NCT06565936

Brief Summary

Depression, a common psychological disorder, is characterized by persistent low mood, loss of interest, and anhedonia, leading to significant dysfunctions and a high suicide risk. Its pathogenesis remains challenging, with recent focus on neuroinflammation-a chronic immune response in the central nervous system-as a potential contributor. PET imaging, using tracers like 18F-FDG and \[18F\]DPA-714, can visualize metabolic and neuroinflammatory changes. Combining these two tracers can explore the correlation between neuroinflammation and glucose metabolism in depression, further elucidating its possible mechanisms. We hypothesize that microglial activation in depression, especially in major gray matter regions of interest (prefrontal cortex, anterior cingulate cortex, and insula) and 12 additional regions and subregions, will show higher TSPO levels and increased glucose metabolism compared to the control group.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P25-P50 for not_applicable depression

Timeline
7mo left

Started Aug 2024

Typical duration for not_applicable depression

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress77%
Aug 2024Dec 2026

First Submitted

Initial submission to the registry

August 20, 2024

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 22, 2024

Completed
1 day until next milestone

Study Start

First participant enrolled

August 23, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2026

Expected
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

November 12, 2024

Status Verified

August 1, 2024

Enrollment Period

1.9 years

First QC Date

August 20, 2024

Last Update Submit

November 10, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Assessment of baseline and follow up regional brain TSPO levels and cerebral metabolism using PET/MRI

    TSPO values for the major gray matter regions of interest (prefrontal cortex, anterior cingulate cortex, and insula) and 12 additional regions and subregions were observed in patients with recurrent and first-episode depression compared to controls.Estimates of brain TSPO concentrations measured with PET will serve as a marker for neuroinflammation. Variation of the regional cerebral glucose consumption and TSPO-PET measures will be compared between three groups.

    for 2 years

Secondary Outcomes (5)

  • Mini-Mental State Evaluation (MMSE)

    for 2 years

  • Scores of Hamilton Depression Scale

    for 2 years

  • Scores of Hamilton Anxiety Scale

    for 2 years

  • Pittsburgh Sleep Quality Index

    for 2 years

  • Correlation between microglial activation and cerebral metabolism in the prefrontal cortex, anterior cingulate cortex, insula, and other regions of interest, and the severity of disease in patients.

    for 2 years

Study Arms (3)

Recurrent depression patients group

EXPERIMENTAL

Evaluation of neuroinflammation and cerebral metabolism in the prefrontal cortex, anterior cingulate cortex, insula, and other brain regions of interest in patients with recurrent depression.

Radiation: PET scan with tracer injection [18F] DPA-714 or [18F]F-FDG

First-episode depression patients group

EXPERIMENTAL

Evaluation of neuroinflammation and cerebral metabolism in the prefrontal cortex, anterior cingulate cortex, insula, and other brain regions of interest in patients with first episode depression.

Radiation: PET scan with tracer injection [18F] DPA-714 or [18F]F-FDG

Healthy controls group

OTHER

Evaluation of neuroinflammation and cerebral metabolism in the prefrontal cortex, anterior cingulate cortex, insula, and other brain regions of interest in healthy controls.

Radiation: PET scan with tracer injection [18F] DPA-714 or [18F]F-FDG

Interventions

Brain PET/MRI imaging will be conducted following the administration of \[18F\] DPA-714 or \[18F\]F-FDG. The radiopharmaceuticals are given intravenously in doses that are safe for the human body, with minimal quantities to reduce potential effects. Additionally, the irradiation levels are kept low, ensuring the procedure is safe and reliable for patients.

First-episode depression patients groupHealthy controls groupRecurrent depression patients group

Eligibility Criteria

Age35 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • For all groups :
  • No alcohol or psychoactive substances such as coffee had been consumed in the 24 hours prior to the examination
  • MMSE≥24 points,MOCA≥26 points
  • No anti-infective drugs in the past 1 month, no cold, fever or other infection history in the past 2 weeks
  • Patients with diabetes had fasting controlled below 9.0mmol/L before the examination
  • Volunteer to participate in the study and sign the informed consent
  • For Recurrent depression patients:
  • Meet the Diagnostic criteria for recurrent major depressive disorder in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V)
  • Age 35-85 years old, gender is not limited
  • HAMD≥8 points
  • For first episode depression Patients:
  • Gender, age and education level were matched with the recurrent depression group
  • Meet the Diagnostic criteria for the first episode of depressive disorder in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V)
  • HAMD≥8 points
  • For controls:
  • +4 more criteria

You may not qualify if:

  • Have a history of organic mental disorders or other mental disorders
  • A family history of hereditary diseases
  • Persons with mental retardation or dementia
  • A history of psychoactive substance abuse
  • Can not cooperate with/complete the psychological examination scale
  • Previously found serious physical diseases (heart, brain, liver, lung and kidney)
  • MRI contraindications, abnormalities found in head CT or MRI
  • A history of drug or alcohol abuse
  • Have a history of metabolic diseases such as hyperthyroidism, hypothyroidism,and rheumatic diseases
  • are in the state of pregnancy or breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The First Affiliated Hospital of Dalian Medical University

Dalian, Liaoning, 116000, China

RECRUITING

MeSH Terms

Conditions

Depression

Interventions

Magnetic Resonance SpectroscopyProduct LabelingN,N-diethyl-2-(2-(4-(2-fluoroethoxy)phenyl)-5,7-dimethylpyrazolo(1,5-a)pyrimidin-3-yl)acetamide

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Intervention Hierarchy (Ancestors)

Spectrum AnalysisChemistry Techniques, AnalyticalInvestigative TechniquesProduct PackagingIndustryTechnology, Industry, and Agriculture

Study Officials

  • Huimin Zhang

    The First Affiliated Hospital of Dalian Medical University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 20, 2024

First Posted

August 22, 2024

Study Start

August 23, 2024

Primary Completion (Estimated)

August 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

November 12, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations