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ObesityPOEmaSNCT03435445

Online Platform for Healthy Weight Loss (POEmaS)

A study testing Online platform group and Online dietitian coaching in people with Obesity and Overweight, run by Federal University of Minas Gerais at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Obesity, Overweight
What is being tested?
Online platform group and Online dietitian coaching
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,276 participants
Where
1 siteBrazil
Study dates
24 Sep 2017to 23 Apr 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

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

Who cannot join

  • pregnancy
  • diabetes
  • heart failure
  • coronary artery disease
  • kidney disease
  • hepatic disease
Show all 12Show fewer
  • cancer
  • phenylketonuria
  • celiac disease
  • food allergies
  • bariatric surgery history
  • participation in any other weight loss program

Trial locations and contacts

1 site in 1 country.

Brazil1 site

  • Federal University of Minas Gerais

    Belo Horizonte, Minas Gerais, 30130000

Other trials in Brazil

About this study

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

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.

Conditions
Obesity, Overweight
Being tested
Online platform group, Online dietitian coaching, Control group
Keywords
obesity, overweight, telemedicine, ehealth
Medical subject headings
Obesity, Overweight

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Online platform groupBehavioural

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

  • Online dietitian coachingBehavioural

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

  • Control groupBehavioural

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

Study groups in NCT03435445
Study groupRoleWhat they receive
Online platform groupExperimentalOnline platform with diet, physical activity and behavior change recommendations for 24 weeks
Receives: Behavioral: Online platform group
Online dietitian coachingExperimentalDiet, physical activity and behavior change recommendations for 24 weeks and online sessions with a dietitian specialist for 12 weeks
Receives: Behavioral: Online platform group; Behavioral: Online dietitian coaching
Control groupActive comparatorVideos with diet, physical activity and behavior change recommendations for 24 weeks
Receives: Behavioral: Control group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. mean weight difference

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

    Measured: 24 weeks

Secondary outcomes (4)

  1. Mean body mass index difference

    Body mass index difference between experimental and control groups

    Measured: 24 weeks

  2. Daily fruit and vegetables consumption difference

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

    Measured: 24 weeks

  3. Sugar-added liquids consumption difference

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

    Measured: 24 weeks

  4. Physical activity classification change

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

    Measured: 24 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Feb 2018
  2. Study start24 Sep 2017
  3. Primary completion23 Apr 2018
  4. Study completion23 Apr 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
3 arms: Experimental group 1 receives diet, physical change and behavior change recommendations via an online platform for 24 weeks; Experimental Group 2 receives recommendations via an online platform plus a dietitian coaching via the online platform for 24 weeks; Control groups receives a minimal intervention with access to diet and physical change recommendations videos. After 24 weeks, the control group will gain access to the online platform.
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
1,276 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03435445
Sponsor's protocol ID
73545717500005149
Acronym
POEmaS
Status last verified
Aug 2025
First submitted
30 Jan 2018
Last updated
22 Aug 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Wadden TA, Butryn ML, Hong PS, Tsai AG. Behavioral treatment of obesity in patients encountered in primary care settings: a systematic review. JAMA. 2014 Nov 5;312(17):1779-91. doi: 10.1001/jama.2014.14173.

    PubMed 25369490

  • Collins CE, Morgan PJ, Jones P, Fletcher K, Martin J, Aguiar EJ, Lucas A, Neve MJ, Callister R. A 12-week commercial web-based weight-loss program for overweight and obese adults: randomized controlled trial comparing basic versus enhanced features. J Med Internet Res. 2012 Apr 25;14(2):e57. doi: 10.2196/jmir.1980.

    PubMed 22555246

  • Hutchesson MJ, Rollo ME, Krukowski R, Ells L, Harvey J, Morgan PJ, Callister R, Plotnikoff R, Collins CE. eHealth interventions for the prevention and treatment of overweight and obesity in adults: a systematic review with meta-analysis. Obes Rev. 2015 May;16(5):376-92. doi: 10.1111/obr.12268. Epub 2015 Mar 5.

    PubMed 25753009

  • Andrade AQ, Beleigoli A, Diniz MF, Ribeiro AL. Influence of Baseline User Characteristics and Early Use Patterns (24-Hour) on Long-Term Adherence and Effectiveness of a Web-Based Weight Loss Randomized Controlled Trial: Latent Profile Analysis. J Med Internet Res. 2021 Jun 3;23(6):e26421. doi: 10.2196/26421.

    PubMed 34081012

  • Beleigoli A, Andrade AQ, Diniz MF, Ribeiro AL. Personalized Web-Based Weight Loss Behavior Change Program With and Without Dietitian Online Coaching for Adults With Overweight and Obesity: Randomized Controlled Trial. J Med Internet Res. 2020 Nov 5;22(11):e17494. doi: 10.2196/17494.

    PubMed 33151151

  • Beleigoli AM, Queiroz de Andrade A, Haueisen Diniz MF, Alvares RS, Ribeiro AL. Online platform for healthy weight loss in adults with overweight and obesity - the "POEmaS" project: a randomized controlled trial. BMC Public Health. 2018 Aug 1;18(1):945. doi: 10.1186/s12889-018-5882-y.

    PubMed 30068393

Questions about this trial

What is this clinical trial studying?

A study testing Online platform group and Online dietitian coaching in people with Obesity and Overweight, run by Federal University of Minas Gerais at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

mean weight difference (time frame: 24 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03435445, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Aug 2025.

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