NCT01748071

Brief Summary

Purpose: This study aimed to find a quick and timely way to investigate the individual variation of efficacy of opioid analgesic in Chinese patients undergoing elective surgeries. Methods: 120 female patients receiving elective surgery under general anesthesia were recruited into this study. At the time of routine intravenous anesthetic induction we observe the efficacy of opioid analgesic including analgesic effect, effects on Narco-trend index, sedative effect, effects on respiratory system, and aslo effects on cardiovascular system.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jun 2012

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2012

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2012

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

December 9, 2012

Completed
3 days until next milestone

First Posted

Study publicly available on registry

December 12, 2012

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2013

Completed
10 months until next milestone

Results Posted

Study results publicly available

November 25, 2013

Completed
Last Updated

November 25, 2013

Status Verified

September 1, 2013

Enrollment Period

6 months

First QC Date

December 9, 2012

Results QC Date

May 30, 2013

Last Update Submit

September 22, 2013

Conditions

Keywords

fentanylsufentanilindividual variationpain thresholdnacro-trend index

Outcome Measures

Primary Outcomes (2)

  • Mean Pressure Pain Threshold

    According to the measurement of pressure pain threshold after intravenous injection of opioid analgesics

    10 minutes after the procedure

  • Mean Value of Narco-trend Index

    According to the measurement of Nacro-trend index after intravenous injection of opioid analgesics. Narco-trend index is from 0 to 100 which 0 represent deep sedation, and 100 represent waking state.

    10 minutes after the procedure

Secondary Outcomes (3)

  • Mean Arterial Pressure

    10 minutes after the procedure

  • Mean Heart Rate

    10 minutes after the procedure

  • Mean Respiratory Frequency

    10 minutes after the procedure

Study Arms (3)

Sufentanil group

Grouped by intravenous injection of sufentanil at the time of anesthesia induction

Fentanyl group

Grouped by intravenous injection of fentanyl at the time of anesthesia induction

Saline group

Grouped by intravenous injection of saline before the time of anesthesia induction

Eligibility Criteria

Age20 Years - 65 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

120 Chinese female patients receiving elective surgery under general anesthesia

You may qualify if:

  • Aged 20-65 years
  • Anesthesiologists (ASA) physical status I or II;
  • Within ±20% of ideal body weight;
  • Agreed to participate the research

You may not qualify if:

  • History of chronic pain;
  • Psychiatric diseases;
  • Diabetes mellitus;
  • Severe cardiovascular diseases;
  • Kidney or liver diseases;
  • Alcohol or drug abuse (according to the criteria of DSM-IV);
  • Pregnancy or at lactation period;
  • Disagree to participate to the research

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, 430030, China

Location

Limitations and Caveats

Because 3 patients couldn't maintain the SPO2 at 90% and 1 patient was at deep sedation, 4 subject patients were not analysed in the final results. These patients were performed as a routine intravenous anesthetic induction.

Results Point of Contact

Title
Xianwei Zhang
Organization
Huazhong University of Science&Technology

Study Officials

  • Zhang Xianwei, MD

    Huazhong University of Science and Technology

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, MD.

Study Record Dates

First Submitted

December 9, 2012

First Posted

December 12, 2012

Study Start

June 1, 2012

Primary Completion

December 1, 2012

Study Completion

February 1, 2013

Last Updated

November 25, 2013

Results First Posted

November 25, 2013

Record last verified: 2013-09

Locations