Weight LossNCT02585193
Evaluation of a Commercial Program on Weight Loss and Health Outcomes
A study testing Weight Watchers Intervention in people with Weight Loss, run by University of Pittsburgh at 1 site in United States.
Trial summary
While some evidence on weight change elicited from commercially available weight loss programs, such as Weight Watchers, is available, there is little evidence evaluating any health-related outcomes that result from losing weight through these programs. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Weight Loss
- What is being tested?
- Weight Watchers Intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 150 participants
- Where
- 1 siteUnited States
- Study dates
- Aug 2015to Mar 2016
- Phase
- Interventional
- 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 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Male or female over age 18. Set "soft quotas" on the number of male and female participants - The desire is to have a 90% female / 10% male split.
- With or without previous Weight Watchers experience. Set quota on the number of participants with previous Weight Watchers experience at 65%.
- Self reported height/weight resulting in a Body Mass Index (BMI) of 27 to 43 kg/m2 (will re-screen at facility).
- Self report that he/she feels the need to lose weight.
- Willing to discontinue any current over-the-counter (OTC) supplements not recommended/prescribed by physician, with the exception of multivitamins or other vitamin supplement.
- Willing to follow recommendations required by study protocol.
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- Willing to include demographic information (e.g., ethnicity, income and education).
- Willing to participate in consumer surveys and focus groups as a part of the intervention.
- Use of a personal smartphone on a daily basis. For Android devices, must be version 4.4 (code: KitKat) or 5.0 (codename: Lollipop). For iPhones, must be iOS6 and above. Cannot accommodate Blackberry devices.
- The willingness and ability to navigate and use applications on their smartphone on a daily basis (minimum training will be provided).
- Reliable home WiFi access
- Ability to commit to attending up to 27 study visits in approximately 26 weeks:
- Ability to commit (to best of their ability) to attending weekly meetings, 30-60 minutes in duration, at the same day and time each week for 24 consecutive weeks (daytime and evening options will be available).
- Ability to commit to up to 3 additional study visits at Weeks 0, 12, and 24, each approximately 90 minutes in duration, to complete assessments (height, weight, questionnaires, physical measures).
Who cannot join
- Participants that are currently following a commercial weight-loss program.
- Participants that have been involved in a related market research program within the last 6 months.
- Pregnant or nursing, or planning on becoming pregnant over the next 9 months.
- Recent weight loss of ≥ 5 kg in the previous 3 months.
- History of clinically diagnosed eating disorder.
- Orthopedic limitations preventing participation in regular physical activity.
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- Untreated thyroid disease or > 1 change in dose or type of thyroid medication over previous 6 months.
- Taking any prescription medication with known effects on appetite or weight.
- With the exception of subjects on a stable dose of SSRIs (Selective Serotonin Re-uptake Inhibitors) for 6 months.
- Taking oral steroids.
- Chronic/inflammatory gastrointestinal disorders (irritable bowel syndrome acceptable).
- Previous surgical procedure for weight loss.
- Major surgery within the previous 3 months.
- History of heart problems (e.g., angina, bypass surgery, MI, etc) within previous 3 months.
- Presence of implanted cardiac defibrillator or pacemaker.
- Uncontrolled hypertension self-reported BP > 160/100mmHg)
- Diuretic use for hypertension over 1.5mg per day
- Diagnosis of type 1 or type 2 diabetes
- History of presence of cancer (completely respected basal or squamous cell carcinoma acceptable if treatment completed more than 6 months prior to enrollment).
- Consuming more than 14 alcoholic drinks per week or not more than 3 drinks per day.
- Planning to relocate in the next 9 months
- Any orthopedic limitation preventing participation in regular physical activity.
Trial locations and contacts
1 site in 1 country.
United States1 site
Physical Activity and Weight Management Research Center / University of Pittsburgh
Pittsburgh, Pennsylvania, 15261
About this study
While some evidence on weight change elicited from commercially available weight loss programs, such as Weight Watchers, is available, there is little evidence evaluating any health-related outcomes that result from losing weight through these programs. In addition, little data exists on the adherence and satisfaction of these types of programs. The purpose of this study is to evaluate body weight and health-related outcomes that are achieved from participating in a Weight Watchers program, along with program adherence and satisfaction. Men and women (N=150) that are participating in Weight Watchers weight loss program will undergo assessments at the University of Pittsburgh to evaluate outcomes related to the Weight Watchers 6 month intervention. Assessment visits, separate from the intervention, will take place at baseline (0 months), 3 months and 6 months for approximately 90 minutes at the Physical Activity and Weight Management Research Center. Participants will be asked to undergo assessments of body weight, height, aerobic stamina, functional fitness, flexibility, and complete a series of questionnaires related to demographics, program satisfaction, sleep quality, happiness, and food cravings. Adherence to the program will be measured by the number of group sessions attended.
