Improving Adherence to Oral Cancer Agents and Self Care of Symptoms Using an IVR The goals of this study are to improve adherence to oral chemotherapeutic medications and self-management of symptoms among cancer patients. More than 40 oral agents currently are on the market with projections that in three years 30% of the cancer treatment agents will be delivered in oral form. As a result, patients must assume responsibility for taking medications and self-management of associated side effects.