Clinical effectiveness of best-evidence cancer distress management in a real-world practice setting.

Background: Despite 40 years of evidence supporting psychosocial interventions as a component of comprehensive cancer care, patients continue to report vast unmet psychosocial needs and distress. Cognitive behavioral therapies for cancer distress (CBT-C) are the most rigorously tested class of psychosocial interventions for cancer care.

Purpose: To report clinical effectiveness outcomes of cancer-related distress and self-efficacy following implementation of best-evidence CBT-C, adapted for a real-world, billable practice setting.

Methods: Patients who completed group-delivered, CBT-C (10 intervention hours, 5 sessions) in the practice setting were invited to enroll in a research study to document cancer distress across the year following CBT-C. Participants (n = 65) were primarily middle-aged (mean 50.5 years, 17% were young adults ≤40 years), female, and White. Analyses utilized mixed linear models with intent-to-treat procedures. Given group delivery and social skills training content within CBT-C, social self-efficacy was assessed as a potential treatment mechanism.

Results: Distress decreased across the year following CBT-C (mean score change of 20 points for YAs, 6 points for non-YAs), with statistically significant age x time effects. Within-person improvements in social self-efficacy scores were related to reductions in cancer distress, including distress subscales of intrusive thoughts, avoidant coping, and hyperarousal. The model explained 76.6% of the total variance in cancer distress.

Conclusions: This study demonstrates the effective translation of CBT-C from controlled research trials to the practice setting. CBT-C effectiveness within a mixed-cancer population and relatively rural region of the US is also supported. CBT-C can be effectively translated to the practice settings for which it is intended.