NCT04597788

Brief Summary

This randomized clinical trial will evaluate the efficacy and safety of protein supplemented very low calorie meals on weight loss and weight loss maintenance among people with obesity.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
104

participants targeted

Target at P50-P75 for not_applicable obesity

Timeline
Completed

Started Nov 2020

Typical duration for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

September 3, 2020

Completed
2 months until next milestone

First Posted

Study publicly available on registry

October 22, 2020

Completed
25 days until next milestone

Study Start

First participant enrolled

November 16, 2020

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2023

Completed
Last Updated

October 22, 2020

Status Verified

July 1, 2020

Enrollment Period

2 years

First QC Date

September 3, 2020

Last Update Submit

October 15, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes in weight

    Changes of weight loss from the baseline expressed as kg

    12 months

Secondary Outcomes (9)

  • Changes in body composition

    12 months

  • Changes in systolic and diastolic blood pressure

    12 months

  • Changes in triglyceride

    12 months

  • Changes in glucose

    12 months

  • Changes in high density lipoprotein (HDL) Cholesterol

    12 months

  • +4 more secondary outcomes

Study Arms (2)

Protein supplemented very low calorie diet program

EXPERIMENTAL

The lifestyle intervention using protein supplemented very low calorie meals will be implemented with individual counseling sessions for 12 months. Initial intensive weight loss stage will be delivered during the first 4 month period with total meal replacement to partial meal replacement using protein supplemented very low calorie meals. During the weight loss maintenance stage, regular intermittent very low calorie meal replacement one week per month will be delivered for the entire period. Mobile counseling will be offered to help patients achieve weight loss as well as weight loss maintenance.

Other: Protein supplemented very low calorie diet program

Conventional low calorie diet program

ACTIVE COMPARATOR

The conventional low calorie diet program will be offered to participants assigned to control group using educational material and individual counseling sessions for 12 months. Mobile counseling will be also offered for weight loss and weight loss maintenance.

Other: Conventional low calorie diet program

Interventions

Protein supplemented very low calorie meal is a shake-type meal replacement with total calories of 600 to 800 calories per day and proteins provided at 1.2g of ideal body weight per day. The four-month, very low calorie diet program schedule will be as follows. In the first two weeks, all three meals are replaced, followed by two meals replaced and one meal in food in the next six weeks, and one meal replacement is recommended for the next eight weeks. For the next eight months, the intermittent very low calorie meal replacements will be provided regularly for one week a month. If a subject gains weight more than 2kg, he or she will have an additional 1 week of two meal replacements, and if a subject gains weight more than 4kg, he or she should have an additional 2 weeks of replacement. Individual sessions will be held 11 times during the study. Mobile counseling with dietitians or nurses will be offered to help subjects lose weight and maintain weight loss.

Protein supplemented very low calorie diet program

Low calorie diet consists of 1200 to 1500 calories will be educated and lifestyle modification will be encouraged for participants in control group. Educational materials as well as recipes for low calorie diet will be provided in individual sessions. Mobile counseling will also be offered for sticking to the diet program.

Conventional low calorie diet program

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Body Mass Index (BMI ) more than 25 kg/m2 or
  • Waist circumference more than 90 cm in men or 85 cm in women

You may not qualify if:

  • History of treatment with anti-obesity drugs or participation in another weight loss program in previous 6 months
  • Weight changes more than 3 kg during the 6 months before participation
  • Unstable cardiovascular events during the 6 months before participation
  • Uncontrolled mood disorder
  • History of eating disorder
  • History of alcohol use disorder
  • History of gallstone
  • Chronic renal failure (estimated glomerular filtration less than 30 ml/min)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, 463-707, South Korea

Location

Related Publications (1)

  • Cho E, Kim S, Kim HJ, Cho B, Park JH, Kwon H, Kim JY, Go Y, Kang DG, Shin E, Lee S, Gil S, Kim H, Ahn J, Kim JY, Jung W, Go E. Effectiveness of a protein-supplemented very-low-calorie diet program for weight loss: a randomized controlled trial in South Korea. Front Nutr. 2024 Sep 12;11:1370737. doi: 10.3389/fnut.2024.1370737. eCollection 2024.

MeSH Terms

Conditions

Obesity

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Central Study Contacts

Ju Young Kim, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 3, 2020

First Posted

October 22, 2020

Study Start

November 16, 2020

Primary Completion

December 1, 2022

Study Completion

January 31, 2023

Last Updated

October 22, 2020

Record last verified: 2020-07

Locations