Evidence map›Paper›PMID 30332430›Full record

Trial reportPloS one2018

Effects of exercise on circulating tumor cells among patients with resected stage I-III colon cancer.

Justin C Brown, Andrew D Rhim, Sara L Manning, Luke Brennan, Alexandra I Mansour, Anil K Rustgi, Nevena Damjanov, Andrea B Troxel, Michael R Rickels, Bonnie Ky and 3 more

Abstract readClinical Trial
In one paragraph

Trial report in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  7. Article
  8. Mechanical signatures in cancer metastasis.npj biological physics and mechanics · 2025
    Review
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  10. Observational
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Justin C BrownDana-Farber Cancer Institute, Boston, MA, United States of America.ORCID 0000-0001-7540-4913
Andrew D RhimMD Anderson Cancer Center, Houston, TX, United States of America.
Sara L ManningUniversity of Michigan Medical School, Ann Arbor, MI, United States of America.
Luke BrennanUniversity of Michigan Medical School, Ann Arbor, MI, United States of America.ORCID 0000-0002-5616-7913
Alexandra I MansourUniversity of Michigan Medical School, Ann Arbor, MI, United States of America.
Anil K RustgiUniversity of Pennsylvania, Philadelphia, PA, United States of America.
Nevena DamjanovUniversity of Pennsylvania, Philadelphia, PA, United States of America.
Andrea B TroxelNew York University, New York, NY, United States of America.
Michael R RickelsUniversity of Pennsylvania, Philadelphia, PA, United States of America.ORCID 0000-0002-9253-838X
Bonnie KyUniversity of Pennsylvania, Philadelphia, PA, United States of America.
Babette S ZemelUniversity of Pennsylvania, Philadelphia, PA, United States of America.
Kerry S CourneyaUniversity of Alberta, Edmonton, Alberta, Canada.
Kathryn H SchmitzPenn State College of Medicine, Hershey, PA, United States of America.

Funding

Institutional Clinical and Translational Science AwardUL1TR000003 · NCATS · UNIVERSITY OF PENNSYLVANIA · PI FITZGERALD, GARRET A · 2012 to 2015
$38.9M
The Women In Steady Exercise Research (WISER) SurwVor TrialU54CA155850 · NCI · UNIVERSITY OF PENNSYLVANIA · PI SCHMITZ, KATHRYN H. · 2011 to 2015
$9.1M
The COURAGE Trial: Colon Recurrence and Aerobic Exercise: A Feasibility StudyR21CA182767 · NCI · UNIVERSITY OF PENNSYLVANIA · PI SCHMITZ, KATHRYN H. · 2014 to 2015
$377k
Inflammation, Physical Activity, and Colon Cancer Recurrence and SurvivalK99CA218603 · NCI · DANA-FARBER CANCER INST · PI BROWN, JUSTIN C · 2017 to 2018
$260k
Effects of Exercise on Visceral Adiposity & Hyperinsulinemia in Colon Cancer SurvivorF31CA192560 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BROWN, JUSTIN C · 2015 to 2016
$69k
NCATS NIH HHS UL1 TR000003NCI NIH HHS F31 CA192560NCI NIH HHS K99 CA218603NCI NIH HHS R21 CA182767NCI NIH HHS U54 CA155850
6 · The paper itself

Abstract

backgroundPhysical activity is associated with a lower risk of disease recurrence among colon cancer patients. Circulating tumor cells (CTC) are prognostic of disease recurrence among stage I-III colon cancer patients. The pathways through which physical activity may alter disease outcomes are unknown, but may be mediated by changes in CTCs.

methodsParticipants included 23 stage I-III colon cancer patients randomized into one of three groups: usual-care control, 150 min∙wk-1 of aerobic exercise (low-dose), and 300 min∙wk-1 of aerobic exercise (high-dose) for six months. CTCs from venous blood were quantified in a blinded fashion using an established microfluidic antibody-mediated capture device. Poisson regression models estimated the logarithmic counts of CTCs.

resultsAt baseline, 78% (18/23) of patients had ≥1 CTC. At baseline, older age (-0.12±0.06; P = 0.04), lymphovascular invasion (0.63±0.25; P = 0.012), moderate/poor histology (1.09±0.34; P = 0.001), body mass index (0.07±0.02; P = 0.001), visceral adipose tissue (0.08±0.04; P = 0.036), insulin (0.06±0.02; P = 0.011), sICAM-1 (0.04±0.02; P = 0.037), and sVCAM-1 (0.06±0.03; P = 0.045) were associated with CTCs. Over six months, significant decreases in CTCs were observed in the low-dose (-1.34±0.34; P<0.001) and high-dose (-1.18±0.40; P = 0.004) exercise groups, whereas no significant change was observed in the control group (-0.59±0.56; P = 0.292). Over six months, reductions in body mass index (-0.07±0.02; P = 0.007), insulin (-0.08±0.03; P = 0.014), and sICAM-1 (-0.07±0.03; P = 0.005) were associated with reductions in CTCs. The main limitations of this proof-of-concept study are the small sample size, heterogenous population, and per-protocol statistical analysis.

conclusionExercise may reduce CTCs among stage I-III colon cancer patients. Changes in host factors correlated with changes in CTCs. Exercise may have a direct effect on CTCs and indirect effects through alterations in host factors. This hypothesis-generating observation derived from a small pilot study warrants further investigation and replication.

Indexed as

AgedCell CountColonic NeoplasmsExercise TherapyFemaleHumansMaleMiddle AgedNeoplasm StagingNeoplastic Cells, CirculatingPatient CompliancePilot ProjectsPoisson DistributionRandom Allocation

Identifiers

PMID30332430
PMCPMC6192582

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.