ClinicalTrials.gg
Status unknownNCT03347942Updated Nov 20, 2017

Effects of the Administered Time of Meal on the Treatment of Overweight and Obesity

An interventional study of Intervention group and Control group in Feeding Behavior, Diet, Reducing and Eating, sponsored by Hospital de Clinicas de Porto Alegre. Status unknown at 1 site in Brazil. Open to participants aged 20 Years to 59 Years. Per ClinicalTrials.gov, last updated 2017-11-20.

Sponsored by Hospital de Clinicas de Porto Alegre · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Sep 2017), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Aug 2017, registered Nov 2017).
Phase
Not applicable
Study type
Interventional
Enrollment
110
Allocation
Randomized
Ages
20 Years to 59 Years
Sex
All
01

Study summary

Objectives: To evaluate the impact of the meal time administered on the body weight of adult individuals of both sexes, being overweight and obese.

Experimental design: randomized controlled trial. Place of research: Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.

Materials and methods: Anthropometric data, blood pressure, waist diameter will be measured; venous blood samples will be collected and stored for glucose, total cholesterol, triglycerides, HDL-cholesterol, urea, creatinine and ALT in serum.

Intervention: Wait at least 20 minutes after finishing the first portion of meals, previously considered sufficient by the individual before serving again. The control group will also serve the dish the same way, but you can serve additional portion without waiting.

Measurements: P values less than 0.05 will be considered statistically significant.

Expected results: Weight loss, decrease in anthropometric markers and risk factors for cardiovascular diseases.

Read the detailed description

Introduction: The increasing rates of overweight and obesity in the world population have worried health professionals about their quality and life expectancy. Intervention methods such as weight management programs can promote eating behaviors more suited to the energy needs of these individuals.

Objectives: To evaluate the impact of the meal time administered on the body weight of adult individuals of both sexes, overweight and obese.

Experimental design: randomized controlled trial. Place of research: Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.

Participants: Adults of both sexes. Materials and methods: Individuals will be invited to participate and will receive a free and informed consent form. If they agree, anthropometric data, blood pressure, waist diameter will be measured; venous blood samples will be collected and stored for glucose, total cholesterol, triglycerides, HDL-cholesterol, urea, creatinine and ALT in serum.

Intervention: Wait at least 20 minutes after finishing the first portion of meals, previously considered sufficient by the individual before serving again. The control group will also serve the dish the same way, but you can serve additional portion without waiting.

Measurements: The Kolmogorov-Smirnoff tests will be used to evaluate the distribution of continuous variables, and Student's t test, Mann-Whitney, and chi-square test, when appropriate. Values of p less than 0.05 will be considered statistically significant.

Expected results: Adults randomized to receive the intervention will gain weight loss, decrease in anthropometric markers and risk factors for cardiovascular diseases.

Project cost / benefit: Low cost and risk study that will contribute to the development of actions and programs related to the reduction of risk factors due to overweight and disease prevention.

02

Conditions studied

  • Feeding Behavior
  • Diet, Reducing
  • Eating

Keywords

  • Overweight
  • Obesity
  • Satiety
  • Cardiovascular risk
03

In context

Feeding Behavior

985 studies on the registry are indexed under Feeding Behavior; 178 are open to participants now.

This study's planned enrollment of 110 is above the median of 77 across 700 interventional studies indexed under Feeding Behavior.

Browse Feeding Behavior studies →

Lead sponsor

Hospital de Clinicas de Porto Alegre is the lead sponsor of 456 studies on the registry; 61 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 59 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Overweight and obesity grade I, according to WHO criteria (1998).

Exclusion criteria

Exclusion Criteria:

  • Normal weight, obesity> grade I;
  • Use of appetite-enhancing medications such as , tricyclic antidepressants, antipsychotics, mood modulators and anticonvulsants, or reduce body weight , such as anorexigenics, and antidiabetics that can modify body weight;
  • In follow-up or nutritional intervention already established and;
  • Refusal to sign the form.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
110 participants (estimated)

Study arms

  • Experimental
    Intervention

    During a period of 30 days the research participant in the intervention group will be instructed to wait at least 20 minutes after finishing the first portion of meals previously considered sufficient by the individual before being served again if he or she feels the need.

    Behavioral: Intervention group

  • Other
    Control

    The control group will also serve the dish the same way, but you can serve additional portion without waiting.

    Other: Control group

Interventions

  • BehavioralIntervention group

    Wait at least 20 minutes after finishing the first portion of meals previously considered sufficient by the individual before serving again if he or she feels the need. The intervention time will be monitored by the participants themselves, who will be instructed by the researcher when the methodology to be performed.

  • OtherControl group

    The control group will also serve the dish of the form, but can serve additional portion without waiting.

06

What researchers measure

Primary outcomes

  1. Mean body weight

    * Measurement of body weight in kilograms - will be carried out on the balance of Toledo® brand with a capacity of 200 kg, after urinating. * The individual will keep his body erect, with arms hanging over the body and heels attached. * Participants should only be in their underwear and disposable surgical dress, barefoot.

    Time frame: 30 days

Secondary outcomes

  1. Cardiovascular risk assessment scores

    The calculation will be done with the CV Risk Calculator tool of the American College of Cardiology and the American Cardiology Association to obtain the percentage (%) risk for acute myocardial infarction or stroke in ten years.

    Time frame: 30 days

  2. Waist diameter values

    * It will be obtained with flexible tape and inelastic (in centimeters), with the individual standing erect, arms extended along the body and feet together. * The tape will be positioned at the midpoint between the iliac crest and the outer side of the last rib.

    Time frame: 30 days

07

Study locations

1 of 1 sites recruiting
  • Hospital de Clínicas de Porto Alegre
    Porto Alegre, Rio Grande Do Sul 90035903, Brazil
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2017 (actual). Primary completion is estimated for Dec 2017, 4 months after the start.

Of 503 non-industry interventional studies with no phase under Feeding Behavior, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 5 and three quarters within 31. This study's planned 4 months is below that.

Counting every sponsor, half of 515 studies reached it within 14 months; a quarter within 5 and three quarters within 31.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 16, 2017
First posted
Nov 20, 2017
StartActual
Aug 10, 2017
Primary completionEst.
Dec 2017
CompletionEst.
Jul 2018
Last update
Nov 20, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 20, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03347942
Responsible party
Sponsor
First posted
Nov 20, 2017
Start date
Aug 10, 2017
Primary completion
Dec 2017 (estimated)
Completion
Jul 2018 (estimated)
Last update
Nov 20, 2017

Study contacts

Milena Artifon, Nutritionist
Contact
milena.artifon@gmail.com
55 54 991661416
Thaís R Moreira, Nutritionist
Contact
thaisr_moreira@hotmail.com
55 51 999161004
Tania W Furlanetto, PhD
study director · Hospital de Clínicas de Porto Alegre

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2017. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion