A Refractory Case of CDKN2A/B Loss Metastatic Intrahepatic Cholangiocarcinoma Achieving a Partial Response After First-Line Treatment with Palbociclib
OncoTargets and therapy(2023)
摘要
Intrahepatic cholangiocarcinoma (ICC) is a highly aggressive and malignant subtype of biliary duct tumors. The poor prognosis of advanced ICC brings great challenges to clinical treatment, and chemotherapy-based therapy remains the standard first -line regimen. In recent years, the development of clinical research on targeted therapy for biliary duct tumors has brought new strategies for clinical treatment, but the targets are limited. Herein, we reported a 68-year-old patient with metastasis ICC harboring CDKN2A/B loss, who achieved a partial response (PR) after the first-line treatment with a cyclin-dependent kinases 4 and 6 (CDK4/6) inhibitor called palbociclib, and no obvious side effects were observed. As of the latest follow-up time, the progression-free survival (PFS) had lasted for 20 months. This case reveals the molecular characteristic of ICC patients who respond to palbociclib treatment and illustrates the importance of performing a multiple-gene panel test in ICC patients.
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关键词
intrahepatic cholangiocarcinoma,ICC,CDKN2A,B loss,palbociclib,CDK4,6 inhibitor,next-generation sequencing,NGS
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