Observational Registry Data on GIST Patients

Research question and objectives: This study is to collect and describe real-world data for Taiwanese GIST on: * Prevalence and demographic characteristics of Taiwanese GIST * Treatment pattern of GIST therapies * Bio-marker and/or gene expression characteristics of Taiwanese GIST * Treatment outcome of TKI therapies, including recurrence-free, progression-free and overall survival * Safety profile for TKI therapies Study design: Retrospective and prospective observational cohort study Population: Taiwan GIST patients during 01 January 2010 to 31 December 2020 Data sources: Medical records and investigator-established data bank Study size: Data from up to 3,000 eligible subjects will be collected Data analysis: Descriptive statistics for longitudinally assess nationwide trends on current and evolving diagnostic, treatment, and outcome measures in the GIST population and estimate the prevalence of GIST in Taiwan. Milestones: Interim report before 31 December 2018 and final study report before 30 June 2026.