Question: Can cognitive behavioral therapy improve fatigue in cancer patients?

Context:
Physical activity, educational interventions, and cognitive-behavioral therapy have the most supportive data and can be recommended to patients with confidence. 
For women undergoing radiotherapy (3 RCTs), hypnosis combined with cognitive-behavioral therapy improved distress and fatigue.
Patients in the CBT group reported a significantly larger decrease in fatigue scores than patients in the waiting list group.
However, relative to VCBT-I, PCBT-I was associated with significantly greater improvements of insomnia severity, early morning awakenings, depression, fatigue, and dysfunctional beliefs about sleep. 
CBT-I may also improve mood, fatigue, and overall quality of life, and can be successfully delivered through a variety of treatment modalities, making it possible to reach a broader range of patients who may not have access to more traditional programs. 
No group differences in improvement were noted relative to QOL, fatigue, or mood. 
In case of persistent fatigue, personalized cognitive behavioral therapy can be considered.
ONCLUSION: The results support CBTH as an evidence-based intervention to control fatigue in patients undergoing radiotherapy for breast cancer. 
Severe fatigue after cancer treatment can be treated effectively with cognitive behavioral therapy (CBT), but it is unclear whether CBT has an effect on cognitive functioning.
CONCLUSION: CBT for post-cancer fatigue has already been shown to be an effective therapy. 
Frequently reported side effects include cancer-related fatigue, peripheral neuropathy, and psychological distress. Exercise and cognitive behavioral therapy interventions have counteracted such adverse effects in other cancer populations. 
There is evidence from methodologically rigorous controlled trials that exercise, psycho-educational interventions, and cognitive-behavioral therapy for insomnia are effective in the treatment of CRF, and a wide range of pharmacologic and nonpharmacologic interventions has shown initial promise in single-arm pilot studies with small, heterogeneous samples. 
CONCLUSIONS: Physical training combined with cognitive-behavioral therapy and physical training alone had significant and beneficial effects on fatigue compared with no intervention. Physical training was equally effective as or more effective than physical training combined with cognitive-behavioral therapy in reducing cancer-related fatigue, suggesting that cognitive-behavioral therapy did not have additional beneficial effects beyond the benefits of physical training.
RESULTS: Imagery/hypnosis and CBT/CST interventions have produced improvement in all the three cancer-related symptoms individually: pain, fatigue, and sleep disturbance.
RESULTS: Multilevel modeling indicated that for weekly FACIT fatigue data, there was a significant effect of the CBTH intervention on the rate of change in fatigue (p < .05), such that on average, CBTH participants' fatigue did not increase over the course of treatment, whereas control group participants' fatigue increased linearly.
ONCLUSION: The results suggest that CBTH is an effective means for controlling and potentially preventing fatigue in breast cancer radiotherapy patients.
Results were consistent with the view that CBTH was effective in managing fatigue and skin discomfort, and increasing relaxation.
RESULTS: Participants in the Internet group showed significant improvements at post-assessment compared with those in the control group in overall insomnia severity (F(1,26) = 22.8; p<0.001), sleep efficiency (F(1,24) = 11.45; P = 0.002), sleep onset latency (F(1,24) = 5.18; P = 0.03), soundness of sleep (F(1,24) = 9.34; P = 0.005), restored feeling upon awakening (F(1,24) = 11.95; P = 0.002), and general fatigue (F(1,26) = 13.88; P = 0.001). 
Cognitive-behavior therapy (CBT) has alleviated fatigue and improved QOL of cancer patients; however, little is known about the effects of nurse-led CBT on breast cancer patients undergoing radiotherapy.
Physical training was equally effective as or more effective than physical training combined with cognitive-behavioral therapy in reducing cancer-related fatigue, suggesting that cognitive-behavioral therapy did not have additional beneficial effects beyond the benefits of physical training.
Cognitive-behavior therapy (CBT) has alleviated fatigue and improved QOL of cancer patients; however, little is known about the effects of nurse-led CBT on breast cancer patients undergoing radiotherapy.
Physical training was equally effective as or more effective than physical training combined with cognitive-behavioral therapy in reducing cancer-related fatigue, suggesting that cognitive-behavioral therapy did not have additional beneficial effects beyond the benefits of physical training.
The positive effects of cognitive behavioral therapy in adolescents with chronic fatigue syndrome are sustained after cognitive behavioral therapy

Answer: Yes, it has been documented that cognitive behavioral therapy reduces fatigue symptom severity in cancer patients. In addition,  cognitive behavioral therapy has been also shown to improve mood and overall quality of life, and it can be successfully delivered through a variety of treatment modalities in patients with cancer.
Exact answer: yes