PURPOSE

To determine the efficacy of nurse-delivered brief behavioral treatment for insomnia (BBTI) compared to an attention control, in a heterogeneous sample of cancer survivors to reduce insomnia symptom severity.

METHODS

We recruited 132 participants from cancer care clinics, who had an Insomnia Severity Index (ISI) score ≥ 8. Participants were randomized into two groups: an experimental BBTI group and a healthy eating attention control group. Demographics survey at baseline, and sleep-related questionnaires, self-reported sleep diaries, and wrist-worn actigraphy at baseline, 1, 3, and 12 months were collected. Statistical analyses used analysis of covariance (ANCOVA) models with two-sided 0.05 nominal significance level for treatment effect for primary outcome of insomnia severity at 1 month.

RESULTS

Participants were cancer survivors with a mean age of 63.7 years, 55% female, 88.6% white, with breast, prostate, colorectal, and lung cancer. Statistically significant group differences were observed at all time points for ISI and sleep quality (ISI effect sizes 0.56, 0.59, and 0.54 respectively). Additionally, at 1 month, those in insomnia remission (ISI ≤ 8) were higher for the BBTI (55.1%) compared to the control group (43.3%). Secondary outcomes from sleep diary measures (i.e., sleep efficiency, sleep onset latency, wake after sleep onset) were significant at 1 month.

CONCLUSION

The BBTI group was significantly effective in reducing insomnia severity and improving sleep quality over time compared to the control among cancer survivors.

CLINICAL TRIAL REGISTRATION

Clinical trials identifier: http://ClinicalTrials.gov , NCT03810365.

IMPLICATIONS FOR CANCER SURVIVORS

Implementing BBTI in survivorship settings can effectively address and manage insomnia symptoms, thus bridging a crucial gap in care for cancer survivors.