Use of Driving Tests to Evaluate Patient Performance on Oral Opioids

NCT ID: NCT00659035

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

450 participants

Study Classification

OBSERVATIONAL

Study Start Date

2008-04-30

Study Completion Date

2026-12-31

Brief Summary

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Many patients seen at Pain Centers are advised not to drive if they are on long-term opioid medications. Although such advice is routinely given considering patients' safety, unnecessary restrictions to driving can cause inconvenience to the patients and delay their treatment. Such restrictions also pose social and legal questions to patients and physicians.

The investigators would like to test such patients' ability to drive under oral opioids using a driving simulator at the Pain Center. This simulator is like a video game with computer and a steering wheel to simulate real life driving. The driving simulator provides measure on several outcome measures, such as attention, reaction time, etc. allowing us to specifically address question pertaining to any cognitive or behavioral differences.

Detailed Description

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Many patients seen at Pain Centers are advised not to drive if they are on long-term opioid medications. Although such advice is routinely given considering patients' safety, unnecessary restrictions to driving can cause inconvenience to the patients and delay their treatment. Such restrictions also pose social and legal questions to patients and physicians.

The investigators would like to test such patients' ability to drive under oral opioids using a driving simulator at the Pain Centre. This simulator is like a video game with computer and a steering wheel to simulate real life driving. The driving simulator provides measure on several outcome measures, such as attention, reaction time, etc. allowing us to specifically address question pertaining to any cognitive or behavioral differences.

A pilot phase, for feasibility, included 80 subjects. This phase will include a comparison with a random selection of 450 patients receiving one of the following 5 treatments:

Group 1 (IT): Subjects receiving 1-10 mg/day of morphine or its equivalent doses of opioid medications through intrathecal route. Intrathecal medications are administered through a catheter in spinal cord

Group 2 (Oral): Subjects receiving oral opioids (morphine, oxycodone, hydrocodone, methadone), but not also receiving anticonvulsants (gabapentin, pregabalin, topiramate), muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK

Group 3 (Oral + Anticonvulsant): Subjects receiving oral opioids (morphine, oxycodone, hydrocodone, methadone) and anticonvulsants (gabapentin, pregabalin, topiramate), but not also receiving muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK

Group 4 (Control -Pain) Subject not receiving opioid medications, anticonvulsants (gabapentin, pregabalin, topiramate), muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK.

Group 5 (Control -No Pain) Age-matched volunteers (NO PAIN) not receiving opioid medications, anticonvulsants (gabapentin, pregabalin, topiramate), muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK.

First group has 50 patients and the rest will have 100 patients each.

Conditions

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Chronic Pain

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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IT

Subjects receiving 1-10 mg/day of morphine or its equivalent doses of opioid medications through intrathecal route. Intrathecal medications are administered through a catheter in spinal cord

No interventions assigned to this group

Oral

Subjects receiving oral opioids (morphine, oxycodone, hydrocodone, methadone), but not also receiving anticonvulsants (gabapentin, pregabalin, topiramate), muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK

No interventions assigned to this group

Oral + Anticonvulsant

Subjects receiving oral opioids (morphine, oxycodone, hydrocodone, methadone) and anticonvulsants (gabapentin, pregabalin, topiramate), but not also receiving muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK

No interventions assigned to this group

Control -Pain

Subject not receiving opioid medications, anticonvulsants (gabapentin, pregabalin, topiramate), muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK.

No interventions assigned to this group

Control -No Pain

Age-matched volunteers (NO PAIN) not receiving opioid medications, anticonvulsants (gabapentin, pregabalin, topiramate), muscle relaxants, benzodiazepines, or diphenylhydramine for at least a week before testing; low dose antidepressants and/or NSAIDs are OK.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Driving license

Exclusion Criteria

* Any other drug or condition that would impair driving ability
* History of seizures
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Asokumar Buvanendran

OTHER

Sponsor Role lead

Responsible Party

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Asokumar Buvanendran

Attending Physician, Associate Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Asokumar Buvanendran, MD

Role: PRINCIPAL_INVESTIGATOR

Rush University Medical Center

Locations

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Rush University Medical Center

Chicago, Illinois, United States

Site Status

Countries

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United States

Other Identifiers

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ABuv111407

Identifier Type: -

Identifier Source: org_study_id

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