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Clinical Trial Summary

This is the first clinical trial of IDRX-42. The study is designed to evaluate the safety, tolerability, PK, and preliminary antitumor activity of IDRX-42 in adult participants with advanced (metastatic and/or surgically unresectable) GIST.


Clinical Trial Description

This is a Phase 1/1b open-label, first-in-human FIH study of IDRX-42, an orally administered small molecule tyrosine kinase inhibitor. Eligible participants will have metastatic and/or surgically unresectable GIST. The study consists of 2 parts. Phase 1 comprises dose escalation to assess clinical and pharmacologic profile and safety/tolerability after failure of at least prior imatinib and support choice of the recommended phase 1b dose(s) and schedule(s) (RP1bDs)). Phase 1b expansion will enroll separate cohorts of participants defined by numbers of lines of prior GIST therapy at the selected RP1bD(s) to assess the preliminary antitumor effect of IDRX-42 and further characterize the safety profile of IDRX-42 at the RP1bD(s). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05489237
Study type Interventional
Source IDRx, Inc.
Contact IDRX Clinical Operations
Phone 339-234-7028
Email clinicaltrials@idrx.com
Status Recruiting
Phase Phase 1
Start date August 1, 2022
Completion date September 13, 2026

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