Enhancing Exercise and Psychotherapy to Treat Pain and Addiction in Adults With an Opioid Use Disorder (EXPO; R33 Phase) (EXPO-R33)

March 20, 2026 updated by: Nora Nock, Case Western Reserve University

Enhancing Exercise and Psychotherapy to Treat Pain and Addiction in Adults With an Opioid Use Disorder (EXPO): A Randomized Trial (R33 Phase)

This work will involve conducting a randomized trial that will evaluate preliminary efficacy of "assisted" rate cycling, voluntary rate cycling and psychotherapy for pain individually and in combination as adjunctive treatments on cravings (primary outcome) in adults with an opioid use disorder. The investigators will also evaluate the effects of "assisted" rate cycling, voluntary rate cycling and I-STOP on secondary outcomes including depression, anxiety and sleep.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

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.

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.
Interventional

Enrollment (Estimated)

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.
198

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.
  • Name: Nora L. Nock, PhD
  • Phone Number: 216-368-5653
  • Email: nln@case.edu

Study Locations

  • United States
    • Colorado
      • Denver, Colorado, United States, 80217
        • University of Colorado at Denver
    • Ohio
      • Cleveland, Ohio, United States, 44106
        • Case Western Reserve University

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

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 18 to 65 years old
  • Must be enrolled in a residential/inpatient drug treatment program at a collaborating drug treatment center
  • Must be diagnosed with an Opioid Use Disorder (OUD; ICD-10 F11.20) or a Poly-substance Drug Use that includes an opioid component (ICD-10,F19.xx)
  • Must have self-reported pain or a pain condition describing a non-cancer related chronic pain disorder
  • Must be approved to exercise in the study by the drug treatment center (Medical Director, physician or other relevant clinical staff or primary care physician (PCP))

Exclusion Criteria:

  • Any substantive contraindications to exercise
  • Psychiatrically unstable
  • Pregnant women
  • Non-English speaking adults
  • Adults unable to provide informed written consent

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

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
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.
Experimental: Assisted Exercise and I-STOP
Participants randomized to "Assisted Exercise" will exercise on a special bike that assists them to pedal faster than they do voluntarily on their own ("assisted" exercise bike). Participants who are randomized to receive I-STOP will receive the "Self-regulation Treatment for Opioid addiction and Pain" (STOP) program modified for inpatients/residential drug treatment (I-STOP).
Other: Exercise
Participants who are randomized to exercise will be perform exercise on stationary bikes. Participants randomized to "Voluntary Exercise" will exercise on a standard stationary bike where they will pedal at their voluntary rates. Participants randomized to "Assisted Exercise" will exercise on a special bike that assists them to pedal faster than they do voluntarily on their own ("assisted (exercise) bike").
Behavioral: Psychotherapy Pain and Addiction (I-STOP)
Participants who are randomized to receive I-STOP will receive the "Self-regulation Treatment for Opioid addiction and Pain" (STOP) program modified for inpatients/residential drug treatment (I-STOP). I-STOP uses empirically validated pain psychotherapy approaches targeted to patients with an OUD using psycho-physiological self-regulation components and biofeedback with "Bio-dots".
Experimental: Voluntary Exercise and I-STOP
Participants randomized to "Voluntary Exercise" will exercise on a standard stationary bike where they will pedal at their voluntary rates. Participants who are randomized to receive I-STOP will receive the "Self-regulation Treatment for Opioid addiction and Pain" (STOP) program modified for inpatients/residential drug treatment (I-STOP).
Other: Exercise
Participants who are randomized to exercise will be perform exercise on stationary bikes. Participants randomized to "Voluntary Exercise" will exercise on a standard stationary bike where they will pedal at their voluntary rates. Participants randomized to "Assisted Exercise" will exercise on a special bike that assists them to pedal faster than they do voluntarily on their own ("assisted (exercise) bike").
Behavioral: Psychotherapy Pain and Addiction (I-STOP)
Participants who are randomized to receive I-STOP will receive the "Self-regulation Treatment for Opioid addiction and Pain" (STOP) program modified for inpatients/residential drug treatment (I-STOP). I-STOP uses empirically validated pain psychotherapy approaches targeted to patients with an OUD using psycho-physiological self-regulation components and biofeedback with "Bio-dots".
Experimental: Assisted Exercise and No I-STOP
Participants randomized to "Assisted Exercise" will exercise on a special bike that assists them to pedal faster than they do voluntarily on their own ("assisted" exercise bike). Participants randomized to "No I-STOP" will not receive the psychotherapy for pain and addiction but will receive their standard behavioral treatment as usual (TAU).
Other: Exercise
Participants who are randomized to exercise will be perform exercise on stationary bikes. Participants randomized to "Voluntary Exercise" will exercise on a standard stationary bike where they will pedal at their voluntary rates. Participants randomized to "Assisted Exercise" will exercise on a special bike that assists them to pedal faster than they do voluntarily on their own ("assisted (exercise) bike").
Experimental: Voluntary Exercise and No I-STOP
Participants randomized to "Voluntary Exercise" will exercise on a standard stationary bike where they will pedal at their voluntary rates. Participants randomized to "No I-STOP" will not receive the psychotherapy for pain and addiction but will receive their standard behavioral treatment as usual (TAU).
Other: Exercise
Participants who are randomized to exercise will be perform exercise on stationary bikes. Participants randomized to "Voluntary Exercise" will exercise on a standard stationary bike where they will pedal at their voluntary rates. Participants randomized to "Assisted Exercise" will exercise on a special bike that assists them to pedal faster than they do voluntarily on their own ("assisted (exercise) bike").
Experimental: No Exercise and I-STOP
Participants randomized to receive "No Exercise" will not receive structured "assisted" or voluntary rate cycling exercise. Participants randomized to "No I-STOP" will not receive the psychotherapy for pain and addiction but will receive their standard behavioral treatment as usual (TAU).
Behavioral: Psychotherapy Pain and Addiction (I-STOP)
Participants who are randomized to receive I-STOP will receive the "Self-regulation Treatment for Opioid addiction and Pain" (STOP) program modified for inpatients/residential drug treatment (I-STOP). I-STOP uses empirically validated pain psychotherapy approaches targeted to patients with an OUD using psycho-physiological self-regulation components and biofeedback with "Bio-dots".
No Intervention: No Exercise and No I-STOP
Participants randomized to receive "No Exercise" will not receive structured "assisted" or voluntary rate cycling exercise. Participants randomized to "No I-STOP" will not receive the psychotherapy for pain and addiction but will receive their standard behavioral treatment as usual (TAU).

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
Drug cravings
Time Frame: Change from baseline to intervention program completion, an average of 8 weeks
Change in drug cravings: self-report, visual analog scale (VAS), higher scores indicate higher levels of cravings;
Change from baseline to intervention program completion, an average of 8 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Depression
Time Frame: Change from baseline to intervention program completion, an average of 8 weeks
Change in depression: self-report, standardized questionnaire (Depression sub-scale in Hospital Anxiety and Depression Scale, HADS); Total Score range: 0-21; higher scores indicate higher levels of depression
Change from baseline to intervention program completion, an average of 8 weeks
Anxiety
Time Frame: Change from baseline to intervention program completion, an average of 8 weeks
Change in anxiety: self-report, standardized questionnaire (Depression sub-scale in Hospital Anxiety and Depression Scale, HADS); Total Score range: 0-21; Higher scores indicate higher levels of anxiety
Change from baseline to intervention program completion, an average of 8 weeks
Sleep
Time Frame: Change from baseline to intervention program completion, an average of 8 weeks
Change in sleep: self-report, standardized questionnaire (Pittsburgh Sleep Quality Index, PSQI); Total Score range: 0-21; Higher scores indicate poorer sleep quality
Change from baseline to intervention program completion, an average of 8 weeks
Drug Cravings using Questionnaire
Time Frame: Change from baseline to intervention program completion, an average of 8 weeks
standardized questionnaire (Desires for Drug Questionnaire), higher scores indicate higher levels of cravings
Change from baseline to intervention program completion, an average of 8 weeks

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.
Case Western Reserve University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
University of Colorado, Denver
National Institute of Neurological Disorders and Stroke (NINDS)
National Center for Complementary and Integrative Health (NCCIH)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Nora L. Nock, PhD, Case Western Reserve University

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 10, 2023

Primary Completion (Estimated)

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.
July 5, 2028

Study Completion (Estimated)

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.
July 5, 2028

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).
December 23, 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.
January 17, 2023

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.
January 18, 2023

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.
March 24, 2026

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.
March 20, 2026

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.
March 1, 2026

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.
  • STUDY20201427 - R33 Phase
  • 5R33AT010806-03 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Data will be shared as required by NIH HEAL and as deemed acceptable by governing IRB, HIPPA and other regulations.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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