Cruciferous Vegetable Intervention to Reduce the Risk of Cancer Recurrence in Non–Muscle-Invasive Bladder Cancer Survivors: Development Using a Systematic Process (Preprint)

• DOI: 10.2196/preprints.32291
• Publication Date: 2021-07-26T19:46:34Z
• Authors: Karen H Kim Yeary; Nikia Clark; Frances Saad-Harf...; Deborah Erwin; Margaret Gates Ku...; Qiang Li; Susan E McCann; Han Yu; Catherine Lincourt; Jamie Zoellner; Li Tang
• Keywords: 03 medical and health sciences; 0302 clinical medicine; 3. Good health

BACKGROUND Bladder cancer is one of the top 10 most common cancers in the United States. Most bladder cancers (70%-80%) are diagnosed at early stages as non–muscle-invasive bladder cancer (NMIBC), which can be removed surgically. However, 50% to 80% of NMIBC cases recur within 5 years, and 15% to 30% progress with poor survival. Current treatments are limited and expensive. A wealth of preclinical and epidemiological evidence suggests that dietary isothiocyanates in cruciferous vegetables (Cruciferae) could be a novel, noninvasive, and cost-effective strategy to control NMIBC recurrence and progression.

OBJECTIVE The aim of this study is to develop a scalable dietary intervention that increases isothiocyanate exposure through Cruciferae intake in NMIBC survivors.

METHODS We worked with a community advisory board (N=8) to identify relevant factors, evidence-based behavior change techniques, and behavioral theory constructs used to increase Cruciferae intake in NMIBC survivors; use the PEN-3 Model focused on incorporating cultural factors salient to the group’s shared experiences to review the intervention components (eg, the saliency of behavioral messages); administer the revised intervention to community partners for their feedback; and refine the intervention.

RESULTS We developed a multicomponent intervention for NMIBC survivors consisting of a magazine, tracking book, live telephone call script, and interactive voice messages. Entitled <i>POW-R Health: Power to Redefine Your Health</i>, the intervention incorporated findings from our adaptation process to ensure saliency to NMIBC survivors.

CONCLUSIONS This is the first evidence-based, theoretically grounded dietary intervention developed to reduce bladder cancer recurrence in NMIBC survivors using a systematic process for community adaptation. This study provides a model for others who aim to develop behavioral, community-relevant interventions for cancer prevention and control with the overall goal of wide-scale implementation and dissemination.