Presynaptic Imaging in Major Depressive Episodes After COVID-19

Recruiting now

Conditions studied: Long COVID, Major Depressive Disorder, Major Depressive Episode

In brief

The goal of this observational study focuses on understanding and addressing a subset of persistent neuropsychiatric symptoms occurring within 3 months after mild to moderate COVID-19 infection (COVID-DNP). COVID-DNP encompasses major depressive episodes (MDE) with or without additional neuropsychiatric symptoms.

Key facts

Study ID

NCT06086366

Run by

Centre for Addiction and Mental Health

People needed

90

Starts

2023-08-22

Expected to finish

2028-09-10

Last updated by the study team

2026-02-11

Who can join

Age: 18 and older, up to 75. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• New onset MDE within 3 months after mild or moderate COVID-19, with MDE verified by the research version SCID for DSM 5. See "Positive COVID-19 diagnosis" listed after inclusion/exclusion criteria for a description of how this is determined.
• Age 18 to 75.
• Good general physical health with no active medical conditions based on self-report (except migraine or PASC).

You may not qualify if…

• Use of antidepressants in the previous month (6 weeks for fluoxetine).
• Use of stimulant medication affecting dopamine release in the previous month
• Use of antipsychotics in the previous month
• History of neurological disease (except migraine, and PASC) based on self-report
• Use of medications or herbal products or natural health products with central nervous system effects in past 2 weeks based on self-report
• Presence of cigarette smoking in the past two months, based on self-report
• Lifetime diagnosis of severe Substance or Alcohol Use Disorder, or diagnosis of mild to moderate Substance or Alcohol Use Disorder in the past two years, based on self-report and verified by the Research Version of Structured Clinical Interview for Diagnostic and Statistical Manual-5 (SCID-5-RV)
• Use of recreational drugs, including marijuana, in the past two months, based on self-report and verified by the Research Version of Structured Clinical Interview for Diagnostic and Statistical Manual-5 (SCID-5-RV)
• Positive urine drug or cotinine screen at any timepoint during the study
• History of psychotic symptoms secondary to schizophrenia, schizophreniform, bipolar disorder, or brief psychotic disorder prior to COVID-19, based on self-report and verified by the Research Version of Structured Clinical Interview for Diagnostic and Statistical Manual-5 (SCID-5-RV)
• Currently pregnant, based on self-report or positive pregnancy test at any timepoint during the study, in females (in our PET Centre females up to 65 years of age are given a urine pregnancy test prior to every PET scan)
• Breastfeeding (for females)
• Current disorders of coagulation, blood or ongoing use of anticoagulant medication, based on self-report
• Claustrophobia, based on self-report
• Weight over 400lbs and height over 7ft (requirements for fitting in the scanners and hospital gowns)
• Presence of metal implant, object or electrical devices that are contraindicated for MRI, based on self-report
• Severe allergic reaction to alcohol

Where it is running

• Centre for Addiction and Mental Health — Toronto, Ontario, Canada (enrolling)

Full record on ClinicalTrials.gov

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