Incidence and Risk Factors of PostopeRativE Delirium in ICU in China (PREDICt)

December 30, 2021 updated by: Shanghai Zhongshan Hospital
Postoperative delirium (POD) is a common postoperative complication that can occur in patients of any age. POD brings great burden to patients and their families, as the following cognitive decline may persist for months to years to impede patients returning to previous life quality and employment. The PREDICt study aims to characterize the incidence and profiles of POD in ICU, and to find out risk factors, especially any are modifiable, and any have value for developing prediction model. Our final aim is to comprehensively and deeply explore the etiology of POD to guide prevention of delirium among postoperative patients.

Study Overview

Status

Status

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

Detailed Description

Delirium is an acute and fluctuating alteration of mental state characterized by a disturbance in attention, level of consciousness and cognition. Postoperative delirium (POD) is a common postoperative complication that can occur in patients of any age, from children to elderly. POD was proved to be associated with several worse outcome, including increased mechanically ventilated duration, hospital length of stay (LOS) and cost. Moreover, the each day with delirium is independently associated with an increased hazard of death by 10%. Although studies on delirium substantially increased in the past decade, many research gaps still exist in this area due to the heterogeneity of their results. First, the incidence varies broad range because the targeted population are different. In China, up to now, no large sample studies to investigate the incidence and risk factors of POD in ICU. Moreover, although there have been numerous studies exploring the potential risk factors of POD, most of them are still with inconclusive evidence. The Benzodiazepine use and blood transfusion administration are the only two modifiable factors with strong evidence. Hence, still needs further studies to focus on etiology of POD to find out modifiable and non-modifiable factors to verify the presumed factors. Since there is lack of effective treatments for POD, prevention remains the best strategy to cope with delirium. Predictive models that include delirium risk factors can guide us to early prevention of high risk patients. There were two high-quality studies on prediction models for ICU delirium, named PRE-DELIRIC model and E-PRE-DELIRIC model. However, both of the models are conducted in general ICU, did not fully consider the factors of surgery.

The PREDICt study aims to find out risk factors, especially any are modifiable, and any have value for developing prediction model. Our primary aim is to determine the incidence and severity of Post-Operative Delirium (POD) in ICU after surgery, and identify the associated outcomes and burdens of POD in ICU by evaluating the impact on postoperative outcome, ICU and hospital length of stay, medical expenses. Our secondary aim is to investigate the modifiable and non-modifiable risk factors for the occurrence of POD during ICU stay and develop delirium prediction model for ICU patients. Our final aim is to comprehensively and deeply explore the etiology of POD to guide prevention of delirium among postoperative patients.

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.
Observational

Enrollment (Anticipated)

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.
1000

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
      • Shanghai, China, 20032
        • Recruiting
        • 180 Fenglin Road
        • Contact:
        • Principal Investigator:
          • Yuxia Zhang, PhD

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

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients aged above 18 who are admitted to surgical SICUs after operation will be screened for eligibility.

Description

Inclusion Criteria:

  • Aged above 18
  • Surgical patients
  • Admitted to ICU after surgery

Exclusion Criteria:

  • Preoperative delirium or dementia patients
  • Unable to fully participate in delirium testing, including blind, deaf, illiterate or inability to understand Chinese
  • Undergoing surgery procedures do not require admission to SICU
  • Transfer to SICU from wards after surgery

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

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
Time Frame: up to 20 days postoperatively

Investigators screen delirium by CAM-ICU twice a day, each time during day and night.

Investigators defined patients have delirium if they had at least one positive screening during ICU stay.
up to 20 days postoperatively

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 postoperative delirium
Time Frame: up to 20 days postoperatively
Assess by CAM-ICU-7 if CAM-ICU is positive. Categorized as no delirium: 0-2, mild to moderate delirium: 3-5, and severe delirium: 6-7.
up to 20 days postoperatively
duration of postoperative delirium
Time Frame: up to 20 days postoperatively
Defined as time (in days) from the first positive CAM-ICU until the beginning of two consecutive days of negative CAM-ICU.
up to 20 days postoperatively

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.
Shanghai Zhongshan 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: Yuxia Zhang, Fudan University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

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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 1, 2018

Primary Completion (ANTICIPATED)

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 1, 2022

Study Completion (ANTICIPATED)

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 1, 2023

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, 2018

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.
October 9, 2018

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.
October 12, 2018

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.
January 3, 2022

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.
December 30, 2021

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.
December 1, 2021

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.
  • 2018ZSLC08

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Study protocol has been published in Journal of advanced nursing

IPD Sharing Time Frame

Estimated from 2019

IPD Sharing Access Criteria

Study protocol has been published in Journal of advanced nursing

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP

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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