- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03447353
Opiates and Benzodiazepines on Driving
SAFER-SIM: Opiates and Benzodiazepines on Driving
The aim of this research is to assess drug effects (Xanax and Norco) on driving performance. Researchers will use the Alertness Memory Profiler (AMP) application to compare results to previous related studies.
This study continues a line of research designed to characterize the effects of common recreationally used prescription and illicit drugs with well known stimulant and sedating effects and their relationship to results from the Alertness Memory Profiler (AMP) that included a set of vigilance and memory tasks.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This study uses EEG, EKG, computerized assessment, blood sampling, and driving simulation.
Individuals recruited will be normal, healthy individuals not currently taking the study drugs. The study will involve five visits, a screening visit as well as four dosing visits. The dosing visits will have a clean (double placebo) and three drugged visits (Xanax and Norco placebo, Xanax placebo and Norco, Xanax and Norco). The screening visit will last about two hours and will include drug and pregnancy testing as well as screening for physical/psychological health. Each of the dosing visits will last approximately five to six hours and will include sleep and food intake surveys, being dosed with study drugs or placebos, AMP assessments, a simulator drive, and wellness surveys. There will also be 4 mL blood sampling before dosing, before driving, and after driving.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
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-
Iowa
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Iowa City, Iowa, United States, 52242
- National Advanced Driving Simulator
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy adult men and women, based on medical and psychological evaluation
- Currently valid unrestricted (except for vision correction) US driver's license
- Licensed driver for at least the past two years
- Drove at least 5000 miles in the past year, by self-report
- Live within a 60 mile radius of NADS
- Available for five study sessions, with one being approximately 2 hours and four being approximately 5-6 hours
- Peripheral veins suitable for repeated venipuncture
- Systolic blood pressure within a clinically normal range (120 ± 30 mmHg) and diastolic blood pressure of 80 ± 20 mmHg
- Good command of written and spoken English
- Female subjects with reproductive potential must agree to use (and/or have their partner use) one (1) acceptable method of birth control beginning at the screening visit throughout the study (including intervals between treatment periods/panels) and until 2 weeks after the last dose of study drug in the last treatment period. Acceptable methods of birth control include the following: intrauterine device (IUD-with or without local hormone release), diaphragm, spermicides, cervical cap, contraceptive sponge, oral contraceptives or condoms. Abstinence is an alternative lifestyle and subjects practicing abstinence may be included in the study.
Exclusion Criteria:
- Requires any special equipment to help drive, such as pedal extensions, hand brake or throttle, spinner wheel knobs, or other non-standard equipment
- Presence of any clinically significant illness, as detected by history, physical examination, and/or laboratory tests, that might influence driving performance (e.g., seizures, sleep apnea, narcolepsy, vertigo, chronic fatigue syndrome) or put the subject at increased risk of adverse events (e.g., cardiac arrhythmia, hypertension)
- If female, pregnant or nursing
- Currently taking drugs that are contraindicated for use with study drugs
- Significant history of motion sickness or demonstrates significant simulator sickness during practice drives at screening (SSQ). Subjects must have scores below the following values on the SSQ: Nausea < 21, Oculomotor <32, Disorientation < 15, and Total Score < 32.
- History of any illness that, in the opinion of the study investigator, might confound the results of the study or pose an additional risk to the subject from study participation
- Prior participation in a driver impairment or distraction-related research study conducted at NADS that uses the same base drive
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: "Sober" or Double Placebo
Subject receives two tablets, both containing placebo
|
Single dose on two of the four study visits, double dose on one of the four study visits
|
Experimental: Active Xanax, Active Norco
Subject receives two tablets, one containing Xanax and one containing Norco
|
Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco
Other Names:
Single dose on two of the four study visits, one in conjunction with 1mg alprazolam
Other Names:
|
Experimental: Active Xanax, Placebo Norco
Subject receives two tablets, one containing Xanax and one containing placebo
|
Single dose on two of the four study visits, double dose on one of the four study visits
Single dose on two of four visits, one in conjunction with 1 tab of 10mg/325mg Norco
Other Names:
|
Experimental: Placebo Xanax, Active Norco
Subject receives two tablets, one containing Norco and one containing placebo
|
Single dose on two of the four study visits, double dose on one of the four study visits
Single dose on two of the four study visits, one in conjunction with 1mg alprazolam
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
SDLP
Time Frame: over course of each simulator drive, approximately 35 minutes per visit
|
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. |
over course of each simulator drive, approximately 35 minutes per visit
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Lane Departures
Time Frame: over course of each simulator drive, approximately 35 minutes per visit
|
Total number of lane departures per drive The total number of lane departures across the drive were analyzed using the SAS GLM procedure. |
over course of each simulator drive, approximately 35 minutes per visit
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Timothy L Brown, Ph.D., National Advanced Driving Simulator at the University of Iowa
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Anti-Inflammatory Agents, Non-Steroidal
- Analgesics, Non-Narcotic
- Anti-Inflammatory Agents
- Antirheumatic Agents
- Antipyretics
- Analgesics, Opioid
- Narcotics
- Tranquilizing Agents
- Psychotropic Drugs
- Hypnotics and Sedatives
- Anti-Anxiety Agents
- GABA Modulators
- GABA Agents
- Respiratory System Agents
- Antitussive Agents
- Acetaminophen
- Alprazolam
- Hydrocodone
- Acetaminophen, hydrocodone drug combination
Other Study ID Numbers
- 201604731
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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