Efficacy and Safety of Anrikefon Injection for Multimodal Postoperative Analgesia in Patients Undergoing Laparoscopic Hepatectomy

September 2, 2026 updated by: Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Efficacy and Safety of Anrikefon Injection for Multimodal Postoperative Analgesia in Patients Undergoing Laparoscopic Hepatectomy:A Single-center, Randomized, Double-blind, Placebo-controlled Clinical Trial

A single-center, randomized, double-blind, placebo-controlled trial design will be adopted to investigate whether Anruikefon can significantly reduce the consumption of sufentanil via PCIA pumps within 48 hours postoperatively compared with placebo.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

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

A single-center, randomized, double-blind, placebo-controlled trial design will be adopted to investigate whether Anruikefon can significantly reduce the consumption of sufentanil via PCIA pumps within 48 hours postoperatively compared with placebo.

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 (Estimated)

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.
117

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, 510000
        • Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
        • Contact:

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:

  • Aged ≥ 18 years;
  • American Society of Anesthesiologists (ASA) physical status classification I-III;
  • Body mass index (BMI): 18 kg/m² ≤ BMI ≤ 30 kg/m²;
  • Patients scheduled to undergo laparoscopic hepatectomy under general anesthesia with estimated operation duration ≤ 5 hours;
  • Agree to participate in this trial and voluntarily sign the informed consent form.

Exclusion Criteria:

  • Patients with a history of severe cardiopulmonary disease, neuropsychiatric disorders, digestive system diseases, chronic dizziness or vestibular dysfunction;
  • Patients undergoing emergency surgery or trauma patients;
  • Intraoperative conversion to open laparotomy;
  • History of abdominal surgery within the past 3 months;
  • Patients undergoing liver transplantation or with metastasis to other organs;
  • Patients requiring synchronous resection of organs other than the gallbladder, extrahepatic bile ducts and intestines due to intraoperative clinical needs;
  • Severe renal dysfunction (estimated glomerular filtration rate <30 mL/min/1.73 m²);
  • Laboratory findings or clinical evaluation indicating hypothyroidism or hypokalemia graded ≥ Grade 3 per CTCAE v6.0;
  • Subjects who experienced nausea, retching or vomiting within 24 hours before anesthesia induction (excluding those caused by bowel preparation);
  • Patients expected to require postoperative mechanical ventilation via endotracheal intubation or naso/orogastric tube placement for more than 24 hours;
  • Known allergy or contraindication to opioids and other anesthetics, antiemetics that may be administered during the trial.
  • Use of drugs with analgesic, antiemetic or anti-inflammatory effects with unknown half-life within 14 days prior to randomization; or the interval between the last administration and randomization is shorter than 5 half-lives or the duration of drug effect (whichever is longer). Such drugs include, but are not limited to, opioid analgesics, non-opioid analgesics, antiemetics (or drugs with antiemetic properties), sedative-hypnotics, sedative anesthetics, glucocorticoids and other drugs with analgesic or antiemetic effects.
  • Subjects with any other factors deemed by the investigator(s) to render them unsuitable for participation in this clinical study.

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: 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.
Experimental: Anruikefon 1 μg/kg per dose Group
Anruikefon 1 μg/kg per dose, once every 8 hours (q8h), for a total of 6 doses.
Drug: Anruikefon 1 μg/kg per dose Group
Anruikefon 1 μg/kg/dose, once every 8 hours (q8h), for a total of 6 doses.
Experimental: Anruikefon 100 μg per dose Group
Anruikefon 100 μg per dose, once every 8 hours (q8h), for a total of 6 doses.
Drug: Anruikefon 100 μg per dose Group
Anruikefon 100 μg per dose, once every 8 hours (q8h), for a total of 6 doses.
Placebo Comparator: Placebo Group
0.9% Sodium Chloride Injection, via intravenous bolus injection, once every 8 hours (q8h), for a total of 6 doses.
Drug: Control group
0.9% Sodium Chloride Injection, via intravenous bolus injection, once every 8 hours (q8h), for a total of 6 doses.

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
Time Frame
Consumption of sufentanil via PCIA within 48 hours after the first study drug administration
Time Frame: 0-48 hours post first study drug dose
0-48 hours post first study drug dose

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
Time Frame
Proportion of rescue analgesia
Time Frame: Within0-24 hours and 0-48 hours after the first study drug administration
Within0-24 hours and 0-48 hours after the first study drug administration
Cumulative consumption dose of rescue analgesia
Time Frame: within 0-24 hours and 0-48 hours after the first study drug administration
within 0-24 hours and 0-48 hours after the first study drug administration
Time from end of surgery to first passage of flatus (hours)
Time Frame: Throughout the inpatient hospital stay after surgery, from the end of surgery until the first flatus occurs
Throughout the inpatient hospital stay after surgery, from the end of surgery until the first flatus occurs
Time from end of surgery to first defecation (hours)
Time Frame: Throughout the inpatient hospital stay after surgery, from the end of surgery until the first defecation occurs
Throughout the inpatient hospital stay after surgery, from the end of surgery until the first defecation occurs
Time from the end of surgery to first ambulation (hours)
Time Frame: Throughout the inpatient hospital stay after surgery, from the end of surgery until the first ambulation occurs
Throughout the inpatient hospital stay after surgery, from the end of surgery until the first ambulation occurs
Incidence of nausea, vomiting and PONV
Time Frame: Within 48 hours after the first study drug administration
Within 48 hours after the first study drug administration
Patient satisfaction score for analgesia
Time Frame: Within 48 hours after the first study drug administration
Within 48 hours after the first study drug administration
Proportion of subjects with resting numerical rating scale (NRS) pain score ≥ 3
Time Frame: Within 0-24 hours and 0-48 hours after the first study drug administration
Within 0-24 hours and 0-48 hours after the first study drug administration
Resting numerical rating scale (NRS) pain score
Time Frame: At 1 hour (±30 minutes), 8 hours (±2 hours), 24 hours (±2 hours), 48 hours (±3 hours) after the first study-drug administration
At 1 hour (±30 minutes), 8 hours (±2 hours), 24 hours (±2 hours), 48 hours (±3 hours) after the first study-drug administration
Movement-evoked numerical rating scale (NRS) pain score
Time Frame: At 1 hour (±30 minutes), 8 hours (±2 hours), 24 hours (±2 hours), 48 hours (±3 hours) after the first study-drug administration
At 1 hour (±30 minutes), 8 hours (±2 hours), 24 hours (±2 hours), 48 hours (±3 hours) after the first study-drug administration
Incidence of rescue antiemetic treatment
Time Frame: Within 48 hours after the first study drug administration
Within 48 hours after the first study drug administration
Cumulative dose of rescue antiemetic treatment
Time Frame: Within 48 hours after the first study drug administration
Within 48 hours after the first study drug administration
Incidence of serious adverse events and study drug-related adverse events
Time Frame: Throughout the inpatient hospital stay after surgery, from the end of surgery until hospital discharge
Throughout the inpatient hospital stay after surgery, from the end of surgery until hospital discharge
Sleep quality score assessed using the Richards-Campbell Sleep Questionnaire (RCSQ; score range 0-100, higher scores indicate better sleep quality)
Time Frame: On the single night following the first administration of study drug
On the single night following the first administration of study drug
Cumulative consumption of sufentanil delivered via patient-controlled intravenous analgesia (PCIA)
Time Frame: Within 24 hours after the first study-drug administration
Within 24 hours after the first study-drug administration
Serum biomarker concentrations: alanine transaminase (ALT), aspartate transaminase (AST), albumin (ALB), total bilirubin (TBIL), direct bilirubin (DBIL), indirect bilirubin (IBIL), international normalized ratio (INR)
Time Frame: Preoperative baseline (prior to surgical incision), and within the interval from 24 hours to 48 hours after the first administration of study drug
Preoperative baseline (prior to surgical incision), and within the interval from 24 hours to 48 hours after the first administration of study drug
Proportion of subjects with movement-evoked Numerical Rating Scale (NRS) pain score ≥ 3
Time Frame: Within 0-24 hours and 0-48 hours after the first study-drug administration
Within 0-24 hours and 0-48 hours after the first study-drug administration
Overall patient recovery quality score evaluated via the QoR-15 questionnaire (score range 0-150; higher scores indicate better recovery quality)
Time Frame: Within 48 hours after the first study-drug administration
Within 48 hours after the first study-drug administration
Cumulative opioid consumption, converted to intravenous morphine milligram equivalents (MME)
Time Frame: Within the interval from 0 hours to 24 hours after the first administration of study drug, and within the interval from 0 hours to 48 hours after the first administration of study drug
Within the interval from 0 hours to 24 hours after the first administration of study drug, and within the interval from 0 hours to 48 hours after the first administration of study drug

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.
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

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: Changzhen Shang, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

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 (Estimated)

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.
August 30, 2026

Primary Completion (Estimated)

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.
July 1, 2027

Study Completion (Estimated)

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.
July 30, 2027

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).
July 29, 2026

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.
September 2, 2026

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.
September 3, 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.
September 3, 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.
September 2, 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.
July 1, 2026

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.
  • SYSKY-2026-307-03

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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