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

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

298

Phase

  • 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

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
Intervention / Treatment
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

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

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

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

The Second Affiliated Hospital of Chongqing Medical University

Investigators

  • 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)

June 1, 2026

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 30, 2026

Study Registration Dates

First Submitted

June 9, 2026

First Submitted That Met QC Criteria

June 25, 2026

First Posted (Actual)

June 29, 2026

Study Record Updates

Last Update Posted (Actual)

June 29, 2026

Last Update Submitted That Met QC Criteria

June 25, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID 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.

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