Effects of Amitriptyline for the Treatment of Pain on Driving Performance and Cognition.
Summary
The acute and subchronic effects of amitriptyline were compared to placebo in a double-blind crossover randomized study on driving ability and driving-related skills in chronic neuropathic pain patients.It was hypothesized that nocturnally administered 25 mg amitriptyline might affect driving performance negatively after acute, but not after subchronic treatment.
Description
The present study was designed to determine the effects of nocturnally administered 25 mg amitriptyline, compared to placebo, after single (Day 1, acute effects) and repeated (Day 15, subchronic effects) administration on driving performance in neuropathic pain patients. In addition to the on-the-road driving test, laboratory tests measuring driving-related skills were administered. Moreover, effects of amitriptlyine on an attentional capacity task were tested using Event-Related Potentials (ERPs). It was hypothesized that nocturnally administered 25 mg amitriptyline might affect driving performance negatively after acute, but not after subchronic treatment.
Study Design
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety Study, Intervention Model: Crossover Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Conditions
Chronic Neuropathic Pain
Intervention
amitriptyline
Location
University of Utrecht
Utrecht
Netherlands
3508 TB
Status
Terminated
Source
UMC Utrecht
Results (where available)
Links
- Source: http://clinicaltrials.gov/show/NCT00189059
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Receptors, Purinergic P2x4
A widely distributed purinergic P2X receptor subtype that plays a role in pain sensation. P2X4 receptors found on MICROGLIA cells may also play a role in the mediation of allodynia-related NEUROPATHIC PAIN.
Amitriptyline
Tricyclic antidepressant with anticholinergic and sedative properties. It appears to prevent the re-uptake of norepinephrine and serotonin at nerve terminals, thus potentiating the action of these neurotransmitters. Amitriptyline also appears to antagonize cholinergic and alpha-1 adrenergic responses to bioactive amines.
Low Back Pain
Acute or chronic pain in the lumbar or sacral regions, which may be associated with musculo-ligamentous SPRAINS AND STRAINS; INTERVERTEBRAL DISK DISPLACEMENT; and other conditions.
Pain Clinics
Facilities providing diagnostic, therapeutic, and palliative services for patients with severe chronic pain. These may be free-standing clinics or hospital-based and serve ambulatory or inpatient populations. The approach is usually multidisciplinary. These clinics are often referred to as "acute pain services". (From Br Med Bull 1991 Jul;47(3):762-85)
Back Pain
Acute or chronic pain located in the posterior regions of the THORAX; LUMBOSACRAL REGION; or the adjacent regions.
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The objective of the study is to compare the efficacy of gabapentin and amitriptyline for treating neuropathic pain in children in a randomized controlled trial.
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