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OBJECTIVES: Fatigue and other treatment-related symptoms (e.g., sleep disturbance) are critical targets for improving quality of life in patients undergoing chemotherapy. Yoga may reduce the burden of such symptoms. This study investigated the feasibility of conducting a randomized controlled study of a brief yoga intervention during chemotherapy for colorectal cancer.DESIGN: We randomized adults with colorectal cancer to a brief Yoga Skills Training (YST) or an attention control (AC; empathic attention and recorded education).
SETTING: The interventions and assessments were implemented individually in the clinic while patients were in the chair receiving chemotherapy.
INTERVENTIONS: Both interventions consisted of three sessions and recommended home practice.
MAIN OUTCOME MEASURES: The primary outcome was feasibility (accrual, retention, adherence, data collection). Self-reported outcomes (i.e., fatigue, sleep disturbance, quality of life) and inflammatory biomarkers were also described to inform future studies.
RESULTS: Of 52 patients initially identified, 28 were approached, and 15 enrolled (age Mean = 57.5 years; 80% White; 60% Male). Reasons for declining participation were: not interested (n = 6), did not perceive a need (n = 2), and other (n = 5). Two participants were lost to follow-up in each group due to treatment changes. Thus, 75% of participants were retained in the YST and 71% in the AC arm. Participants retained in the study adhered to 97% of the in-person intervention sessions and completed all questionnaires.
CONCLUSIONS: This study demonstrated the feasibility of conducting a larger randomized controlled trial to assess YST among patients receiving chemotherapy for colorectal cancer. Data collected and challenges encountered will inform future research.
BACKGROUND: Treatment-related symptoms and decreased health-related quality of life (HRQoL) frequently occur during chemotherapy for breast cancer. Although research findings suggest that yoga can reduce symptoms and Improve HRQoL after treatment, potential benefits of yoga during chemotherapy have received minimal attention.OBJECTIVE: To estimate accrual, adherence, study retention, and preliminary efficacy of a yoga intervention compared with an active control group for breast cancer patients during chemotherapy.
METHODS: Women with stage I-III breast cancer were recruited from 3 community cancer clinics and randomized to 10 weeks of gentle yoga or wellness education. Depressive symptoms, fatigue, sleep, and HRQoL were assessed at baseline, mid-intervention (Week 5), and after intervention (Week 10).
RESULTS: 40 women aged 29-83 years (median, 48 years; 88% white) were randomized to yoga (n = 22) or wellness education (n = 18). The groups did not differ significantly on baseline characteristics, adherence, or study retention. Participant feedback was positive and comparable between groups. Meaningful within-group differences were identified For sleep adequacy and quantity in yoga participants and for somnolence in wellness-education participants.
LIMITATIONS: Small sample size and lack of a usual-care control group.
CONCLUSIONS: This study established Feasibility of a community-based randomized trial of yoga and an active comparison group for women undergoing chemotherapy for breast cancer. Preliminary efficacy estimates suggest that yoga improves sleep adequacy Symptom severity and interference remained stable during chemotherapy for the yoga group and snowed a trend toward increasing in the control group. The study highlighted obstacles to multisite yoga research during cancer treatment.
FUNDING/SPONSORSHIP: National Cancer Institute (3U10 CA081851, PI; Shaw; R25 CA122061, PI: Avis); Translational Science Institute, Wake Forest School of Medicine.