Effect of Dexmedetomidine for Postoperative Intravenous Patient Controlled Analgesia

January 6, 2017 updated by: Weifeng Tu

Effect of Dexmedetomidine Combined With Dezocine and Flubiprofen for Postoperative Intravenous Patient Controlled Analgesia After Colorectal Surgery

The purpose of this study is to explore the effectiveness of dexmedetomidine as an adjunctive analgesic, combined with dezocine and flubiprofen, used in intravenous Patient-Controlled Analgesia (PCA) after open colorectal surgery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Unknown

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Dexmedetomidine is a selective alpha-2 adrenoceptor agonist, which has been demonstrated to have anaesthetic, sedative and analgesic-sparing effects. Besides, Dexmedetomidine has been reported to cause sedative effects and reduce opioid requirements in the perioperative period. Many studies had been conducted to reduce the side effect of opioid analgesic. The current trend of reducing opioid analgesic side effect is direct combination of other drugs in PCA. The advantages of this method are convenient in clinical use and preventive for side effects.

In this study, 50 patients who is undergoing elective colorectal surgery will be randomly allocated into two groups (Control group and Dexmedetomidine group). Patients in both groups will be given a patient-controlled analgesia (PCA) pump in post anesthetic recovery unit (PACU) after surgery.

The PCA protocol of Control group is dezocine 0.6mg/kg, flubiprofen 3mg/kg, diluted into 120ml and administer at a background infusion of 2ml/h, and a bolus of 2ml, with a lock-out of 15min. The PCA protocol of Dexmedetomidine group is dezocine 0.6mg/kg, flubiprofen 3mg/k and dexmedetomidine 6μg/kg diluted into 120ml and administer at a background infusion of 2ml/h, and a bolus of 2ml, with a lock-out of 15min.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China, 510010
        • Recruiting
        • Guangzhou General Hospital of Guangzhou Military Command
        • Contact:
        • Contact:
        • Principal Investigator:
          • Weifeng Tu, PhD
        • Sub-Investigator:
          • Yang Zhou, PhD
        • Sub-Investigator:
          • Chuangbo Xie, Master

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 61 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. American Society of Anesthesiologists(ASA) Ⅰ-Ⅱ patient undergoing open colorectal surgery
  2. Written informed consent from the patient or the relatives of the participating patient.
  3. BMI:18～30kg/m2

Exclusion Criteria:

  1. Mental illness or cannot communicate.;
  2. A second operation during the study;
  3. Slow-type arrhythmias or hypotension;
  4. Lung infection or sleep apnea syndrome;
  5. Renal failure;
  6. Alcohol or drug abuse;
  7. Already taking gabapentin, pregabalin, benzodiazepin or antidepression drug;
  8. Long-term use of analgesics,sedatives or non steroidal anti-inflammatory drugs history;

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: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Control Group
Patients in this group receive intravenous Patient-Controlled Analgesia(PCA) pump after surgery.The intravenous PCA protocol is dezocine 0.01mg/kg/h,flubiprofen 0.05mg/kg/h.
Drug: Dezocine
Dezocine 0.01mg/kg/h intravenous administration during the first two days after surgery.
Drug: Flubiprofen
Flubiprofen 0.5mg/kg/h intravenous administration during the first two days after surgery.
Experimental: Dexmedetomidine Group
Patients in this group receive intravenous Patient-Controlled Analgesia(PCA) pump after surgery.The intravenous PCA protocol is dezocine 0.01mg/kg/h,flubiprofen 0.05mg/kg/h,dexmedetomidine 0.1μg/kg/h.
Drug: Dezocine
Dezocine 0.01mg/kg/h intravenous administration during the first two days after surgery.
Drug: Flubiprofen
Flubiprofen 0.5mg/kg/h intravenous administration during the first two days after surgery.
Drug: Dexmedetomidine
Dexmedetomidine 0.1μg/kg/h intravenous administration during the first two days after surgery.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Dezocine consumption by patient-controlled analgesia
Time Frame: At 24 hours after surgery
The total consumption of dezocine during 24 hours after surgery are recorded.
At 24 hours after surgery
Change in pain score
Time Frame: At 0, 2, 4, 8, 24, 48 and 72 hours after surgery
Pain scores at rest and movement are evaluated with a numeric rating scale (NRS).
At 0, 2, 4, 8, 24, 48 and 72 hours after surgery

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in ramsay sedation score
Time Frame: At 0, 2, 4, 8, 24, 48 and 72 hours after surgery
Measure sedation level by using ramsay sedation score
At 0, 2, 4, 8, 24, 48 and 72 hours after surgery
The incidence rates of postoperative nausea and vomiting (PONV)
Time Frame: At 24 hours after surgery
Measure whether nausea and vomiting exist and the level of severity.
At 24 hours after surgery

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Weifeng Tu

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Weifeng Tu, PhD, Guangzhou General Hospital of Guangzhou Military Command

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 1, 2016

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2017

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 3, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 6, 2017

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 9, 2017

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 9, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 6, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Dexmedetomidine PCA

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