Last reviewed · How we verify

NCT01888497

Next-Day Residual Effects of Gabapentin, Diphenhydramine and Triazolam on Simulated Driving Performance in Normal Volunteers

Completed Phase 3 Results posted Last updated 21 February 2021
What this trial tests

Phase 3 trial testing Gabapentin in Healthy in 59 participants. Completed in 14 December 2013.

Timeline
29 July 2013
Primary endpoint
14 December 2013
14 December 2013

Quick facts

Lead sponsorPfizer's Upjohn has merged with Mylan to form Viatris Inc.
PhasePhase 3
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designcrossover
Maskingdouble
Primary purposetreatment
Enrollment59
Start date29 July 2013
Primary completion14 December 2013
Estimated completion14 December 2013
Sites4 locations across United States

Drugs / interventions tested

Conditions studied

Sponsor

Pfizer's Upjohn has merged with Mylan to form Viatris Inc. — full company profile →

Who can join

Adults 25 to 55, any sex, with Healthy. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Standard Deviation of Lateral Position (SDLP) Primary · 7.25 hours post-dose

Driving performance assessment for the participants were measured by simulated driving test using Cognitive Research Corporation Driving Simulator (CRCDS-MiniSim). The assessment was performed after 45 minutes of awakening from approximately 6.5 hours of sleep on testing day (after 7.25 hours of study drug administration). SDLP was used to assess driver's ability to track their lane and was the standard deviation of lane positions through the entire drive.

GroupValue95% CI
Placebo33.2± 8.0
Gabapentin34.2± 10.0
Diphenhydramine Citrate35.4± 8.9
Triazolam47.4± 12.0
Speed Deviation Secondary · 7.25 hours post dose

Driving performance assessment for the participants were measured by simulated driving test using Cognitive Research Corporation Driving Simulator (CRCDS-MiniSim). The assessment was performed after 45 minutes of awakening from approximately 6.5 hours of sleep on testing day (after 7.25 hours of study drug administration). Standard deviation of speed was reported in the outcome measure.

GroupValue95% CI
Placebo0.9± 0.3
Gabapentin0.9± 0.3
Diphenhydramine Citrate1.0± 0.3
Triazolam1.3± 0.6
Lane Exceedance Secondary · 7.25 hours post-dose

Driving performance assessment for the participants were measured by simulated driving test using Cognitive Research Corporation Driving Simulator (CRCDS-MiniSim). The assessment was performed after 45 minutes of awakening from approximately 6.5 hours of sleep on testing day (after 7.25 hours of study drug administration). Mean lanes excursed/exceeded was reported in the outcome measure.

GroupValue95% CI
Placebo37.8± 45.9
Gabapentin46.7± 58.5
Diphenhydramine Citrate52.4± 62.0
Triazolam147.7± 113.6

Adverse events — posted to ClinicalTrials.gov

Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Placebo
Serious: 0/58 (0%)
Deaths:
Gabapentin
Serious: 0/55 (0%)
Deaths:
Diphenhydramine Citrate
Serious: 0/57 (0%)
Deaths:
Triazolam
Serious: 0/56 (0%)
Deaths:
Other adverse events (12 terms — click to expand)

ReactionSystemPlaceboGabapentinDiphenhydramine CitrateTriazolam
SomnolenceNervous system disorders
LethargyNervous system disorders
NauseaGastrointestinal disorders
Vision blurredEye disorders
Abdominal pain upperGastrointestinal disorders
Dry mouthGastrointestinal disorders
Sensation of foreign bodyGeneral disorders
Intervertebral disc protrusionMusculoskeletal and connective tissue disorders
DizzinessNervous system disorders
HeadacheNervous system disorders
HypoaesthesiaNervous system disorders
ParaesthesiaNervous system disorders

Data from ClinicalTrials.gov NCT01888497 adverse events section.

Sponsor's own description

This study will examine the next-day residual effects of a nighttime dose of gabapentin 250 mg, diphenhydramine citrate 76 mg and triazolam 0.5 mg compared to placebo and each other on simulated driving performance in normal volunteer subjects. It will also examine other measures of next-day performance and next-day sleepiness.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

Verify or expand the search:

Other trials of Gabapentin

Trials testing the same drug.

Other recruiting trials for Healthy

Currently open trials in the same condition.

Other Pfizer's Upjohn has merged with Mylan to form Viatris Inc. trials

Trials by the same sponsor.

Verify against primary sources

Data sources for this page

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT01888497.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing