Compression Therapy for HIV-Associated Kaposi Sarcoma Leg Lymphedema: Results of the Kenyan Improvised Compression for Kaposi Sarcoma Randomized Controlled Trial

Abstract

PURPOSE Evaluate the effectiveness of compression while receiving chemotherapy compared with chemotherapy alone in the treatment of HIV-associated Kaposi sarcoma (KS) lymphedema. METHODS A randomized controlled trial was conducted in a single oncology clinic in western Kenya ( NCT03404297 ). A computer-generated randomization schedule was used to allocate treatment arms. Randomized block design was used for stratification by lymphedema stage. Participants were HIV positive adults age ≥ 18 years on antiretroviral therapy with biopsy-proven KS associated with leg lymphedema and being initiated on chemotherapy. The intervention was 10 weeks of weekly clinic-based application of two-component paste compression bandages. The primary outcome was change in the Lower Extremity Lymphedema Index (LELI) score from week 0 to week 14. The secondary outcomes were change in the Lymphedema Quality of Life measure (LYMQOL) and change in the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 score from week 0 to week 14. Blinded outcome assessments were conducted. RESULTS Of 30 participants randomly assigned, 25 eligible patients (chemotherapy [control], n = 13; compression plus chemotherapy [intervention], n = 12) returned at week 14. Change in LELI, LYMQOL, and EORTC QLQ-C30 scores between week 14 and week 0 did not significantly differ by arm. The mean (standard deviation) change in LELI score was –25.9 (34.6) for the control arm compared with –13.3 (29.5) for the intervention arm, P = .340. The difference (95% CI) in the change in LELI score was –12.6 (–39.3 to 14.1). CONCLUSION Future studies evaluating a 14-week change in LELI for KS lymphedema should assume a standard deviation of approximately 30. Lessons learned from this pilot trial should inform the development of a larger, multicenter trial to evaluate the effectiveness of compression for KS lymphedema.