NCT06261229

Brief Summary

This study is a parallel randomized controlled trial (RCT). To determine the effect of intermittent fasting, intermittent fasting with behavioral economics, and intensive lifestyle modification on nutritional status; the differences between HOMA-IR, body weight change, and body composition in obese people. Each participant will be randomized to receive the intervention (intermittent fasting, intermittent fasting with behavioral economics, or intensive lifestyle modification. The study protocol will be explained to the eligible participant and informed written consent will be obtained. The total sample size will be 123 participants. Blood and urine samples will be collected at baseline and each follow-up visit including 1-month, 2-months, 6-month, and 12-months, respectively for further study to find out the mechanisms of weight loss, weight regain, and the improvement in the metabolic disease.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
123

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 18, 2022

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

October 4, 2022

Completed
1.4 years until next milestone

First Posted

Study publicly available on registry

February 15, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2024

Completed
Last Updated

April 5, 2024

Status Verified

April 1, 2024

Enrollment Period

2.2 years

First QC Date

October 4, 2022

Last Update Submit

April 4, 2024

Conditions

Keywords

Intermittent Fastingbehavioral economicObese patientsWeight controlHOMA-IR

Outcome Measures

Primary Outcomes (2)

  • HOMR-IR (index)

    Homeostatic Model Assessment for Insulin Resistance

    Change from Baseline HOMR-IR at 6 months and 12 months

  • Body mass index (kg/m^2)

    Body weight and height will be combined to report BMI in kg/m\^2

    Change from Baseline Body mass index at 1 month, 2 months, 4 months, 6 months, 9 months, and 12 months

Secondary Outcomes (14)

  • FBS (mg/dl)

    Change from Baseline FBS (mg/dl) at 1 month, 2 months, 6 months, and 12 months

  • HbA1C (%)

    Change from Baseline HbA1C (%) at 1 month, 2 months, 6 months, and 12 months

  • Albumin (g/L)

    Change from Baseline Albumin (g/L) at 1 month, 2 months, 6 months, and 12 months

  • Creatinine (mg/dL)

    Change from Baseline Creatinine (mg/dL) at 1 month, 2 months, 6 months, and 12 months

  • Alanine transaminase (ALT) U/L

    Change from Baseline Alanine transaminase (ALT) U/L at 1 month, 2 months, 6 months, and 12 months

  • +9 more secondary outcomes

Study Arms (3)

Intermittent fasting

EXPERIMENTAL

The participant will consume food about/ within 8 hours per day

Behavioral: Intermittent fasting

Intermittent fasting + Behavioral economic

EXPERIMENTAL

The participant will consume food about/ within 8-hour per day. They will be rewarded as money when they achieve their weight loss goal or/and successfully do intermittent fasting 5 days/week.

Behavioral: Intermittent fasting + Behavioral economic

Intensive Lifestyle Modification

EXPERIMENTAL

Advice about nutrition knowledge, healthy eating diet, diet prescription, and exercise

Behavioral: Intensive Lifestyle Modification

Interventions

The participant will consume food about/ within 8-hour per day

Intermittent fasting

The participant will consume food about/ within 8-hour per day. They will be received a reward as money when achieve weight loss goal or/and success doing intermittent fasting 5 days/week

Also known as: Intermittent fasting + Incentives
Intermittent fasting + Behavioral economic

Advice about nutrition knowledge, healthy eating diet, diet prescription, and exercise

Intensive Lifestyle Modification

Eligibility Criteria

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

You may qualify if:

  • Aged 18-65 year
  • BMI start at 25.0 kg/m2 (above 24.99 kg/m2)
  • Weight change less than 5% in 6-month
  • Ability and willingness to provide informed consent

You may not qualify if:

  • Pregnant women or breed feeding
  • Kidney disease/ Liver disease
  • Abnormal Thyroid hormone, abnormal GI function
  • Postoperative bariatric surgery
  • Drug control weight or reduce appetite
  • Drug abuse
  • Mental illness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mahidol University

Ratchathewi, Bangkok, 10400, Thailand

Location

MeSH Terms

Conditions

Intermittent FastingWeight LossObesity

Condition Hierarchy (Ancestors)

FastingFeeding BehaviorBehaviorBody Weight ChangesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsOverweightOvernutritionNutrition DisordersNutritional and Metabolic Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 4, 2022

First Posted

February 15, 2024

Study Start

April 18, 2022

Primary Completion

June 30, 2024

Study Completion

June 30, 2024

Last Updated

April 5, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations