Reference Detail

Ref Type

PMID

(34376997)

Authors

Yao B, Han X, Pang L, Xu C, Liu S, Cheng X, Chen J

Title

Acquired ALK Resistance Mutations Identified from Liquid Biopsy in an ALK-Rearranged Squamous Cell Lung Cancer Patient Treated with Sequential ALK TKI Therapy: A Case Report.

Journal	Vol	Issue	Date	Pages	Journal Short Title
OncoTargets and therapy	14		2021	4329-4333	Onco Targets Ther

URL

Abstract Text

Anaplastic lymphoma kinase (ALK) rearrangement is extremely rare in lung squamous cell carcinoma (LSCC), and it remains controversial as to whether LSCC patients with ALK rearrangement can benefit from ALK tyrosine kinase inhibitors (TKIs). Here, we report an LSCC patient with ALK rearrangement who was treated with sequential ALK TKI therapies and experienced a clinical benefit of 35 months. Although the use of ALK TKIs showed clinical benefits, targeted next-generation sequencing (NGS) for dynamic monitoring of circulating tumor DNA (ctDNA) from patient plasma revealed the accumulation of ALK resistance mutations, which could provide valuable information in designing the treatment strategy. Our study highlights the importance of dynamic monitoring of ctDNA using NGS to discover tumor evolution to guide treatment decision-making and provides meaningful insights into the potential treatment options for ALK-positive LSCC 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
EML4 - ALK ALK G1202R	lung squamous cell carcinoma	predicted - sensitive	Lorlatinib	Case Reports/Case Series	Actionable	In a clinical case study, third-line Lorbrena (lorlatinib) treatment resulted in a progression-free survival of 7 months in a patient with metastatic lung squamous cell carcinoma harboring EML4-ALK and ALK G1202R (PMID: 34376997).	34376997
EML4 - ALK	lung squamous cell carcinoma	predicted - sensitive	Crizotinib	Case Reports/Case Series	Actionable	In a clinical case study, Xalkori (crizotinib) treatment with whole-brain radiotherapy resulted in a partial response with a progression-free survival of 17 months in a patient with metastatic lung squamous cell carcinoma harboring EML4-ALK (PMID: 34376997).	34376997
EML4 - ALK	lung squamous cell carcinoma	predicted - sensitive	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, Alunbrig (brigatinib) treatment resulted in a complete response in the lung and partial response in the brain lesions in a patient with metastatic lung squamous cell carcinoma harboring EML4-ALK, with a progression-free survival of 11 months (PMID: 34376997).	34376997
EML4 - ALK ALK G1202R	lung squamous cell carcinoma	predicted - resistant	Brigatinib	Case Reports/Case Series	Actionable	In a clinical case study, ALK G1202R was identified in the post-progression biopsy of a patient with metastatic lung squamous cell carcinoma harboring EML4-ALK, who previously responded to Alunbrig (brigatinib) treatment (PMID: 34376997).	34376997