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  • Title: [Low-Dose and Interval Administration of Imatinib in a Patient with Liver Metastasis of the Gastrointestinal Stromal Tumor of the Stomach - A Case Report].
    Author: Morinaga N, Saito H, Komine C, Matsumoto A, Katoh T, Tanaka N, Nakazato K, Nakamura T, Shitara Y, Ishizaki M.
    Journal: Gan To Kagaku Ryoho; 2017 Feb; 44(2):161-164. PubMed ID: 28223675.
    Abstract:
    A 69-year-old woman underwent proximal gastrectomy with distal pancreatectomy and splenectomy for a gastrointestinal stromal tumor of the stomach.Adjuvant imatinib was administered for a year.Two years after resection of the tumor, liver metastasis in S8 was detected.Therefore, imatinib was re-administered at 300mg/day.After a year of re-administration, the patient suffered muscle cramps in the hands, and therefore imatinib was administered with intervals, such as 4 weeks administration and 4 weeks rest.Re -administration of imatinib was effective and her liver metastasis decreased in size.It was not detected with CT after 1 year and 4 months and remained in complete response(CR)for 3 years and 8 months.After she suffered a brain infarction, imatinib administration was stopped for 4 months.Consequently, the liver metastasis was detectable in S8 again.This clinical course suggested that low-dose and interval administration of imatinib is effective in the treat- ment of GIST.
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