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Completed

NCT Number: NCT04091516

Feasibility & Implementation of a Plant-Based Weight-Loss Program in an Office-Based Setting

This prospective study aims to assess the feasibility and implementation of a plant-based, weight-loss program in an office setting. The study will also assess changes in body weight, blood pressure, plasma lipids, glycated hemoglobin, and body composition with a 12-week, plant-based, weight-loss program. These health benefits may illustrate feasibility to physicians and healthcare professionals elsewhere.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Barnard Medical Center

Washington D.C., District of Columbia, 20016, United States

About this study

This will be a prospective interventional study to evaluate the feasibility, implementation and efficacy of 12-week plant-based, weight-loss program that is carried out in an office setting and is open to participation to the general public via local print and online advertising or whichever methods apply. The program will include weekly education and support, and assessment of blood pressure, lipids, hemoglobin A1c, and body composition before and after starting the program. The price of the program, $645, will cover the costs of weekly education, blood pressure check, laboratory testing and body composition analysis.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Men and women age ≥18 years of age

Exclusion criteria

  • Use of recreational drugs in the past 6 months
  • Pregnancy or intention to become pregnant during the study period, as verified by self-report
  • Unstable medical or psychiatric illness
  • Lack of English fluency
  • Inability to maintain current medication regimen
  • Inability or unwillingness to participate in all components of the study

Treatment and study plan

Low-fat plant-based diet

Behavioral

Participants will follow a diet that consists of whole grains, vegetables, legumes, and fruits, with no restriction on energy intake. Animal products and added oils will be excluded. Except for light refreshments and tastings at the group sessions, no meals will be provided. Participants will handle their own food preparation and purchases, with guidance from the education team, with no restriction on energy intake.

Primary outcomes

  1. Weight loss

    Time frame: Change from baseline to 12 weeks

    With participants wearing light, indoor clothing but without shoes, body weight will be measured to the nearest 0.1 kg, using a digital scale. Body weight will also be assessed at each weekly session, but only data from the week 1 (pre-program) and week 12 (post-program) will be included in the analysis.

Secondary outcomes

  1. Blood pressure

    Time frame: Change from baseline to 12 weeks

    Blood pressure will be measured using an automated oscillometric device.

  2. Plasma cholesterol and triacylglycerol concentrations

    Time frame: Change from baseline to 12 weeks

    Will be measured using standard methods.

  3. hemoglobin A1c

    Time frame: Change from baseline to 12 weeks

    will be measured using standard methods.

  4. Body Composition

    Time frame: Change from baseline to 12 weeks

    Body composition will be measured by dual energy x-ray absorptometry (Lunar iDXA, GE Healthcare; Madison, WI) with Encore® 2005 v.9.15.010 software. The iDXA can measure body composition with low x-ray exposure and short scanning time. The iDXA unit will be calibrated daily using the GE Lunar calibration phantom, and a trained operator will perform all scans following standard protocol for participant positioning. The iDXA is equipped with the CoreScan module (GE Healthcare, Madison, WI), which can also provide an estimate of visceral adipose tissue volume and mass.

Sponsors and collaborators

Lead sponsor

Physicians Committee for Responsible Medicine

Other

Registry information

Official study title

The Feasibility, Implementation and Efficacy of a Plant-Based Weight-Loss Program in a Practice-Based Setting

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
Sep 16, 2019
Registry last updated
Sep 17, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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