# Structured exercise programmes after curative treatment

Source: https://onco.cc/technologies/structured-exercise-survivorship/  
OnCo record `structured-exercise-survivorship` (Technology). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

A supervised, coached exercise programme for three years after bowel cancer treatment cut recurrence and death in a large randomised trial. It is the first lifestyle intervention proven to work like an adjuvant drug.

## Summary

The CHALLENGE trial (CCTG CO.21, NEJM 2025) randomised 889 patients with resected stage III or high-risk stage II colon cancer after adjuvant chemotherapy to a three-year structured exercise programme with behavioural support, or health-education materials. Disease-free survival improved (5-year 80.3% vs 73.9%, HR 0.72) and so did overall survival (8-year 90.3% vs 83.2%, HR 0.63). The target was an increase of about 10 MET-hours per week, roughly 45 minutes of brisk walking most days. This is level-1 evidence in one disease; whether it generalises to breast, prostate and lung cancer is being tested, and the delivery model (physical activity consultants, supervised sessions tapering over years) is the implementation problem.

## Fields

- Kind: Technology
- Status: established
- Last checked: 2026-09-08
- Principle: Regular aerobic activity lowers circulating insulin, IGF-1 and inflammatory cytokines, improves body composition and immune surveillance, and may reduce the fitness of dormant disseminated tumour cells. Behavioural coaching sustains adherence long enough for these to matter.
- Since: 2025
- Strengths: Randomised evidence of a survival benefit with an effect size comparable to adjuvant drugs; Cheap, safe, and improves fatigue, fitness and quality of life whatever the cancer effect; Cardiac rehabilitation shows the delivery model can be funded at scale
- Limitations: Proven so far in one cancer and one trial; replication is needed; Adherence falls over years without coaching; Almost no health system reimburses a supervised programme

## Sources

- CHALLENGE (NEJM 2025): https://doi.org/10.1056/NEJMoa2502760
- ASCO exercise, diet and weight guideline 2022: https://ascopubs.org/doi/10.1200/JCO.22.00687

## Connected records

- ideas: [A dose-finding trial for exercise after cancer](https://onco.cc/ideas/idea-nl-exercise-dose-finding/), [Pay for supervised exercise the way we pay for drugs](https://onco.cc/ideas/idea-bio2-exercise-reimbursement/), [Structured exercise prescribed like a drug in all curative-intent cancer care](https://onco.cc/ideas/idea-exercise-as-adjuvant/), [Treat insomnia in survivors and measure whether the cancer notices](https://onco.cc/ideas/idea-nl-sleep-circadian-survivorship-rct/), [Write a rehabilitation prescription at the end of treatment, and fund it like a drug](https://onco.cc/ideas/idea-rejuv-rehabilitation-prescription-at-discharge/)
- cancers: [Colorectal cancer](https://onco.cc/cancers/colorectal/), [HR-positive / HER2-negative breast cancer](https://onco.cc/cancers/breast-hr-positive/), [Prostate cancer](https://onco.cc/cancers/prostate/)
- fronts: [Diet, Exercise & Lifestyle](https://onco.cc/fronts/nutrition-lifestyle/), [Recovery & Rejuvenation](https://onco.cc/fronts/rejuvenation/), [Supportive Care & Survivorship](https://onco.cc/fronts/supportive-care/)
- technologies: [After treatment in Australia: a stated model of survivorship care](https://onco.cc/technologies/rejuv-access-survivorship-care-australia/), [Dietitian-led weight-loss programmes in HR-positive breast cancer](https://onco.cc/technologies/dietitian-led-weight-loss-breast/), [Exercise & lifestyle oncology](https://onco.cc/technologies/exercise-oncology/), [Exercise is the best-evidenced thing on this front, and most survivors are not doing it](https://onco.cc/technologies/rejuv-access-exercise-programmes/), [Fatigue after cancer treatment: what actually works](https://onco.cc/technologies/cancer-related-fatigue-management/), [Going back to driving, lifting and exercise](https://onco.cc/technologies/rejuv-rehab-driving-and-exercise-return/), [Going back to work after cancer: the rates, and the programmes that change them](https://onco.cc/technologies/rejuv-life-return-to-work/), [Survivorship care and late-effects surveillance](https://onco.cc/technologies/survivorship-care-plan/), [The biological age test you can buy, and whether to buy one](https://onco.cc/technologies/rejuv-measure-consumer-biological-age-tests/), [The exercise prescription after cancer: the dose the guidelines state](https://onco.cc/technologies/exercise-prescription-after-cancer/), [Time-restricted eating in cancer prevention and survivorship](https://onco.cc/technologies/time-restricted-eating/), [Walking, gripping and standing up: the tests that take five minutes](https://onco.cc/technologies/rejuv-measure-functional-tests/), [Wearables and step counts: measuring what someone actually does](https://onco.cc/technologies/rejuv-measure-wearables-and-step-counts/), [What actually works after treatment](https://onco.cc/technologies/rejuv-frontier-what-works/)
- terms: [Energy balance](https://onco.cc/terms/energy-balance/), [MET-hours per week](https://onco.cc/terms/met-hours/), [Metabolic syndrome and insulin resistance](https://onco.cc/terms/metabolic-syndrome/), [Obesity-related cancers (IARC list of 13)](https://onco.cc/terms/obesity-related-cancers/)
- trials: [AMICO: aerobic or resistance exercise to improve outcome in metastatic colorectal cancer](https://onco.cc/trials/rejuv-trial-amico/), [CHALLENGE (CCTG CO.21)](https://onco.cc/trials/challenge/)
- bottlenecks: [Prevention we already have is not deployed](https://onco.cc/bottlenecks/b-prevention-adoption/), [Rehabilitation is recommended everywhere and commissioned almost nowhere](https://onco.cc/bottlenecks/rejuv-agenda-rehabilitation-not-commissioned/), [Survivorship and late effects are neglected](https://onco.cc/bottlenecks/b-survivorship/)
- roadmaps: [Diet, exercise and lifestyle roadmap: causes established → interventions that disappointed → exercise proven as treatment](https://onco.cc/roadmaps/nutrition-lifestyle-roadmap/), [Recovery and rejuvenation roadmap: cure is not enough → survivorship gets a name → the cohorts that measured the cost → exercise proven as treatment → biological ageing measured and sold → repair, if anyone funds it](https://onco.cc/roadmaps/rejuvenation-roadmap/), [Supportive care and survivorship roadmap: making treatment bearable → proving it extends life → caring for tens of millions afterwards](https://onco.cc/roadmaps/survivorship-roadmap/)
- collections: [LIVESTRONG at the YMCA](https://onco.cc/collections/livestrong-at-the-ymca/)

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