Read the detailed description
There is a body of evidence that has evaluated the effect of Weight Watchers, a commercially available weight loss program, on changes in body weight. The current investigation aims to add to this body of evidence by providing additional data on changes in body weight and enhance the current evidence-base in regards to evaluating other health-related outcomes.
There is no evidence that demonstrates whether or not the weight loss as a result of the Weight Watchers program elicits changes in health-related outcomes related to aerobic capacity, flexibility, functional fitness, sleep, and other psychological measures. Additionally, within a scientific research protocol, measures of adherence and satisfaction have not been evaluated. This study will evaluate these outcomes beyond weight changes achieved across the 24-week program.
- Conditions
- Weight Loss
- Being tested
- Weight Watchers Intervention
- Medical subject headings
- Weight Loss
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Weight Watchers InterventionBehavioural
All participants are enrolled in this single arm of the study. All participants receive the Weight Watchers intervention which consists of weekly group intervention/support meetings in which weight loss behaviors (diet, physical activity) are discussed.
| Study group | Role | What they receive |
|---|---|---|
| Weight Watchers Intervention | Other | All participants are enrolled in this single arm of the study. All participants receive the Weight Watchers intervention which consists of weekly group intervention/support meetings in which weight loss behaviors (diet, physical activity) are discussed. Receives: Behavioral: Weight Watchers Intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Body Weight Change
To examine the effect of a 24-week commercially available weight loss program on weight change.
Measured: 6 months
Secondary outcomes (6)
Change in Sleep Quality and Duration
Sleep quality and duration. Participants will be asked to complete the Pittsburgh Sleep Quality Index (PSQI) at baseline, Months 3 and 6. The PSQI is a validated self-report measure of sleep duration and sleep quality.
Measured: 6 months
Change in Happiness
Participants will be asked to complete the Oxford Happiness Questionnaire at baseline, Months 3 and 6. The OHQ is a validated self-report measure for broad personal happiness. Respondents rate 29 sentences on a 6 point Likert scale (1, strongly disagree; 6, strong agree).
Measured: 6 months
Change in Food Cravings
The Food Craving Inventory-II (FCI-II) is a validated self-report measure for general cravings and cravings for specific types of foods and will be completed at baseline, Months 3 and 6. Respondents rate the frequency of cravings since the last time they completed the survey for each of 33 food items using a five-point Likert scale (1, never; 2, rarely; 3, sometimes; 4, often; 5, always/almost every day). The FCI-II consists of 5 scales (sweets, high fats, carbohydrates/starches, fast food fats, and fruits \& vegetables) that constitute the higher order construct of food cravings (the total score).
Measured: 6 months
Program Satisfaction
Program Satisfaction. Two parts to evaluate:
- Satisfaction Survey. Participants will be asked to complete a program Satisfaction Survey. The Satisfaction Survey is a self-administered survey scored on a 5-point Likert scale.
- Open-ended Satisfaction Survey. Participants will be asked to complete a Open-ended Satisfaction survey that consist of 2 open-ended questions, and asked respondents to report on their satisfaction with the dietary plan.
Measured: 6 months
Program Adherence
Data on adherence (attendance at meetings and use of the points system) will also be collected. Attendance data will be recorded by Weight Watchers staff at every meeting. These data will be confirmed by a member of the research staff that will be attending the weekly Weight Watchers meetings. In addition, the weekly weights obtained at the intervention sessions will be provided to the investigators by the intervention staff to allow for examination of the trajectory of weight loss.
Measured: 6 months
Change in Aerobic Capacity, Functional Fitness, Balance, Flexibility
Aerobic Capacity: Participants will complete a 6 minute walk test on a designated walking course. The 6 minute walk test is a measure of functional and aerobic capacity. Participants will asked to walk at a brisk, yet comfortable pace for a total of 6 minutes.
Functional Fitness and Balance: The Short Physical Performance Battery (SPPB) is a group of measures that combines the results of the gait speed, chair stand and balance tests to measure functional fitness.
Flexibility: Lower body flexibility will be assessed through the sit and reach test. The sit and reach is a common test to measure lower back and lower body flexibility. This will be collected 3 times with the best of 3 scores utilized.
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Oct 2015 (estimated)
- Study startAug 2015
- Primary completionMar 2016
- Study completionMar 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Weight LossStudies 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 N/A
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 150 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Pittsburgh
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Renee J. Rogers, University of Pittsburgh
- Investigators
- Renee J Rogers, PhD, Principal investigator, University of Pittsburgh
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02585193
- Sponsor's protocol ID
- PRO15040047
- Status last verified
- Aug 2017
- First submitted
- 12 Oct 2015
- Last updated
- 24 Aug 2017
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Aug 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of a Commercial Program on Weight Loss and Health Outcomes
- ClinicalTrials.gov ID
- NCT02585193
- Acronym / sponsor ID
- PRO15040047
- Conditions
- Weight Loss
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 150 participants (actual)
- Lead sponsor
- University of PittsburghUniversity, hospital or other
- Study start
- Aug 2015
- Primary completion
- Mar 2016 (actual)
- Study completion
- Mar 2016 (actual)
- First posted
- 23 Oct 2015 (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.
While some evidence on weight change elicited from commercially available weight loss programs, such as Weight Watchers, is available, there is little evidence evaluating any health-related outcomes that result from losing weight through these programs. In addition, little data exists on the adherence and satisfaction of these types of programs. The purpose of this study is to evaluate body weight and health-related outcomes that are achieved from participating in a Weight Watchers program, along with program adherence and satisfaction. Men and women (N=150) that are participating in Weight Watchers weight loss program will undergo assessments at the University of Pittsburgh to evaluate outcomes related to the Weight Watchers 6 month intervention. Assessment visits, separate from the intervention, will take place at baseline (0 months), 3 months and 6 months for approximately 90 minutes at the Physical Activity and Weight Management Research Center. Participants will be asked to undergo assessments of body weight, height, aerobic stamina, functional fitness, flexibility, and complete a series of questionnaires related to demographics, program satisfaction, sleep quality, happiness, and food cravings. Adherence to the program will be measured by the number of group sessions attended.
Detailed description
There is a body of evidence that has evaluated the effect of Weight Watchers, a commercially available weight loss program, on changes in body weight. The current investigation aims to add to this body of evidence by providing additional data on changes in body weight and enhance the current evidence-base in regards to evaluating other health-related outcomes.
There is no evidence that demonstrates whether or not the weight loss as a result of the Weight Watchers program elicits changes in health-related outcomes related to aerobic capacity, flexibility, functional fitness, sleep, and other psychological measures. Additionally, within a scientific research protocol, measures of adherence and satisfaction have not been evaluated. This study will evaluate these outcomes beyond weight changes achieved across the 24-week program.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Weight Watchers Intervention | Other | Behavioral: Weight Watchers InterventionAll participants are enrolled in this single arm of the study. All participants receive the Weight Watchers intervention which consists of weekly group intervention/support meetings in which weight loss behaviors (diet, physical activity) are discussed. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (14 listed)
- Male or female over age 18. Set "soft quotas" on the number of male and female participants - The desire is to have a 90% female / 10% male split.
- With or without previous Weight Watchers experience. Set quota on the number of participants with previous Weight Watchers experience at 65%.
- Self reported height/weight resulting in a Body Mass Index (BMI) of 27 to 43 kg/m2 (will re-screen at facility).
- Self report that he/she feels the need to lose weight.
- Willing to discontinue any current over-the-counter (OTC) supplements not recommended/prescribed by physician, with the exception of multivitamins or other vitamin supplement.
Key exclusion criteria (22 listed)
- Participants that are currently following a commercial weight-loss program.
- Participants that have been involved in a related market research program within the last 6 months.
- Pregnant or nursing, or planning on becoming pregnant over the next 9 months.
- Recent weight loss of ≥ 5 kg in the previous 3 months.
- History of clinically diagnosed eating disorder.
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 |
|---|---|---|
| Weight Watchers InterventionAll participants are enrolled in this single arm of the study. All participants receive the Weight Watchers intervention which consists of weekly group intervention/support meetings in which weight loss behaviors (diet, physical activity) are discussed. | Behavioural | Weight Watchers Intervention |
Primary outcome
Body Weight Change
Time frame: 6 months
To examine the effect of a 24-week commercially available weight loss program on weight change.
6 secondary outcomes
Change in Sleep Quality and Duration
Time frame: 6 months
Change in Happiness
Time frame: 6 months
Change in Food Cravings
Time frame: 6 months
Program Satisfaction
Time frame: 6 months
Program Adherence
Time frame: 6 months
Change in Aerobic Capacity, Functional Fitness, Balance, Flexibility
Time frame: 6 months
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 24 Aug 2017.
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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.
Renee J Rogers, PhD principal investigator
University of Pittsburgh
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Weight Watchers Intervention in people with 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 14 inclusion and 22 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 24 Aug 2017. 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.
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?
Body Weight Change (time frame: 6 months). 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 24 Aug 2017.