Copeptin in the Diagnosis of Post-operative Insipidus Diabetes After Pituitary Surgery (Copeptin-surg)

June 11, 2024 updated by: CHU de Reims

Interest of the Copeptine Dosage in Diagnosis of Post-operative Insipidus Diabetes After Transsphenoidal Pituitary Surgery

Endoscopic trans-sphenoidal pituitary endoscopic surgery is one of the main axes of management of tumours of the sellar region.

Central diabetes insipidus is a frequent complication of endoscopic trans-sphenoidal pituitary endoscopic surgery, with a prevalence of up to 30% of cases. It is the consequence of insufficient secretion of the anti-diuretic hormone arginine vasopressin (AVP) by the posterior pituitary (Melmed et al, 2017).

In the absence of specific treatment, diabetes insipidus can lead to severe ionic and osmotic disorders, mainly acute dehydration with the risk of severe consequences particularly neurological.

Monitoring for the appearance of diabetes insipidus is therefore necessary from the immediate post-operative period.

To date, diabetes insipidus is initially suspected before the appearance of major polyuria. Several biological assays (urinary density, natraemia, urinary osmolarity and plasma) can help to confirm the diagnosis, but the sensitivity and specificity of these biomarkers remains quite low for this indication.

The determination of MVA is difficult because this hormone is unstable ex vivo. To date, its use in current practice remains complicated.

MVA and copeptin are derived from the same precursor and are therefore co-secreted by the pituitary gland in equimolar proportions.

Copeptin has a relatively short in vivo half-life of about 25 minutes, as does MVA, but is more stable in vitro when blood has been drawn.

Its use in the early diagnosis of diabetes insipidus after pituitary surgery could therefore be of interest.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Objective is to study the interest of copeptin dosage as an early predictive marker for the diagnosis of post-operatice diabetes insipidus in trans-sphenoidal endoscopic pituitary surgery.

Study Type

Interventional

Enrollment (Actual)

57

Phase

  • Not Applicable

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

  • France
      • Reims, France
        • Damien JOLLY

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

inclusion criteria : adult patient patient undergoing pituitary surgery for tumour of the sellar region patient consenting to participate to the study patient enrolled in the national healthcare insurance program

exclusion criteria : Patient with preoperative diabetes insipidus. Patient undergoing pituitary surgery for suspicion of craniopharyngioma Patient undergoing pituitary surgery for pituitary metastases Patient under 18 years

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: adults with trans-sphenoidal endoscopic pituitary surgery
adult with trans-sphenoidal endoscopic pituitary surgery for tumour of the sellar region
Other: Blood sample
Blood sample to quantify copeptin

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Copeptin dosage
Time Frame: Day 1
Immunoluminometric assay TRACE of the copeptin in pmol/l (Thermofischer)
Day 1

Collaborators and Investigators

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

Sponsor

CHU de Reims

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)

January 3, 2022

Primary Completion (Actual)

March 18, 2024

Study Completion (Actual)

March 18, 2024

Study Registration Dates

First Submitted

March 26, 2020

First Submitted That Met QC Criteria

March 26, 2020

First Posted (Actual)

March 30, 2020

Study Record Updates

Last Update Posted (Actual)

June 13, 2024

Last Update Submitted That Met QC Criteria

June 11, 2024

Last Verified

June 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PA20033

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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