RT Journal Article T1 Dovitinib in patients with gastrointestinal stromal tumour refractory and/or intolerant to imatinib. A1 Joensuu, Heikki A1 Blay, Jean-Yves A1 Comandone, Alessandro A1 Martin-Broto, Javier A1 Fumagalli, Elena A1 Grignani, Giovanni A1 Del Muro, Xavier Garcia A1 Adenis, Antoine A1 Valverde, Claudia A1 Pousa, Antonio Lopez A1 Bouché, Olivier A1 Italiano, Antoine A1 Bauer, Sebastian A1 Barone, Carlo A1 Weiss, Claudia A1 Crippa, Stefania A1 Camozzi, Maura A1 Castellana, Ramon A1 Le Cesne, Axel AB This multicentre phase II trial (DOVIGIST) evaluated the antitumour activity of dovitinib as second-line treatment of patients with gastrointestinal stromal tumour (GIST) refractory to imatinib or who do not tolerate imatinib. Patients received oral dovitinib 500 mg day-1, 5 days on/2 days off, until GIST progression or unacceptable toxicity, with an objective to evaluate efficacy, assessed as the disease control rate (DCR) at 12 weeks. Tumour assessment and response to dovitinib therapy were evaluated by Response Evaluation Criteria In Solid Tumours (RECIST v1.1) and the Choi criteria. Secondary objectives included assessment of progression-free survival (PFS), safety and tolerability, and DCR at the end of treatment. Thirty-eight of the 39 patients enrolled had histologically confirmed GIST. The DCR at 12 weeks was 52.6% (90% confidence interval (CI), 38.2-66.7%) meeting the preset efficacy criterion for the primary end point. The objective response rate (complete response+partial response) was 2.6% (1 of 38; 90% CI, 0.1-11.9%), and 5.3% (n=2; 90% CI, 0.9-15.7%) at the end of the study. The median PFS was 4.6 months (90% CI, 2.8-7.4 months). Dose interruption was required in 26 patients (66.7%), of which 18 (69.2%) were due to adverse events. The most frequently observed grade 3 adverse events included hypertension (n=7), fatigue (n=5), vomiting (n=4), hypertriglyceridaemia (n=4), and γ-glutamyltransferase increase (n=4). Dovitinib is an active treatment for patients with GIST who are intolerant to imatinib or whose GIST progresses on imatinib. YR 2017 FD 2017-08-29 LK http://hdl.handle.net/10668/11536 UL http://hdl.handle.net/10668/11536 LA en DS RISalud RD Apr 10, 2025