Exploring the Effects of Diazepam and Lorazepam
Summary
Aims :
- exploring lorazepam (0.038 mg/kg) effects, after a single oral intake, in healthy volunteers, on the neural correlates of encoding and retrieval of information during a word-stem completion task (implicit memory), using fMRI
- comparing lorazepam effects to diazepam (0.3 mg/kg)effects
- exploring benzodiazepines effects, after a single oral intake, on the neural correlates of successful encoding of information within explicit memory using fMRI
Hypothesis :
- both diazepam and lorazepam will impair explicit memory performance, but lorazepam only will impair perceptual priming
- lorazepam and diazepam will modify the normal correlates of information encoding within explicit memory
- lorazepam only will alter the neural correlates of perceptual priming
Study Design
Allocation: Randomized, Control: Placebo Control, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator)
Conditions
Healthy Subjects
Intervention
Diazepam, Lorazepam, placebo
Location
Clinique psychiatrique, hôpital civil
Strasbourg
France
67091
Status
Completed
Source
University Hospital, Strasbourg, France
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00696033
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Therapeutic Misconception
Misunderstanding among individuals, frequently research subjects, of scientific methods such as randomization and placebo controls.
Nordazepam
An intermediate in the metabolism of DIAZEPAM to OXAZEPAM. It may have actions similar to those of diazepam.
Diazepam Binding Inhibitor
An 86-amino acid polypeptide, found in central and peripheral tissues, that displaces diazepam from the benzodiazepine recognition site on the gamma-aminobutyric acid receptor (RECEPTORS, GABA). It also binds medium- and long-chain acyl-CoA esters and serves as an acyl-CoA transporter. This peptide regulates lipid metabolism.
Textbooks
Books intended for use in the study of specific subjects, containing systematic presentation of the principles and essential knowledge of the subjects.
Matched-pair Analysis
A type of analysis in which subjects in a study group and a comparison group are made comparable with respect to extraneous factors by individually pairing study subjects with the comparison group subjects (e.g., age-matched controls).
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