NCT04502329

Brief Summary

The aim of this randomized controlled study determine the efficacy of calorie restriction intermittent fasting diet in metabolic parameters and weight management among metabolic syndromes adults. It was done on metabolic syndrome patients, aged 18-65 years at an academic institution in Istanbul,Turkey. Subjects were divided into two groups; IER (Intermittent Energy Restriction-intervention group, calori restriction of 300-500kcal/d combined with 16:8 model Intermittent Fasting) and CER (Countinous Energy Restriction- control group continous restriction of 300-500kcal/d). Assessment was ascertained at baseline and 12 weeks. Blood samples were analyzed for lipid profile, fasting plasma glucose, ınsulin, HOMA-IR. Blood pressure and body composition were evaluated.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
65

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 30, 2019

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 10, 2020

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 10, 2020

Completed
5 days until next milestone

First Submitted

Initial submission to the registry

June 15, 2020

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 6, 2020

Completed
Last Updated

August 6, 2020

Status Verified

August 1, 2020

Enrollment Period

1.1 years

First QC Date

June 15, 2020

Last Update Submit

August 4, 2020

Conditions

Keywords

intermittent fastingmetabolic syndrometime restricted dietenergy restriction

Outcome Measures

Primary Outcomes (16)

  • Average weight and standard deviation of the participants

    Weight in kilograms, was measured with TANİTA SC-330 instrument.

    Change from Baseline Weight at 12 weeks

  • Average height and standard deviation of the participants

    Height measured with SECA-213 instrument.

    Baseline

  • Average Body Mass Indexand standard deviation of the participants

    Weight and Height were combined to report BMI in kg/m\^2

    Change from Baseline Body Mass Index at 12 weeks

  • Average Waist circumference and standard deviation of the participants

    Waist circumference in centimeters, was measured by the same dietician with the help of unstretched tape measure.

    Change from Baseline Weight at 12 weeks

  • Concentration of Total Cholesterol

    Total cholesterol in mg/dL, results was provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Concentration of High-Density Cholesterol

    High Dansity Cholesterol in mg/dL, results was provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Concentration of Low-Density Cholesterol

    Low Dansity Cholesterol in mg/dL, results was provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Concentration of Triglyceride

    Triglyceride in mg/dL, results was provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Concentration of Fasting plasma glucose

    Fasting plasma glucose in mg/dL, was provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Concentration of Insülin

    Insülin in IU/L, was provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Rate of HOMA-IR

    HOMA-IR was calculated with fasting plasma glucose and insülin levels. HOMA-IR = (Fasting plasma glucose \[mg/dL\] x Insülin \[IU/L\] ) / 405

    Change from Baseline Weight at 12 weeks

  • Concentration of HbA1c

    HbA1c what value was stated as a percentage (%), were provided from participant's clinician before and 12 weeks after diet.

    Change from Baseline Weight at 12 weeks

  • Amount of Fat mass

    Fat mass in kilograms was measured with TANİTA SC-330 instrument.

    Change from Baseline Weight at 12 weeks

  • Rate of Body fat percentage

    Body fat percentage was calculated combined with weight and fat mass. Body fat percentage = (Body mass \[kg\] / Weight \[kg\]) x 100.

    Change from Baseline Weight at 12 weeks

  • Amount of Fat free mass

    Fat free mass in kilograms, was measured with TANİTA SC-330 instrument.

    Change from Baseline Weight at 12 weeks

  • Amount of Total body water

    Total body water in kilograms, was measured with TANİTA SC-330 instrument.

    Change from Baseline Weight at 12 weeks

Study Arms (2)

IER

EXPERIMENTAL

Intermittent Energy Restriction

Other: Diet

CER

NO INTERVENTION

Continous Energy Restriction

Interventions

DietOTHER

Energy Restriction Intermittent Fasting Diet

IER

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being between the ages of 18-65
  • Body mass index to be 27 and above
  • Clinical diagnosis of metabolic syndrome according to the criteria of IDF 2005 or NCP ATP III.

You may not qualify if:

  • Being in the pre-menopausal or menopause
  • Following a special diet (such as Celiac, Type 1 diabetes)
  • Using a special nutritional supplement (omega 3, probiotic, vitamin-mineral, teff seed etc.)
  • Those who do not comply with the diet, pregnant, being lactating
  • Doing heavy physical activity or working in a heavy job
  • Presence of liver, kidney or immune deficiency
  • Conditions that will seriously affect weight management such as having bariatric surgery
  • Determined to have had an unintentional sudden weight loss of more than 5% in the last three months
  • Not be practicing Muslim Ramadan fasting or had changed their dietary pattern 12 weeks before the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul Medipol University

Istanbul, Turkey (Türkiye)

Location

Related Publications (4)

  • Welton S, Minty R, O'Driscoll T, Willms H, Poirier D, Madden S, Kelly L. Intermittent fasting and weight loss: Systematic review. Can Fam Physician. 2020 Feb;66(2):117-125.

  • Rynders CA, Thomas EA, Zaman A, Pan Z, Catenacci VA, Melanson EL. Effectiveness of Intermittent Fasting and Time-Restricted Feeding Compared to Continuous Energy Restriction for Weight Loss. Nutrients. 2019 Oct 14;11(10):2442. doi: 10.3390/nu11102442.

  • Patterson RE, Sears DD. Metabolic Effects of Intermittent Fasting. Annu Rev Nutr. 2017 Aug 21;37:371-393. doi: 10.1146/annurev-nutr-071816-064634. Epub 2017 Jul 17.

  • Antoni R, Johnston KL, Collins AL, Robertson MD. Effects of intermittent fasting on glucose and lipid metabolism. Proc Nutr Soc. 2017 Aug;76(3):361-368. doi: 10.1017/S0029665116002986. Epub 2017 Jan 16.

MeSH Terms

Conditions

Metabolic SyndromeIntermittent Fasting

Interventions

Diet

Condition Hierarchy (Ancestors)

Insulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesFastingFeeding BehaviorBehavior

Intervention Hierarchy (Ancestors)

Nutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Randomized control trial The first participant assigned Intermittent Energy Restriction Group, the others assigned Continous Energy Restricition group or Intertermittent Energy Restriction Group respectively.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Clinical Dietitian

Study Record Dates

First Submitted

June 15, 2020

First Posted

August 6, 2020

Study Start

January 30, 2019

Primary Completion

March 10, 2020

Study Completion

June 10, 2020

Last Updated

August 6, 2020

Record last verified: 2020-08

Data Sharing

IPD Sharing
Will not share

Locations