Advanced gastrointestinal stromal tumor: Reliable classifcation of imatinib plasma trough concentration via machine learning

Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the digestive tract. Acquired functional mutations in the tyrosine-protein kinase growth factor receptor proto-oncogene (KIT) and platelet-derived growth factor-alpha gene lead to increased tyrosine kinase activity, which is considered a key factor in the pathogenesis of GIST.