The Effect of Ciprofol Versus Propofol Anesthesia on Postoperative Neurological Complications

September 1, 2026 updated by: Yuming Peng, Beijing Tiantan Hospital

The Effect of Ciprofol Versus Propofol Anesthesia on Postoperative Neurological Complications in Patients With Increased Intracranial Pressure Caused by Intracranial Tumors: a Randomized Controlled Trial

Postoperative delirium and postoperative ischemic stroke are common neurological complications in clinical practice. The incidence of these complications is further increased in patients undergoing neurosurgical procedures. Intraoperative hypotension and burst suppression are high-risk factors for postoperative delirium and ischemic stroke. Ciprofol, as a new intravenous general anesthetic, can significantly reduce the occurrence of hypotension and decrease burst suppression compared with propofol. However, no study has demonstrated that the application of ciprofol in neurosurgical patients can improve patient prognosis. Therefore, the purpose of this study is to explore the impact of using ciprofol or propofol in anesthesia induction and maintenance on postoperative neurological complications in patients with high intracranial pressure.

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.

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.
434

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 Municipality
      • Beijing, Beijing Municipality, China, 100070
        • Beijing Tian Tan Hospital, Capital 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

No

Description

Inclusion Criteria:

  • American Society of Anesthesiologists physical status I to III

  • Patients scheduled for elective surgery for supratentorial intracranial tumors, with imaging findings meeting the following criteria:

    1. Displacement of midline structures (e.g., septum pellucidum, pineal gland, falx cerebri) by ≥5 mm due to the tumor's mass effect or peritumoral edema;
    2. . Compression or deformation of the ventricular system, particularly symmetric or asymmetric narrowing of the lateral ventricles and the third ventricle;
    3. . Shallowed or absent sulci, fissures, and cisterns, with the subarachnoid spaces compressed due to brain tissue swelling or mass effect
  • Obtain written informed consent

Exclusion Criteria:

  • History of transient ischemic attack or cerebral infarction within the past one year
  • Patients with a history of psychiatric or neurological disorders (such as depression, schizophrenia, epilepsy, Parkinson's disease, or severe myasthenia gravis) or those taking antipsychotic medications, antidepressants, glucocorticoids, as well as patients with alcohol abuse or illicit drug abuse
  • Personal history of intellectual disability or a preoperative Mini-Mental State Examination score indicating impaired cognitive function (defined as follows based on the subject's educational level: illiterate < 17 points, elementary school education < 20 points, middle school education or higher < 24 points), language disorders, or inability to cooperate with the researcher during psychiatric assessment
  • Uncontrolled hypertension, diabetes, or a history of hematological disorders
  • Preoperative severe hepatic or renal insufficiency
  • Contraindications to the use of cyclopropane and propofol

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: Ciprofol group
Participants will undergo anesthesia induction by ciprofol, and receive total intravenous anesthesia by ciprofol to maintain.
Drug: Ciprofo
During the induction of anesthesia, a single bolus injection of 0.4mg/kg of ciprofol was administered for rapid sequence induction. During the period of anesthesia maintenance, it was continuously infused at a dose of 0.4 - 2.4 mg/kg/h.
Other: Propofol group
Participants will undergo anesthesia induction by propofol, and receive total intravenous anesthesia by propofol to maintain.
Drug: Propofol
During the induction of anesthesia, a single bolus injection of 2 mg/kg of propofol was administered for rapid sequence induction. During the period of anesthesia maintenance, it was continuously infused at a dose of 2-5 mg/kg/h.

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
The incidence of postoperative delirium
Time Frame: 1 day before surgery to the 5th day after surgery
Postoperative delirium is assessed by the combination of the Richmond Anxiety Scale (RASS) and the Confusion assessment method for intensive care unit (CAM-ICU) or the 3-minute diagnostic interview for CAM (3D-CAM) as applicable.
1 day before surgery to the 5th day 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.
Beijing Tiantan 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.
  • Principal Investigator: Yuming Peng, MD,Ph.D, Beijing Tiantan 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 (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.
September 7, 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.
September 30, 2028

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.
March 31, 2029

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).
September 1, 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 1, 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 8, 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 8, 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 1, 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.
September 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.
  • 20260831

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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