Slow Opioid Tapering Pilot Study of Patients Using Chronic Opioid Therapy

February 13, 2026 updated by: Terrence J. Witt, Mayo Clinic

A Pilot Study of Slow Opioid Tapering Compared to Continued Opioid Therapy in Treating Chronic Non-Cancer Pain

The purpose of this study is to find out if patients who have been taking a stable dose of opioids for chronic pain would experience any worsening pain, quality of life and functioning, as well as symptoms of depression and anxiety if their opioid medications are gradually and very slowly reduced.

Study Overview

Status

Completed

Study Type

Interventional

Enrollment (Actual)

18

Phase

  • 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 Locations

    • Wisconsin
      • Eau Claire, Wisconsin, United States, 54703
        • Mayo Clinic Health System - Eau Claire
      • Eau Claire, Wisconsin, United States, 54703
        • 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

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Ability to provide consent.
  • Ability to participate in all aspects of this study.
  • Using tablet or capsule form of one or two of the designated opioid preparations daily (at least 95% of days) during the previous 6 months, anticipated long term use and no active plans for tapering. Specific opioid preparations designated for inclusion will be based on the frequency of use by patients on the Chronic Opioid Registry as well as tablet or capsule characteristics which allow encapsulation by the Research Pharmacy. Participants who have been prescribed the following oral opioids will be recruited into the study: tramadol 50mg tablet or capsule; hydrocodone-acetaminophen (APAP) 5mg-325mg tablet or capsule; hydrocodone-APAP 7.5mg-325mg tablet or capsule; hydrocodone-APAP 10mg-325mg tablet or capsule; oxycodone 5mg tablet or capsule; oxycodone 10mg tablet or capsule; oxycodone-APAP 5mg-325mg tablet or capsule; oxycodone 10mg-325mg tablet or capsule; morphine sulfate extended release 15mg tablet or capsule; morphine sulfate extended release 30mg tablet or capsule; morphine sulfate immediate release 15mg tablet or capsule; morphine sulfate immediate release 30mg tablet or capsule.
  • Primary care provider prescribing chronic opioid therapy within MCHS NW WI and in agreement with patient participation.
  • Average daily morphine milligram equivalent (MME) dose at enrollment equal to or less than 90.

Exclusion Criteria:

  • Daily or intermittent use of transdermal, liquid, intravenous or intramuscular forms of opioid during the last 6 months.
  • Use of methadone or buprenorphine.
  • Use of an opioid containing preparation with three or more active ingredients.
  • Active cancer treatment, other than non-melanoma dermatological cancers. This includes patients either currently receiving or planning to receive any type of cancer treatment other than hormonal therapy.
  • Active or planned pregnancy.
  • COT being prescribed for indications other than chronic non-cancer pain (i.e., restless leg syndrome).
  • Enrollment in hospice care.
  • Active suicidal planning or intent as reported on PHQ9.
  • Acquisition of controlled medications from clinicians other than PCP or associated clinicians in the previous 6 months as noted in the Prescription Drug Monitoring Program.
  • Use of opioids and/or benzodiazepines other than those prescribed by PCP or associated clinicians, or the use of illicit substances other than THC, as found in urine drug testing within the previous 6 months.
  • Known history of any condition or factor judged by the investigator to preclude participation in the study or which might hinder adherence.

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: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Slow Tapering of Chronic Opioid Therapy
Subjects who are on a stable dose of daily opioid therapy for at least 6 months will have their opioid medication doses slowly and gradually reduced every 4 weeks.
Clinically prescribed daily opioids reduced by no more than 10 morphine milligram equivalent per day (MMED) each month for 12 months
No Intervention: Continued Opioid Therapy
Subjects who are on a stable dose of daily opioid therapy for at least 6 months will stay on the same dose of opioids they are currently using at the beginning of the study for the entire 12-month duration of the study.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in measures of quality of life
Time Frame: Baseline, 3 months, 6 months, 9 months, 12 months
Measured by the Medical Outcomes Study Questionnaire Short Form Health 36 Survey (SF36v2).The SF-36 is a multi-purpose self-reported survey designed to capture adult patients' perceptions of their own health and well-being.
Baseline, 3 months, 6 months, 9 months, 12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in measures of depression
Time Frame: Baseline, 3 months, 6 months, 9 months, 12 months
Measured using the Physical Health Questionnaire-9 (PHQ-9). The PHQ-9 is a 9-item self-assessment survey which is a reliable and valid measure of depression severity used in both the clinical and research field. Total scores on a scale of 1-27 with higher score indicated higher depression severity.
Baseline, 3 months, 6 months, 9 months, 12 months
Change in measures of anxiety
Time Frame: Baseline, 3 months, 6 months, 9 months, 12 months
Measured using the Generalized Anxiety Disorder Questionnaire-7 (GAD-7). The GAD-7 is a valid and efficient tool for screening for generalized anxiety disorder and assessing its severity in clinical practice and research. Patients indicate one of the 4 numbers (representing severity) associated with 7 problems. Total score symptom range 0-21 with higher score indicated higher anxiety severity.
Baseline, 3 months, 6 months, 9 months, 12 months

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Terrence Witt, MD, Mayo Clinic

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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)

July 1, 2022

Primary Completion (Actual)

August 19, 2024

Study Completion (Actual)

January 31, 2026

Study Registration Dates

First Submitted

March 17, 2022

First Submitted That Met QC Criteria

March 17, 2022

First Posted (Actual)

March 28, 2022

Study Record Updates

Last Update Posted (Actual)

February 17, 2026

Last Update Submitted That Met QC Criteria

February 13, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

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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