A Study to Determine if Oral Glucose Tolerance Testing can Improve Screening Compliance in Cystic Fibrosis


About this study

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. Additionally the study aims to determine if substituting the traditional oral dextrose solution used in the Oral Glucose Tolerance Test for a candy alternative yields a higher level of patient satisfaction among children ages 10-21 in the Mayo Clinic Cystic Fibrosis Center. 

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

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:

  • 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.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Ana Creo, M.D.

Open for enrollment

Contact information:

Ana Creo M.D.


More information


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