Comparing resistance and aerobic exercise in breast cancer patients undergoing treatment

Effects of Resistance vs. Aerobic Training on Ki-67 and Other Health-Related Biomarkers: The NEO-Program, a Randomized Controlled Trial on Breast Cancer Patients Undergoing Neoadjuvant Treatment

Not applicable Interventional Fundacao Champalimaud · NCT05297773

This study is testing whether resistance training or aerobic exercise can help breast cancer patients undergoing treatment feel better and improve their health compared to a relaxation group.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment132 (estimated)
Ages18 Years and up
SexFemale
SponsorFundacao Champalimaud Academic / other
Drugs / interventionschemotherapy
Locations2 sites (Lisbon, Cruz-Quebrada and 1 other locations)
Trial IDNCT05297773 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the effects of two different exercise protocols, resistance training and aerobic training, on breast cancer patients receiving neoadjuvant treatment. Participants will be randomly assigned to one of the exercise groups or a relaxation control group, with the primary outcome being changes in Ki-67%, a marker of tumor proliferation. Secondary outcomes will include assessments of body composition, physical fitness, quality of life, and various biological markers related to tumor characteristics. The study seeks to fill gaps in current knowledge regarding the impact of exercise during the neoadjuvant period, which has been under-researched compared to post-surgery interventions.

Who should consider this trial

Good fit: Ideal candidates are women aged 18 and older with histologically confirmed breast cancer (stage 0-III) who are scheduled for neoadjuvant treatment and have not engaged in structured exercise in the past six months.

Not a fit: Patients with a history of other cancers in the past five years, uncontrolled heart disease, diabetes, severe psychological disorders, or other medical conditions that prevent exercise may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the quality of life and treatment outcomes for breast cancer patients through tailored exercise interventions.

How similar studies have performed: While some pilot studies have suggested feasibility and potential benefits of exercise during neoadjuvant therapy, this approach remains relatively novel and underexplored in human subjects.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically breast cancer (stage 0-III); scheduled for neoadjuvant treatment (cohort A - chemotherapy; cohort B - endocrine therapy)
* Women aged ≥ 18 years; nonpregnant
* Do not be involved in any structured exercise program in the past 6 months
* Medical approval to participate in the study
* Willingness to attend exercise sessions

Exclusion Criteria:

* Treated for any cancer in the past 5 years (except basal cancer)
* Uncontrolled heart disease (heart failure, uncontrolled coronary heart disease, and uncontrolled hypertension, cardiac disease)
* Diabetes mellitus
* Lung condition (chronic obstructive or restrictive pulmonary disease)
* Psychological disorders (dementia, Alzheimer, and Parkinson Disease)
* Severe disability, or other medical condition that prevents from exercise training
* Alcohol or drugs abuse

Where this trial is running

Lisbon, Cruz-Quebrada and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Breast CancerExerciseQuality of lifeNeoadjuvant treatmentTumor biologyPhysical fitnessSleep quality
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.