BMJ Open (Aug 2022)

PREPARE trial: a protocol for a multicentre randomised trial of frailty-focused preoperative exercise to decrease postoperative complication rates and disability scores

  • Dean A Fergusson,
  • Alan Forster,
  • Gregg Nelson,
  • Monica Taljaard,
  • Jayna Holroyd-Leduc,
  • Manoj M Lalu,
  • John Muscedere,
  • Duminda Wijeysundera,
  • Daniel I McIsaac,
  • Sylvain Boet,
  • Kednapa Thavorn,
  • Michael McMullen,
  • Tarit Saha,
  • Eric Jacobsohn,
  • Tien Le,
  • Husein Moloo,
  • Allen Huang,
  • Gary Dobson,
  • Grace Ma,
  • Stephanie Johnson,
  • Colin McCartney,
  • Elijah Dixon,
  • Emily Hladkowicz,
  • Sylvain Gagne,
  • Julie Nantel,
  • Barbara Power,
  • Chelsia Gillis,
  • Rodney Breau,
  • Irfan Dhalla,
  • Susan Lee,
  • Rachel Khadaroo,
  • Amanda Meliambro,
  • Daniel Trottier,
  • Keely Barnes,
  • Laura Boland,
  • Karina Branje,
  • Gregory L. Bryson,
  • Rosaleen Chun,
  • Antoine Eskander,
  • Hannah Frazer,
  • Joanne Hutton,
  • John Joanisse,
  • Ana Johnson,
  • Luke T. Lavallee,
  • Cameron Love,
  • Ronald Moore,
  • Thomas Mutter,
  • Sudhir Nagpal,
  • Celena Scheede-Bergdhal,
  • Pablo Serrano,
  • Laura Tamblyn-Watts,
  • Carl van Walraven,
  • Brittany Warren,
  • Ilun Yang

DOI
https://doi.org/10.1136/bmjopen-2022-064165
Journal volume & issue
Vol. 12, no. 8

Abstract

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Introduction Frailty is a strong predictor of adverse postoperative outcomes. Prehabilitation may improve outcomes after surgery for older people with frailty by addressing physical and physiologic deficits. The objective of this trial is to evaluate the efficacy of home-based multimodal prehabilitation in decreasing patient-reported disability and postoperative complications in older people with frailty having major surgery.Methods and analysis We will conduct a multicentre, randomised controlled trial of home-based prehabilitation versus standard care among consenting patients >60 years with frailty (Clinical Frailty Scale>4) having elective inpatient major non-cardiac, non-neurologic or non-orthopaedic surgery. Patients will be partially blinded; clinicians and outcome assessors will be fully blinded. The intervention consists of >3 weeks of prehabilitation (exercise (strength, aerobic and stretching) and nutrition (advice and protein supplementation)). The study has two primary outcomes: in-hospital complications and patient-reported disability 30 days after surgery. Secondary outcomes include survival, lower limb function, quality of life and resource utilisation. A sample size of 750 participants (375 per arm) provides >90% power to detect a minimally important absolute difference of 8 on the 100-point patient-reported disability scale and a 25% relative risk reduction in complications, using a two-sided alpha value of 0.025 to account for the two primary outcomes. Analyses will follow intention to treat principles for all randomised participants. All participants will be followed to either death or up to 1 year.Ethics and dissemination Ethical approval has been granted by Clinical Trials Ontario (Project ID: 1785) and our ethics review board (Protocol Approval #20190409-01T). Results will be disseminated through presentation at scientific conferences, through peer-reviewed publication, stakeholder organisations and engagement of social and traditional media.Trial registration number NCT04221295.