You will be in the trial for about 18 months. As with any clinical trial, you may stop participation at any time for any reason or no reason. IDRX, Inc. does not have any plans to provide IDRX-42 or any other study drugs or procedures to you after the end of the trial or if you have discontinued or have been withdrawn from the trial.

Your health will be monitored continuously throughout the trial. Even if you do not directly benefit from participating in the trial, any information collected may help researchers learn more about the study drug and about treating other adults with GIST in the future.

The study drug, site visits, and study-related tests will be paid for by the clinical trial sponsor, IDRx, Inc. and will not cost you anything. You will be reimbursed for reasonable study visit-related travel expenses.

Participation in the clinical trial is voluntary. If you decide to join and then change your mind, you can leave the trial at any time. Leaving the trial will not affect your regular medical care.

Everyone in the trial will take the study drug, IDRX-42.

The study drug comes as tablets that you will take by mouth with water and without food. You will take IDRX-42 once a day as directed by the study doctor.

As with all medicines, there is the possibility of side effects, which are unwanted or unintended effects of a medicine. Talk to the study doctor for more information on possible side effects. Your health will be closely monitored throughout the entire trial. Tell the study doctor if you notice any side effects or changes in your health.