Divided or Single Exposure (DOSE) Study

Trial statusRecruiting
Trial phasePhase 2, Phase 3
Trial typeInterventional
Biological sexAll
Age18-100
SponsorUniversity of Maryland, Baltimore

About this trial

This study will evaluate whether once versus twice daily dosing of methadone will be an effective method for managing comorbid pain and opioid use disorder.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Aged 18 years of age or older

Currently receiving methadone for treatment of OUD for >90 days and have been consuming the same dose for >30 days

Have previously received a take-home dose of methadone as part of routine care

Willing to comply with study schedule

Disqualifiers

Pregnant

Presence of acute medical problem that requires immediate and intense medical management

Presence of a serious and unstable mental illness that interferes with provision of voluntary informed consent and/or adherence to study visits

Plans to leave methadone treatment during the study period

Trial design

Design model

Parallel

Treatments tested in this trial

  • Methadone (100% dose)

    Drug

    Methadone for the treatment of opioid use disorder

  • Methadone (50% dose)

    Drug

    Methadone for the treatment of opioid use disorder

Treatment groups

150 Participants
are divided into 2 treatment groups
Group A: Treatment as Usual (TAU)Active comparator 1 intervention
Group B: Split-dosingExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Change in worst pain rating- past 24 hour as assessed by the Brief Pain Inventory scale

Using the Brief Pain Inventory rating of "Worst Pain" in the past 24 hours, rated on a scale of 1-10, collected once weekly during weeks 1 through 12 of the intervention.

Time frame
Week 1 up to week 12

Secondary outcomes

1

Change in Pain Tolerance Latency

Time in seconds (0-300) to removal of hand from cold pressor measure of laboratory-induced pain, collected point-prevalence during weeks 1, 6, and 12 of the intervention.

Time frame
Weeks 1, 6, and 12
2

Change in Pain Interference- past 7 days as assessed by Pain-related Disability Scale Total Score

Past 7 day Pain-related Disability Scale Total Score (range 0-70), collected once weekly during weeks 1 through 12 of the intervention.

Time frame
Week 1 up to 12
3

Change in Opioid Withdrawal Severity- past 24 hours as assessed by the Subjective Opioid Withdrawal Scale

Past 24 hour total score (range 0-64) for the Subjective Opioid Withdrawal Scale (SOWS), collected once weekly during weeks 1 through 12 of the intervention.

Time frame
Week 1 up to 12

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Maryland, Baltimore

Lead sponsor

National Institute on Drug Abuse (NIDA)

Collaborator