Major Depressive Disorder (MDD)NCT06732089
Digital Interventions for Adults with Treatment-Resistant Depression: a Pilot Study
An observational study of Major Depressive Disorder (MDD) and Major Depressive Episode, run by Unity Health Toronto at 1 site in Canada.
Trial summary
The goal of this observational study is to learn about remote mental health monitoring technology for adults with treatment-resistant depression. The main question it aims to answer is: are digital mental health monitoring tools (an electronic data capture platform and wearable device (e.g., smartwatch or smart-ring))… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Major Depressive Disorder (MDD), Major Depressive Episode, Treatment-Resistant Major Depressive Disorder
- Type of treatment
- Injection or infusion
- How many people
- 200 participants
- Where
- 1 siteCanada
- Study dates
- 16 Dec 2024to Dec 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Adults suffering from treatment-resistant depression (TRD) who are being treated in the Interventional Psychiatry Program at St. Michael's Hospital, Unity Health Toronto. Patients have a confirmed diagnosis of Major Depressive Disorder (MDD) and are experiencing a Major Depressive Episode (MDE) at the time of enrollment.
Who may be able to join
- Adults (aged 18+) who are capable of giving informed consent
- Patients meeting diagnostic criteria for major depressive disorder (MDD) without psychotic symptoms according to the DSM-5
- Currently experiencing a major depressive episode (MDE)
- Montgomery-Asperg Depression Rating Scale (MADRS) score greater than 20 at screening
- Patients meeting criteria for treatment-resistant depression (TRD): failure of 2 or more adequate trials of antidepressant therapy of adequate dose and duration during the current episode
- Enrollment in one of the treatment modalities (rTMS, IVK, or ECT) at the Interventional Psychiatry Program at St. Michael's Hospital, Unity Health Toronto
- Ownership of a smartphone (for participants using wearable devices)
Who cannot join
- Individuals without Internet access (required to access study platforms)
- Medication changes, aside from the treatment received through the IPP, one month (28 days) before screening, or during the entire duration of treatment (variable based on treatment arm)
- Participants who do not speak English fluently enough to successfully communicate study information, answer questions accurately, and/or obtain informed consent
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
- Recruiting
St. Michael's Hospital, Unity Health Toronto
Toronto, Ontario, M5B 1W8
Dr. Venkat Bhat, M.D., F.R.C.P.C., 416-360-4000 ext. 76404, venkat.bhat@unityhealth.to
Dr. Karisa Parkington, Ph.D., 416-360-4000 ext. 76228, karisa.parkington@unityhealth.to
About this study
Official title: Determining the Feasibility of Digital Interventions for Adults with Treatment-Resistant Depression
The goal of this observational study is to learn about remote mental health monitoring technology for adults with treatment-resistant depression. The main question it aims to answer is: are digital mental health monitoring tools (an electronic data capture platform and wearable device (e.g., smartwatch or smart-ring)) feasible to implement alongside clinical treatment for depression? The secondary aim of this study is to inform preliminary clinical parameters for larger, definitive studies.
Participants receiving neuropsychiatric treatment (repetitive transcranial magnetic stimulation, intravenous ketamine, or electroconvulsive therapy) as part of their regular medical care for treatment-resistant depression in the Interventional Psychiatry Program will have their clinical assessment data entered into a digital platform and will wear an accessory-based wearable device for the duration of treatment.
Read the detailed description
This observational study with retrospective data analysis is conducted in patients with treatment-resistant depression (TRD) undergoing neuropsychiatric clinical treatment (rTMS, IVK, or ECT) in the Interventional Psychiatry Program (IPP) at St. Michael's Hospital. Participants will have scores from a self-report assessment of anxiety (GAD-7) and a self-report (PHQ-9) or clinician-administered (MADRS) assessment of depression completed as part of clinical care entered into the Research Electronic Database Capture (REDCap) web-based platform after each treatment session. This will facilitate retrospective analysis of mental health symptom change and treatment response over the course of treatment. Participants will also have the opportunity to wear an accessory-based wearable device (e.g., smartwatch or ring) throughout the course of treatment to passively capture physiological biometrics of physical and mental health (e.g., heart rate, temperature, sleep, activity). This two-year pilot study aims to recruit a total of 200 participants with TRD to retrospectively assess the feasibility and efficacy of integrating remote health sensing and monitoring platforms in psychiatric clinical care.
- Conditions
- Major Depressive Disorder (MDD), Major Depressive Episode, Treatment-Resistant Major Depressive Disorder
- Keywords
- pilot study, digital health monitoring, wearable device, remote measurement-based care, treatment-resistant depression, observational study, feasibility study, electronic data capture
- Medical subject headings
- Depressive Disorder, Major, Depressive Disorder, Treatment-Resistant
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| rTMS | Participants in this group are enrolled to recieve rTMS treatment as part of their clinical care in the Interventional Psychiatry Program. | |
| IVK | Participants in this group are enrolled to receive intravenous ketamine (IVK) treatment as part of their clinical care in the Interventional Psychiatry Program. | |
| ECT | Participants in this group are enrolled to receive electroconvulsive therapy (ECT) as part of their clinical care in the Interventional Psychiatry Program. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Feasibility
To determine the feasibility of using a web-based digital platform and wearable devices to collect active and passive data, respectively, among adults receiving clinical treatment for treatment-resistant depression. This will be measured by: number of recruitments (minimum threshold of 6-7 participants/month), recruitment rates (relative to invited patient-participants; minimum threshold of 80%), dropout rates (maximum threshold of 30%), reasons for dropout (qualitative), and data completion/adherence rates (minimum threshold of 70%).
Measured: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Secondary outcomes (3)
Longitudinal Changes in Symptom Presentation
To quantify changes in active (clinical symptoms) and passive (physiological) measures of physical (activity) and mental health (depression, anxiety, sleep) over time. Active data will focus on anxiety and depression symptoms across treatment, as reported on the GAD-7, PHQ-9, and MADRS. Passive data will focus on physiological biometrics (e.g., heart rate, respiration, step count, metabolic equivalency, body temperature, sleep staging, skin conductance response) captured by the wearable devices.
Measured: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Predicting Treatment Response, Remission, and Relapse
To model and predict the likelihood of a patient achieving anxiety/depression treatment response (reduction greater than or equal to 50% on clinical assessment), remission (assessment score less than clinical threshold), and relapse (assessment score greater than clinical threshold after achieving remission) captured through active self-/clinician-administered assessments, based on longitudinal active and passive data.
Measured: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Personalized Digital Phenotype Profiling (pDPP)
To construct pDPPs (a.k.a. digital fingerprints) for each participant based on longitudinal active and passive data. This will be achieved using machine learning (ML), artificial intelligence (AI), and advanced data analytic principles.
Measured: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Dec 2024
- Study start16 Dec 2024 (estimated)
- Primary completionOct 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Major Depressive Disorder (MDD)Studies of the same condition, open and under way.
- More trials run by Unity Health TorontoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Case only
- Time perspective
- Retrospective
- Enrolment
- 200 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Unity Health Toronto
- Sponsor type
- University, hospital or other
- Collaborators
- University of Toronto, Toronto Metropolitan University
- Responsible party
- Sponsor
- Investigators
- Dr. Srihar Krishnan, Ph.D., Peng., F.C.A.E., Study chair, Toronto Metropolitan UniversityDr. Wendy Lou, Ph.D., Study chair, Dalla Lana School of Public Health, University of Toronto
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06732089
- Sponsor's protocol ID
- 21-274
- Other IDs
- Miner's Lamp Foundation
- Status last verified
- Dec 2024
- First submitted
- 9 Dec 2024
- Last updated
- 13 Dec 2024
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Parkington K, Aguilar RJ, Lee GH, Rueda A, Adamsahib F, Al-Hassan M, Famuditimi S, Menzies P, Lin Q, Lou W, Krishnan S, Bhat V. Digital health monitoring for adults with treatment-resistant depression: Observational feasibility study protocol. PLoS One. 2025 Oct 24;20(10):e0333484. doi: 10.1371/journal.pone.0333484. eCollection 2025.
PubMed 41134764
Study at a glance
From the registry record, last updated by the sponsor on 13 Dec 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Determining the Feasibility of Digital Interventions for Adults with Treatment-Resistant Depression
- ClinicalTrials.gov ID
- NCT06732089
- Acronym / sponsor ID
- 21-274
- Conditions
- Major Depressive Disorder (MDD), Major Depressive Episode, Treatment-Resistant Major Depressive Disorder
- Keywords
- pilot study, digital health monitoring, wearable device, remote measurement-based care, treatment-resistant depression, observational study, feasibility study, electronic data capture
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 200 participants (estimated)
- Lead sponsor
- Unity Health TorontoUniversity, hospital or other
- Collaborators
- University of Toronto, Toronto Metropolitan University
- Study start
- 16 Dec 2024 (estimated)
- Primary completion
- Oct 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 13 Dec 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this observational study is to learn about remote mental health monitoring technology for adults with treatment-resistant depression. The main question it aims to answer is: are digital mental health monitoring tools (an electronic data capture platform and wearable device (e.g., smartwatch or smart-ring)) feasible to implement alongside clinical treatment for depression? The secondary aim of this study is to inform preliminary clinical parameters for larger, definitive studies.
Participants receiving neuropsychiatric treatment (repetitive transcranial magnetic stimulation, intravenous ketamine, or electroconvulsive therapy) as part of their regular medical care for treatment-resistant depression in the Interventional Psychiatry Program will have their clinical assessment data entered into a digital platform and will wear an accessory-based wearable device for the duration of treatment.
