Long-term adjuvant treatment of gastrointestinal stromal tumors (GIST) with imatinib—a comment and reflection on the PERSIST-5 study

Gastrointestinal stromal tumors (GIST) are the only solid tumors where adjuvant treatment is considered for more than one year. This is even more striking as it is now discussed whether adjuvant treatment should be done 3 or 5 years.