Non-intrusive Detection of Temporary Neurologic Impairment by Opioids

August 3, 2022 updated by: Zxerex Corporation

Prove the Feasibility of a Non-invasive Means to Identify Temporary Neurological Impairment Resulting From the Use of a Commonly Prescribed Opioid by Identifying an Oculomotor Biosignature Associated With Temporary Neurologic Impairment in Pain-free Opioid-naïve Subjects, and to Initiate the Development of Such a Signature.

The investigators aim to prove the feasibility of a non-invasive means to identify temporary neurological impairment resulting from the use of a commonly prescribed opioid by identifying an oculomotor biosignature associated with temporary neurologic impairment in pain-free opioid-naïve subjects, and to initiate the development of such a signature. The investigators also sought to establish the presence of a dose-dependent biosignature for opioid impairment.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

To determine the detrimental effects of opioid intoxication on normal oculomotor function, the investigators will collect data from up to 25 subjects before and during oxycodone induced intoxication. A within-subjects design will be used, and subjects will be tested under conditions of no dose (placebo), low dose, and high dose. Subjects will be tested during 3 sessions (baseline, placebo, oxycodone); separated by 7 days to allow for complete washout of any drug that was administered. Subjects will perform tests of visual fixation, saccade speed and saccade accuracy, cognitive control over saccades, cognitive control over visual scanning, and visual pursuit. Eye movement data will be collected using an SR Research EyeLink 1000 Plus eye tracking system.

Analysis of the data will be performed by comparing each subject state against the baseline measurements, where baseline represents an unimpaired subject state. Based on prior work with marijuana intoxication, the investigators expect that this data and analysis will successfully reveal a constellation of oculomotor dynamics that can be used to classify whether an individual is or is not currently impaired by oxycodone. Based on published studies, the investigators anticipate these changes will generalize across the opioid class, creating a biosignature of opioid impairment.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
17

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Arizona
      • Scottsdale, Arizona, United States, 85260
        • Mayo Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years to 59 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Participants recruited from area local to Scottsdale, Arizona

Description

Inclusion Criteria:

  • Adults between 21 and 59 years of age.
  • Males and females; women must practice an effective form of birth control (condoms, diaphragm, birth control pill, IUD).

Exclusion Criteria:

  • Prior use of any opioids during the preceding 30 days.
  • Positive urine drug test for any drug at any point during the study.
  • Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Participants
  • Adults between 21 and 59 years of age.
  • Males and females; women must practice an effective form of birth control (condoms, diaphragm, birth control pill, IUD).
  • Subjects have taken an opioid prescription for pain management within the prior 24 months and have not used any opioids during the preceding 30 days.
  • Subjects are required to have a negative urine drug test. At any point during the study, If a subject is found to have a positive drug test, the subject will be discontinued from the study.
Drug: Oxycodone
Oxycodone in 5mg increments up to a maximum of 10mg

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Eye movement velocity
Time Frame: 1 hour post-dose for 3 hours across 3 sessions, minimum 48 hours between sessions.
Eye position over time is recorded and tracked using a specialized eye-tracking camera system during a battery of visual tests under control and oxycodone challenge conditions. This data is converted to a velocity measure as millimeters per second (mm/second) and then converted to an angular velocity as degrees of visual angle per second (dva/second).
1 hour post-dose for 3 hours across 3 sessions, minimum 48 hours between sessions.
Pupil area change
Time Frame: 1 hour post-dose for 3 hours across 3 sessions, minimum 48 hours between sessions.

Changes in pupil area are recorded over time using specialized a eye-tracking camera system.

Screen illumination is abruptly changed from dark to maximum brightness and back while the pupils size is measured. The pupil area is represented in the units millimeters squared (mm^2).
1 hour post-dose for 3 hours across 3 sessions, minimum 48 hours between sessions.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Zxerex Corporation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 28, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 29, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 29, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 26, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 3, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 5, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 5, 2022

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 3, 2022

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • OpioidsPhaseI

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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