Recruiting

Exercise

Sponsor:

City of Hope Medical Center

Code:

NCT04589468

Conditions

Breast Cancer

Prostate Cancer

Colorectal Cancer

Stage I Breast Cancer

Stage II Breast Cancer

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Exercise

Study Details

Brief summary:

Researchers 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.

Conditions

Breast Cancer

Prostate Cancer

Colorectal Cancer

Stage I Breast Cancer

Stage II Breast Cancer

Study ID

NCT04589468

Start date

Oct 30, 2026

Status verified date

Aug, 2026

Completion date

Feb 13, 2028

Anticipated

Primary completion date

Feb 13, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Postsurgical diagnosis of patients with primary solid tumors at high-risk of relapse as defined by one of the following:

° High-risk primary solid tumor (e.g., colorectal, ovarian, non-small cell lung cancer) (colorectal cancer only for Phase 1a)
  • Stage 3 or
  • ctDNA positive

° High-risk breast cancer
  • Residual invasive disease in the breast or the lymph nodes following completion of neoadjuvant chemotherapy (NACT),
  • Estrogen receptor (ER), and/or progesterone receptor (PR) positive and HER2 negative,
  • CPS-EG score ≥ 3,
  • CPS-EG score ≥2 w ith ypN+, or
  • Recurrence score ≥ 25
  • No evidence of disease
  • Age ≥ 18
  • Interval of ≥ 1 month but ≤ 2 years following completion of all definitive adjuvant therapy
  • Non-exercising (i.e., < 30 minutes of moderate and < 20 mins of vigorous exercise/wk), as assessed by remote activity and heart rate tracking for a 7-day period prior to study entry)

° If ≥ 30 minutes but less than 45 minutes of moderate exercise/week, or if ≥ 20 minutes but less than 30 minutes of vigorous exercise/week, patients may be eligible, at the discretion of the PI.
  • Cleared for exercise participation as per screening clearance via PAR-Q+
  • Willingness to comply with all study-related procedures

Exclusion Criteria:

  • Enrollment onto any other interventional investigational study except interventions determined by the PI not to confound study outcomes
  • Any other current diagnosis of invasive cancer of any kind
  • Distant metastatic malignancy of any kind
  • Any other condition or intercurrent illness that, in the opinion of the investigator, makes the subject a poor candidate for study participation

Study Design

Enrollment

51 participants

Anticipated

Allocation

Non randomized

Intervention Model

Sequential

Primary purpose

Prevention

Interventions and Outcome Measures

Arms

experimental: Dose-Finding/Escalation

Fifty (n=50) post-treatment patients with colorectal cancer or breast cancer, deemed high-risk of relapse. The study will use an adaptive continuous reassessment method (CRM) design to assign patients sequentially at trial entry to one of five escalated doses depending on the feasibility / tolerability of exercise therapy evaluated over the total treatment period. The primary objective of this phase 1a trial is to identify the RP2D of exercise therapy for further evaluation in the phase 1b trial.

experimental: Dose Expansion

An independent cohort of 30 post-treatment patients with colorectal (n=15) or breast (n=15) cancer deemed high-risk of relapse. This cohort expansion trial will only evaluate the RP2D identified in the phase 1a trial. The primary objective of this phase 1b trial is to further evaluate the feasibility, safety, and biological activity of the RP2D.

Interventions

Exercise

Exercise therapy in both phases will consist of individualized walking delivered 3 to 6 times weekly (over a 7-day period). Exercise treatment will be delivered for up to 18 months, or until progression of disease or withdrawal of consent, whichever comes first. The phase 1a trial will assess five doses of exercise therapy (i.e., 90, 150, 225, 300, and 375 mins/wk) delivered following a non-linear (i.e., exercise dose is continually altered and progressed in conjunction with appropriate rest/recovery sessions across the entire intervention period) dosing schedule. The phase 1b trial will only test one dose of exercise therapy - the RP2D identified in the phase 1a trial.

Primary outcome measure

  • Identify the recommended phase 2 dose (RP2D) of exercise for testing in the phase 1b. [ Time Frame: 24 weeks ]

Central Contacts and Locations

Central contacts

Lee Jones, MD

6262184673leejones@coh.org

Locations

City of Hope Medical Center

Recruiting

Durate, California, United States, 91010

Contacts

Lee Jones, MD

6262184673leejones@coh.org

Principal Investigator:

Lee Jones, MD

More Information

Sponsor

City of Hope Medical Center

Last update posted

Aug 27, 2026

Last verified

Aug, 2026

Keywords

  • Breast Cancer
  • Prostate Cancer
  • Colorectal Cancer
  • exercise
  • ctDNA
  • 20-378
  • Memorial Sloan Kettering Cancer Center

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by City of Hope Medical Center on 2026-08-27.