Efficacy of Protein Supplemented Very Low Calorie Meals on Weight Loss

NCT ID: NCT04597788

Last Updated: 2020-10-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

104 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-11-16

Study Completion Date

2023-01-31

Brief Summary

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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.

Detailed Description

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Approximately 30% of the Korean population has obesity or abdominal obesity and is often accompanied by obesity related complications such as cardiovascular disease, diabetes, osteoarthritis and even some types of cancer. However, there are not many lifestyle modification treatments available that have long-term effects other than drugs and surgical treatments in the management of obesity.

Preserving muscle mass should also be considered in weight loss especially for elderly adults with obesity, because decreased muscle mass and strength can negatively affect morbidity and mortality in the elderly.

Therefore, the investigators want to evaluate the effectiveness and safety of the protein supplemented very low calorie meals on weight loss, body composition as well as metabolic changes compared with traditional low calorie low fat diet in people with obesity.

Conditions

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Obesity Sarcopenic Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Protein supplemented very low calorie diet program

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.

Group Type EXPERIMENTAL

Protein supplemented very low calorie diet program

Intervention Type OTHER

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.

Conventional low calorie diet program

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.

Group Type ACTIVE_COMPARATOR

Conventional low calorie diet program

Intervention Type OTHER

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.

Interventions

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Protein supplemented very low calorie diet program

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.

Intervention Type OTHER

Conventional 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.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

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

Exclusion Criteria

* 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)
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Seoul National University Bundang Hospital

OTHER

Sponsor Role collaborator

Seoul National University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Seoul National University Bundang Hospital

Seongnam-si, Gyeonggi-do, South Korea

Site Status

Countries

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South Korea

Central Contacts

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Ju Young Kim, MD, PhD

Role: CONTACT

(82)1036964218

References

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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.

Reference Type DERIVED
PMID: 39328464 (View on PubMed)

Other Identifiers

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B-2004-604-003

Identifier Type: -

Identifier Source: org_study_id

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