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OpenTrials
Completed

NCT Number: NCT03435445

Online Platform for Healthy Weight Loss (POEmaS)

Clinical trial to test the efficacy of an online platform based on behavior change principles in promoting weight loss among overweight and obese students and employees of the Federal University of Minas Gerais. The hypothesis is that participants of the group which use the platform with or without a dietitian coaching will lose more weight than those allocated to the group who receives dietary and physical activity orientations by educational videos only.

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Key information

Conditions

Obesity Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Federal University of Minas Gerais

Belo Horizonte, Minas Gerais, 30130000, Brazil

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Body mass index >=25 kg/m2
  • intention to lose weight by healthy lifestyle habits
  • internet access

Exclusion criteria

  • pregnancy
  • diabetes
  • heart failure
  • coronary artery disease
  • kidney disease
  • hepatic disease
  • cancer
  • phenylketonuria
  • celiac disease
  • food allergies
  • bariatric surgery history
  • participation in any other weight loss program

Treatment and study plan

Online platform group

Behavioral

The online platform has social network, gamification and short-text sessions.

Online dietitian coaching

Behavioral

Dietitian coaching refers to individual online sessions between a dietitian and participants to strengthen dietary recommendations

Control Group

Behavioral

Minimal intervention with four videos with diet, physical activity and behavior change recommendations

Primary outcomes

  1. mean weight difference

    Time frame: 24 weeks

    self-reported mean weight difference of 4kg between experimental and control groups

Secondary outcomes

  1. Mean body mass index difference

    Time frame: 24 weeks

    Body mass index difference between experimental and control groups

  2. Daily fruit and vegetables consumption difference

    Time frame: 24 weeks

    Number of daily portions of fruit and vegetables intake difference between experimental and control groups

  3. Sugar-added liquids consumption difference

    Time frame: 24 weeks

    Mean difference in weekly consumption of sugar-added liquids in mL between experimental and control groups

  4. Physical activity classification change

    Time frame: 24 weeks

    Change physical activity level as measured by the International Physical Activity Questionnaire IPAQ

Other outcomes

  1. Quality of life change

    Time frame: 24 weeks

    Quality of life as measured by SF-36 change between control and intervention groups

Sponsors and collaborators

Lead sponsor

Federal University of Minas Gerais

Other

Collaborators

  • Ministry of Science and Technology, Brazil

Registry information

Official study title

Use of Web as a Tool to Promote Weight Loss in Overweight and Obese Adults

Acronym: POEmaS

Important dates

Study start
2017
Primary completion
2018
Study completion
2018
First posted
Feb 19, 2018
Registry last updated
Aug 22, 2025

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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