Gielissen, M. F., Verhagen, S., Witjes, F., & Bleijenberg, G. (2006). Effects of cognitive behavior therapy in severely fatigued disease-free cancer patients compared with patients waiting for cognitive behavior therapy: a randomized controlled trial. Journal of Clinical Oncology, 24, 4882–4887.
Intervention treatments were individualized based on patient scores on specific questionnaires that measured the six modules (perpetuating factors) of postcancer fatigue. These included:
If a patient had a score on a questionnaire that indicated problems in a specific module, the accessory module became part of the treatment. Therapy only varied in the number of modules, but within each module, the therapy was standardized. The intervention was delivered by three therapists with previous experience with patients with chronic fatigue. Therapy sessions ranged between five and 26 sessions (mean = 12.5 sessions [standard deviation = 4.7 sessions]), with a duration of one hour during a six-month period. Cognitive and behavioral techniques used in therapy addressed the six modules of postcancer fatigue. Patient outcomes were assessed at baseline and six months after enrollment.
Patients were undergoing the active treatment phase of care.
The study was a randomized, controlled trial with a
Checklist Individual Strength (CIS)
Patients in the CBT intervention group experienced a statistically significant decline in fatigue severity (difference, 13.3; 95% confidence interval [CI] [8.6, 18.1]), as well as functional impairment (difference, 21.6; 95% CI [12.7, 30.4]) compared with patients in the waiting list condition (p < 0.001). The proportion of patients with significant improvements in fatigue severity and functional impairment was significantly higher than the intervention condition compared with the waiting list condition, indicating clinical significance (p < 0.001).