Association between physical activity and neoadjuvant chemotherapy completion and pathologic complete response in primary breast cancer: the canto study

ABSTRACT BACKGROUND Regular physical activity is associated with improved symptom control in patients with breast cancer but its association with chemotherapy completion or response is

unclear. METHODS Using a prospective design, 1075 breast cancer patients receiving neoadjuvant chemotherapy between March 2012 and February 2017 were studied. Physical activity was assessed

using the Global Physical Activity Questionnaire [GPAQ-16], quantified in standardised MET-h/wk. Chemotherapy completion was defined as the proportion of patients completing planned

treatment course, requiring dose reduction, or requiring dose delay. Response was evaluated by pathologic complete response (pCR). Associations between physical activity and primary outcomes

were assessed using multivariable logistic regression models. RESULTS There was no differences between any chemotherapy completion outcome on the basis of physical activity classification.

The percent of patients not completing planned treatment was 5.7% for ≦0.33 MET-h/wk, compared with 6.8% for 0.34–16.65 MET-h/wk, and 4.6% for ≥16.6 MET-h/wk (_p_ = 0.52). No significant

relationships were observed between physical activity dose classification and pCR for the overall cohort or upon stratification by clinical subtype. CONCLUSION Future studies are required to

further investigate the relationship between pre-treatment levels of physical activity and function on treatment completion and response in breast and other cancer populations. CLINICAL

TRIAL REGISTRATION NCT01993498. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS Access through your

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our FAQs * Contact customer support SIMILAR CONTENT BEING VIEWED BY OTHERS ANALYSIS OF THE STORM COHORT REVEALS PHYSICAL ACTIVITY TO BE ASSOCIATED WITH SURVIVAL IN METASTATIC BREAST CANCER

Article Open access 01 July 2020 PHYSICAL DETERIORATION AND ADAPTIVE RECOVERY IN PHYSICALLY INACTIVE BREAST CANCER PATIENTS DURING ADJUVANT CHEMOTHERAPY: A RANDOMISED CONTROLLED TRIAL

Article Open access 16 June 2020 ETHNIC AND BIOLOGICAL DIFFERENCES IN THE ASSOCIATION BETWEEN PHYSICAL ACTIVITY AND SURVIVAL AFTER BREAST CANCER Article Open access 09 October 2020 DATA

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ACKNOWLEDGEMENTS An interim analysis from this study was presented at the San Antonio Breast Cancer Symposium 2018, Dec 4–8, San Antonio, TX. FUNDING CANTO is funded by Agence Nationale de

la Recherche (ANR-10-COHO-0004). IV-L received support from Odyssea, Foundation Gustave Roussy, and CCR17483507 Career Catalyst Research grant. ADM received support from Susan G. Komen,

Clinical Research Fellowship from ESMO. LWJ is supported in part by funding from the National Cancer Institute, AKTIV Against Cancer, the KavliTrust, and the Memorial Sloan Kettering Cancer

Center Support Grant/Core Grant (P30 CA008748). AUTHOR INFORMATION Author notes * These authors contributed equally: Ines Vaz-Luis, Lee W Jones. AUTHORS AND AFFILIATIONS * University of

California Los Angeles, Los Angeles, CA, USA Jennifer L. Baker * INSERM U 981 - Prédicteurs moléculaires et nouvelles cibles en oncologie, Institut Gustave Roussy, Villejuif, France Antonio

Di Meglio, Arnauld S. Gbenou, Mayssam El Mouhebb, Andre Fabrice & Ines Vaz-Luis * Memorial Sloan Kettering Cancer Center, New York City, NY, USA Neil M. Iyengar & Lee W. Jones *

Weill Cornell Medical College, New York, NY, USA Neil M. Iyengar & Lee W. Jones * INSERM U1018 CESP, Service de Biostatistique et d’Epidemiologie, Institut Gustave Roussy, Villejuif,

France Stefan Michiels * Institut Curie, Paris, France Paul Cottu * Institut Curie Saint Cloud, Saint Cloud, France Florence Lerebours & Patrick Arveux * Centre Georges-Francois Leclerc,

Dijon, France Charles Coutant * Insitut de cancerlogie de Lorraine, Nancy, France Anne Lesur * Centre Leon Berard, Lyon, France Oliver Tredan * Centre Oscar Lambret, Lille, France Laurence

Vanlemmens * Institut de Cancérologie Jean Godinot, Reims, France Christelle Jouannaud * Centre François Baclesse, Caen, France Iona Hrab * UNICANCER, Paris, France Sibille Everhard & 

Anne-Laure Martin * Medical Oncology Department, Institut Gustave Roussy, Villejuif, France Andre Fabrice & Ines Vaz-Luis Authors * Jennifer L. Baker View author publications You can

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inPubMed Google Scholar * Lee W. Jones View author publications You can also search for this author inPubMed Google Scholar CONTRIBUTIONS JLB: Wrote the paper. ADM, ASG, MEM: Conceived and

designed the analysis and performed the analysis. NMI: Conceived and designed the analysis. SM, PC, FL, CC, AL, OT, LV, CJ, IH, SE, A-LM, PA, AF: Collected the data. IV-L, LWJ: Conceived and

designed the analysis and wrote the paper. CORRESPONDING AUTHORS Correspondence to Ines Vaz-Luis or Lee W. Jones. ETHICS DECLARATIONS COMPETING INTERESTS LWJ owns stock in Pacylex, Inc. and

Illumisonics, Inc. IV-L reports personal fees from AstraZeneca, Kephren, Amgen, and Novartis. ADM reports personal fees from Thermo Fisher and grants from European Society for Medical

Oncology (ESMO), fellowship support, outside the submitted work. ETHICS APPROVAL AND CONSENT TO PARTICIPATE Informed consent was obtained from all patients prior to study participation at

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PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Baker, J.L., Di Meglio, A., Gbenou, A.S. _et al._ Association between physical activity and neoadjuvant chemotherapy

completion and pathologic complete response in primary breast cancer: the CANTO study. _Br J Cancer_ 127, 886–891 (2022). https://doi.org/10.1038/s41416-022-01870-y Download citation *

Received: 27 August 2020 * Revised: 28 April 2022 * Accepted: 25 May 2022 * Published: 17 June 2022 * Issue Date: 01 September 2022 * DOI: https://doi.org/10.1038/s41416-022-01870-y SHARE

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