Clinical Study of Equivalent Doses of Oxycodone or Tegileridine on Patients Undergoing Gynecological Laparoscopic Hysterectomy

April 14, 2026 updated by: Xin Chen

Effect of Equivalent Dose of Oxycodone or Tegileridine on Patients Undergoing Gynecological Laparoscopic Hysterectomy

This randomized, double-blind, controlled study aims to evaluate the efficacy and safety of Tegileridine or Oxycodone for postoperative analgesia in patients undergoing Total Laparoscopic Hysterectomy（TLH）. Subjects will be randomly assigned to receive an equivalent dose of intravenous Tegileridine or Oxycodone as part of a standard postoperative analgesia regimen. All patients will have access to rescue opioid analgesia according to the protocol. The primary outcome measures are the incidence of postoperative nausea and vomiting in two groups receiving a single dose of equivalent morphine analgesics (Group Tegileridine or Group Oxycodone).The secondary endpoints were designed to compare the success rate of postoperative analgesia, cumulative opioid consumption within 48 hours postoperatively, the time to first rescue analgesia, and the incidence of adverse events such as sedation, respiratory depression, pruritus, and constipation. Safety will be monitored throughout the study via predefined stop-and-report procedures. The study results will evaluate whether teglitazide provides a more effective, better-tolerated analgesic regimen for patients undergoing total laparoscopic hysterectomy.

Study Overview

Status

Status

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

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.

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 (Actual)

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.
68

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
      • Haikou, China
        • Department of Anesthesiology,the Second Affiliated Hospital of Hainan Medical University

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Patients undergoing laparoscopic total abdominal hysterectomy with single-lumen endotracheal tube placement under general anaesthesia.
  2. Females aged 18-65 years with a BMI of 18-28 kg/m²;
  3. Normal mouth opening and head/neck mobility;
  4. Preoperative American Society of Anesthesiologists (ASA) physical status classification of I-III and Mallampati airway classification of I or II;
  5. Patients must also be scheduled for postoperative analgesia and have signed an informed consent form.

Exclusion Criteria:

  1. Patients with allergies to the medications used in this study.
  2. Patients with severe diseases of major organs, such as the heart, lungs or brain, including a history of acute myocardial infarction, cerebral infarction, asthma or chronic obstructive pulmonary disease;
  3. Patients with severe liver or kidney dysfunction, or concomitant severe endocrine disorders such as poorly controlled hypertension, diabetes, hyperthyroidism or hypothyroidism.
  4. Patients with a difficult airway, oropharyngeal/cervical anomalies, or a history of prior tracheostomy;
  5. A history of prolonged sedative/analgesic use, substance abuse or opioid dependence;
  6. Patients with neuropsychiatric disorders or impaired communication/comprehension abilities.

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: Quadruple

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.
Experimental: Tegileridine（T group）
Around 20 minutes before the end of the operation, patients in the T group were given 0.01 mg/kg of Tegileridine(dissolved in 10 ml of 0.9% sodium chloride injection solution. This was administered via continuous infusion at a rate of 60 ml/h).
Drug: Tegileridine (tegileridine fumarate injection, IV)
Tegileridine (tegileridine fumarate injection, IV) is a small-molecule μ-opioid receptor agonist with G-protein-biased signaling (relative to β-arrestin-2 recruitment), developed by Jiangsu Hengrui for postoperative analgesia. It is administered intravenously and was first approved in China in January 2024 for the treatment of moderate-to-severe pain after abdominal surgery; in this study, tegileridine is used as part of standardized multimodal analgesia according to protocol. In China it is regulated as a narcotic drug.
Experimental: Oxycodone（O group）
Around 20 minutes before the end of the operation, patients in the O group were given 0.06 mg/kg of Oxycodone(dissolved in 10 ml of 0.9% sodium chloride injection solution. This was administered via continuous infusion at a rate of 60 ml/h).
Drug: Oxycodone（Oxycodone Hydrochloride Injection，IV）
Oxycodone bitartrate is a dual opioid receptor agonist that is used in clinical settings. Oxycodone bitartrate injection is indicated for the relief of moderate to severe cancer pain. It can be administered alone or in combination with non-steroidal anti-inflammatory drugs to provide acute combined analgesia. In January 2021, Jiangsu Enhua Pharmaceutical submitted a marketing authorisation application for Oxycodone bitartrate injection to the National Medical Products Administration.The application has been accepted and approved.

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
The occurrence of postoperative nausea and vomiting
Time Frame: Within 48 hours after surgery
Following surgery, a blinded evaluator assessed PONV using a 4-point ordinal scale (0 = none, 1 = nausea, 2 = retching, 3 = vomiting). Nausea was defined as a subjectively unpleasant sensation associated with awareness of the urge to vomit. Retching was defined as labored, spasmodic, rhythmic contraction of the respiratory muscles without expulsion of gastric contents. Vomiting was defined as the forceful expulsion of gastric contents from the mouth.
Within 48 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
Richmond Agitation and Sedation Scale(RASS)
Time Frame: Immediately before removal of the endotracheal tube (Postoperative Day 0).
The research team assigns a RASS score (minimum -5 = unarousable, maximum +4 = combative; scores closer to 0 indicate an alert and calm state) by observing the patient immediately before tracheal extubation.
Immediately before removal of the endotracheal tube (Postoperative Day 0).
Success rate of postoperative pain management
Time Frame: After the surgery, before leaving the recovery room（Day 0）
Following extubation during anaesthesia recovery after surgery, pain intensity was assessed at rest using a 10-cm visual analogue scale (VAS) by a blinded evaluator (with a minimum score of 0 indicating no pain and a maximum score of 10 indicating the most severe pain imaginable). Analgesia was recorded as successful when the VAS score was ≤3; otherwise, it was considered unsuccessful.
After the surgery, before leaving the recovery room（Day 0）
Time of First Pressing of the PCIA
Time Frame: Within 48 hours after surgery
Time of First Postoperative Pressing of the Patient-Controlled Intravenous Analgesia（PCIA） pump
Within 48 hours after surgery
Overall incidence of adverse reactions
Time Frame: Within 48 hours after surgery
Incidence of Postoperative nausea and vomiting, hypotension, nasal congestion, dizziness, respiratory depression, delayed emergence from anesthesia, pruritus, muscle rigidity, convulsions, constipation, urinary retention, agitation during emergence, and convulsions.
Within 48 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.
Xin Chen

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Second Affiliated Hospital of Hainan Medical College

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 (Actual)

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.
December 17, 2025

Primary Completion (Actual)

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.
January 13, 2026

Study Completion (Actual)

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.
January 13, 2026

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).
December 24, 2025

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.
December 24, 2025

First Posted (Actual)

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 8, 2026

Study Record Updates

Last Update Posted (Actual)

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.
April 17, 2026

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.
April 14, 2026

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.
December 1, 2025

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.
  • HUMU2H-TCOPOP-CN-2025
  • No.823RC592 (Other Grant/Funding Number: Hainan Provincial Natural Science Foundation of China)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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