Adiposity and Muscle Strength in Men With Prostate Cancer and Cardiovascular Outcomes.

Background

There are limited data on the physical effects of androgen deprivation therapy (ADT) for prostate cancer (PC), and on the relationships of such measures of adiposity and strength to cardiovascular outcomes.

Objectives

The primary objective of this study was to evaluate the relationships of measures of adiposity and strength to cardiovascular outcomes (cardiovascular death, myocardial infarction, stroke, heart failure, arterial revascularization, peripheral arterial disease, and venous thromboembolism) in patients with PC. A secondary objective was to characterize the relationships between ADT use and 12-month changes in these physical measures.

Methods

This international, prospective cohort study included 3,967 patients with PC diagnosed in the prior 12 months or being treated with ADT for the first time. Median follow-up duration was 2.3 years.

Results

Participants' mean age was 68.5 years, and 1,731 (43.6%) were exposed to ADT. ADT was associated with a 1.6% increase in weight, a 2.2% increase in waist circumference, a 1.6% increase in hip circumference, a 0.1% increase in waist-to-hip ratio, a 27.4% reduction in handgrip strength, and a 0.1% decrease in gait speed. High waist circumference and low handgrip strength were associated with adverse cardiovascular outcomes. Adjusting for age, education, race, tobacco and alcohol use, physical activity, cardiovascular disease, glomerular filtration rate, and ADT use, waist circumference above the highest quartile (110 cm) and handgrip strength below the lowest quartile (29.5 kg) were associated with higher likelihoods of a future cardiovascular event, with respective HRs of 1.40 (95% CI: 1.03-1.90;

Conclusions

ADT was associated with increased adiposity and reduced strength over 12-month follow-up. High waist circumference and low baseline strength were associated with future adverse cardiovascular outcomes.

Informations de copyright

© 2024 The Authors.

Déclaration de conflit d'intérêts

Research support for this study was provided by the Movember Foundation, the Canadian Cancer Society, and Tolmar Pharmaceuticals. This study was presented in part at a Late-Breaking Science Session at the Scientific Sessions of the European Society of Cardiology, Amsterdam, the Netherlands, August 28, 2023. Dr Leong has received consultancy fees or honoraria from Abbvie, Ferring, Ipsen, Janssen, Jazz Pharmaceuticals, Myovant, Novartis, Pfizer, Sanofi, Antev, AstraZeneca, Bayer, Boston Scientific, and XFacto; and has received research support from Novartis and Tolmar. Dr Higano has received consultancy fees or honoraria from AstraZeneca, Astellas, Bayer, Genetech, Eli Lilly, Merck Sharp & Dohme, Myovant, Menarini, Tolmar, Vaccitech, and Verity; is a stockholder of CTI Biopharma; and is a data and safety monitoring board member or chair in trials sponsored by AstraZeneca, Advantagene, and Exelixis. Dr Lavallée is an advisory board member for Astellas, Knight, Bayer, and AAA; and has received a grant from Tolmar unrelated to the present work. Dr Gopaul is an advisory board member for and has received honoraria from TerSera, Bayer, Ferring, Abbvie, and Knight. Dr Duceppe has received grant funding from Roche Diagnostics and Abbott Laboratories. Dr Guha is an advisory board member for Pfizer, Myovant, and Novartis; and has received research grants from the American Heart Association (847740 and 863620) and the U.S. Department of Defense PC Research Program (HT94252310158). All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.