Study of Metabolic Effects of Pregnancy in Women With Cystic Fibrosis

OBJECTIVES: I. Compare the clinical status of pregnant vs non-pregnant women with cystic fibrosis.

II. Determine glucose tolerance during each trimester of pregnancy in these women.

III. Evaluate peripheral insulin sensitivity in these women. IV. Evaluate whole body protein turnover and hepatic glucose production in these women.

V. Determine resting energy expenditure in these women.

Study Overview

Status

Terminated

Conditions

Detailed Description

PROTOCOL OUTLINE: Patients undergo a glucose tolerance test over 3 hours and a potassium body scan on day 1. Patients undergo an indirect calorimetry over 20 minutes on day 2. Patients receive stable-labeled leucine and stable-labeled glucose IV over 3 hours followed by insulin and glucose IV over 4-4.5 hours on day 2 using the hyperinsulinemic euglycemic clamp technique.

Blood and breath samples are collected to measure glucose tolerance, peripheral insulin sensitivity, and whole body protein turnover. Hepatic glucose production is measured by mass spectrophotometry.

Patients maintain a 3-day food journal before pregnancy, during each trimester, and after pregnancy.

Patients undergo each study during the final 2 weeks of each trimester of pregnancy and then at 6 months post-partum.

Study Type

Observational

Enrollment

36

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Utah
      • Salt Lake City, Utah, United States, 84132
        • University of Utah School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 second and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

PROTOCOL ENTRY CRITERIA:

--Disease Characteristics--

  • Diagnosis of cystic fibrosis (CF) and pregnant OR Age, weight, and body mass index matched non-pregnant CF woman or pregnant non-CF woman
  • No infection with Burkholderia cepacia
  • FEV1 at least 60%

--Prior/Concurrent Therapy--

  • At least 3 weeks since prior corticosteroids

--Patient Characteristics--

  • Hepatic: No more than one transaminase level greater than 10% above normal

Other:

Pregnant non-CF controls:

  • No cigarette smokers
  • No history of gestational diabetes mellitus
  • No type 1 or 2 diabetes
  • No other chronic illness

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Collaborators

Investigators

  • Study Chair: Dana S. Hardin, University of Utah

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2001

Study Registration Dates

First Submitted

April 10, 2001

First Submitted That Met QC Criteria

April 10, 2001

First Posted (Estimate)

April 11, 2001

Study Record Updates

Last Update Posted (Estimate)

June 24, 2005

Last Update Submitted That Met QC Criteria

June 23, 2005

Last Verified

March 1, 2002

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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