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Evaluation of the Plant-based Approaches to Stop Obesity Diet for the Treatment of Overweight and Obesity (PASO diet)

14. april 2020 opdateret af: Rolando Giovanni Díaz Zavala, Universidad de Sonora

Evaluation of the Efficacy of Plant-based Approaches to Stop Obesity Diet in Comparison With a Control Group on Body Weight in Mexican Adults With Overweight and Obesity: Randomized Controlled Trial

The accumulation of excess of body weight is one of the most important problems worldwide, thus effective and accessible treatments are required. Some authors highlighted that treatment is focused solely on lifestyle (diet, physical activity, behavioral therapy) has a limited effect on body weight because it does not consider the biological mechanisms linked to weight loss in patients with obesity. On the other hand, drugs and bariatric surgery consider these biological approaches; however, its costs, safety and effectiveness limits its use on a large scale. Research studies support the existence of compounds in plants (such as epigallocatechin gallate, caffeine, cinnamaldehyde, fiber), and water with biological properties that would contribute to the treatment of overweight and obesity. However, at the moment, these compounds have only been evaluated individually and their effects have been significant but limited clinically, therefore, more research studies are needed to evaluate whether several of these compounds contained in common plants synergistically have a clinical impact on the management of overweight and obesity. The present work integrates diverse plant-based approaches to stop obesity and it is compared with a control group and a waiting list group. The main aim is to evaluate the efficacy of the Plant-based Approaches to Stop Obesity diet (PASO diet) compared with a control group on body weight at 3 months in Mexican adults with overweight and obesity. This is a pilot study designed as a randomized controlled trial. The study will be conducted with a (n=36). The primary outcome is the change in body weight from baseline to 3 months. Secondary outcomes will be the changes from baseline to 3 months in body mass index, waist circumference, systolic and diastolic blood pressure, symptoms of depression, quality of life scales and biochemical parameters (fasting glucose, total cholesterol, LDL cholesterol, HDL-cholesterol, triglycerides and gamma glutamyl transferase). Additionally two 24-hour dietary recall will be measured at baseline and 3 months to evaluate adherence to the intervention.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

36

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Mexico
    • Sonora
      • Hermosillo, Sonora, Mexico, 83000
        • Rekruttering
        • Centro de Promoción de Salud Nutricional (CPSN)
        • Kontakt:
        • Ledende efterforsker:
          • Rolando Giovanni Díaz Zavala, Ph.D.

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

20 år til 55 år (Voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Mexican adults (> 20 years and <55)
  • Residents of the city of Hermosillo, Sonora
  • Obesity (BMI> 25 and <45)
  • Availability of time to participate in the study.
  • Economic capacity to acquire the assigned diet
  • Grant informed consent
  • Keep a dietary record for one week prior to the intervention

Exclusion Criteria:

  • Medical conditions that constitute a contraindication for the intervention, such as de-controlled diabetes, dyslipidemia with pharmacological treatment, blood pressure ≥160 / 100 mmHg, heart failure, renal failure, etc.
  • Previous bariatric surgery
  • Participate in another intervention or treatment for the management of obesity
  • Use of drugs or substances with an effect on weight, for example, metformin, orlistat or corticoids
  • Weight loss> 5% of total body weight in the last 4 months
  • Pregnancy or lactation
  • Another member of the family or acquaintance who has agreed to participate in the study
  • Consumption of more than 10 alcoholic drinks per week
  • Use of addictive substances as drugs of abuse
  • Psychiatric condition that prevents adherence to treatment, such as severe depression, bipolarity and schizophrenia Illiteracy
  • Gastrointestinal problems or any condition where coffee, tea or cinnamon are not well tolerated or contraindicated
  • People who drink more than 4 cups of coffee (tea) per day or its equivalent in caffeinated beverages.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: PASO diet group
Andet: PASO diet group
This group include a low-fat, low calorie diet (1200-1800 kcal), in addition of a behavioral change protocol. They will also be instructed to consume green tea (2 cups/day for 3 days/week), black tea (2 cups/day for 2 days/week), coffee (2 cups/day for 2 days/week), cinnamon (1 tsp/day for at least 3 days/week), psyllium fiber (3 tsp/day/week) and water (1.5 L/day/week).
Aktiv komparator: Low-fat diet group
Andet: Low-fat diet group
This group include a low-fat, low calorie diet (1200-1800 kcal), in addition of a behavioral change protocol.
Andet: Waiting list group
Andet: Waiting list group
This group will only receive written information with recommendations on healthy eating. When the study finished, this group will receive a behavioral change protocol with a low-fat, low calorie diet.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Ændring i kropsvægt
Tidsramme: baseline til 3 måneder
baseline til 3 måneder

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Ændring i fastende glukose
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Ændring i total kolesterol
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Ændring i LDL-kolesterol
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Ændring i HDL-kolesterol
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Ændring i triglycerider
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Ændring i gamma glutamyl transferase
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Change in waist circumference
Tidsramme: baseline to 3 months
baseline to 3 months
Change in body fat percentage
Tidsramme: baseline to 3 months
baseline to 3 months
Change in the Beck Depression Inventory score
Tidsramme: baseline to 3 months
The Beck Depression Inventory (BDI) is a 21-item questionnaire that assesses mood over the previous week. Total scores range from 0 to 63, with higher values indicating greater symptoms of depression. Scores of 0-9 reflect minimal (subclinical) symptoms, values of 10-18, 19-29, and ≥30 indicate mild, moderate, and severe symptoms of depression, respectively.
baseline to 3 months
Change in the Short Form-36 Health Survey score
Tidsramme: baseline to 3 months
The SF-36 Health Survey evaluates aspects of the quality of life in adult populations (over 16 years of age). The result of its application is the generation of eight concepts or scales of health, result of the average of the sum of the questions contained in the questionnaire for each concept. These concepts are: physical function, physical role, corporal pain, general health, vitality, social function, emotional role and mental health. The SF-36 is a self-applied instrument and contains 36 questions. For each scale, the answers to each question are coded and recoded (10 questions), and the results are interpreted on a scale of 0 to 100, lower results indicate poorer health and greater result better health).
baseline to 3 months
Change in systolic and diastolic blood pressure
Tidsramme: baseline to 3 months
baseline to 3 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Universidad de Sonora

Efterforskere

  • Ledende efterforsker: Rolando G Díaz Zavala, Ph.D., Universidad de Sonora

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

10. oktober 2018

Primær færdiggørelse (Forventet)

31. juli 2021

Studieafslutning (Forventet)

31. juli 2021

Datoer for studieregistrering

Først indsendt

23. juli 2018

Først indsendt, der opfyldte QC-kriterier

23. juli 2018

Først opslået (Faktiske)

31. juli 2018

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. april 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. april 2020

Sidst verificeret

1. april 2020

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • PASOdiet-OBMEX-2018

Plan for individuelle deltagerdata (IPD)

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