Cancer Survivor, Central Obesity, Estrogen Receptor Positive, Postmenopausal, Progesterone Receptor Positive, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage I Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage III Breast Cancer, Stage IIIC Breast Cancer
Conditions
Brief summary
This randomized phase II trial studies how well exercise intervention works in targeting adiposity and inflammation with movement to improve prognosis in stage I-III breast cancer survivors. Different types of exercise may reduce inflammation in fat tissue and minimize the risk of cancer recurrence related to being overweight or obese.
Detailed description
PRIMARY OBJECTIVES: I. To determine the effects of a 4-month circuit, interval-based aerobic and resistance exercise (CARE) intervention on obesity-associated chronic inflammation. SECONDARY OBJECTIVES: I. To determine the effects of a 4-month CARE intervention on sarcopenic obesity. TERTIARY OBJECTIVES: I. To determine the effects of a 4-month CARE intervention on breast cancer prognosis and assess whether reductions in chronic inflammation are associated with breast cancer prognosis. OUTLINE: Patients are randomized to 1 of 3 groups. GROUP I: Patients undergo supervised CARE program over 50 minutes comprising of warm up over 5 minutes, moderate to vigorous aerobic and resistance exercises over 40 minutes, and cool down over 5 minutes 3 days per week for 16 weeks. GROUP II: Patients undergo supervised traditional aerobic and resistance exercise (TARE) program over 80 minutes comprising of warm up over 5 minutes, aerobic exercise over 15 minutes, resistance exercise over 55 minutes, and cool down over 5 minutes 3 days per week for 16 weeks. GROUP III: Patients undergo home-based stretching program comprising of one set of 3-4 static stretching exercises held for 30 seconds 3 days per week for 16 weeks. Patients receive instructional digital video disc (DVD) and booklet of the flexibility exercises. Patients also complete a weekly activity log. After completion of the stretching program, patients may optionally undergo the CARE program as in group I. After completion of study, patients are followed up at week 34, 8 and 12 months, and then every year for 8 years.
Interventions
BEHAVIORALExercise Intervention
Undergo supervised CARE program
OTHERInformational Intervention
Receive instructional DVD and booklet of the flexibility exercises
OTHERQuestionnaire Administration
Ancillary studies
OTHERLaboratory Biomarker Analysis
Correlative studies
OTHERQuality-of-Life Assessment
Ancillary studies
Sponsors
National Cancer Institute (NCI)
University of Southern California
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Postmenopausal (at time of diagnosis; including artificial menopause induced by previous hysterectomy) women newly diagnosed (stage I-III) breast cancer low grade disease positive for estrogen and progesterone receptors * Are centrally obese with the following criteria (determined by study team at eligibility screening): body mass index (BMI) \> 30 kg/m\^2 (calculated using height and weight; an upper limit BMI will not be set; we will rely on obtaining physicians' clearance to assess full eligibility) or body fat \> 30% (estimated by bioelectrical impedance), and waist circumference \> 35 inches (in) * Have undergone a lumpectomy or mastectomy * Have received and completed neoadjuvant or adjuvant chemotherapy and/or radiation therapy within the past 12 months * Speak English or Spanish * Is in breast cancer remission with no detectable disease present * Able to initiate a supervised exercise program (free from any cardiovascular, respiratory or musculoskeletal disease or joint problems that preclude moderate physical activity) * Free from history of chronic disease including uncontrolled diabetes, hypertension or thyroid disease * Have not experienced a weight reduction \>= 10% within past 6 months * Currently participate in less than 60 minutes of structured exercise/week * No planned reconstructive surgery with flap repair during trial and follow-up period * May use adjuvant endocrine therapy if use will be continued for duration of study intervention * Does not smoke (no smoking during previous 12 months) * Willing to travel to the exercise facility at University of Southern California (USC)
Exclusion criteria
* Patients with metastatic disease * Is not centrally obese * Has not completed surgery, chemotherapy, or radiation treatment associated with their diagnosis * History of any musculoskeletal, cardiorespiratory or neurological diseases that preclude the participation in exercise * Participates in more than 60 minutes of structured exercise/week * Is planning reconstructive surgery with flap repair during trial and follow-up period * Currently smokes * Is unable to travel to the exercise facility at USC
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Reduction of adipose tissue inflammation assessed by measuring M1 and M2 adipose tissue macrophages, crown-like structures, and adipose tissue secretion levels of inflammatory cytokines secreted | Up to 16 weeks | Analyses for each of the continuous outcomes will involve mixed effects linear regression models, to incorporate the repeatedly measured outcomes. Dependent variables will be the 2- and 4-month measurements of trial outcomes assessed during and at the end of the intervention period. Independent variables will include two indicator variables for treatment group (TARE, attention control) relative to CARE, the baseline value of the outcome, and an indicator variable for measurement time (2-month/4-month). The treatment group effect (2 degrees of freedom) will test for differences in TARE and/or attention control, relative to CARE on the 2- and 4-month outcomes. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Distant DFS defined as events that are either lethal (death from any cause) or a direct threat to patient survival (distant recurrence or second primary invasive cancer) | Up to 8 years | Kaplan-Meier estimates and log-rank tests will be used to estimate and initially test cumulative survival probabilities by treatment group. Cox proportional hazards models will be used to compare treatment groups (with 2 indicator variables for treatment group). |
| Overall survival | From randomization to death from any cause, assessed up to 8 years | Kaplan-Meier estimates and log-rank tests will be used to estimate and initially test cumulative survival probabilities by treatment group. Cox proportional hazards models will be used to compare treatment groups (with 2 indicator variables for treatment group). |
| Recurrence-free interval defined as events directly attributable to the original breast cancer including invasive ipsilateral breast tumor recurrence; local, regional or distant recurrence; and death from breast cancer | Up to 8 years | A competing risks analysis will be conducted, with death modeled as a competing event, using the Fine-Gray proportional hazards model. Analyses will be presented unadjusted, as well as adjusted for prognostic variables (age, estrogen receptor (ER)/HER2 status, tumor size, presence/number of positive nodes, and surgery (mastectomy vs. breast-sparing). |
| Sarcopenic obesity assessed using dual energy X-ray absorptiometry | Up to 8 months | Analyses for each of the continuous outcomes will involve mixed effects linear regression models, to incorporate the repeatedly measured outcomes. Dependent variables will be the 2- and 4-month measurements of trial outcomes assessed during and at the end of the intervention period. Independent variables will include two indicator variables for treatment group (TARE, attention control) relative to CARE, the baseline value of the outcome, and an indicator variable for measurement time (2-month/4-month). The treatment group effect (2 degrees of freedom) will test for differences in TARE and/or attention control, relative to CARE on the 2- and 4-month outcomes. |
Other
| Measure | Time frame | Description |
|---|---|---|
| Disease free survival (DFS) | From randomization to documentation of disease recurrence or death from any cause, assessed up to 8 years | Kaplan-Meier estimates and log-rank tests will be used to estimate and initially test cumulative survival probabilities by treatment group. Cox proportional hazards models will be used to compare treatment groups (with 2 indicator variables for treatment group). Ancillary analyses will assess associations of inflammation measures with DFS. Results will be presented as hazard ratios, with 95% confidence intervals. Unadjusted and adjusted survival curves will be presented by treatment group. |
Countries
United States
Outcome results
None listed