NCT02720393

Brief Summary

Participants will be randomly assigned to either regular or no-carrageenan prepared diets to determine whether the no-carrageenan leads to improvement in glucose tolerance. Hemoglobin A1c is the primary outcome measure.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2016

Typical duration 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

February 1, 2016

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

February 9, 2016

Completed
2 months until next milestone

First Posted

Study publicly available on registry

March 25, 2016

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
Last Updated

September 30, 2019

Status Verified

September 1, 2019

Enrollment Period

2.8 years

First QC Date

February 9, 2016

Last Update Submit

September 26, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in hemoglobin A1c

    Measurements performed after 12 weeks of dietary intervention

    baseline, 12 weeks

Secondary Outcomes (6)

  • Change in serum Interleukin-8

    baseline, 12 weeks

  • Impact on glucose tolerance test

    12 weeks

  • Impact on insulin level

    12 weeks

  • Change in leukocyte subsets

    baseline, 12 weeks

  • Change in Tumor Necrosis Factor-alpha in serum

    baseline, 12 weeks

  • +1 more secondary outcomes

Other Outcomes (2)

  • Change in fecal microbiome

    baseline, 12 weeks

  • Change in fecal calprotectin

    baseline, 12 weeks

Study Arms (2)

Regular diet

PLACEBO COMPARATOR

Meals and snacks will contain carrageenan in the amount consumed in the typical daily diet and will be selected by the study dietician and distributed to study subjects randomized to the regular diet study arm.

Other: Regular Diet

No-carrageenan diet

EXPERIMENTAL

No-carrageenan diet will be composed of meals and snacks selected by the study dietician and distributed to study participants who are randomized to the no-carrageenan diet study arm.

Other: No-carrageenan diet

Interventions

Diet of food items that have no carrageenan as selected by study dietician.

No-carrageenan diet

Diet of food items that have carrageenan as selected by study dietician

Also known as: Carrageenan-containing diet
Regular diet

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • per diabetes, ability to follow diet and study procedures

You may not qualify if:

  • on any medications that affect glucose, medical conditions or allergies that affect adherence to study diet, pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Illinois at Chicago

Chicago, Illinois, 60612, United States

Location

MeSH Terms

Conditions

Prediabetic State

Interventions

Diet

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Nutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological Phenomena

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

February 9, 2016

First Posted

March 25, 2016

Study Start

February 1, 2016

Primary Completion

December 1, 2018

Study Completion

December 1, 2018

Last Updated

September 30, 2019

Record last verified: 2019-09

Locations