Prehabilitation With Resistance-exercise Training for Breast Cancer Neoadjuvant Therapy

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

68 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-01-01

Study Completion Date

2026-12-31

Brief Summary

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Breast cancer stands as the foremost cause of cancer-related deaths among women worldwide, with the highest incidence of any cancer type. The choice of therapeutic interventions hinges upon factors like cancer stage, cell subtype, and tumor size. Consequently, individuals with more aggressive tumors, such as HER+2 and Triple Negative, or larger tumors often undergo neoadjuvant chemotherapy before breast surgery. However, these anticancer treatments come with side effects like cancer-related fatigue, reduced functional capacity, and changes in body composition, notably skeletal muscle atrophy. Skeletal muscle loss correlates with heightened mortality rates, cardiotoxicity, and diminished quality of life, underscoring the need for early therapeutic interventions. One such promising strategy is prehabilitation, which involves resistance-exercise training aimed at bolstering skeletal muscle mass from the outset of the disease, even preceding breast surgery. Resistance-exercise training has shown favorable effects on women undergoing adjuvant therapy or survivors of breast cancer, however, its molecular and clinical effects in women with breast cancer undergoing neoadjuvant therapy are unknown.

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Detailed Description

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Hypothesis: Prehabilitation based on resistance-exercise training before surgery in women with breast cancer undergoing neoadjuvant therapy increases skeletal muscle mass compared with usual care.

Secondary, prehabilitation based on resistance-exercise training before surgery in women with breast cancer undergoing neoadjuvant therapy generates better results in body composition, physical performance, clinical parameters (serious adverse events, hospital readmission, infection, complications), physiological parameters and quality of life at one-month hospital discharge compared to usual care.

Objective: To determine the effects of prehabilitation based on resistance-exercise training versus usual care, before and after breast surgery, on skeletal muscle mass in women with breast cancer undergoing neoadjuvant chemotherapy.

Methodology: A single-blind, randomized controlled clinical trial will be developed. Sixty-eight postmenopausal women with stage I, II and III breast cancer with HER2+ type breast tumor and Triple negative breast cancer undergoing neoadjuvant therapy and with an indication for breast surgery will be divided into two groups: usual care (CONTROL, n=34) versus Prehabilitation (P-REHAB, n=34). All participants will receive an education session 20 weeks before surgery + neoadjuvant chemotherapy for 16-20 weeks as is normally done for this type of patien. Only participants in the P-REHAB group will undergo 16-20 weeks of whole-body resistance-exercise training (twice a week). At baseline, after prehabilitation program and 4 weeks after surgery, the cross-sectional area of the quadriceps muscle and of the muscle region at lumbar level 3 will be determined by CT-Scan. Also, fasting blood samples will be obtained to measure biochemical and molecular markers (e.g. miRNAs). Maximal strength will be determined by 1 repetition maximum (1RM) leg press, leg extension, lat pull down, chest press, horizontal row, and handgrip. In addition, physical performance will be assessed with the short physical performance battery (SPPB), functional capacity with the 6-minute walk test, quality of life with the BR23 questionnaire, and cancer-related fatigue with the Brief Fatigue Inventory scale at the same time points. Finally, samples from tumor breast cancer and pectoralis muscle will be obtained on the day of breast surgery.

Expected results: It is expected that prehabilitation based on resistance-exercise training results in increased muscle mass in women with breast cancer undergoing neoadjuvant chemotherapy compared to participants receiving usual care. Also, it is expected that this intervention before surgery in women with breast cancer undergoing neoadjuvant therapy will generate better results in clinical parameters (serious adverse events, hospital readmission, infection, complications) and quality of life one month after hospital discharge compared to usual care . These results will allow the creation of local, regional, national and international strategies to combat the adverse effects of breast cancer and its antineoplastic treatment, especially in women with more aggressive breast cancer.

Conditions

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Prehabilitation Breast Cancer Postmenopause Resistance Training

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Prehabilitation intervention program

All volunteers be subjected to 16 - 20 weeks of full body resistance exercise training (2 times per week. However, usual care program.

Group Type EXPERIMENTAL

Prehabilitation with resistance-exercise training

Intervention Type OTHER

The volunteers in the intervention group will be subjected to 16 - 20 weeks of whole-body resistance-type exercise training (2x/wk).

Usual Care Program

All volunteers be subjected usual care (diagnosis confirmation, chemotherapy treatment planning and an initial education session).

Group Type ACTIVE_COMPARATOR

Usual care program

Intervention Type OTHER

The volunteers in the intervention group will be subjected to usual care (diagnosis confirmation, chemotherapy treatment planning and an initial education session).

Interventions

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Prehabilitation with resistance-exercise training

The volunteers in the intervention group will be subjected to 16 - 20 weeks of whole-body resistance-type exercise training (2x/wk).

Intervention Type OTHER

Usual care program

The volunteers in the intervention group will be subjected to usual care (diagnosis confirmation, chemotherapy treatment planning and an initial education session).

Intervention Type OTHER

Other Intervention Names

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Prolonged resistance-type exercise training Prehabilitation Standard therapy

Eligibility Criteria

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Inclusion Criteria

* Postmenopausal women with breast cancer in stages I, II and III with luminal breast tumor, HER2+ or TNBC
* Indication for neoadjuvant chemotherapy
* Candidates for curative breast surgery
* Body mass index: 18.5 \<BMI \<30 kg/m2
* Sedentary (does not perform scheduled or planned physical activity ≥ 2 times a week)
* Willingness to participate in the study and follow the proposed prehabilitation scheme.

Exclusion Criteria

* Present comorbidities that interact with the metabolism and mobility of the muscles of the body and that do not allow the (safe) performance of strength exercises (e.g., debilitating arthritis, all neurological disorders, paralysis, among others).
* Severe or uncontrolled cardiovascular disease, cardiac ejection fraction less than 50%
* Previous antineoplastic treatment
* Use of nutritional supplements (leucine, glutamine, casein, whey protein, fatty acids and creatine).

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes