• J Kellogg Parsons, John P Pierce, James Mohler, Electra Paskett, Sin-Ho Jung, Peter Humphrey, John R Taylor, Vicky A Newman, Leslie Barbier, Cheryl L Rock, and James Marshall.
• Division of Urologic Oncology, UC San Diego Moores Cancer Center, La Jolla, CA, United States; Department of Urology, UC San Diego Health System, La Jolla, CA, United States; VA San Diego Healthcare System, La Jolla, CA, United States. Electronic address: jkparsons@ucsd.edu.
• Contemp Clin Trials. 2014 Jul 1; 38 (2): 198-203.

BackgroundDiet may substantially alter prostate cancer initiation and progression. However, large-scale clinical trials of diet modification have yet to be performed for prostate cancer. The Men's Eating and Living (MEAL) Study (CALGB 70807 [Alliance]) is investigating the effect of increased vegetable consumption on clinical progression in men with localized prostate cancer.Study DesignMEAL is a randomized, phase III clinical trial designed to test whether an intervention that increases vegetable intake will decrease the incidence of clinical progression in men with clinically localized prostate cancer on active surveillance. We are randomizing 464 patients to either a validated telephone-based diet counseling intervention or a control condition in which patients receive a published diet guideline. The intervention will continue for two years. The primary outcome variable is clinical progression defined by serum prostate-specific antigen (PSA) and pathological findings on follow-up prostate biopsy. Secondary outcome variables include incidence of surgical and non-surgical treatments for prostate cancer, prostate-cancer related patient anxiety and health-related quality of life.ConclusionThe MEAL Study is assessing the effectiveness of a high-vegetable diet intervention for preventing clinical progression in men with localized prostate cancer on active surveillance.Copyright © 2014 Elsevier Inc. All rights reserved.

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