Detailed description
This observational study with retrospective data analysis is conducted in patients with treatment-resistant depression (TRD) undergoing neuropsychiatric clinical treatment (rTMS, IVK, or ECT) in the Interventional Psychiatry Program (IPP) at St. Michael's Hospital. Participants will have scores from a self-report assessment of anxiety (GAD-7) and a self-report (PHQ-9) or clinician-administered (MADRS) assessment of depression completed as part of clinical care entered into the Research Electronic Database Capture (REDCap) web-based platform after each treatment session. This will facilitate retrospective analysis of mental health symptom change and treatment response over the course of treatment. Participants will also have the opportunity to wear an accessory-based wearable device (e.g., smartwatch or ring) throughout the course of treatment to passively capture physiological biometrics of physical and mental health (e.g., heart rate, temperature, sleep, activity). This two-year pilot study aims to recruit a total of 200 participants with TRD to retrospectively assess the feasibility and efficacy of integrating remote health sensing and monitoring platforms in psychiatric clinical care.
Study design
- Observational model
- Case only
- Time perspective
- Retrospective
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| rTMS | – | –Participants in this group are enrolled to recieve rTMS treatment as part of their clinical care in the Interventional Psychiatry Program. |
| IVK | – | –Participants in this group are enrolled to receive intravenous ketamine (IVK) treatment as part of their clinical care in the Interventional Psychiatry Program. |
| ECT | – | –Participants in this group are enrolled to receive electroconvulsive therapy (ECT) as part of their clinical care in the Interventional Psychiatry Program. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Adults suffering from treatment-resistant depression (TRD) who are being treated in the Interventional Psychiatry Program at St. Michael's Hospital, Unity Health Toronto. Patients have a confirmed diagnosis of Major Depressive Disorder (MDD) and are experiencing a Major Depressive Episode (MDE) at the time of enrollment.
Key inclusion criteria (7 listed)
- Adults (aged 18+) who are capable of giving informed consent
- Patients meeting diagnostic criteria for major depressive disorder (MDD) without psychotic symptoms according to the DSM-5
- Currently experiencing a major depressive episode (MDE)
- Montgomery-Asperg Depression Rating Scale (MADRS) score greater than 20 at screening
- Patients meeting criteria for treatment-resistant depression (TRD): failure of 2 or more adequate trials of antidepressant therapy of adequate dose and duration during the current episode
Key exclusion criteria (3 listed)
- Individuals without Internet access (required to access study platforms)
- Medication changes, aside from the treatment received through the IPP, one month (28 days) before screening, or during the entire duration of treatment (variable based on treatment arm)
- Participants who do not speak English fluently enough to successfully communicate study information, answer questions accurately, and/or obtain informed consent
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Feasibility
Time frame: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
To determine the feasibility of using a web-based digital platform and wearable devices to collect active and passive data, respectively, among adults receiving clinical treatment for treatment-resistant depression. This will be measured by: number of recruitments (minimum threshold of 6-7 participants/month), recruitment rates (relative to invited patient-participants; minimum threshold of 80%), dropout rates (maximum threshold of 30%), reasons for dropout (qualitative), and data completion/adherence rates (minimum threshold of 70%).
3 secondary outcomes
Longitudinal Changes in Symptom Presentation
Time frame: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Predicting Treatment Response, Remission, and Relapse
Time frame: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Personalized Digital Phenotype Profiling (pDPP)
Time frame: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Dec 2024.
- Derived from this study: PubMed 41134764Parkington K, Aguilar RJ, Lee GH, Rueda A, Adamsahib F, Al-Hassan M, Famuditimi S, Menzies P, Lin Q, Lou W, Krishnan S, Bhat V. Digital health monitoring for adults with treatment-resistant depression: Observational feasibility study protocol. PLoS One. 2025 Oct 24;20(10):e0333484. doi: 10.1371/journal.pone.0333484. eCollection 2025.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Dr. Srihar Krishnan, Ph.D., Peng., F.C.A.E. study chair
Toronto Metropolitan University
Dr. Wendy Lou, Ph.D. study chair
Dalla Lana School of Public Health, University of Toronto
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Major Depressive Disorder (MDD) and Major Depressive Episode, run by Unity Health Toronto 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 7 inclusion and 3 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 13 Dec 2024. 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 Dr. Venkat Bhat, M.D., F.R.C.P.C. (416-360-4000 ext. 76404, venkat.bhat@unityhealth.to), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Feasibility (time frame: From Screening and Baseline Visit (Day 0) to last treatment day (approximately 2-8 weeks depending on treatment group)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06732089, which also lists 1 linked publication.
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 13 Dec 2024.