Effect of Buprenorphine/Naloxone Continuation on Pain Control and Opioid Use

Overview

The aim of this study is to determine the effect of continuation of buprenorphine/naloxone in patients with history of Opioid Use Disorder (OUD) scheduled for surgery compared to reduced dose buprenorphine/naloxone prior to surgery on pain scores, opioid consumption, depressive symptoms and severity of substance use dependence- including record of problematic use of any non-prescribed opioids, alcohol and illicit narcotics.

Full Title of Study: “A Prospective, Randomized Trial of the Effect of Standard of Care Reduced Dose Versus Full Dose Buprenorphine/Naloxone in the Perioperative Period on Pain Control and Post Operative Opioid Use Disorder Symptoms”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: None (Open Label)
  • Study Primary Completion Date: December 31, 2021

Detailed Description

Opioid use disorder (OUD) is characterized by non-remitting cycles of remission and opioid abuse relapse. It is associated with a high rate of psychiatric and physical co-morbidity when left untreated. Buprenorphine and buprenorphine/naloxone are effective opioid maintenance therapy (OMT) for OUD, however, treatment of acute post-surgical pain in patients taking buprenorphine is perceived to be challenging. Although not substantiated in clinical studies, the combination of high receptor binding affinity, long half-life, and partial mu opioid receptor agonism with buprenorphine/naloxone are thought to inhibit the analgesic actions of full mu opioid receptor agonists, potentially making standard postoperative pain control strategies less effective. There is no evidence based standard of care for optimal acute pain management strategies for patients taking buprenorphine and most recommendations are based upon provider opinion- occasionally conflicting along specialty lines. Some providers, mainly consisting of surgeons and anesthesiologists, recommend that buprenorphine should be discontinued at least 72 hours prior to elective surgery and replaced with low dose opioid agonists, in the interim. Other providers, mainly comprising of psychiatrists, contend that these patients should be maintained on buprenorphine throughout the peri-operative period at either a full or reduced dose to prevent an indeterminate risk of substance abuse relapse that can occur as consequence to the abrupt termination buprenorphine in the highly stressful surgical period. This study aims to inform this important unresolved question in the clinical care of this growing population. The investigators seek to determine the effectiveness of managing postoperative pain in patients with OUD where buprenorphine/naloxone is continued perioperatively compared to patients where buprenorphine/naloxone is reduced to a lower dose. Longitudinally, the investigators also intend to determine if there is a difference in substance abuse relapse in patients where buprenorphine/naloxone is continued vs. held by using self assessments and communication with the participant's buprenorphine provider.

Interventions

  • Drug: buprenorphine/naloxone
    • The intervention will be to either continue taking buprenorphine/naloxone or to have the medication reduced perioperatively.

Arms, Groups and Cohorts

  • Active Comparator: FULL-BUPRENORPHINE
    • Participants will be randomly assigned to be maintained on their daily dose of buprenorphine/naloxone
  • No Intervention: LOW-BUPRENORPHINE (control)
    • Participants will be randomly assigned to have their daily dose of buprenorphine/naloxone reduced to 8mg on the day of surgery

Clinical Trial Outcome Measures

Primary Measures

  • Post-operative pain scores
    • Time Frame: 24 hours after surgery
    • Level of pain on a Visual Analog Scale of 0-100 (0=no pain; 100=worst pain imaginable) This scale will be used to quantify the varying degrees of pain or discomfort experienced by the participant.

Secondary Measures

  • Postoperative opioid consumption
    • Time Frame: 24 hours, 48 hours and 72 hours after surgery
    • Amount of opioids needed for pain control postoperatively
  • Post-operative pain scores
    • Time Frame: 48 hours, 72 hours after surgery
    • Level of pain on Visual Analog Scale 0-100 (0= no pain 100= worst pain imaginable) We will compare the results of the 48 and 72 hour time-points with the 24 hour time-point.
  • Presence, severity of substance abuse
    • Time Frame: 1 month after surgery
    • Participants will complete questionnaires to identify the presence and severity of substance abuse.These values will be compared with baseline values obtained preoperatively.

Participating in This Clinical Trial

Inclusion Criteria

  • currently taking buprenorphine or buprenorphine/naloxone daily for treatment of opioid use disorder by DSM-V criteria – on buprenorphine or buprenorphine/naloxone dose of greater than 8mg for at least 30 days – ASA health class I-III Exclusion Criteria:

  • Unable to consent to the study – Significant pulmonary or cardiac disease – Renal insufficiency with a glomerular filtration rate less than 30ml/min – Liver cirrhosis with a Model for End-Stage Liver Disease (MELD) score of greater than 25

Gender Eligibility: All

Minimum Age: 18 Years

Maximum Age: 65 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Massachusetts General Hospital
  • Provider of Information About this Clinical Study
    • Principal Investigator: Aurora Naa-Afoley Quaye, Instructor M.D. – Massachusetts General Hospital
  • Overall Official(s)
    • Aurora Quaye, MD, Principal Investigator, Massachusetts General Hospital
  • Overall Contact(s)
    • Aurora Quaye, MD, 617-726-2000, aquaye@partners.org

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