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COMPLETED NA

Study of an International Commercial Program on Weight Loss and Health Outcomes

NCT03571893 · View on ClinicalTrials.gov ↗

Study Summary

This study is a randomized controlled trial (RCT) of the Weight Watchers (WW) Freestyle ® (Flex® in UK) weight loss program compared to a control group following a do-it-yourself (DIY) approach for 12 months. Participants in the United States, Canada and the UK (n=360 total) will be randomly assigned to either participate in the commercially available WW program in their local community or to follow their own approach for weight loss. This study will examine the impact of the WW program on weight, fitness levels, quality of life, health behaviors and other health outcomes in overweight and obese adults after 3 and 12 months.

Interventions

  • BEHAVIORAL Weight Watchers Freestyle (Flex)
  • BEHAVIORAL DIY Personal Plan

Study Locations (4)

British Columbia

  • University of British Columbia-Okanagan — Kelowna
  • University of British Columbia-Vancouver — Vancouver

North Carolina

  • University of North Carolina at Chapel Hill — Chapel Hill

Other

  • University of Leeds — Leeds

Trial Details

FieldValue
Enrollment Target 373 participants
Start Date 2018-06-19
Est. Completion 2019-11-04
Phase NA

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Full Details on ClinicalTrials.gov ↗

What the Registry Record Tells You About NCT03571893

The ClinicalTrials.gov registry entry for NCT03571893 describes a study currently listed as completed. It is categorized as NA, which is the standard way researchers label where a study sits along the investigational pathway from early safety work through later efficacy and post-marketing evaluation. The registered enrollment target is 373 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is University of North Carolina, Chapel Hill, which has 725 total studies on file at ClinicalTrials.gov, and sponsors are the parties responsible for study design, oversight, and regulatory filings.

The record links to 4 conditions, with Obesity appearing as the primary indexed condition, and to 2 interventions — of which Weight Watchers Freestyle (Flex) is the first listed. Interventions can include drugs, devices, procedures, behavioral programs, or observational arms, and each is tracked as a separate registry field so that downstream queries can filter accurately. When a trial lists multiple interventions, it usually reflects a multi-arm design or a comparison protocol rather than a single treatment being tested in isolation. The brief summary published in the registry is the clearest source of protocol intent and should be read before drawing conclusions from any sidebar tags.

Geographic footprint matters for practical reasons: NCT03571893 reports 4 study locations spanning 3 distinct geographic areas — top geographies include British Columbia, North Carolina, Other. A larger site network tends to correlate with broader recruitment capacity, but it does not imply anything about study quality, and site-level enrollment status can diverge from the overall registry status shown above. Every data point on this page comes from the public ClinicalTrials.gov dataset and is reproduced here for reference only; it is not a medical recommendation, an endorsement of the sponsor, or an invitation to enroll. Verify current status, eligibility criteria, and contact details directly at ClinicalTrials.gov, and discuss any participation decision with your own healthcare provider.

Frequently Asked Questions

What is clinical trial NCT03571893 about?

NCT03571893 is a clinical study titled "Study of an International Commercial Program on Weight Loss and Health Outcomes". This study is a randomized controlled trial (RCT) of the Weight Watchers (WW) Freestyle ® (Flex® in UK) weight loss program compared to a control group following a do-it-yourself (DIY) approach for 12 months. Participants in the United States, Canada and the UK (n=360 total) will be randomly assigne...

What is the current status of trial NCT03571893?

This trial is currently completed. It is a NA study. The enrollment target is 373 participants. The study started on 2018-06-19. Estimated completion is 2019-11-04.

What conditions does trial NCT03571893 study?

This clinical trial studies the following conditions: Obesity, Weight Loss, Diet Modification, Weight Change, Body. These conditions were identified from the trial registry and reflect the primary focus areas of the research.

What interventions are being tested in trial NCT03571893?

The interventions under investigation include: Weight Watchers Freestyle (Flex) (BEHAVIORAL), DIY Personal Plan (BEHAVIORAL). Each intervention is being evaluated for safety and efficacy as part of this clinical study.

Who is sponsoring clinical trial NCT03571893?

This trial is sponsored by University of North Carolina, Chapel Hill, which has 725 total clinical trials registered on ClinicalTrials.gov. The sponsor is responsible for the study's design, funding, and regulatory compliance.

Where is trial NCT03571893 being conducted?

This trial has 4 study locations across North Carolina, British Columbia. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial