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Breast CancerPhase 3NCT00359060

Physical Activity and Breast Cancer Risk in Postmenopausal Women:the SHAPE Study

A Phase 3 study testing Physical activity in people with Breast Cancer, run by UMC Utrecht at 1 site in Netherlands.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Purpose of the SHAPE study is to examine the effects of an 1-year exercise programme on endogenous hormone levels associated with breast cancer among sedentary postmenopausal women and whether a decrease in intra-abdominal fat is associated with a lowering of these hormone levels. Read more about this study

Who is it for?
Ages 50 to 69 years, women onlyHealthy volunteers can take part
Conditions the study is for
Breast Cancer
What is being tested?
Physical activity
How many people
180 participants
Where
1 siteNetherlands
Study dates
Jan 2005to Sep 2006
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 69 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Women aged 50 -69 year
  • > 12 months since last menses
  • Non-smokers (at least 12 months)
  • Sedentary
  • Knowledge of the Dutch language
  • Agreement to be randomly assigned to either the exercise intervention or control group
  • Informed consent to participate in all screening and study activities

Who cannot join

  • Use of hormone replacement or oral contraceptives in past 6 months
  • Morbidly obese (BMI > 40)
  • BMI < 22
  • Currently on or planning to go on a strict diet
  • Ever diagnosed with breast cancer
  • Diagnosis of other types of cancer in the past 5 years
Show all 11Show fewer
  • Diabetes mellitus or other endocrine related diseases
  • Disorders or diseases (locomotor, optical, neurological, mental) that might impede the participation in the exercise programme
  • Alcohol or drug abuse
  • Maintenance use of corticosteroids
  • Use of beta blockers

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • University Medical Center Utrecht, Julius Center

    Utrecht, 3508 GA

Other trials in Netherlands

About this study

Official title: Physical Activity and Breast Cancer Risk in Postmenopausal Women: the SHAPE Study

Purpose of the SHAPE study is to examine the effects of an 1-year exercise programme on endogenous hormone levels associated with breast cancer among sedentary postmenopausal women and whether a decrease in intra-abdominal fat is associated with a lowering of these hormone levels.

Read the detailed description

Physical activity has been associated with a decreased risk for breast cancer. The biological mechanism(s) underlying the association between physical activity and breast cancer is not clear. Most prominent hypothesis is that physical activity may protect against breast cancer through reduced lifetime exposure to endogenous hormones. Another hypothesis is that physical activity prevents overweight and abdominal adiposity.

In this intervention study, 189 sedentary postmenopausal women who are aged 50-69 years are randomly allocated to an intervention or a control group. The intervention consists of an 1-year moderate-to-vigorous intensity aerobic and strength training exercise programme. Participants allocated to the control group are requested to retain their habitual exercise pattern. Primary study parameters measured at baseline, at four months and at 12 months are: serum concentrations of endogenous estrogens, endogenous androgens, sex hormone binding globulin and insulin. Other study parameters include: amount of total and abdominal fat, weight, BMI, body fat distribution, physical fitness, blood pressure and lifestyle factors.

This study will contribute to the body of evidence relating physical activity and breast cancer risk and will provide insight into possible mechanisms through which physical activity might be associated with reduced risk of breast cancer in postmenopausal women.

Conditions
Breast Cancer
Being tested
Physical activity
Keywords
Physical activity, Sex steroid hormones, Breast cancer risk, Intervention study, Postmenopausal women
Medical subject headings
Breast Neoplasms, Motor Activity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Serum concentrations of endogenous estrogens: estradiol (total, free), estrone, estrone sulfate

  2. Serum concentrations of endogenous androgens: testosterone, androstenedione

  3. Serum concentrations of sex hormone binding globulin

  4. Serum concentrations of fasting insulin

  5. Insulin sensitivity

Secondary outcomes (14)
  1. Amount of total body fat and intra-abdominal fat

  2. Weight

  3. Body Mass Index (BMI)

  4. Body fat distribution

  5. Waist to hip ratio

  6. Physical Fitness

  7. Blood pressure

  8. Lifestyle parameters (covariates)

  9. Exercise behaviour (habitual physical activity, past week activity, physical activity in the past)

  10. Diet (daily caloric intake; percent daily calories from fat, carbohydrates and proteins)

  11. Alcohol consumption

  12. Medication use

  13. Reproductive factors

  14. Medical history

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Aug 2006 (estimated)
  2. Study startJan 2005
  3. Study completionSep 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Enrolment
180 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00359060
Sponsor's protocol ID
UU 2003-2793
Status last verified
Jul 2006
First submitted
31 Jul 2006
Last updated
13 Oct 2006
Results posted
No

Publications

  • Monninkhof EM, Peeters PH, Schuit AJ. Design of the sex hormones and physical exercise (SHAPE) study. BMC Public Health. 2007 Sep 4;7:232. doi: 10.1186/1471-2458-7-232.

    PubMed 17767724

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Physical activity in people with Breast Cancer, run by UMC Utrecht at 1 site in Netherlands.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Oct 2006. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Serum concentrations of endogenous estrogens: estradiol (total, free), estrone, estrone sulfate. The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00359060, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Oct 2006.

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