RecruitingPhase 2NCT05027919

Assessing a Clinically-meaningful Opioid Withdrawal Phenotype


Sponsor

University of Maryland, Baltimore

Enrollment

60 participants

Start Date

Dec 1, 2021

Study Type

INTERVENTIONAL

Conditions

Summary

Evaluate individual differences in the expression of opioid withdrawal symptoms in persons with opioid use disorder (OUD) while completing a clinically-indicated medication taper.


Eligibility

Min Age: 18 YearsMax Age: 65 Years

Inclusion Criteria4

  • years - 65 year old
  • Opioid-positive urine sample
  • Current opioid use disorder with evidence of physical dependence
  • Interest in undergoing opioid taper

Exclusion Criteria7

  • Evidence of physical dependence on alcohol or benzodiazepines that requires medical intervention
  • Being pregnant or breastfeeding
  • Enrolled in methadone or buprenorphine maintenance treatment
  • Clinically significant hypotension (<90/60mmHg) or bradycardia (<45bpm)
  • History of myocardial infarction
  • Subjects who are positive for hepatitis B surface antigen and/or hepatitis C antibody with liver function tests outside the normal range (persons with a positive hepatitis C antibody and normal liver functions tests are NOT excluded from the study)
  • Significant mental health or physical disorder, or life circumstances, that is expected to interfere with study participation

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Interventions

DRUGHydromorphone

Up to 120mg oral per day in q4 dosing to manage withdrawal

DRUGNaloxone + lofexidine pretreatment

0.2-0.4mg naloxone injection during the Naloxone challenge + pretreatment with oral lofexidine (25% of max daily dose scheduled during lofexidine taper)

DRUGNaloxone + placebo pretreatment

0.2-0.4mg naloxone injection during the Naloxone challenge

DRUGLofexidine

Oral Lofexidine dosed per FDA label (4 times daily) on days 6 through 10.


Locations(1)

University of Maryland

Baltimore, Maryland, United States

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NCT05027919


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