NCT01559415

Brief Summary

Almost half of the Dutch population is currently characterized by overweight and obesity. Losing weight is not the problem in obesity treatment, it is the seemingly obligatory weight regain after weight loss: the yoyo-effect. The primary objective of this study is to investigate the association between the weight-loss-induced cellular stress response and the rate of weight regain. The secondary objective is to investigate the differences in cellular stress response and weight regain after rapid and slow weight loss. To investigate this, subjects will receive meal replacements replacing either all or part of the daily meals during the intervention period. THe first group will consume 500 kcal/d diet for 5 weeks while the second group consumes a 1250 kcal/d diet for 3 months, both followed by 1 week normalization and a 2 week strict weight maintenance diet. During the 9-month follow-up period subjects will receive dietary advice according to the Dutch recommendations for healthy eating. The association between the amount of weight regain after the weight loss period and changes in adipokines, parameters of adipocyte metabolism, in vivo adipose tissue metabolism, adipocyte extracellular matrix gene expression profiles, adipocyte stress protein expression and gene polymorphisms in selected genes.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
58

participants targeted

Target at P25-P50 for not_applicable obesity

Timeline
Completed

Started Mar 2012

Typical duration for not_applicable obesity

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

March 1, 2012

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

March 12, 2012

Completed
9 days until next milestone

First Posted

Study publicly available on registry

March 21, 2012

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2014

Completed
Last Updated

December 23, 2014

Status Verified

December 1, 2014

Enrollment Period

2.7 years

First QC Date

March 12, 2012

Last Update Submit

December 22, 2014

Conditions

Keywords

Adipocytes

Outcome Measures

Primary Outcomes (2)

  • change in weight following weight loss

    VLCD diet group

    at 9 weeks and at 46 weeks

  • change in weight following weight loss

    LCD diet group

    at 16 weeks and at 53 weeks

Secondary Outcomes (88)

  • change in adipokine profile due to dietary intervention (VLCD-group)

    at baseline and after 5 weeks of VLCD diet

  • change in adipokine during weight stable-period (VLCD-group)

    after 5 weeks of VLCD diet and after 9 weeks

  • change in adipokine profile during follow-up (VLCD-group)

    at 9 weeks and after follow-up at 46 weeks

  • change in adipokine profile due to dietary intervention (LCD-group)

    at baseline and after 12 weeks of LCD diet

  • change in adipokine profile during weight-stable period (LCD-group)

    after 12 weeks of LCD diet and at 16 weeks

  • +83 more secondary outcomes

Study Arms (2)

Very Low Calorie Diet

EXPERIMENTAL
Other: Meal replacement diet using Modifast

Low Calorie Diet

ACTIVE COMPARATOR

1250 kcal diet in which Modifast is given in combination with a normal diet

Other: Normal diet combined with Modifast diet

Interventions

modifast intensive diet replacing all regular meals (500 kcal/d) for 5 weeks

Very Low Calorie Diet

Combination of modifast and regular diet (1250 kcal/d) for 3 months

Low Calorie Diet

Eligibility Criteria

Age20 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age (years): 20-65
  • Body Mass Index (kg/m2): 28-35
  • Non-smokers

You may not qualify if:

  • Subjects using prescription medication, or suffering from diseases or conditions that might influence the outcome of the study: this concerns diseases/medication that influence body weight regulation (malabsorption, untreated hypo/hyperthyroidism, eating disorders, systemic use of steroids, etc.) and obesity-related cardiovascular risk factors (heart disease, systolic and diastolic blood pressures \> 160/100 mmHg, blood glucose \> 6.1 mmol L-1, blood cholesterol \> 7 mmol L-1, blood triglycerides \> 3 mmol L-1)
  • marked alcohol consumption \> 21 alcoholic units week-1 (male), or \>14 alcoholic units week-1 (female)
  • planned major changes in physical activity during the study to an extent that might interfere with the study outcome as judged by the investigator;
  • blood donation within the past 2 months prior to the study
  • weight change of \>3 kg within 2 months prior to the study
  • psychiatric disease (based on medical history only)
  • pregnant or lactating women, or women planning to become pregnant within the next 12 months
  • surgically treated obesity
  • participation in other clinical studies within the last 3 months
  • drug abuse (based on clinical judgment)
  • unable to give informed consent
  • unable to engage in a low-calorie diet
  • unable to lose more then 8% of body weight after weight-loss period
  • following a special diet (vegetarian, Atkins or other).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Maastricht University

Maastricht, Limburg, 6200 MD, Netherlands

Location

Related Publications (6)

  • Qiao Q, Bouwman FG, van Baak MA, Roumans NJT, Vink RG, Mariman ECM. Plasma Levels of Triglycerides and IL-6 Are Associated With Weight Regain and Fat Mass Expansion. J Clin Endocrinol Metab. 2022 Jun 16;107(7):1920-1929. doi: 10.1210/clinem/dgac198.

  • Tareen SHK, Kutmon M, de Kok TM, Mariman ECM, van Baak MA, Evelo CT, Adriaens ME, Arts ICW. Stratifying cellular metabolism during weight loss: an interplay of metabolism, metabolic flexibility and inflammation. Sci Rep. 2020 Feb 3;10(1):1651. doi: 10.1038/s41598-020-58358-z.

  • Roumans NJT, Wang P, Vink RG, van Baak MA, Mariman ECM. Combined Analysis of Stress- and ECM-Related Genes in Their Effect on Weight Regain. Obesity (Silver Spring). 2018 Mar;26(3):492-498. doi: 10.1002/oby.22093. Epub 2018 Feb 5.

  • Vink RG, Roumans NJ, van der Kolk BW, Fazelzadeh P, Boekschoten MV, Mariman EC, van Baak MA. Adipose Tissue Meal-Derived Fatty Acid Uptake Before and After Diet-Induced Weight Loss in Adults with Overweight and Obesity. Obesity (Silver Spring). 2017 Aug;25(8):1391-1399. doi: 10.1002/oby.21903. Epub 2017 Jun 22.

  • Roumans NJ, Vink RG, Fazelzadeh P, van Baak MA, Mariman EC. A role for leukocyte integrins and extracellular matrix remodeling of adipose tissue in the risk of weight regain after weight loss. Am J Clin Nutr. 2017 May;105(5):1054-1062. doi: 10.3945/ajcn.116.148874. Epub 2017 Mar 15.

  • Vink RG, Roumans NJ, Cajlakovic M, Cleutjens JPM, Boekschoten MV, Fazelzadeh P, Vogel MAA, Blaak EE, Mariman EC, van Baak MA, Goossens GH. Diet-induced weight loss decreases adipose tissue oxygen tension with parallel changes in adipose tissue phenotype and insulin sensitivity in overweight humans. Int J Obes (Lond). 2017 May;41(5):722-728. doi: 10.1038/ijo.2017.38. Epub 2017 Feb 9.

MeSH Terms

Conditions

ObesityWeight Loss

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight Changes

Study Officials

  • Marleen van Baak, Professor

    Maastricht University

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

March 12, 2012

First Posted

March 21, 2012

Study Start

March 1, 2012

Primary Completion

November 1, 2014

Study Completion

November 1, 2014

Last Updated

December 23, 2014

Record last verified: 2014-12

Locations