NCT04044118

Brief Summary

Calorie restriction (CR), which has the potential effect on weight loss and blood amino acids, has been demonstrated to associate with gut microbiota in humans, especially in obese individuals. However, studies for simultaneously evaluating enterotype-dependent impacts of CR on the gut microbiota and blood amino acids in nonobese individuals are still limited. Here, 41 nonobese individuals received a 3-week CR diet with approximately 50% fewer calories than a normal diet. The investigators measured individuals' BMI and blood amino acid concentration, along with the gut microbiota before and after the intervention. In this trial, 28 Enterotype Bacteroides (ETB) subjects and 13 Enterotype Prevotella (ETP) subjects were identified before the intervention. The purpose of this intervention study is to evaluate the effect of calorie restriction on BMI loss, amino acid, and gut microbiota in healthy volunteers of two different enterotypes and provide useful insights for potential application of gut microbiome stratification in personalized nutrition intervention.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
41

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2017

Shorter than P25 for not_applicable

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

April 1, 2017

Completed
29 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2017

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 4, 2018

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

July 24, 2019

Completed
12 days until next milestone

First Posted

Study publicly available on registry

August 5, 2019

Completed
Last Updated

August 5, 2019

Status Verified

July 1, 2019

Enrollment Period

29 days

First QC Date

July 24, 2019

Last Update Submit

July 31, 2019

Conditions

Keywords

gut microbiotacalorie restrition dietary intervention

Outcome Measures

Primary Outcomes (2)

  • change in BMI of all volunteers (n=41) following calorie restriction dietary intervention

    BMI was be measured via clinic scale.

    at baseline and after 3-week calorie restriction dietary intervention

  • different changes in BMI between enterotype Bacteroides (n=28) and enterotype Prevotella (n=13) follow calorie restriction dietary intervention

    BMI was be measured via clinic scale.

    at baseline and after 3-week calorie restriction dietary intervention

Secondary Outcomes (4)

  • change in concentration of amino acids of 36 volunteers following calorie restriction dietary intervention

    at baseline and after 3-week calorie restriction dietary intervention

  • different changes in concentration of 31 amino acids (fasting status) between enterotype Bacteroides (n=25) and enterotype Prevotella (n=11) follow calorie restriction dietary intervention

    at baseline and after 3-week calorie restriction dietary intervention

  • change in gut microbiota of all volunteers (n=41) following calorie restriction intervention

    at baseline and after 3-week calorie restriction dietary intervention

  • different changes in gut microbiota between enterotype Bacteroides (n=28) and enterotype Prevotella (n=13) follow calorie restriction dietary intervention

    at baseline and after 3-week calorie restriction dietary intervention

Study Arms (1)

Caloric Restriction

EXPERIMENTAL

3-week low calorie diet

Behavioral: Low Calorie Diet

Interventions

Low Calorie Diet consisted of \~50% calories of a normal-calorie diet (female, 1000kcal/day; male, 1200kcal/day)

Caloric Restriction

Eligibility Criteria

Age22 Years - 53 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • BMI less than 28 kg/m2 and more than 18 kg/m2;
  • without antibiotics in the recent 2 months;
  • regular eating and lifestyle patterns;
  • no international travel in the recent 3 month;
  • without hypertension, diabetes mellitus, gastrointestinal disease and other severe auto-immune disease;
  • without prebiotic or probiotic supplements in the recent 2 months;

You may not qualify if:

  • with antibiotics in the recent 2 months;
  • Failure to comply with experimental requirement;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

BGI-Shenzhen, Guangdong, China

Shenzhen, Guangdong, 518083, China

Location

Related Publications (5)

  • Wang SS, Lay S, Yu HN, Shen SR. Dietary Guidelines for Chinese Residents (2016): comments and comparisons. J Zhejiang Univ Sci B. 2016 Sep;17(9):649-56. doi: 10.1631/jzus.B1600341.

    PMID: 27604857BACKGROUND
  • Redman LM, Huffman KM, Landerman LR, Pieper CF, Bain JR, Muehlbauer MJ, Stevens RD, Wenner BR, Kraus VB, Newgard CB, Kraus WE, Ravussin E. Effect of caloric restriction with and without exercise on metabolic intermediates in nonobese men and women. J Clin Endocrinol Metab. 2011 Feb;96(2):E312-21. doi: 10.1210/jc.2010-1971. Epub 2010 Dec 1.

    PMID: 21123443BACKGROUND
  • Santacruz A, Marcos A, Warnberg J, Marti A, Martin-Matillas M, Campoy C, Moreno LA, Veiga O, Redondo-Figuero C, Garagorri JM, Azcona C, Delgado M, Garcia-Fuentes M, Collado MC, Sanz Y; EVASYON Study Group. Interplay between weight loss and gut microbiota composition in overweight adolescents. Obesity (Silver Spring). 2009 Oct;17(10):1906-15. doi: 10.1038/oby.2009.112. Epub 2009 Apr 23.

    PMID: 19390523BACKGROUND
  • Ott B, Skurk T, Hastreiter L, Lagkouvardos I, Fischer S, Buttner J, Kellerer T, Clavel T, Rychlik M, Haller D, Hauner H. Effect of caloric restriction on gut permeability, inflammation markers, and fecal microbiota in obese women. Sci Rep. 2017 Sep 20;7(1):11955. doi: 10.1038/s41598-017-12109-9.

    PMID: 28931850BACKGROUND
  • Wu GD, Chen J, Hoffmann C, Bittinger K, Chen YY, Keilbaugh SA, Bewtra M, Knights D, Walters WA, Knight R, Sinha R, Gilroy E, Gupta K, Baldassano R, Nessel L, Li H, Bushman FD, Lewis JD. Linking long-term dietary patterns with gut microbial enterotypes. Science. 2011 Oct 7;334(6052):105-8. doi: 10.1126/science.1208344. Epub 2011 Sep 1.

    PMID: 21885731BACKGROUND

MeSH Terms

Interventions

Caloric Restriction

Intervention Hierarchy (Ancestors)

Diet TherapyNutrition TherapyTherapeuticsEnergy IntakeDietNutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 24, 2019

First Posted

August 5, 2019

Study Start

April 1, 2017

Primary Completion

April 30, 2017

Study Completion

February 4, 2018

Last Updated

August 5, 2019

Record last verified: 2019-07

Data Sharing

IPD Sharing
Will share

Study Protocol, Statistical analysis plan and analytic code will release

Shared Documents
STUDY PROTOCOL, SAP, ANALYTIC CODE
Time Frame
analytic code will be available for all the time
Access Criteria
analytic code will be available at github
More information

Locations