Effectiveness of the Optifast Program Compared With a Reduced-energy Food Based Diet Plan on Body Weight
Public ClinicalTrials.gov record NCT02635698. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Opti-WIN: Effectiveness of the Optifast Program Compared With a Reduced-energy Food Based Diet Plan on Body Weight
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Compare percent change in loss of body weight between the OPTIFAST program and a food-based energy-deficit program
Study identification
- NCT ID
- NCT02635698
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 330 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 70 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 31, 2015
- Primary completion
- Sep 30, 2017
- Completion
- Sep 30, 2017
- Last update posted
- Nov 12, 2017
2015 – 2017
United States locations
- U.S. sites
- 9
- U.S. states
- 7
- U.S. cities
- 9
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Alaska Premier Health | Anchorage | Alaska | 99503 | — |
| Alexian Brothers Weight Loss Solutions | Schaumburg | Illinois | 60794 | — |
| University of Michigan Health System | Ann Arbor | Michigan | 48106 | — |
| Brody School of Medicine, East Carolina University | Greenville | North Carolina | 27834 | — |
| Wake Forest School of Medicine | Winston-Salem | North Carolina | 27401 | — |
| Neuro-Behavioral Clinical Research, Inc. | Canton | Ohio | 44718 | — |
| Central Ohio Nutrition Center, Inc. | Gahanna | Ohio | 43230 | — |
| Thomas Jefferson University | Philadelphia | Pennsylvania | 19107 | — |
| Houston Center for Clinical Research | Sugar Land | Texas | 77479 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT02635698, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Nov 12, 2017 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT02635698 live on ClinicalTrials.gov.