Potential interactions between traditional Chinese medicine and osimertinib: a Case Report

Osimertinib, a third-generation EGFR tyrosine kinase inhibitor, played a crucial role in the treatment of EGFR-mutated non-small cell lung cancer. This case firstly reported a case of drug-drug interaction between traditional Chinese medicine (TCM) and osimertinib. A 57-year-old female was diagnosed...

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Main Authors: Min Zhang, Huiwen Ma, Wanyi Chen, Zhongzhen Yuan
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-06-01
Series:Frontiers in Pharmacology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2025.1596913/full
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author Min Zhang
Huiwen Ma
Wanyi Chen
Zhongzhen Yuan
author_facet Min Zhang
Huiwen Ma
Wanyi Chen
Zhongzhen Yuan
author_sort Min Zhang
collection DOAJ
description Osimertinib, a third-generation EGFR tyrosine kinase inhibitor, played a crucial role in the treatment of EGFR-mutated non-small cell lung cancer. This case firstly reported a case of drug-drug interaction between traditional Chinese medicine (TCM) and osimertinib. A 57-year-old female was diagnosed with stage IV lung adenocarcinoma, who switched from gefitinib to osimertinib after disease progression. However, the carcinoembryonic antigen (CEA) results suggested biochemical recurrence after 48 months. The first osimertinib trough concentration (Ctrough) was 82.1 ng/mL, significantly lower than the FDA-reported 166 ng/mL, with concurrent elevation of the tumor marker carcinoembryonic antigen (CEA). After excluding other possible factors, the decreased osimertinib concentration might be due to the TCM taken by the patient. After adjusting the TCM prescription, the patient’s osimertinib Ctrough was stable within the range of 145 and 228 ng/mL without significant adverse reactions and carcinoembryonic antigen levels stabilized. This case underscored the importance of monitoring drug concentrations in patients concurrently using TCM and osimertinib to optimize treatment outcomes and minimize potential drug-drug interactions.
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spelling doaj-art-47acb39df8d74e01b3b22647a2028e492025-08-20T02:38:18ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122025-06-011610.3389/fphar.2025.15969131596913Potential interactions between traditional Chinese medicine and osimertinib: a Case ReportMin Zhang0Huiwen Ma1Wanyi Chen2Zhongzhen Yuan3Department of Pharmacy, Chongqing University Cancer Hospital, Chongqing, ChinaDepartment of Medical Oncology, Chongqing University Cancer Hospital, Chongqing, ChinaDepartment of Pharmacy, Chongqing University Cancer Hospital, Chongqing, ChinaDepartment of Pharmacy, Chongqing University Cancer Hospital, Chongqing, ChinaOsimertinib, a third-generation EGFR tyrosine kinase inhibitor, played a crucial role in the treatment of EGFR-mutated non-small cell lung cancer. This case firstly reported a case of drug-drug interaction between traditional Chinese medicine (TCM) and osimertinib. A 57-year-old female was diagnosed with stage IV lung adenocarcinoma, who switched from gefitinib to osimertinib after disease progression. However, the carcinoembryonic antigen (CEA) results suggested biochemical recurrence after 48 months. The first osimertinib trough concentration (Ctrough) was 82.1 ng/mL, significantly lower than the FDA-reported 166 ng/mL, with concurrent elevation of the tumor marker carcinoembryonic antigen (CEA). After excluding other possible factors, the decreased osimertinib concentration might be due to the TCM taken by the patient. After adjusting the TCM prescription, the patient’s osimertinib Ctrough was stable within the range of 145 and 228 ng/mL without significant adverse reactions and carcinoembryonic antigen levels stabilized. This case underscored the importance of monitoring drug concentrations in patients concurrently using TCM and osimertinib to optimize treatment outcomes and minimize potential drug-drug interactions.https://www.frontiersin.org/articles/10.3389/fphar.2025.1596913/fullosimertinibtraditional Chinese medicine (TCM)drug-drug interactionnon-small cell lung cancertherapeutic drug monitoring
spellingShingle Min Zhang
Huiwen Ma
Wanyi Chen
Zhongzhen Yuan
Potential interactions between traditional Chinese medicine and osimertinib: a Case Report
Frontiers in Pharmacology
osimertinib
traditional Chinese medicine (TCM)
drug-drug interaction
non-small cell lung cancer
therapeutic drug monitoring
title Potential interactions between traditional Chinese medicine and osimertinib: a Case Report
title_full Potential interactions between traditional Chinese medicine and osimertinib: a Case Report
title_fullStr Potential interactions between traditional Chinese medicine and osimertinib: a Case Report
title_full_unstemmed Potential interactions between traditional Chinese medicine and osimertinib: a Case Report
title_short Potential interactions between traditional Chinese medicine and osimertinib: a Case Report
title_sort potential interactions between traditional chinese medicine and osimertinib a case report
topic osimertinib
traditional Chinese medicine (TCM)
drug-drug interaction
non-small cell lung cancer
therapeutic drug monitoring
url https://www.frontiersin.org/articles/10.3389/fphar.2025.1596913/full
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AT huiwenma potentialinteractionsbetweentraditionalchinesemedicineandosimertinibacasereport
AT wanyichen potentialinteractionsbetweentraditionalchinesemedicineandosimertinibacasereport
AT zhongzhenyuan potentialinteractionsbetweentraditionalchinesemedicineandosimertinibacasereport