Low-dose Droperidol for Prevention of Postoperative Delirium in Elderly Patients After Non-cardiac Surgery

August 10, 2026 updated by: RenJi Hospital

Low-dose Droperidol for Prevention of Postoperative Delirium in Elderly Patients After Non-cardiac Surgery: A Randomized, Double-blind, Placebo-controlled Trial

The aim of this multicenter, prospective, randomized, double-blind and large sample study is to explore the preventive effect of low-dose droperidol on POD in elderly patients after non-cardiac surgery, providing new approach for reducing the incidence of POD and improving the prognosis and quality of life.

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.
797

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.
  • Not Applicable

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
      • Beijing, China
        • Cancer Hospital Chinese Academy of Medical Sciences
      • Beijing, China
        • Peking University International Hospital
      • Chongqing, China
        • The First Affiliated Hospital of Chongqing Medical University
      • Shanghai, China
        • Changhai Hospital
    • Anhui
      • Hefei, Anhui, China
        • The First Affiliated Hospital of Anhui Medical University
    • Henan
      • Zhengzhou, Henan, China
        • Henan Provincial People Hospital
    • Shanghai Municipality
      • Pudong, Shanghai Municipality, China, 200127
        • Renji Hospital, Shanghai Jiaotong University School of Medicine
    • Shanxi
      • Taiyuan, Shanxi, China
        • Second Hospital of Shanxi Medical University
    • Sichuan
      • Chengdu, Sichuan, China
        • Sichuan Academy of Medical Sciences - Sichuan Provincial People's Hospital (SAMSPH)

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

65 years and older (Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age≥65 years
  • American Society of Anesthesiologists (ASA): I-III
  • Planning to undergo elective non-cardiac surgery under general anesthesia with endotracheal intubation, including digestive, orthopedic, urologic and gynecological surgery
  • Estimated operation time more than 2 hours
  • Not expected to be admitted to ICU postoperatively
  • Proficient in Chinese
  • Informed consent

Exclusion Criteria:

  • Morbid obesity with BMI >35 kg/m2;
  • History of psychological and neurological diseases, such as depression, schizophrenia, epilepsy, severe central nervous system depression, Parkinson's disease, Alzheimer's disease, myasthenia gravis, basal ganglia disease, etc;
  • Corrected QT (QTc) of electrocardiogram> 500ms;
  • Preoperative liver insufficiency (Child Pugh grade C);
  • End-stage renal disease requiring dialysis;
  • Severe heart failure [Metablic equivalent (METs)<4];
  • Allergic to droperidol;
  • Inability to communicate due to coma or dementia in preoperative period;
  • Preoperative delirium, assessed by 3D-CAM;
  • More than three standard alcoholic drinks per day (≈10 g alcohol , equivalent to 50 g of strong Chinese spirits);
  • Participating in conflicting clinical trials;
  • Expected to have an additional operation within 7 days after the index operation.

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.
Experimental: Experimental group
Droperidol 1.25mg/0.5ml
Drug: Droperidol Injection
About 30min before the end of operation, Droperidol 1.25mg/0.5ml will be administered by intravenous injection.
Other Names:
  • D
Placebo Comparator: Placebo group
Normal saline 0.5ml
Drug: Saline
About 30min before the end of operation, Normal saline 0.5ml will be administered by intravenous injection.
Other Names:
  • S

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 delirium within 7 days after operation
Time Frame: 7 days after operation
Incidence of delirium within 7 days after operation
7 days after operation

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
Severity of delirium
Time Frame: From the end of operation to 7 days after opertation
Severity of Postoperative delirium
From the end of operation to 7 days after opertation
Delirium-free days
Time Frame: From the end of operation to 7 days after opertation
Delirium-free days
From the end of operation to 7 days after opertation
Postoperative hospital duration
Time Frame: From end of operation to discharge, an average of 1 week
Postoperative hospital duration
From end of operation to discharge, an average of 1 week
cognitive function at 30 days and 6 months
Time Frame: 30 days and 6 months after surgery
cognitive function at 30 days and 6 months
30 days and 6 months 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.
RenJi Hospital

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.
  • Study Chair: Diansan Su, MD,PHD, First affiliated Hospital of Zhejiang University
  • Principal Investigator: Ziyu Zhu, MD,PHD, Renji Hospital, Jiaotong University, School of medicine

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.
November 21, 2022

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.
December 20, 2024

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.
July 30, 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).
May 23, 2022

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.
June 1, 2022

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.
June 2, 2022

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.
August 12, 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.
August 10, 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.
August 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.
  • DECPOD-DP

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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