Perioperative Administration of Pregabalin for Pain After Mastectomy

May 17, 2010 updated by: Severance Hospital
The investigators hypothesize that pregabalin will decrease post-operative pain scores and analgesic use following total mastectomy compared to placebo. The primary outcome will be acute postoperative pain, measured by a verbal numerical rating score (VNRS) and total analgesic consumption during postoperative 48 hours. The secondary outcome will be VNRS at 1 week and 1 month after operation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

70

Phase

  • Phase 4

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

  • Korea, Republic of
      • Seoul, Korea, Republic of, 120-752
        • Department of Anesthesiology and Pain Medicine and Anesthesia

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

21 years to 69 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  1. American Society of Anesthesia physical status class I & II
  2. Age > 20 and < 70 years
  3. Robot- assisted endoscopic thyroidectomy

Exclusion Criteria:

  1. Known or suspected allergy, sensitivity, or contraindication to pregabalin or any of the standardized medications
  2. Body mass index ≥ 40 kg/m2
  3. History of seizure disorder
  4. Current therapy with pregabalin, gabapentin, or any opioid
  5. Any other physical or psychiatric condition which may impair their ability to cooperate with post-operative study data collection
  6. Insulin-dependent diabetes mellitus
  7. Renal insufficiency (estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73 m2)

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: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Patients receive oral Placebo 1 hour prior to surgery, and 12 hours later
Drug: Vitamin Complex (placebo)
Vitamin Complex orally
Experimental: Pregabalin
Patients receive oral pregabalin 1 hour prior to surgery, and 12 hours later
Drug: Pregabalin
Pregabalin 75 mg orally

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain Scores (Verbal Numerical Rating Scale;VNRS) During Postoperative Hours.
Time Frame: 1, 6, 24, 48 hour
Pain was evaluated using an 11-point verbal numerical rating scale (VNRS). Patients were instructed preoperatively to express their pain on the 0-10 VNRS, where 0 represents no pain at all and 10 represents the worst pain imaginable.
1, 6, 24, 48 hour
Number of Participants With the Indicated Side Effects - Nausea & Vomiting, Sedation, Headache, Dizziness Etc.
Time Frame: 1, 6, 24, 48 hour
Nausea and vomiting was graded on a four-point scale, where 0 = no nausea, 1 = mild nausea, 2 = severe nausea requiring antiemetics, and 3 = retching and/ or vomiting. Grades 3 and 4 were grouped together as postoperative nausea and vomiting (PONV) and rescue anti-emetic, metoclopramide 10 mg i.v. was given.
1, 6, 24, 48 hour

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Pain Scores (VNRS) at 1 Week and 1 Month After Operation
Time Frame: 1 week, 1 month
Pain was evaluated using an 11-point verbal numerical rating scale (VNRS). Patients were instructed preoperatively to express their pain on the 0-10 VNRS, where 0 represents no pain at all and 10 represents the worst pain imaginable.
1 week, 1 month

Collaborators and Investigators

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

Sponsor

Severance Hospital

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

June 1, 2009

Primary Completion (Actual)

December 1, 2009

Study Completion (Actual)

January 1, 2010

Study Registration Dates

First Submitted

July 13, 2009

First Submitted That Met QC Criteria

July 13, 2009

First Posted (Estimate)

July 14, 2009

Study Record Updates

Last Update Posted (Estimate)

May 25, 2010

Last Update Submitted That Met QC Criteria

May 17, 2010

Last Verified

July 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IRB 4-2009-0186

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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