Pituitary Functions After Traumatic Brain Injury (TBI) and/or Subarachnoid Hemorrhage (SAH)

Prospective Longitudinal Study on Pituitary Functions After TBI and/or SAH

This study performs assessments of pituitary functions by basal hormone levels in the acute phase after TBI and/or SAH followed by detailed endocrine tests (insulin-induced hypoglycemia or growth hormone releasing hormone-arginine-corticotropin releasing hormone-leuteinizing hormone releasing hormone [GHRH-arginine-CRH-LHRH] test) after 4 and 12 months.

Study Overview

Detailed Description

Recent data have demonstrated that hypopituitarism seems to be a frequent finding after traumatic brain injury (TBI) and/or subarachnoid hemorrhage (SAH). However, most of these studies referred to retrospective evaluations. There are only few prospective data, and no longitudinal study routinely taking into account the assessment of anterior pituitary function in the acute phase after TBI or SAH so far.

We prospectively evaluate pituitary functions in patients in the acute phase after TBI or SAH and a control group of patients with trauma not involving the brain. Endocrine data included basal anterior pituitary lobe hormone, IGF-1 and testosterone serum levels (Immulite 2000) within the first 8 hours after TBI or SAH. Further endocrine evaluation was performed by means of either a combined GHRH-arginine-CRH-LHRH test or an insulin-induced hypoglycemia test after 4 months and 12 months. To rule out an assay related bias with regard to GH and IGF-1, all hormone levels were cross-checked by a supersensitive assay in another laboratory.

Study Type

Observational

Enrollment (Actual)

100

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

      • Erlangen, Germany, 91054
        • Department of Neurosurgery, University of Erlangen

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

15 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • TBI or SAH
  • Control group: injury without involvement of the brain/skull

Exclusion Criteria:

  • Pregnancy

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

  • Observational Models: Other
  • Time Perspectives: Prospective

Collaborators and Investigators

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

Collaborators

Investigators

  • Study Chair: Michael Buchfelder, M.D., Ph.D., Department of Neurosurgery, University of Erlangen
  • Principal Investigator: Juergen Kreutzer, M.D., Department of Neurosurgery, University of Erlangen
  • Principal Investigator: Christioph Schöfl, M.D., Ph.D., Department of Neurosurgery, Division Neuroendocrinology, University of Erlangen
  • Principal Investigator: Andrea Kleindienst, M.D., Department of Neurosurgery, University of Erlangen

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 (Actual)

September 1, 2006

Primary Completion (Actual)

November 1, 2008

Study Completion (Actual)

November 1, 2008

Study Registration Dates

First Submitted

July 24, 2007

First Submitted That Met QC Criteria

July 24, 2007

First Posted (Estimate)

July 25, 2007

Study Record Updates

Last Update Posted (Actual)

December 14, 2020

Last Update Submitted That Met QC Criteria

December 10, 2020

Last Verified

December 1, 2020

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.

Clinical Trials on Traumatic Brain Injury

3
Subscribe