Metabolic Effects of Non-Nutritive Sweeteners
Public ClinicalTrials.gov record NCT01200940. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Background: \- Artificial sweeteners, such as sucralose (brand name Splenda), are very commonly found in products such as diet soft drinks. Recently, researchers learned that these sweeteners may affect hormones in the body, especially when they are consumed in combination with real sugar. Changes in hormone levels may, in turn, result in changes in blood sugar, appetite, and weight. Researchers are interested in studying the effects of artificial sweeteners on the metabolism and hormonal levels of healthy volunteers. Objectives: * To study the effects that artificial sweeteners have on hormone levels, blood sugar, and appetite. * To evaluate whether artificial sweeteners change the rate at which food passes out of the stomach into the gut, or the rate at which the body absorbs sugar from the gut. * To evaluate the effects that different amounts of artificial sweeteners have on hormone levels. Eligibility: \- Healthy volunteers between 18 and 45 years of age. Design: * This study will require one screening visit and four testing visits, scheduled on different days. * At the screening visit, eligible participants will be screened with a physical examination, medical history, blood samples, and body measurements (including height, weight, body circumferences, and skin folds). Participants will also be asked about how much artificial sweetener they typically consume and will have taste tests, in which a small amount of flavored liquid is placed on the tongue and participants will name the flavor and rate its intensity. * Participants will have four glucose tolerance tests on four different days. In preparation for the test, participants will not eat or drink anything but water for 12 hours prior to the test. Blood will be drawn before the test, and participants will drink one of the following study liquids, selected at random: * Plain water * Water mixed with sucralose (the amount found in one 12 oz diet soft drink) * Water mixed with sucralose (the amount found in 2.5 12 oz diet soft drinks) * Water mixed with sucralose (the amount found in 3.7 12 oz diet soft drinks) * Ten minutes after drinking the study liquid, participants will have a sugary drink that will allow researchers to measure sugar absorption and the speed with which food leaves the stomach. * In addition, participants will complete questionnaires about hunger levels before drinking the sugar solution and at regular intervals for 2 hours afterward. Blood samples will be taken at regular intervals as well.
Study identification
- NCT ID
- NCT01200940
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1, Phase 2
- Enrollment
- 118 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 6 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 3, 2010
- Primary completion
- Mar 1, 2017
- Completion
- Mar 29, 2017
- Last update posted
- Jan 21, 2021
2010 – 2017
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center, 9000 Rockville Pike | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01200940, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 21, 2021 · Synced Sep 1, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01200940 live on ClinicalTrials.gov.