ObesityPhase 1/2NCT00177762
Dose-Response of Exercise on Long-Term Weight Loss
A Phase 1/2 study testing behavior weight loss in people with Obesity and Weight Loss, run by University of Pittsburgh at 1 site in United States.
Trial summary
The purpose is to examine varying durations and intensities of exercise on long-term weight loss. Read more about this study
- Who is it for?
- Ages 21 to 45 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Obesity, Weight Loss
- What is being tested?
- behavior weight loss
- Type of treatment
- Lifestyle or therapy programme
- How many people
- 200 participants
- Where
- 1 siteUnited States
- Study dates
- Sep 1999to Dec 2002
- Phase
- Phase 1/2
- 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 21 to 45 years
- Women only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Female
- 21-45 years of age
- BMI = 27-40 kg/m2
- Ability to provide informed consent.
- Ability to provide consent from their personal physician to participate in this study.
Who cannot join
- Reporting regular exercise participation of at least 20 minutes per day on at least 3 days per week during the previous six months. (This study is designed to recruit relatively sedentary adults.)
- Diabetes, hypothyroidism, or other medical conditions which would affect energy metabolism.
- Currently pregnant, pregnant within the previous six months, or planning on becoming pregnant within the next 24 months. (Pregnancy will be based on self-report and will be included on the detailed medical history that is completed by subjects.)
- Non-medicated resting systolic blood pressure >160 mmHg or non-medicated resting diastolic blood pressure >100 mmHg, or taking medication that would affect blood pressure.
- Taking medication that would affect resting heart rate or the heart rate response during exercise (e.g., beta blockade).
- Arrhythmia on resting or exercise electrocardiogram that would indicate that vigorous exercise was contraindicated.
- History of myocardial infarction or valvular disease.
- History of orthopedic complications that would prevent optimal participation in the exercise component (e.g., heel spurs, severe arthritis).
Trial locations and contacts
1 site in 1 country.
United States1 site
University of Pittsburgh
Pittsburgh, Pennsylvania, 15203
About this study
The purpose is to examine varying durations and intensities of exercise on long-term weight loss.
- Conditions
- Obesity, Weight Loss
- Being tested
- behavior weight loss
- Medical subject headings
- Obesity, Weight Loss
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
behavior weight lossBehavioural
What is being measured
The primary outcome is the main question the study is designed to answer.
weight loss
Secondary outcomes (5)
fitness
dietary intake
physical activity
mediators
body composition
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Sep 2005 (estimated)
- Study startSep 1999
- Study completionDec 2002
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for ObesityStudies of the same condition, open and under way.
- More trials run by University of PittsburghThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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 1/2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 200 participants
Sponsor and investigators
- Lead sponsor
- University of Pittsburgh
- Sponsor type
- University, hospital or other
- Collaborators
- National Institutes of Health (NIH)
- Investigators
- John M Jakicic, Ph.D., Principal investigator, University of Pittsbugh
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00177762
- Sponsor's protocol ID
- R01HL064991
- Status last verified
- Sep 2005
- First submitted
- 13 Sep 2005
- Last updated
- 15 Sep 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 15 Sep 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Dose-Response of Exercise on Long-Term Weight Loss
- ClinicalTrials.gov ID
- NCT00177762
- Acronym / sponsor ID
- R01HL064991
- Conditions
- Obesity, Weight Loss
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 200 participants
- Lead sponsor
- University of PittsburghUniversity, hospital or other
- Collaborators
- National Institutes of Health (NIH)
- Study start
- Sep 1999
- Study completion
- Dec 2002
- First posted
- 15 Sep 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose is to examine varying durations and intensities of exercise on long-term weight loss.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Single group
- Masking
- None (open label)
Who may qualify
- Ages
- 21 to 45 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- Female
- 21-45 years of age
- BMI = 27-40 kg/m2
- Ability to provide informed consent.
- Ability to provide consent from their personal physician to participate in this study.
Key exclusion criteria (8 listed)
- Reporting regular exercise participation of at least 20 minutes per day on at least 3 days per week during the previous six months. (This study is designed to recruit relatively sedentary adults.)
- Diabetes, hypothyroidism, or other medical conditions which would affect energy metabolism.
- Currently pregnant, pregnant within the previous six months, or planning on becoming pregnant within the next 24 months. (Pregnancy will be based on self-report and will be included on the detailed medical history that is completed by subjects.)
- Non-medicated resting systolic blood pressure >160 mmHg or non-medicated resting diastolic blood pressure >100 mmHg, or taking medication that would affect blood pressure.
- Taking medication that would affect resting heart rate or the heart rate response during exercise (e.g., beta blockade).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| behavior weight loss | Behavioural | – |
Primary outcome
weight loss
5 secondary outcomes
fitness
dietary intake
physical activity
mediators
body composition
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 15 Sep 2005.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
John M Jakicic, Ph.D. principal investigator
University of Pittsbugh
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing behavior weight loss in people with Obesity and Weight Loss, run by University of Pittsburgh at 1 site in United States.
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 5 inclusion and 8 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 15 Sep 2005. 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 United States. 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 combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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?
weight loss. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 15 Sep 2005.