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  • Open Access

    ARTICLE

    Comprehensive molecular characterization to predict immunotherapy response in advanced biliary tract cancer: a phase II trial of pembrolizumab

    RYUL KIM1,#, JOO KYUNG PARK2,#, MINSUK KWON3, MINAE AN4, JUNG YONG HONG1, JOON OH PARK1, SUNG HEE LIM1,*, SEUNG TAE KIM1,*

    Oncology Research, Vol.33, No.1, pp. 57-65, 2025, DOI:10.32604/or.2024.049054 - 20 December 2024

    Abstract Background: Immune checkpoint inhibitors (ICIs) are effective in a subset of patients with metastatic solid tumors. However, the patients who would benefit most from ICIs in biliary tract cancer (BTC) are still controversial. Materials and methods: We molecularly characterized tissues and blood from 32 patients with metastatic BTC treated with the ICI pembrolizumab as second-line therapy. Results: All patients had microsatellite stable (MSS) type tumors. Three of the 32 patients achieved partial response (PR), with an objective response rate (ORR) of 9.4% (95% confidence interval [CI], 2.0–25.2) and nine showed stable disease (SD), exhibiting a disease… More >

  • Open Access

    ARTICLE

    Cost–Utility Analysis of Pembrolizumab Versus Chemotherapy as First-Line Treatment for Metastatic Non-Small Cell Lung Cancer With Different PD-L1 Expression Levels

    Xiuhua Weng*1, Shaohong Luo*1, Shen Lin*, Lixian Zhong, Meiyue Li*, Rao Xin*, Pinfang Huang*, Xiongwei Xu*

    Oncology Research, Vol.28, No.2, pp. 117-125, 2020, DOI:10.3727/096504019X15707883083132

    Abstract To evaluate the cost–utility of pembrolizumab versus chemotherapy as the first-line setting for metastatic nonsmall cell lung cancer (NSCLC) from the US health care system perspective, a Markov model was developed to compare the lifetime cost and effectiveness of pembrolizumab versus chemotherapy for untreated metastatic NSCLC, based on the clinical data derived from phase III randomized controlled trial (KEYNOTE- 042; ClinicalTrials.gov; NCT02220894). Weibull distribution was fitted to simulate the parametric survival functions. Drug costs were collected from official websites, and utility values were obtained from published literature. Total costs, quality-adjusted life years (QALYs), and incremental… More >

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