App-Based Mindfulness Intervention for the Improvement of Quality of Life in Patients With Metastatic Renal Cell Cancer

This trial tests the feasibility of an application (app)-based mindfulness intervention and its effect on improving quality of life in patients with renal cell cancer that has spread to other places in the body (metastatic). This trial aims to see whether an app-based mindfulness intervention may help patients cope with their disease.

Inclusion Criteria: * Sufficiently fluent in English * Cytologically or pathologically verified diagnosis of renal cell carcinoma (RCC) * Evidence of metastatic disease (including at a minimum computed tomography \[CT\] of the chest, abdomen and pelvis for staging) * Undergoing immunotherapy * A "moderate" or greater fear of cancer progression, as demonstrated by an Fear of Cancer Recurrence-7 (FCR-7) score of \>= 17 * A fear of cancer progression, as demonstrated by a Patient Reported Outcomes Measurement Information System (PROMIS)-Anxiety score \>= 13 * Have smart phone with internet access * Not suffering from current major depressive disorder, bipolar disorder or other psychiatric disorder * Not currently engaging in meditation one or more times per week within the previous year * Has not participated in an mindfulness-based cancer recovery (MBCR) or mindfulness-based stress reduction (MBSR) program in the past 5 years