ecrin-mdr-crcClinical2020IPD Sharing (as of September 2023): Yes Description: Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.Stage II Breast CancerStage I Prostate CancerColorectal CancerStage II Colorectal CancerStage I Breast CancerBreast NeoplasmsBreast CancerStage I Colorectal CancerStage III Prostate CancerStage III Colorectal CancerProstatic NeoplasmsColorectal NeoplasmsProstate CancerStage II Prostate CancerStage III Breast CancerStage Ii Prostate CancerStage I Prostate CancerStage Iii Prostate CancerColorectal CancerStage Iii Colorectal CancerStage I Breast CancerBreast NeoplasmsBreast CancerStage I Colorectal CancerStage Ii Colorectal CancerProstatic NeoplasmsStage Iii Breast CancerStage Ii Breast CancerColorectal NeoplasmsProstate CancerInterventionalhttps://newmdr.ecrin.org/Study/2354679United States10CtDNAExerciseMemorial Sloan Kettering Cancer Center20-378ECRIN MDRRecruitingfalseResearching the Effect of Exercise on CancerResearchers think that exercise may be able to prevent cancer from coming back by lowering ctDNA levels. The purpose of this study is to explore how aerobic exercise (exercise that stimulates and strengthens the heart and lungs and improves the body’s use of oxygen) can reduce the level of ctDNA found in the blood. During the study, the highest level of exercise that is practical, is safe, and has positive effects on the body that may prevent the return of cancer (including a decrease in ctDNA levels) will be found. Each level of exercise tested will be a certain number of minutes each week. Once the best level of exercise is found, it will be tested further in a new group of participants. All participants in this study will have been previously treated for breast, prostate, or colorectal cancer.2020-10-152354679NCT04589468