Methadone Versus Placebo in Spine Fusion

April 21, 2015 updated by: Dhanesh Gupta, Northwestern University

The Effect of Methadone on Perioperative Analgesia After Posterior Lumbar Fusion - A Randomized, Placebo-controlled, Double-blinded Study

What is the influence of methadone on postoperative analgesia after lumbar interbody fusion in opioid naïve patients or patients who are taking less than equivalent of 15 mg IV morphine each day? What is the incidence of opioid related postoperative side effects after the administration of methadone in the operating room?

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Hypothesis:

  1. We hypothesize that 0.2 mg/kg of methadone will result in decreased postoperative hydromorphone consumption compared to hydromorphone alone in opioid naïve patients or patients who are taking less than the equivalent of 15 mg IV morphine a day undergoing lumbar interbody fusion.
  2. We hypothesize that the incidence of opioid related postoperative side effects will not be increased by the administration of methadone in the operating room.

Study Type

Interventional

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

    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern Memorial Hospital

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

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • ASA physical status I, II, and III, male and non-pregnant female
  • English-speaking patients
  • Ages 18-75 years
  • Undergoing elective one or two level posterior lumbar interbody fusion

Exclusion Criteria:

  • Use of more than the equivalent of 15 mg of IV morphine/24 hr in the past 2 weeks.
  • Use of drugs within the past 6 months that effect the pharmacokinetics or pharmacodynamics of opioids (i.e., benzodiazepines, anti-retroviral agents, rifampin, ketoconazole, erythromycin, or phenytoin).
  • history of substance abuse at any time in the past
  • known QT prolongation
  • Non-elective operations (i.e., cancer or trauma)
  • severe hepatic impairment (serum albumin < 3.0 g/dL in the presence of a history of liver disease)
  • pregnancy
  • inability to operate a patient-controlled analgesia device

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: Single Group Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Methadone Group
0.2 mg/kg IV methadone
0.2 mg/kg methadone IV bolus
Other Names:
  • Dolophine
Placebo Comparator: Placebo Group
5 mL saline bolus
3 mL saline IV bolus
Other Names:
  • 0.9 NaCl

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hydromorphone postoperative opioid consumption (POC) at 48 hours
Time Frame: 48 hrs
PCA opioid consumption during the initial postoperative 48 hours after arriving in the PACU
48 hrs

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Intraoperative remifentanil consumption
Time Frame: the 8 hours prior to arrival in the recovery room
intraoperative consumption of remifentanil--the amount of remifentanil used in the OR (i.e., the 2-8 hours prior to arrival in the recovery room)
the 8 hours prior to arrival in the recovery room
pain at rest and with movement (numerical Rating Scale, NRS)
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
the level of sedation (modified Observer's Assessment of Alertness and Sedation Scale, modified OAA/S scale)
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
the number of occurrences of ventilatory depression during each evaluation interval
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
number of occurrences of nausea (resulting in treatment)
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
recorded emesis
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
occurrence of pruritus
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs, 48 hrs
Hydromorphone postoperative opioid consumption (POC)
Time Frame: 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs
PCA opioid consumption at postoperative 1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs after arriving in the PACU
1 hr, 6 hrs, 12 hrs, 24 hrs, 36 hrs

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Dhanesh K Gupta, M.D., Northwestern University Feinberg School of Medicine

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.

General Publications

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

May 1, 2010

Primary Completion (Actual)

January 1, 2014

Study Completion (Actual)

January 1, 2014

Study Registration Dates

First Submitted

May 11, 2010

First Submitted That Met QC Criteria

May 17, 2010

First Posted (Estimate)

May 18, 2010

Study Record Updates

Last Update Posted (Estimate)

April 22, 2015

Last Update Submitted That Met QC Criteria

April 21, 2015

Last Verified

April 1, 2015

More Information

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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