Nutritional Status and Pharmacological Treatment: Impact on the Toxicity and Quality of Life of Patients With Colorectal and Breast Cancer

Cancer patients undergo various treatment modalities depending on tumor type, location, disease staging, and overall clinical conditions. Pharmacological treatments and surgeries are fundamental therapeutic strategies in many cases and are part of the daily routine of integrated cancer treatment services. The calculation of pharmacological doses often takes into account the patient's body surface area (BSA) or only weight, without however assessing their nutritional status as such. The surgical procedure, on the other hand, may expose the patient to an inflammatory response secondary to the operative trauma that requires immediate reaction of the diseased organism for an adequate recovery. In this sense, the objective of the present study is to evaluate the relationship between the calculated medication's doses and the nutritional status of patients submitted topharmacological treatment with neoadjuvant or adjuvant intention: patients candidates for surgery. Different instruments will be used for nutritional assessment, as well as a questionnaire on quality of life, a specific criterion for evaluation of toxicities, laboratory tests and imaging. Patients will be observed for 1 year and the data collected will allow the analysis of possible side effects and the impact on quality of life.