Table 1. Inclusion and exclusion criteria of this study.

	Inclusion criteria	Exclusion criteria
Population and conditions	Patients with cancer aged 18 years and older. Patients diagnosed with cancer. Patients with cancer taking oral SACTsa.	Patients with cancer including pediatrics, children, adolescents, neonates, or infants. Studies that include mixed age groups of participants with cancer. Patients with cancer taking nonoral SACTsa. Patients with cancer exclusively receiving injectable SACTsa.
Intervention and comparator	The use of digital interventions such as: Mobile apps Web-based platforms Wearable devices Telemedicine interventions Reminder systems (eg, text message reminders) Virtual support groups or web-based communities Comparator: standard or usual care without digital interventions.	Studies that use nondigital interventions to improve adherence. Studies with no suitable or appropriate comparator.
Outcome	Adherence measures such as: Medication possession ratio Proportion of days covered Self-reported adherence measures (eg, questionnaires and surveys) Pharmacy refill data Medication event monitoring systems (eg, smart pill bottles and electronic pill caps) Biological markers	The study does not contain outcome measures related to adherence. Adherence measures are based solely on subjective reporting (unless validated self-reported measures were used).
Study type	Human studies	Animal or in vitro studies
Language	English	Non-English language
Publication	Randomized controlled trials and clinical trials (comparative interventional trials)	Review papers, systematic reviews, meta-analyses, cross-sectional studies, case-control studies, pilot studies, feasibility studies, editorials, commentaries, letters, opinion pieces, conference abstracts, gray literature, and non–peer-reviewed sources.

^aSACTs: systemic anticancer therapies.