Determining the Effectiveness of Remote Monitoring of Cancer Patients With Oral Cancer Treatment Using Caaring® Software

Inclusion Criteria: * Patients who provide informed consent. * Age ≥18 years. * Oncology patients undergoing active outpatient oral therapy with: capecitabine, cyclin inhibitors, hormonal therapies, TKI inhibitors, monotherapy with or without intravenous therapy. * Oncology patients undergoing active outpatient oral oncology treatment expected within 12 weeks of inclusion. * Patients who must demonstrate sufficient technological skills to operate a smartphone through the "technological skills questionnaire." * Patients who do not meet the exclusion criteria. Exclusion Criteria: * Patients with cognitive or sensory difficulties or insufficient command of Spanish language that, in the opinion of the healthcare professional conducting the recruitment, makes it difficult to understand the questions posed in the surveys, scales, or instruments used in the study, provided they do not have a legal representative capable of participating in the study. * Patients for whom it is anticipated that follow-up will not be possible due to a change of residence. * Patients who are participating in any other clinical trial or experimental study at the time of recruitment. Participation in observational studies will not be an exclusion criteria. * Patients whose primary diagnosis is a mental illness or another poorly controlled medical condition. * Terminally ill patients and/or those receiving palliative care according to the criteria of SECPAL (Spanish Society of Palliative Care). * Institutionalized patients. * Patients who, according to the recruiting professional's assessment, are not considered eligible for inclusion because they are undergoing specific follow-up care in other units (hemodialysis, transplants, etc.) requiring mandatory hospital visits less frequently than once every two months. * Patients who do not demonstrate sufficient technological skills to use a smartphone through the "technological skills questionnaire."