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Schizophrenia / Schizoaffective DisorderNCT04159662

Brain Imaging of Cognition Inn Schizophrenia and Depression

An observational study of Schizophrenia / Schizoaffective Disorder and Depression / Major Depressive Disorder, run by The Royal Ottawa Mental Health Centre at 1 site in Canada.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Schizophrenia and depression are among the most disabling disorders in all of medicine. Cognitive deficits play a key role in patients' disability, affecting their capacity to contribute actively to society by sustaining employment or academic activity. Read more about this study

Who is it for?
Ages 18 to 60 years
How many people
90 participants
Where
1 siteCanada
Study dates
12 Dec 2019to 1 Oct 2026
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Study population: Individuals with an official diagnosis of: Schizophrenia, Schzioaffective or Major Depressive Disorders.

Who may be able to join

  • age 18-60 years
  • current Intelligence Quotient (IQ) > 70 as measured by the Wechsler Abbreviated Scale of Intelligence (WASI)
  • the ability to read and speak fluent English
  • a diagnosis of schizophrenia, schizoaffective or major depression disorder
  • stable medication for more than one month

Who cannot join

  • significant neurological or other medical disorders that may produce cognitive impairment
  • a recent history of substance abuse or dependence (within the past 3 months)
  • any magnetic resonance imaging (MRI) contraindications (e.g. metallic head implant, history of seizure, pacemaker)
  • decisional incapacity requiring a guardian
  • taking medications that are rated as Anticholinergic Burden (ACB) Score 3 (severe) or taking benzodiazepines on a daily basis
  • Finally, participants could not be severely symptomatic at the time of study enrolment to ensure that they could understand and complete all study assessments. This criterion was defined as a score ≤34 on the Montgomery-Åsberg Depression Rating Scale (MADRS; Montgomery \& Åsberg, 1979) for the MDD group and a score ≤95 on the Positive and Negative Syndrome Scale (PANSS; Kay et al., 1987) for the SZ group.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Canada1 site, 1 recruiting
  • Royal Ottawa Mental Health Center

    Ottawa, Ontario, K1Z 7K4

    Synthia Guimond, PhD, 6137226521 ext. 6586, Synthia.Guimond@theroyal.ca

    Recruiting

Other trials in Canada

About this study

Schizophrenia and depression are among the most disabling disorders in all of medicine. Cognitive deficits play a key role in patients' disability, affecting their capacity to contribute actively to society by sustaining employment or academic activity. Moreover, cognitive difficulties tend to persist even after the stabilization of other clinical symptoms. Verbal memory and emotion regulation are two important cognitive domains that are impaired in schizophrenia and depression and are associated with patients' functional outcomes. In this study, brain imaging is used to investigate the brain mechanisms underlying these cognitive deficits in these populations.

Read the detailed description

This study uses Functional Magnetic Resonance Imaging (fMRI) which is a technique that takes a 3D picture of the brain using magnetic fields. It allows researchers to estimate how active different regions of the brain are. The aim of this study is to use fMRI to better understand the cognitive problems that individuals living with schizophrenia, schizoaffective disorder, or depression experience.

The study will involve three visits at The Royal's Institute of Mental Health Research in Ottawa, Canada. Each visit will last about 2.5 hours long.

Visits 1 and 2: Participants are asked to fill out several questionnaires on a computer. Participants are also asked to answer some questions about their current and past mental health as well as perform some tasks involving general thinking skills.

Visit 3: Participants will complete a brain scan using fMRI. Throughout the experiment, participants will perform three short tasks in the fMRI scanner. Participants will use buttons to answer some questions in response to some words and pictures.

Medical subject headings
Schizophrenia, Psychotic Disorders, Depression, Depressive Disorder, Major

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT04159662
Study groupRoleWhat they receive
Individuals with Schizophrenia or Schzioaffective DisordersClinical group
Individuals with Major Depressive DisorderClinical group
Healthy IndividualsControl group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Measuring brain activity using resting-state and task-based functional MRI

    To better understand the mechanisms underlying cognitive problems in our populations of interest

    Measured: Final Visit (Visit 3)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Nov 2019
  2. Study start12 Dec 2019
  3. Primary completion1 Oct 2026 (estimated)
  4. Study completion1 Oct 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Cross-sectional
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04159662
Sponsor's protocol ID
2018037
Status last verified
Mar 2026
First submitted
25 Oct 2019
Last updated
23 Mar 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: De-identified data collected from this study may be shared with other researchers at the Royal's Institute of Mental Health Research for analyses and re-analyses. Variables of the study and scripts used for analyses will be made available to the public. De-identified data will also be shared with the general public upon request. Data that can connect with participants' identity will NOT be used or shared for analyses.

Questions about this trial

What is this clinical trial studying?

An observational study of Schizophrenia / Schizoaffective Disorder and Depression / Major Depressive Disorder, run by The Royal Ottawa Mental Health Centre at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 23 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Synthia Guimond, PhD (6137226521 ext. 6586, Synthia.Guimond@theroyal.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measuring brain activity using resting-state and task-based functional MRI (time frame: Final Visit (Visit 3)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Mar 2026.

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