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Lookup NU author(s): Professor Alastair GreystokeORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2021, The Author(s). Background: Excess adiposity at diagnosis and weight gain during chemotherapy is associated with tumour recurrence and chemotherapy toxicity. We assessed the efficacy of intermittent energy restriction (IER) vs continuous energy restriction (CER) for weight control and toxicity reduction during chemotherapy. Methods: One hundred and seventy-two women were randomised to follow IER or CER throughout adjuvant/neoadjuvant chemotherapy. Primary endpoints were weight and body fat change. Secondary endpoints included chemotherapy toxicity, cardiovascular risk markers, and correlative markers of metabolism, inflammation and oxidative stress. Results: Primary analyses showed non-significant reductions in weight (−1.1 (−2.4 to +0.2) kg, p = 0.11) and body fat (−1.0 (−2.1 to +0.1) kg, p = 0.086) in IER compared with CER. Predefined secondary analyses adjusted for body water showed significantly greater reductions in weight (−1.4 (−2.5 to −0.2) kg, p = 0.024) and body fat (−1.1 (−2.1 to −0.2) kg, p = 0.046) in IER compared with CER. Incidence of grade 3/4 toxicities were comparable overall (IER 31.0 vs CER 36.5%, p = 0.45) with a trend to fewer grade 3/4 toxicities with IER (18%) vs CER (31%) during cycles 4–6 of primarily taxane therapy (p = 0.063). Conclusions: IER is feasible during chemotherapy. The potential efficacy for weight control and reducing toxicity needs to be tested in future larger trials. Clinical trial registration: ISRCTN04156504.
Author(s): Harvie M, Pegington M, Howell SJ, Bundred N, Foden P, Adams J, Graves L, Greystoke A, Mattson MP, Cutler RG, Williamson J, Livingstone K, McMullen D, Sellers K, Lombardelli C, Cooper G, McDiarmid S, Howell A
Publication type: Article
Publication status: Published
Journal: British Journal of Cancer
Online publication date: 15/12/2021
Acceptance date: 22/11/2021
Date deposited: 12/01/2022
ISSN (print): 0007-0920
ISSN (electronic): 1532-1827
Publisher: Springer Nature
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