國家衛生研究院 NHRI:Item 3990099045/14988
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/14988


    Title: Carbohydrate antigen 19-9 response to initial adjuvant chemotherapy predicts survival and failure pattern of resected pancreatic adenocarcinoma but not which patients are suited for additional adjuvant chemoradiation therapy: From a prospective randomized study
    Authors: Chiu, YF;Liu, TW;Shan, YS;Chen, JS;Li, CP;Ho, CL;Hsieh, RK;Hwang, TL;Chen, LT;Ch'ang, HJ;Taiwan Cooperative Oncology Group pancreatic cancer study group,
    Contributors: Institute of Population Health Sciences;National Institute of Cancer Research
    Abstract: Purpose: The predictive value of carbohydrate antigen 19-9 (CA19-9) for adjuvant chemo(radiation) therapy of resected pancreatic adenocarcinoma (PDAC) is undefined. Methods and Materials: We analyzed CA19-9 levels in patients with resected PDAC in a prospective randomized trial of adjuvant chemotherapy with or without additional chemoradiation therapy (CRT). Patients with postoperative CA19-9 ≤92.5 U/mL and serum bilirubin ≤2 mg/dL were randomized to 2 arms: patients in 1 arm received 6 cycles of gemcitabine, whereas those in the other received 3 cycles of gemcitabine followed by CRT and another 3 cycles of gemcitabine. Serum CA19-9 was measured every 12 weeks. Those who had CA19-9 levels always <3 U/mL were excluded from the exploratory analysis. Results: One hundred forty-seven patients were enrolled in this randomized trial. Twenty-two patients with CA19-9 levels always ≤3 U/mL were excluded from the analysis. For the 125 participants, median overall survival (OS) and recurrence-free survival were 23.1 and 12.1 months, respectively, with no significant differences between the study arms. Postresection CA19-9 levels and, to a lesser extent, CA19-9 change predicted OS (P = .040 and .077, respectively). For the 89 patients who completed the initial 3 cycles of adjuvant gemcitabine, the CA19-9 response was significantly correlated with initial failure over the distant site (P = .023) and OS (P = .0022). Despite a trend of less initial failure over the locoregional area (P = .031), neither postoperative CA19-9 level nor CA19-9 response helped to select patients who might have a survival benefit from additional adjuvant CRT. Conclusions: CA19-9 response to initial adjuvant gemcitabine predicts survival and distant failure of PDAC after resection; however, it cannot select patients suited for additional adjuvant CRT. Monitoring CA19-9 levels during adjuvant therapy for postoperative patients with PDAC may guide therapeutic decisions to prevent distant failure.
    Date: 2023-09
    Relation: International Journal of Radiation Oncology Biology Physics. 2023 Sep 1;117(1):74-86.
    Link to: http://dx.doi.org/10.1016/j.ijrobp.2023.02.061
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0360-3016&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:001070976500001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85152299584
    Appears in Collections:[Yen-Feng Chiu] Periodical Articles
    [Tsang-Wu Liu] Periodical Articles
    [Li-Tzong Chen] Periodical Articles
    [Hui-Ju Mandy Ch'ang] Periodical Articles

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