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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 oppdatert av: 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.

Studieoversikt

Status

Ukjent

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Forventet)

36

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Mexico
    • Sonora
      • Hermosillo, Sonora, Mexico, 83000
        • Rekruttering
        • Centro de Promoción de Salud Nutricional (CPSN)
        • Ta kontakt med:
        • Hovedetterforsker:
          • Rolando Giovanni Díaz Zavala, Ph.D.

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

20 år til 55 år (Voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: PASO diet group
Annen: 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
Annen: Low-fat diet group
This group include a low-fat, low calorie diet (1200-1800 kcal), in addition of a behavioral change protocol.
Annen: Waiting list group
Annen: 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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tidsramme
Endring i kroppsvekt
Tidsramme: baseline til 3 måneder
baseline til 3 måneder

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Endring i fastende glukose
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Endring i totalt kolesterol
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Endring i LDL-kolesterol
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Endring i HDL-kolesterol
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Endring i triglyserider
Tidsramme: baseline til 3 måneder
baseline til 3 måneder
Endring i gammaglutamyltransferase
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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Universidad de Sonora

Etterforskere

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

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

10. oktober 2018

Primær fullføring (Forventet)

31. juli 2021

Studiet fullført (Forventet)

31. juli 2021

Datoer for studieregistrering

Først innsendt

23. juli 2018

Først innsendt som oppfylte QC-kriteriene

23. juli 2018

Først lagt ut (Faktiske)

31. juli 2018

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

15. april 2020

Siste oppdatering sendt inn som oppfylte QC-kriteriene

14. april 2020

Sist bekreftet

1. april 2020

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • PASOdiet-OBMEX-2018

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

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Studerer et amerikansk FDA-regulert medikamentprodukt

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Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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