Procedures
The MD Anderson Institutional Review Board approved all procedures prior to participant enrollment. Research staff used the electronic clinic appointment system to identify potential participants. Before the COVID‐19 pandemic (i.e., prior to March 2020), we approached patients and caregivers during clinic visits and confirmed their eligibility and obtained their written informed consent prior to data collection; if caregivers were not present, we asked patients for their permission to contact their caregivers to obtain consent. During the pandemic (March 2020 onward), all participants were contacted via phone, and consent was obtained electronically. Participants completed survey measures prior to randomization at baseline and completed follow‐up assessments in REDCap at the completion of patients’ radiotherapy (6 weeks) and at the 3‐month follow‐up (12 weeks). To gain further insights into caregivers’ experiences with study participation, a subset of participants (n=15 caregivers) completed individual, qualitative interviews at the 12‐week assessment. (A description of the qualitative interview methods along with participant characteristics is given in the Supplementary 