Viewing Study NCT00740012


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Study NCT ID: NCT00740012
Status: COMPLETED
Last Update Posted: 2008-09-29
First Post: 2008-08-20
Is NOT Gene Therapy: False
Has Adverse Events: False

Brief Title: Glycemic Rises After Waking Up In Response To An Alarm Clock In Type 1-Diabetic Patients Analysed With Continuous Glucose Monitoring (GlucoDay®)
Sponsor: Diabeteszentrum Bad Lauterberg im Harz
Organization:

Study Overview

Official Title: Blutzucker-Nachtprofile Mit Wecker Und Selbstmessungen gegenüber Fremdmessungen Durch Spezialisiertes Pflegepersonal: Eine Analyse Mittels Kontinuierlichem Glukose-Monitoring (Glucoday®)
Status: COMPLETED
Status Verified Date: 2008-09
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: Study hypothesis: Waking up in response to an alarm clock may evoke a stress reaction that leads to rising glucose concentrations.

The purpose of this study was to prove this hypothesis with continuous glucose monitoring over three nights.

Night (a) with an alarm clock set at 2 h intervals for glucose self monitoring,

Night (b) with a nurse performing blood glucose determinations, and

Night (c) with the patients left undisturbed.
Detailed Description: To provide nocturnal glucose control in patients with type 1 diabetes is a therapeutic challenge. Nocturnal glucose profiles are an important tool to secure adequate glycemic control during the night. Often, patients are asked to perform self-monitoring with the help of an alarm clock. Such a recommendation depends on the accuracy of glucose concentrations determined this way. We hypothesized that alarm clocks may trigger a stressful arousal that might be accompanied by rises in glucose concentrations, consecutively leading to nocturnal glucose profiles that are not representative for undisturbed conditions.

We want to prove this hypothesis with 30 patients over three nights.

Night (a) with an alarm clock set at 2 h intervals (midnight, 2 a.m., 4a.m. and 6:45 a.m) for glucose self monitoring,

Night (b) with a nurse performing blood glucose determinations at the 2 h intervals (midnight, 2 a.m., 4a.m. and 6:45 a.m), and

Night (c) with the patients left undisturbed.

All the patients are going to use a continuous glucose monitor and half of the patients (uneven numbers) are going to have an indwelling venous cannula during night (a) and (b.

During night (a) and (b) 5-7 minutes after the scheduled times for glucose measurements the doctoral candidate is going to take the pulse, another capillary blood sample for a laboratory glucose determination (EBIOS, Eppendorf, Hamburg, Germany). Also the doctoral candidate is going to take a venous blood sample in half of the patients (uneven numbers), blood from the indwelling venous cannula for the determination of epinephrine, norepinephrine, cortisol, glucagon, growth hormone, and prolactin (determined by specific immunoassays at Biocientia laboratories, Jena, Germany).

Study Oversight

Has Oversight DMC: False
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: