Trial Outcomes & Findings for Opiates and Benzodiazepines on Driving (NCT NCT03447353)

NCT ID: NCT03447353

Last Updated: 2018-09-27

Results Overview

Standard Deviation of Lane Position Standard deviation of lane position was analyzed using the SAS GLM function to identify changes in driver performance. Values represents means across the driving environments studied.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

18 participants

Primary outcome timeframe

over course of each simulator drive, approximately 35 minutes per visit

Results posted on

2018-09-27

Participant Flow

Participant milestones

Participant milestones
Measure
Overall Study
Individuals who completed the study completed all four arms of the study and the data is aggregated. Subjects who did not complete the study may have completed one arm and their data is not included in the analysis. There was a screening visit and four study visits where the subject arrived at the National Advanced Driving Simulator. At each study visit, subjects received one of the following four dosing regimens: double placebo or "Sober"; active Xanax with active Norco, active Xanax and placebo Norco, and placebo Xanax and active Norco.
Overall Study
STARTED
18
Overall Study
COMPLETED
8
Overall Study
NOT COMPLETED
10

Reasons for withdrawal

Reasons for withdrawal
Measure
Overall Study
Individuals who completed the study completed all four arms of the study and the data is aggregated. Subjects who did not complete the study may have completed one arm and their data is not included in the analysis. There was a screening visit and four study visits where the subject arrived at the National Advanced Driving Simulator. At each study visit, subjects received one of the following four dosing regimens: double placebo or "Sober"; active Xanax with active Norco, active Xanax and placebo Norco, and placebo Xanax and active Norco.
Overall Study
Failure at Screening Visit
2
Overall Study
Lost to Follow-up
4
Overall Study
Scheduling Conflicts
3
Overall Study
Withdrew - Nausea Study V1, Sim Drive
1

Baseline Characteristics

Opiates and Benzodiazepines on Driving

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
All Study Participants
n=8 Participants
All participants were randomized to receive all interventions. "Sober" or Double Placebo: Participant receives two tablets, both containing placebo. Active Xanax, Active Norco: Participant receives two tablets, one containing Xanax and one containing Norco Active Xanax, Placebo Norco: Participant receives two tablets, one containing Xanax and one containing placebo Placebo Xanax, Active Norco: Participant receives two tablets, one containing Norco and one containing placebo Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits Xanax 1Mg Tablet: Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco Norco 10Mg-325Mg Tablet: Single dose on two of the four study visits, one in conjunction with 1mg alprazolam
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
n=5 Participants
Age, Categorical
>=65 years
0 Participants
n=5 Participants
Sex: Female, Male
Female
4 Participants
n=5 Participants
Sex: Female, Male
Male
4 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
Race (NIH/OMB)
White
6 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
8 participants
n=5 Participants

PRIMARY outcome

Timeframe: over course of each simulator drive, approximately 35 minutes per visit

Population: For the purposes of analysis, the individual interventions are broken down to observe differences. Each of the 8 participants experienced the 4 interventions, in varying order, so each intervention will have 8 overall participants analyzed.

Standard Deviation of Lane Position Standard deviation of lane position was analyzed using the SAS GLM function to identify changes in driver performance. Values represents means across the driving environments studied.

Outcome measures

Outcome measures
Measure
"Sober" or Double Placebo
n=8 Participants
Subject receives two tablets, both containing placebo Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits
Active Xanax, Active Norco
n=8 Participants
Subject receives two tablets, one containing Xanax and one containing Norco Xanax 1Mg Tablet: Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco Norco 10Mg-325Mg Tablet: Single dose on two of the four study visits, one in conjunction with 1mg alprazolam
Active Xanax, Placebo Norco
n=8 Participants
Subject receives two tablets, one containing Xanax and one containing placebo Xanax 1Mg Tablet: Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits
Placebo Xanax, Active Norco
n=8 Participants
Subject receives two tablets, one containing Norco and one containing placebo Norco 10Mg-325Mg Tablet: Single dose on two of the four study visits, one in conjunction with 1mg alprazolam Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits
SDLP
35.2 centimeters
Standard Deviation 11.1
49.8 centimeters
Standard Deviation 21.0
50.0 centimeters
Standard Deviation 25.3
33.5 centimeters
Standard Deviation 9.5

SECONDARY outcome

Timeframe: over course of each simulator drive, approximately 35 minutes per visit

Population: For the purposes of analysis, the individual interventions are broken down to observe differences. Each of the 8 participants experienced the 4 interventions, in varying order, so each intervention will have 8 overall participants analyzed.

Total number of lane departures per drive The total number of lane departures across the drive were analyzed using the SAS GLM procedure.

Outcome measures

Outcome measures
Measure
"Sober" or Double Placebo
n=8 Participants
Subject receives two tablets, both containing placebo Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits
Active Xanax, Active Norco
n=8 Participants
Subject receives two tablets, one containing Xanax and one containing Norco Xanax 1Mg Tablet: Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco Norco 10Mg-325Mg Tablet: Single dose on two of the four study visits, one in conjunction with 1mg alprazolam
Active Xanax, Placebo Norco
n=8 Participants
Subject receives two tablets, one containing Xanax and one containing placebo Xanax 1Mg Tablet: Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits
Placebo Xanax, Active Norco
n=8 Participants
Subject receives two tablets, one containing Norco and one containing placebo Norco 10Mg-325Mg Tablet: Single dose on two of the four study visits, one in conjunction with 1mg alprazolam Placebo Oral Tablet: Single dose on two of the four study visits, double dose on one of the four study visits
Lane Departures
23.8 count
Standard Deviation 9.0
72.0 count
Standard Deviation 38.2
64.4 count
Standard Deviation 29.4
22.3 count
Standard Deviation 9.5

Adverse Events

"Sober" or Double Placebo

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Active Xanax, Active Norco

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Active Xanax, Placebo Norco

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Placebo Xanax, Active Norco

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Timothy Brown

National Advanced Driving Simulator, University of Iowa

Phone: 3193354785

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place