Reference Detail

Ref Type

PMID

(34568053)

Authors

Ou K, Liu X, Li W, Yang Y, Ying J, Yang L

Title

ALK Rearrangement-Positive Pancreatic Cancer with Brain Metastasis Has Remarkable Response to ALK Inhibitors: A Case Report.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Frontiers in oncology	11		2021	724815	Front Oncol

URL

Abstract Text

Patients with metastatic pancreatic cancer typically have poor prognosis due to the limited effectiveness of existing treatment options. ALK rearrangement-positive is rare in pancreatic cancer, but may occur in those with KRAS-wild type. We present a 34-year-old young man with ALK rearrangement-positive and KRAS-wild pancreatic cancer who had a remarkable response to crizotinib after resistance to prior chemotherapy and re-response to alectinib after brain metastases developed. This clinical observation suggests that comprehensive molecular profiling to guide targeted therapies is not only feasible, but also significantly improves survival outcomes for a subgroup of patients with pancreatic cancer.

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Molecular Profile	Treatment Approach
No data available in table

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role
No data available in table

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials
No data available in table

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description
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Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance
CHEK1	S193Y	missense	unknown	CHEK1 S193Y lies within the protein kinase domain of the Chek1 protein (UniProt.org). S193Y has been identified in sequencing studies (PMID: 34568053), but has not been biochemically characterized and therefore, its effect on Chek1 protein function is unknown (PubMed, May 2025).
ATR	E2626*	nonsense	unknown	ATR E2626* results in a premature truncation of the Atr protein at amino acid 2626 of 2644 (UniProt.org). E2626* has been identified in sequencing studies (PMID: 34568053), but has not been biochemically characterized and therefore, its effect on Atr protein function is unknown (PubMed, Apr 2025).

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Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
EML4 - ALK	pancreatic cancer	predicted - sensitive	Alectinib	Case Reports/Case Series	Actionable	In a clinical case study, Alecensa (alectinib) treatment resulted in stable primary disease and decrease in brain lesions with treatment lasting nearly 10 months before progression of the brain metastases in a patient with pancreatic cancer harboring EML4-ALK (PMID: 34568053).	34568053
EML4 - ALK	pancreatic cancer	predicted - sensitive	Crizotinib	Case Reports/Case Series	Actionable	In a clinical case study, Xalkori (crizotinib) treatment resulted in tumor shrinkage with treatment lasting eight months in a patient with pancreatic cancer harboring EML4-ALK (PMID: 34568053).	34568053

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