Cognition and Affective Research in China (CARE)

September 20, 2026 updated by: Xuanwu Hospital, Beijing

This is a prospective cohort study of patients with cognitive impairment mood disorders and behavioral disorders. Comprehensive baseline and longitudinal follow-up assessments include clinical and epidemiological data, cognitive function and neuropsychological assessments, laboratory measurements, and neuroimaging data, along with the collection of blood, urine, feces, and cerebrospinal fluid for biobanking. Multi-omics, multidimensional cognitive assessments, and multimodal neuroimaging data are integrated using statistical analyses to establish a comprehensive clinical database and biobank. The study aims to identify risk factors, elucidate mechanisms underlying the comorbidity of cognitive impairment and mood disorders, discover multimodal biomarkers, and improve early screening, risk prediction, and diagnosis

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.

Detailed Description

We conducted a prospective cohort study involving patients with cognitive impairment、 mood disorders and behavioral disorders .To address the challenges in the early diagnosis and intervention, comprehensive baseline assessments were conducted, including the collection of clinical and epidemiological data, cognitive function and neuropsychological assessments, laboratory measurements, and neuroimaging data. In addition, biological specimens, including blood, urine, feces, and cerebrospinal fluid, were collected and stored in a biobank for subsequent laboratory analyses. We followed participants longitudinally and repeated the comprehensive assessments at scheduled visits.. By integrating multi-omics platforms, multidimensional cognitive assessments, and multimodal neuroimaging analyses, together with statistical approaches including the chi-square test, analysis of variance (ANOVA), and logistic regression, a multidimensional cognitive impairment and affective cohort as well as a comprehensive clinical database and biobank were established. The ultimate objective is to identify risk factors for cognitive impairment and mood disorder spectrum diseases, elucidate the biological mechanisms underlying their comorbidity, identify multimodal biomarkers, and develop robust approaches for the early screening, risk prediction, and diagnosis of these disorders.

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 (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.
3000

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
        • Xuanwu Hospital

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with cognitive impairment, mood disorders, or behavioral disorders and Healthy controls

Description

Inclusion Criteria:

  • Participants who met the diagnostic criteria for cognitive impairment, mood disorders, behavioral disorders, or other related disorders according to the International Classification of Diseases, 11th Revision (ICD-11).

Exclusion Criteria:

  • 1、Participants with major organ failure (e.g., cardiac, hepatic, or renal failure), malignant tumors, or other conditions associated with a limited life expectancy that would preclude completion of the follow-up.

    2、Contraindications to magnetic resonance imaging (MRI), including claustrophobia; implantation of MRI-incompatible devices or metallic implants, such as cardiac pacemakers, aneurysm clips, prosthetic heart valves, cochlear implants, or other metallic foreign bodies; or any other clinical history or examination findings that, in the investigator's judgment, may pose a potential risk during MRI examination.

    3、Refusal to provide biological samples. 4、Refusal to provide written informed consent.

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

  • Observational Models: COHORT
  • Time Perspectives: PROSPECTIVE

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Healthy controls

Healthy volunteers without cognitive impairment, mood disorders, or other major neurological or psychiatric disorders.
Patients with cognitive impairment

Participants who met the diagnostic criteria for cognitive impairment or other related disorders according to the International Classification of Diseases, 11th Revision (ICD-11)
Patients with mood disorders

Participants who met the diagnostic criteria for mood disorders,or other related disorders according to the International Classification of Diseases, 11th Revision (ICD-11).
Patients with behavioral disorders

Participants who met the diagnostic criteria for behavioral disorders or other related disorders according to the International Classification of Diseases, 11th Revision (ICD-11).

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
Mini-Mental State Examination (MMSE)
Time Frame: Baseline, 1 years, 2years，3years and 4years

The Mini-Mental State Examination (MMSE) is a standardized cognitive screening instrument used to assess global cognitive function, including orientation, registration, attention and calculation, recall, and language. Higher scores indicate better overall cognitive performance.
Baseline, 1 years, 2years，3years and 4years
Montreal Cognitive Assessment
Time Frame: Baseline, 1 years, 2years，3years and 4years

The Montreal Cognitive Assessment (MoCA) is a standardized cognitive screening instrument used to assess multiple cognitive domains, including visuospatial and executive functions, naming, memory, attention, language, abstraction, and orientation. Higher scores indicate better overall cognitive performance
Baseline, 1 years, 2years，3years and 4years
Hamilton Depression Rating Scale
Time Frame: Baseline, 1 years, 2years，3years and 4years

The Hamilton Depression Rating Scale (HAM-D) is a clinician-administered instrument used to assess the severity of depressive symptoms, including mood, somatic symptoms, sleep disturbances, and psychological symptoms. Higher scores indicate greater depressive symptom severity.
Baseline, 1 years, 2years，3years and 4years
Hamilton Anxiety Rating Scale
Time Frame: Baseline, 1 years, 2years，3years and 4years

The Hamilton Anxiety Rating Scale (HAM-A) is a clinician-administered instrument used to assess the severity of anxiety symptoms, including psychological and physical symptoms of anxiety. Higher scores indicate greater anxiety symptom severity.
Baseline, 1 years, 2years，3years and 4years
Neuropsychiatric Inventory
Time Frame: Baseline, 1 years, 2years，3years and 4years

The Neuropsychiatric Inventory (NPI) is a standardized instrument used to assess the presence, frequency, and severity of neuropsychiatric symptoms, including delusions, hallucinations, agitation, depression, anxiety, apathy, disinhibition, irritability, aberrant motor behavior, sleep disturbances, and appetite or eating abnormalities. Higher scores indicate greater neuropsychiatric symptom burden.
Baseline, 1 years, 2years，3years and 4years

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
Change in Alzheimer's Disease-Related Protein Biomarkers
Time Frame: Baseline, 1 years, 2years, 3years and 4 years

Alzheimer's disease-related protein biomarkers, including amyloid-beta (Aβ) and tau, are measured to assess pathological changes associated with Alzheimer's disease. These biomarkers include measures of amyloid-beta and tau pathology, with higher biomarker levels indicating greater biomarker burden when applicable
Baseline, 1 years, 2years, 3years and 4 years
Change in Inflammatory Biomarkers
Time Frame: Baseline, 1 years, 2years，3years and 4years

Inflammatory biomarkers, including interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and C-reactive protein (CRP), are measured to assess systemic inflammatory status. Higher levels generally indicate greater inflammatory activity.
Baseline, 1 years, 2years，3years and 4years
Change in Structural MRI-Derived Neuroimaging Biomarkers
Time Frame: Baseline, 1 years, 2years，3years and 4years

Structural magnetic resonance imaging (MRI)-derived neuroimaging biomarkers are used to assess brain structural characteristics, including regional brain volumes and measures of brain atrophy. These biomarkers are derived from standardized structural MRI analyses and are used to characterize longitudinal changes in brain structure.
Baseline, 1 years, 2years，3years and 4years

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.
Xuanwu Hospital, Beijing

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.
October 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.
July 30, 2036

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.
July 30, 2036

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 13, 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 20, 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 22, 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 22, 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 20, 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

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.
  • CARE

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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