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In SSGXVIII/AIO, three years of imatinib after surgery, rather than one, improved survival in high-risk GIST.
SSGXVIII/AIO, trial NCT00116935 sponsored by the Scandinavian Sarcoma Group and the German AIO and published in JAMA in 2012, showed that three years of adjuvant imatinib after surgery, rather than one, improves recurrence-free and overall survival in high-risk gastrointestinal stromal tumour. It randomised 400 patients and met its primary recurrence-free survival endpoint at five years with a survival benefit that held at ten years. OnCo links it to sarcomas and GIST, KIT as a target and imatinib. Trials of five to six years of imatinib, SSG XXII and IMADGIST, suggest further recurrence-free benefit, and how long adjuvant imatinib should continue is the open question.
Numbers are from the trial as recorded here; see the source links in the table below. This is orientation, not medical advice: ask your team how closely the trial population matches you.
400 enrolled.
The full inclusion and exclusion criteria are on the registry record. Read 2026-10-07. Recruiting overall does not mean a particular site is open; ask the study team.
ClinicalTrials.gov data courtesy of the US National Library of Medicine.
Shares KIT, Imatinib, Sarcomas (soft tissue, bone, GIST), Small-molecule kinase inhibitors.
Shares KIT, Imatinib, Sarcomas (soft tissue, bone, GIST).
Shares KIT, Imatinib, Sarcomas (soft tissue, bone, GIST).
Shares KIT, Imatinib, Sarcomas (soft tissue, bone, GIST).
Shares KIT, Sarcomas (soft tissue, bone, GIST), Small-molecule kinase inhibitors.
Shares KIT, Sarcomas (soft tissue, bone, GIST).
Shares Imatinib, Small-molecule kinase inhibitors.
Shares Imatinib, Small-molecule kinase inhibitors.
Every source this page cites, grouped by who published it. Grouping is read from the web address, not assigned by hand.
A source that has moved or gone is reported by the weekly link check. /audit/