2.1. Study Design and Population
fatigue, cancer, cognitive limitations, visual impairment, pain
ONCOLOGY, CANCER, EXCESSIVE SLEEPINESS
This randomized clinical trial was conducted in an outpatient care unit for cancer patients at an extra-large private general hospital located in the southern part of Sao Paulo, Brazil. All participants provided written informed consent. The study was approved by the Institutional Research Ethics Review Board in accordance with the Declaration of Helsinki and was registered with The inclusion criteria comprised patients of both sexes, over 18 years old, with preserved clinical conditions and communication functions that allowed them to participate in the study. They were undergoing infusion chemotherapy for any type of cancer. Exclusion criteria comprised patients who received immunotherapy infusion, individuals with visual impairment, and those who experienced any side effects or deterioration in clinical condition (e.g., excessive sleepiness, fatigue, cognitive limitations) during the interview/intervention period.Since antiemetic medications and certain pain control drugs can affect patients’ psychological state, the control and intervention groups received a similar drug protocol. The institution conducting this study is certified by the American Society of Clinical Oncology (ASCO) [