Impact of Maxigesic on Delirium After Minimally Invasive Lung Surgery in Elderly Patients

August 28, 2025 updated by: Kim, Heezoo, Korea University Guro Hospital

The Impact of Intravenous Administration of Perioperative Acetaminophen and Ibuprofen Combination (Maxigesic®) on Postoperative Delirium in Elderly Patients Undergoing Minimally Invasive Lung Segmentectomy or Lobectomy

The primary aim of this interventional study is to investigate the impact of perioperative administration of Maxigesic (combination of acetaminophen and ibuprofen) on delirium after minimally invasive lung surgery in elderly patients. The Maxigesic group receives a total of 5 doses of Maxigesic (20mg/kg, maximum dose per serving: 1g) every 6 h from immediately after anesthesia induction. The control group receives the same volume of normal saline. Researchers compare the incidence and severity of postoperative delirium for 5 days after surgery.

Study Overview

Status

Status

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

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.
25

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 Contact Backup

Study Locations

  • South Korea
      • Seoul, South Korea, 08308
        • Korea University Guro Hospital

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

  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients aged 65 years or older undergoing minimally invasive lung lobectomy or segmentectomy

Exclusion Criteria:

  • Hypersensitivity to the main ingredients and additives of Maxigesic
  • Hypersensitivity to aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs)
  • Alcoholism / Alcohol intoxication
  • Severe hematological abnormalities
  • Bleeding tendency (e.g., Spontaneous bleeding)
  • Severe hepatic dysfunction (AST, AST ≥2.5 * upper normal limit(UNL) or Total bilirubin ≥3.0 mg/dl)
  • Severe renal dysfunction (eGFR <30 ml/min/1.73m2 or Dialysis)
  • Severe heart failure (Left ventricle ejection fraction <30%)
  • Uncontrolled hypertension(HTN) (Systolic blood pressure >180 mmHg)
  • Symptomatic asthma in need of treatment
  • Anticoagulants or antiplatelet agents are maintained for up to 5 days before surgery
  • Barbiturates or tricyclic antidepressants (TCAs)
  • High-dose methotrexate (MTX) for cancer treatment
  • Preoperative cognitive impairment, dementia, or delirium
  • Inability to understand the research and instructions for this 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: Prevention
  • 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.
Placebo Comparator: Control group
Drug: Normal saline
Patients in the control group will be administered equal amounts of normal saline at the same time points.
Experimental: Maxigesic group
Drug: Acetaminophen and Ibuprofen
Patients in the Maxigesic group will be administered a total of 5 doses of the drug (20mg/kg, maximum dose per serving: 1g) every 6 h from immediately after anesthetic induction.

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
Incidence of postoperative delirium(POD)
Time Frame: From immediately after surgery to 5 days after surgery
Confusion assessment method(CAM)/Confusion Assessment Method for the ICU (CAM-ICU) or delirium record on electrical medical record(EMR) will be used for the evaluation of POD.
From immediately after surgery to 5 days 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
Duration of POD
Time Frame: From immediately after surgery to 5 days after surgery
CAM/CAM-ICU or delirium record on EMR will be used to estimate the duration of POD.
From immediately after surgery to 5 days after surgery
Preoperative cognition
Time Frame: 1 day before surgery
Mini-mental state examination(MMSE) will be used to evaluate the participants' preoperative cognition. (*MMSE is measured on 0-30 scale, and the lower the score, the more cognitively impaired the patient is.)
1 day before surgery
Preoperative cognition
Time Frame: 1 day before surgery
Montreal cognitive assessment(MoCA) will be used to evaluate the participants' preoperative cognition. (*MoCA is measured on 0-30 scale, and the lower the score, the more cognitively impaired the patient is.)
1 day before surgery
Preoperative frailty
Time Frame: 1 day before surgery
Clinical frailty scale(CFS) will be utilized to assess the preoperative frailty (*CFS is used to determine comprehensive geriatric assessment. It is measured on 1-9 scale, and the higher the scale, the more frail the patient is.)
1 day before surgery
Postoperative pain
Time Frame: Immediately after surgery to postoperative 48 hours
Numerical rating scale (NRS) or Visual analogue scale (VAS) will be used to determine the postoperative pain severity (*NRS and VAS are measured on a 0-10 scale, and the higher the score, the more severe the patient's pain. If the patient can verbalize their pain, use the NRS; otherwise, use the VAS to assess pain).
Immediately after surgery to postoperative 48 hours
Consumption of opioids
Time Frame: Immediately after surgery to postoperative 48 hours
Opioid consumption is measured by converting them into morphine equivalents.
Immediately after surgery to postoperative 48 hours
Postoperative nausea, vomiting
Time Frame: Immediately after surgery to postoperative 48 hours
Nausea is measured by scoring on a scale of 0-10. The higher the score, the more severe the symptom. Whether the patients vomit or not is observed and recorded.
Immediately after surgery to postoperative 48 hours
ICU stay
Time Frame: Immediately after surgery to ICU discharge(usually within about 5 days after surgery)
Determine how many days the participant stays in the ICU.
Immediately after surgery to ICU discharge(usually within about 5 days after surgery)
Hospital stay
Time Frame: Immediately after surgery to hospital discharge(usually within about 30 days after surgery)
Determine how many days the participant stays in the hospital.
Immediately after surgery to hospital discharge(usually within about 30 days after surgery)
Postoperative complications
Time Frame: Immediately after surgery to hospital discharge(usually within about 30 days after surgery)
Investigate all kinds of complications that occur after surgery.
Immediately after surgery to hospital discharge(usually within about 30 days after surgery)
Drug side effects
Time Frame: Immediately after surgery to hospital discharge(usually within about 30 days after surgery)
Investigate complications suspected to be side effects caused by the study drug.
Immediately after surgery to hospital discharge(usually within about 30 days after surgery)
Severity of POD
Time Frame: From immediately after surgery to 5 days after surgery
CAM-S(severity) will be utilized to assess the severity of POD. (*CAM-S is measured on 0-7 (short form) and 0-19 (long form) scale, and the higher the score, the greater the POD severity.)
From immediately after surgery to 5 days 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.
Korea University Guro Hospital

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.
Kyongbo Pharmaceutical Co.,Ltd

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: Heezoo Kim, MD, PhD, Korea University Guro Hospital

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.
June 15, 2023

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 23, 2025

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 23, 2025

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).
March 7, 2023

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.
April 17, 2023

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.
April 28, 2023

Study Record Updates

Last Update Posted (Estimated)

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 5, 2025

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.
August 28, 2025

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.
August 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.
  • 2023GR0023

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

The investigators have no plans yet to share individual participant data (IPD) with other researchers.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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