Reducing Breast Cancer Risk Through Modifying Body Composition and Decreasing Inflammation in Normal Weight Women
Trial Snapshot
- Phase
- Not Applicable
- Status
- Active, not recruiting
- Sponsor
- M.D. Anderson Cancer Center
- Enrollment
- 40
- Locations
- 1
- Primary Endpoint
- Evaluate the feasibility of a diet intervention to decrease body fat in postmenopausal women with normal BMI but high body. fat.
Study Overview
Brief Summary
This trial studies how well a lifestyle intervention works in reducing breast cancer risk through changing body composition and decreasing inflammation in normal weight women. This trial may help researchers learn more about diet and exercise programs designed to decrease body fat in postmenopausal women who are of normal weight but have an elevated risk of breast cancer because of excess body fat.
Detailed Description
PRIMARY OBJECTIVE:
I. Evaluate the feasibility of a diet and exercise intervention to decrease body fat in postmenopausal women with normal body mass index (BMI) but high body fat (trunk fat mass 9.4 kg, the 50th percentile of normal BMI women in the Women's Health Initiative [WHI]).
SECONDARY OBJECTIVE:
I. Assess preliminary efficacy of the intervention by evaluating the post-intervention differences between the intervention and control groups in:
IIa. Circulating markers of inflammation and metabolic dysfunction linked to both excess adiposity and breast cancer (high sensitivity C-reactive protein [hsCRP], fasting insulin, leptin, IL-6, triglycerides, sex hormone binding globulin [SHBG], adiponectin, and high density lipoprotein [HDL] cholesterol).
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Prevention
- Masking
- None
Eligibility Criteria
- Ages
- 50 Years to 69 Years (Adult, Older Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Age 50-69 years old
- •Postmenopausal woman (absence of menstruation for at least one year, or history of bilateral oophorectomy)
- •Self-reported height and weight indicating a BMI >= 18.5 and < 25 kg/m^2
- •No contraindications to exercise (either no positive responses on the Physical Activity Readiness Questionnaire, or clearance from a health care provider certifying that the participant is healthy enough to exercise)
- •No history of invasive cancer, other than non-melanoma skin cancer
- •No history of renal disease
- •Able to walk without an assistive device
- •Not within 3 months of major surgery
- •Able to speak/read/write in English
- •Has internet access on a computer or mobile device
- •A trunk fat mass >= 9.4 kg as indicated by a dual x-ray absorptiometry (DXA) scan
- •Height and weight indicating a BMI of >= 18.5 and < 25 kg/m^2 verified at the screening visit
Exclusion Criteria
- •MD Anderson employees that report to the principal investigator of this study
- •Participants that cannot engage in the exercise program for more than three weeks during the study period
- •Participants that are currently doing strength exercises that work all major muscle groups (defined as: participants who complete more than 16 repetitions per exercise in their current resistance training regimen, or who don't find their last 1-2 reps to be difficult in their current regimen, or who increase the weight in their current routine).
Arms & Interventions
Group II (wait-list, lifestyle intervention)
Participants are placed on a wait-list and then complete lifestyle intervention after 4 months.
Intervention: Aerobic Exercise (Other)
Group II (wait-list, lifestyle intervention)
Participants are placed on a wait-list and then complete lifestyle intervention after 4 months.
Intervention: Dietary Intervention (Other)
Group II (wait-list, lifestyle intervention)
Participants are placed on a wait-list and then complete lifestyle intervention after 4 months.
Intervention: Quality-of-Life Assessment (Other)
Group II (wait-list, lifestyle intervention)
Participants are placed on a wait-list and then complete lifestyle intervention after 4 months.
Intervention: Questionnaire Administration (Other)
Group II (wait-list, lifestyle intervention)
Participants are placed on a wait-list and then complete lifestyle intervention after 4 months.
Intervention: Resistance Training (Other)
Group I (lifestyle intervention)
Participants complete lifestyle intervention consisting of 1-3 sets of high-resistance circuit training sessions per week, up to 150 minutes of aerobic training per week, and diet recommendations from a health coach or registered dietitian twice per week for 16 weeks.
Intervention: Aerobic Exercise (Other)
Group I (lifestyle intervention)
Participants complete lifestyle intervention consisting of 1-3 sets of high-resistance circuit training sessions per week, up to 150 minutes of aerobic training per week, and diet recommendations from a health coach or registered dietitian twice per week for 16 weeks.
Intervention: Dietary Intervention (Other)
Group I (lifestyle intervention)
Participants complete lifestyle intervention consisting of 1-3 sets of high-resistance circuit training sessions per week, up to 150 minutes of aerobic training per week, and diet recommendations from a health coach or registered dietitian twice per week for 16 weeks.
Intervention: Quality-of-Life Assessment (Other)
Group I (lifestyle intervention)
Participants complete lifestyle intervention consisting of 1-3 sets of high-resistance circuit training sessions per week, up to 150 minutes of aerobic training per week, and diet recommendations from a health coach or registered dietitian twice per week for 16 weeks.
Intervention: Questionnaire Administration (Other)
Group I (lifestyle intervention)
Participants complete lifestyle intervention consisting of 1-3 sets of high-resistance circuit training sessions per week, up to 150 minutes of aerobic training per week, and diet recommendations from a health coach or registered dietitian twice per week for 16 weeks.
Intervention: Resistance Training (Other)
Outcomes
Primary Outcomes
Evaluate the feasibility of a diet intervention to decrease body fat in postmenopausal women with normal BMI but high body. fat.
Time Frame: up to 16 weeks
Will assessed by the calculated rates, frequencies, and 95% confidence intervals (CIs) for these measures
Evaluate the exercise intervention to decrease body fat in postmenopausal women with normal BMI but high body. fat.
Time Frame: up to 16 weeks
Will assessed by the calculated rates, frequencies, and 95% confidence intervals (CIs) for these measures
Eligibility Rate
Time Frame: 4 months
Eligibility rate will be calculated as the number of eligible women identified divided by the total number completing a DXA scan. Criteria for feasibility will be defined as an eligibility rate of ≥ 40%
Secondary Outcomes
- Intervention Adherence(4 months)
- Retention Rate(8 months)
