Viewing Study NCT00245661



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Last Modification Date: 2024-10-26 @ 9:20 AM
Study NCT ID: NCT00245661
Status: COMPLETED
Last Update Posted: 2007-11-02
First Post: 2005-10-27

Brief Title: Effects of Temazepam in Patients With Chronic Pulmonary Obstructive Disease
Sponsor: Rijnstate Hospital
Organization: Rijnstate Hospital

Study Overview

Official Title: Effects of Temazepam on Dyspnea Gas Exchange and Sleep Quality in Chronic Obstructive Pulmonary Disease
Status: COMPLETED
Status Verified Date: 2007-10
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: The purpose of this study is to evaluate the effects of temazepam during sleep and in daytime on dyspnea gas exchange and sleep quality in patients with chronic obstructive pulmonary disease

The study hypothesis is that temazepam does not produce any adverse respiratory effects during sleep in patients with COPD In contrast it may result in an beneficiary effect because it positively affects the sleep quality and sleep structure which may result in more alertness and less daytime sleepiness and less dyspnea during the day
Detailed Description: Rationale More than 50 of patients with chronic obstructive pulmonary disease COPD have sleep complaints characterised by longer latency to falling asleep more frequent arousals and awakenings generalised insomnia andor excessive daytime sleepiness Sleep disturbance seems to be more severe with advancing disease and substantially reduces patients quality of life The sleep complaints are due to dyspnea chronic cough sputum production hypoxaemia and hypercapnia during the night One of the available therapies for these patients is the prescription of hypnotics like benzodiazepines However it is thought that in patients with COPD sleep medication may produce adverse respiratory effects due to suppression of the cerebral respiratory drive In our practice we never encounter any adverse respiratory effect of an hypnotic in patients with COPD There have been several trials in COPD patients studying these potentially adverse effects The results of these studies are inconsistent relative older hypnotics are used and there are several methodological limitations Furthermore in none of these studies transcutaneous PCO2 or PO2 was monitored Temazepam is nowadays the sedative of first choice in the medical treatment of sleep complaints

Aim primary studying the effects of temazepam on the respiratory function during daytime and at night in patients with severe COPD Secondary studying the effects of temazepam on the sleep quality and sleep structure and on the objective and subjective sleepiness during daytime and at night in patients with COPD

Study design double blind placebo-controlled cross-over randomised clinical trial

Treatment 10 mg temazepam or placebo during seven consecutive nights

Endpoints Primary difference in PtcCO2 PtcO2 and oxygen saturation during sleep after 1 week temazepam compared to placebo Secondary Respiratory Disturbance Index Desaturation Index and Hypercapnic Ventilatory Response percentage REMnREM-sleep and total effective sleep time Multiple Sleep Latency Test and the Epworth Sleeping Score

Study Oversight

Has Oversight DMC: None
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?: None