Effect of Ciprofol Injection on Postoperative Cognitive Function

June 25, 2026 updated by: Guangyou Duan, The Second Affiliated Hospital of Chongqing Medical University

A Controlled Study on the Impact of Ciprofol Injection on Postoperative Cognitive Function and Its Mechanism

This study aims to explore the effect of ciprofol on the postoperative cognitive function of inpatients undergoing gastrointestinal endoscopy examination, to compare the anesthetic effects and differences in adverse reactions of propofol and ciprofol in gastrointestinal endoscopy , to compare the incidence of postoperative cognitive decline in patients undergoing gastrointestinal endoscopy examination between propofol and coprofol, and to optimize the anesthesia medication regimen for patients undergoing gastrointestinal endoscopy examination.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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.

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.
298

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 Locations

  • China
    • Chongqing Municipality
      • Chongqing, Chongqing Municipality, China, 400010
        • The Second Affiliated Hospital of Chongqing 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

Yes

Description

Inclusion Criteria:

  1. Age: 18-65 years old, ASA grade I-Ⅲ, BMI index: 18.5-30 kg/m ²
  2. Patients who plan to undergo gastroscopy or colonoscopy in our hospital
  3. The preoperative assessment of the MOCA scale in patients scheduled for elective surgery indicated normal cognitive function
  4. dextromanuality
  5. Voluntarily participate in this study and sign the informed consent form

Exclusion Criteria:

  1. Pregnant or lactating women
  2. Patients who have had cardiovascular and cerebrovascular accidents in the past
  3. Patients with severe diseases of the cardiovascular system, respiratory system and liver and kidney system
  4. Patients with obstructive sleep apnea syndrome
  5. Patients with concurrent neurological or mental system diseases, or those with incomplete intellectual development
  6. Patients allergic to ciprofol or propofol drugs
  7. Patients with braking, visual/auditory impairments
  8. Patients with psychotropic drug addiction or alcohol dependence
  9. Patients who themselves or their attending physicians refused to participate in the 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: 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: Experimental group (ciprofol)
patients in the Ciprofol group will use ciprofol to complete the painless gastroscopy and colonoscopy treatment.
Drug: Ciprofol group
patients in the Ciprofol group will use ciprofol to complete the painless gastroscopy and colonoscopy treatment.
Active Comparator: Control group (propofol)
patients in the propofol group will use propofol to complete the painless gastroscopy and colonoscopy treatment.
Drug: Propofol group
patients in the propofol group will use propofol to complete the painless gastroscopy and colonoscopy treatment.

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
The difference in the incidence of cognitive function decline between ciprofol and propofol in patients undergoing painless gastroscopy and colonoscopy treatment
Time Frame: From the time the patient was enrolled in the study to 24 hours after the treatment
From the time the patient was enrolled in the study to 24 hours after the treatment

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
Intraoperative and postoperative adverse events
Time Frame: From the time the patient enters the operating room to 24 hours after the treatment
From the time the patient enters the operating room to 24 hours after the treatment
Blood Pressure (mmHg)
Time Frame: From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Non-invasive BP measured by cuff after entry and intermittently during surgery. Hypotension: SBP decrease >30% from baseline; Hypertension: SBP increase >30% from baseline.
From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Heart Rate (beats/min)
Time Frame: From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Read from monitor. Bradycardia: <50 bpm or decrease ≥25% from baseline; Tachycardia: >100 bpm or increase ≥25% from baseline.
From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Respiratory Rate (breaths/min)
Time Frame: From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Read from monitor or counted over 1 min. Respiratory depression: <8 breaths/min lasting >30 sec.
From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Oxygen Saturation (Pulse Oximetry)
Time Frame: From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)
Read from monitor. Hypoxemia: SpO2 <90% lasting >15 sec.
From entering the operating room to leaving it (before anesthesia, after induction, and 5 minutes、10 minutes 、20 minutes 、30 minutes 、40 minutes、50 minutes、60 minutes after the operation began)

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The dosage of propofol/ciprofol used
Time Frame: The dosage of drugs used during this period from anesthesia induction to the end of anesthesia (perioperative period) (approximately 25 - 60 minutes)
The dosage of drugs used during this period from anesthesia induction to the end of anesthesia (perioperative period) (approximately 25 - 60 minutes)
The patient's stay time in the PACU（Post-Anesthesia Care Unit）
Time Frame: up to 24 hours
The period from when the patients enter the PACU until they leave the PACU
up to 24 hours

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.
The Second Affiliated Hospital of Chongqing Medical 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.
  • Study Director: Guangyou Duan, The Second Affiliated Hospital of Chongqing Medical 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 (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 1, 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.
December 30, 2026

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.
December 30, 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).
June 9, 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.
June 25, 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.
June 29, 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.
June 29, 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.
June 25, 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.
June 1, 2026

More Information

Terms related to this study

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.
  • 2026-166

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings