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CompletedNCT04579939Updated Jan 20, 2022

Oral Glucose Tolerance Testing Using Candy for Cystic Fibrosis

An interventional study of Candy Glucose Tolerance Test in Cystic Fibrosis, sponsored by Mayo Clinic. Completed at 1 site in United States. Open to participants aged 10 Years to 21 Years. Per ClinicalTrials.gov, last updated 2022-01-20.

Sponsored by Mayo Clinic · Not applicable, Interventional, and Basic science

Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Not applicable
Ages
10 Years to 21 Years
Sex
All
01

Study summary

The study aims to determine if a popular dextrose candy alternative yields a similar glycemic curve compared to the standard oral Dextrose solution used in the Oral Glucose Tolerance Test.

02

Conditions studied

  • Cystic Fibrosis
03

In context

Cystic Fibrosis

1,581 studies on the registry are indexed under Cystic Fibrosis; 190 are open to participants now.

This study's enrollment of 10 is below the median of 36 across 1,034 interventional studies indexed under Cystic Fibrosis.

Browse Cystic Fibrosis studies →

Lead sponsor

Mayo Clinic is the lead sponsor of 3,218 studies on the registry; 669 are open to participants now.

Of its 445 completed or terminated interventional studies of FDA-regulated products, 313 (70%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
10 Years to 21 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Males and Females ages 10-21 years.
  • Cystic Fibrosis (CF) must be diagnosed.
  • Ability to sign informed consent if they are 18 years or older.
  • Written parental permission if age 10-17 years old.

Exclusion criteria

Exclusion criteria:

  • Active CF flare as determined by the primary CF team .
  • Use of steroids.
  • Inability to tolerate oral feedings.
  • Prior intestinal surgery.
  • Concern for allergy or intolerance to dextrose, fructose, or corn derivatives.
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Experimental
    Experimental

    All 10 participants will go through the experimental arm receiving the dextrose candy oral glucose tolerance test.

    Diagnostic Test: Candy Glucose Tolerance Test

Interventions

  • Diagnostic testCandy Glucose Tolerance Test

    Participants will use a popular dextrose candy alternative to help assess glycemic response.

06

What researchers measure

Primary outcomes

  1. Glycemic Response

    The investigators will obtain glucose values at standard clinical times for oral glucose tolerance testing

    Time frame: Baseline, Day 1

Secondary outcomes

  1. Patient and Parent Satisfaction

    Self-rated satisfaction using the candy alternative will be assessed via survey

    Time frame: Day 2

07

Study locations

1 site
  • Mayo Clinic in Rochester
    Rochester, Minnesota 55905, United States
08

References and documents

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 20, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04579939
Lead sponsor
Mayo Clinic
Responsible party
Ana L. Creo (Principal Investigator, Mayo Clinic) — Principal investigator
First posted
Oct 8, 2020
Start date
Feb 25, 2021
Primary completion
Dec 30, 2021
Completion
Dec 30, 2021
Last update
Jan 20, 2022

Study contacts

Ana Creo, MD
principal investigator · Mayo Clinic

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2022. You cannot join it, but the record below documents what was studied.

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Discussion

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