Kristine Kwekkeboom1, Yingzi Zhang1, Toby Campbell1,2, Christopher L Coe3, Erin Costanzo4, Ronald C Serlin5, Sandra Ward1. 1. School of Nursing, University of Wisconsin-Madison, Madison, WI, USA. 2. Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA. 3. Department of Psychology, College of Letters and Science, University of Wisconsin-Madison, Madison, WI, USA. 4. Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA. 5. Department of Educational Psychology, School of Education, University of Wisconsin-Madison, Madison, WI, USA.
Abstract
OBJECTIVE: Patients receiving treatment for advanced cancer suffer significant symptom burden, including co-occurring pain, fatigue, and sleep disturbance. There is limited evidence for effective interventions targeting this common symptom cluster. METHODS: A randomized controlled trial of a brief cognitive-behavioral strategies (CBS) intervention was conducted. A sample of 164 patients with advanced cancer receivingchemotherapy practiced imagery, relaxation, and distraction exercises or listened to cancer education recordings (attention-control) to manage co-occurring pain, fatigue, and sleep disturbance over a 9-week period. Symptom cluster severity, distress, and interference with daily life were measured at baseline and 3, 6, and 9 weeks. We also evaluated the moderating influence of imaging ability and number of concurrent symptoms, and mediating effects of changes in stress, anxiety, outcome expectancy, and perceived control over symptoms. RESULTS: Compared with the cancer education condition, participants receiving the CBS intervention reported less symptom cluster distress at week 6 (M = 1.82 vs 2.15 on a 0-4 scale, P < .05). No other group differences were statistically significant. The number of concurrent symptoms moderated the intervention effect on symptom cluster interference. Changes in stress, outcome expectancy, and perceived control mediated the extent of intervention effects on symptom outcomes, primarily at weeks 6 and 9. CONCLUSIONS: The brief CBS intervention had limited effects in this trial. However, findings regarding potential mediators affirm hypothesized mechanisms and provide insight into ways to strengthen future interventions to reduce the suffering associated with co-occurring pain, fatigue, and sleep disturbance.
RCT Entities:
OBJECTIVE:Patients receiving treatment for advanced cancer suffer significant symptom burden, including co-occurring pain, fatigue, and sleep disturbance. There is limited evidence for effective interventions targeting this common symptom cluster. METHODS: A randomized controlled trial of a brief cognitive-behavioral strategies (CBS) intervention was conducted. A sample of 164 patients with advanced cancer receiving chemotherapy practiced imagery, relaxation, and distraction exercises or listened to cancer education recordings (attention-control) to manage co-occurring pain, fatigue, and sleep disturbance over a 9-week period. Symptom cluster severity, distress, and interference with daily life were measured at baseline and 3, 6, and 9 weeks. We also evaluated the moderating influence of imaging ability and number of concurrent symptoms, and mediating effects of changes in stress, anxiety, outcome expectancy, and perceived control over symptoms. RESULTS: Compared with the cancer education condition, participants receiving the CBS intervention reported less symptom cluster distress at week 6 (M = 1.82 vs 2.15 on a 0-4 scale, P < .05). No other group differences were statistically significant. The number of concurrent symptoms moderated the intervention effect on symptom cluster interference. Changes in stress, outcome expectancy, and perceived control mediated the extent of intervention effects on symptom outcomes, primarily at weeks 6 and 9. CONCLUSIONS: The brief CBS intervention had limited effects in this trial. However, findings regarding potential mediators affirm hypothesized mechanisms and provide insight into ways to strengthen future interventions to reduce the suffering associated with co-occurring pain, fatigue, and sleep disturbance.
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