Gastrointestinal stromal tumor - A review of clinical studies.

Gastrointestinal stromal tumor (GIST) is the most common mesenchymal tumor of the gastrointestinal tract. With the advent of Imatinib, the treatment of gastrointestinal stromal tumor has been revolutionized as both the progression-free and overall survival rates have increased dramatically. Unfortunately, gastrointestinal stromal tumor patients on Imatinib do eventually fail due to resistance. Even though sunitinib and regorafenib have been shown to be highly effective as second- and third-line treatments, both have limited effects. New treatments are highly warranted for this reason. In this present review, 25 registered pharmacological clinical trials at ClinicalTrials.gov have been reviewed and show promising and encouraging results.