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Reduction of Sweetened Beverages and Intrahepatic Fat (REDUCS)

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ClinicalTrials.gov Identifier: NCT01394380
Recruitment Status : Completed
First Posted : July 14, 2011
Last Update Posted : June 4, 2014
Information provided by (Responsible Party):

Study Description
Brief Summary:

The study will enroll 68 overweight male and female subjects with a high (> 2 3dl-can soda/day) consumption of sweetened beverage per day. After a run-in period of 4 weeks, subjects will be randomized to either a 12-week intervention arm in which sweetened beverages will be replaced by artificially sweetened, calorie-free beverages, or to a control arm. The following measurements will be performed at the end of the run-in period and at the end of the intervention period

  • intrahepatic fat concentration
  • visceral fat volume
  • changes in day-long metabolic profile from baseline(plasma glucose, insulin, and triglyceride concentrations)
  • changes in food intake and daily energy, carbohydrate and sugars intake from baseline

Condition or disease Intervention/treatment
Obesity Dyslipidemia Metabolic Syndrome Other: artificially sweetened sodas

Study Design

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 29 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Effects of a Reduction of Sweetened Beverages Consumption in Overweight High Consumers on Cardiometabolic Risk Factors
Study Start Date : October 2011
Primary Completion Date : April 2014
Study Completion Date : April 2014

Arms and Interventions

Arm Intervention/treatment
Experimental: artificially sweetened beverages
subjects will be required to consume only artificially-sweetened sodas, water, tea or coffee
Other: artificially sweetened sodas
subjects will be allowed unlimited consumption of calorie-free, artificially-sweetened sodas, water, tea or coffee
No Intervention: regular sodas
subjects will continue their usual consumption of sweetened sodas

Outcome Measures

Primary Outcome Measures :
  1. changes in intrahepatic fat concentration [ Time Frame: at the end of run-in and after 12 weeks intervention/control ]
    intrahepatic fat content measured by 1H-MRS

Secondary Outcome Measures :
  1. changes in visceral fat volume [ Time Frame: at the end of run-in and after 12 weeks of intervention/control ]
    Visceral fat volume measured by MRI

  2. changes in day-long metabolic profile [ Time Frame: at the end of run-in and after 12 weeks of intervention/control ]
    Plasma glucose, insulin, non-esterified fatty acids, and triglycerides will be measured at 2-hourly intervals between 7:00 am and 5:00 pm. Participants will be fed standardized meals and either sweetened or artificially-sweetened beverages according to randomization

  3. changes in food intake from baseline [ Time Frame: at the end of the run-in period and after 6, and 12 weeks of intervention/control ]
    Total energy intake, total carbohydrate intake, and total sugars intake will be evaluated by 3-day food record

Eligibility Criteria

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Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • gender male or female
  • body mass index (BMI) > 27 kg/m2 consumption of > 2 3dl-can regular soda/day
  • low to moderate physical activity (< 60 min walking/day; < 3 exercise session/week

Exclusion Criteria:

  • diabetes mellitus
  • liver, kidney or heart disease
  • any current drug treatment
  • contra-indications to MR examination (pacemaker, foreign bodies,etc)
  • pregnancy or planned pregnancy
  • active weight gain or weight loss (weight change > 4 kg in the past 12 months)
  • consumption of drugs or illicit substances
  • consumption of more than 10g alcohol/day
  • vegetarians or subjects on special diets
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01394380

Clinical Research Center, CHUV
Lausanne, VD, Switzerland, CH-1011
Sponsors and Collaborators
University of Lausanne
Centre Hospitalier Universitaire Vaudois
University Hospital Inselspital, Berne
Principal Investigator: Luc Tappy, MD Department of Physiology, University of Lausanne
More Information

Responsible Party: Luc Tappy, MD, professor of physiology, University of Lausanne
ClinicalTrials.gov Identifier: NCT01394380     History of Changes
Other Study ID Numbers: 171/11
First Posted: July 14, 2011    Key Record Dates
Last Update Posted: June 4, 2014
Last Verified: June 2014

Keywords provided by Luc Tappy, MD, University of Lausanne:
sweetened beverages
hepatic steatosis
visceral obesity
metabolic syndrome

Additional relevant MeSH terms:
Metabolic Syndrome X
Insulin Resistance
Glucose Metabolism Disorders
Metabolic Diseases
Lipid Metabolism Disorders