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Clinical Trial Summary

This study consists of Dose escalation part and Expansion part. In Dose Escalation Part, the maximum tolerated dose of combination of pimitespib and imatinib in patients with gastrointestinal stromal tumors (GIST) who are judged to be refractory to imatinib, estimate the recommended dose, evaluate safety and pharmacokinetics, and observe the antitumor effect. Expansion part consists of 3 arms. In Arm A, the efficacy and safety will be evaluated, which of the combination of pimitespib and imatinib in patients with GIST who have failed imatinib at doses below the MTD determined in Dose Escalation Part. In Arm B, the efficacy and safety of pimitespib monotherapy will be evaluated and the therapeutic effect of imatinib administration after pimitespib will be evaluated in an exploratory manner. In Arm C, the efficacy and safety of sunitinib monotherapy will be evaluated as reference data.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT05245968
Study type Interventional
Source Taiho Pharmaceutical Co., Ltd.
Contact Drug Information Center
Phone +81-3-3294-4527
Email n-arimura@taiho.co.jp
Status Recruiting
Phase Phase 1
Start date December 1, 2021
Completion date December 2025

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