dose-response relationship for efficacy in ALTA, an exposure-response relationship was not discernable using static models driven by time-averaged exposure. However, exposure-response modeling using daily time-varying area under the concentration curve as the predictor in time-to-event models predicted that increasing the dose of brigatinib (range, 30 mg once daily (q.d.) to 240 mg q.d.) would result in clinically meaningful improvements in progression-free survival (PFS), intracranial PFS, and overall survival. Grade ≥ 2 rash and amylase elevation were predicted to significantly increase with brigatinib exposure. These results provided support for a favorable benefit-risk profile with the approved dosing regimen (180 mg q.d. with 7-day lead-in at 90 mg) versus 90 mg q.d.
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Project description:Anaplastic Large Cell Lymphomas (ALCL) represent a subset of lymphomas in which the Anaplastic Lymphoma Kinase (ALK) gene is frequently fused to the NPM gene. We previously demonstrated that the constitutive phosphorylation of ALK chimeric proteins is sufficient to induce cellular transformation in vitro and in vivo, and that ALK activity is strictly required for the survival of ALK positive ALCL cells. To elucidate the signaling pathways required for ALK-mediated transformation and tumor maintenance, we analyzed the transcriptomes of multiple ALK positive ALCL cell lines abrogating their ALK-mediated signaling by inducible ALK RNA interference (RNAi) or with potent and cell permeable ALK inhibitors. Transcripts derived from the gene expression profiling (GEP) analysis uncovered a reproducible signature, which included a novel group of ALK-regulated genes. Functional RNAi screening on a set of these ALK transcriptional targets revealed that the transcription factor C/EBPb and the anti-apoptotic protein BCL2A1 are absolutely necessary to induce cell transformation and/or to sustain the growth and survival of ALK positive ALCL cells. Thus, we proved that an experimentally controlled and functionally validated GEP analysis represents a powerful tool to identify novel pathogenetic networks and validate biologically suitable target genes for therapeutic interventions. Keywords: other
2006-11-22 | GSE6184 | GEO
Project description:Since the discovery of targeted therapy with epidermal growth factor receptor (EGFR), anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitors (TKIs) have been introduced as the first?line treatment for non?small cell lung cancer (NSCLC) patients who carry sensitizing ALK?activating mutations. Compared with conventional chemotherapeutic regimens, small?molecule ALK?TKIs exhibit excellent clinical efficacy in ALK?positive NSCLC. A series of studies have indicated that ALK?TKI agents as the first?line treatment, including crizotinib, ceritinib, brigatinib, alectinib and entrectinib, can benefit patients with ALK?positive NSCLC. However, resistance to ALK?TKIs has emerged. ALK?TKIs are associated with significantly disabling and undesirable effects that adversely impact quality of life and compliance. This study reviews the pharmacodynamics, efficacy and safety of ALK?TKI agents in order to summarize these effects as well as the relevant management strategies. It is worth emphasizing that the frequency and severity of an adverse effect often varies across different trials.
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Project description:The Drosophila melanogaster gene Anaplastic lymphoma kinase (Alk) is homologous to mammalian Alk, which encodes a member of the Alk/Ltk family of receptor tyrosine kinases (RTKs). In humans, the t(2;5) translocation, which involves the ALK locus, produces an active form of ALK, which is the causative agent in non-Hodgkin's lymphoma. The physiological function of the Alk RTK, however, is unknown. In this paper, we describe loss-of-function mutants in the Drosophila Alk gene that cause a complete failure of the development of the gut. We propose that the main function of Drosophila Alk during early embryogenesis is in visceral mesoderm development.
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