NCT00659035

Brief Summary

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.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
450

participants targeted

Target at P75+ for all trials

Timeline
5mo left

Started Apr 2008

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress98%
Apr 2008Dec 2026

First Submitted

Initial submission to the registry

January 30, 2008

Completed
2 months until next milestone

Study Start

First participant enrolled

April 1, 2008

Completed
15 days until next milestone

First Posted

Study publicly available on registry

April 16, 2008

Completed
18.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

January 8, 2026

Status Verified

January 1, 2026

Enrollment Period

18.7 years

First QC Date

January 30, 2008

Last Update Submit

January 6, 2026

Conditions

Keywords

drivingopioidsimpairmentabilitypatientsreceivingoral morphinesevere

Outcome Measures

Primary Outcomes (1)

  • Weaving, measured as standard deviation of lateral position.

    1 h

Secondary Outcomes (1)

  • Reaction time

    1 h

Study Arms (5)

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

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

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

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.

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.

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Pain Clinic population

You may qualify if:

  • Driving license

You may not qualify if:

  • Any other drug or condition that would impair driving ability
  • History of seizures

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rush University Medical Center

Chicago, Illinois, 60612, United States

Location

MeSH Terms

Conditions

Chronic PainLymphoma, Follicular

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsLymphoma, Non-HodgkinLymphomaNeoplasms by Histologic TypeNeoplasmsLymphoproliferative DisordersLymphatic DiseasesHemic and Lymphatic DiseasesImmunoproliferative DisordersImmune System Diseases

Study Officials

  • Asokumar Buvanendran, MD

    Rush University Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Attending Physician, Associate Professor

Study Record Dates

First Submitted

January 30, 2008

First Posted

April 16, 2008

Study Start

April 1, 2008

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

January 8, 2026

Record last verified: 2026-01

Locations