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Completed Not applicable Interventional Accepts healthy volunteers

Medifast 5 & 1 Plan

ClinicalTrials.gov ID: NCT01211301

Public ClinicalTrials.gov record NCT01211301. 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.

ClinicalTrials.gov public records Last synced Oct 29, 2026, 4:16 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Randomized Controlled Trial of the Medifast 5 & 1 Plan

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to compare the effectiveness of the Medifast 5 \& 1 Plan to a food-based, reduced-energy diet plan. The study will be conducted over 52 weeks, including a 26-week weight-loss phase and a 26-week weight-maintenance phase. 120 participants will be enrolled, with 60 randomized to the Medifast 5 \& 1 Plan and 60 randomized to food-based, reduced-energy diet plan. Multiple measures will be performed at baseline, 26 weeks, and 52 weeks, including anthropometry, body composition, blood pressure, blood assays, and appetite sensations.

Study identification

NCT ID
NCT01211301
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Enrollment
120 participants

Conditions and interventions

Eligibility (public fields only)

Age range
19 Years to 65 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 2010 (Type not available)
Primary completion
Feb 2012 (Actual)
Completion
Apr 2013 (Actual)
Last update posted
Jun 19, 2013

2010 – 2013

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1

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 NCT01211301, 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 Jun 19, 2013 · Synced Oct 29, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01211301 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →