Reference Detail

Ref Type

Journal Article

PMID

(35324529)

Authors

Jin C, He Z, Guo M, Liu S, Wang Y, Qiu J, Li C, Wu D

Title

Rapid and durable response to fifth-line lorlatinib plus olaparib in an ALK-rearranged, BRCA2-mutated metastatic lung adenocarcinoma patient with critical tracheal stenosis: a case report.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Anti-cancer drugs			2022 Mar 23	696-700	Anticancer Drugs

URL

Abstract Text

Treatment options for heavily treated anaplastic lymphona kinase (ALK)-positive nonsmall cell lung cancer (NSCLC) patients, who typically bear-resistant mechanisms to ALK tyrosine kinase inhibitors (TKIs), are usually limited to chemotherapy, which elicits limited clinical benefit and may incur severe toxicity. It is clinically relevant to explore other revenues for these patients. poly (ADP-ribose) polymerase (PARP) inhibitors, such as olaparib are currently approved to treat BReast CAncer gene 1/2 (BRCA1/2)-mutated patients in a few tumor types. There have been a trial and two case reports of an olaparib-containing regimen in treating epidermal growth factor receptor (EGFR)-positive or driver-negative NSCLC. We report a case of a 27-year-old female nonsmoker diagnosed with ALK-rearranged metastatic lung adenocarcinoma. She was treated with alectinib and acquired ALK p.I1171N and p.V1180L mutations. Germline BRCA2 p.F2801fs was also identified. After sequential lines of ceritinib and chemotherapy, lorlatinib was chosen as the fourth-line therapy and maintained control for 6 months. Shortly after progression, the patient was admitted to the ICU due to critically severe stenosis caused by a tracheal mass and soon relieved by embolization and stenting. Afterward lorlatinib plus olaparib was started and elicited a rapid response within 1 month. The progression-free survival was 6 months as of the latest follow-up, with the best response of partial response. To the best of our knowledge, this case is the first to provide clinical evidence of antitumor activity of olaparib plus ALK TKI in ALK-positive, gBRCA-mutated metastatic NSCLC. Together with previous reports in EGFR-positive or driver-negative patients, our finding warrants further studies on PARP inhibition in BRCA1/2-mutated NSCLC.

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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
ALK	V1180L	missense	unknown	ALK V1180L lies within the protein kinase domain of the Alk protein (UniProt.org). V1180L has been demonstrated to occur as a secondary resistance mutation in the context of EML4-ALK (PMID: 25228534, PMID: 27432227, PMID: 35324529), but has not been biochemically characterized and therefore, its effect on Alk protein function is unknown (PubMed, Dec 2023).	Y

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
EML4 - ALK	lung adenocarcinoma	predicted - sensitive	Alectinib	Case Reports/Case Series	Actionable	In a clinical case study, Alecensa (alectinib) treatment resulted in a partial response lasting 6.5 months in a patient with lung adenocarcinoma harboring EML4-ALK, who also harbored IDH1 R132H (PMID: 35324529).	35324529
EML4 - ALK ALK I1171N ALK V1180L	lung adenocarcinoma	predicted - resistant	Alectinib	Case Reports/Case Series	Actionable	In a clinical case study, a patient with lung adenocarcinoma harboring EML4-ALK, as well as IDH1 R132H, developed progressive disease after initial response to Alecensa (alectinib), and ALK I1171N and ALK V1180L were identified in the post-progression biopsy along with germline BRCA2 F2801fs (PMID: 35324529).	35324529