Personalized Pharmacotherapy Using Pharmacogenetics in Veterans (PGx)

September 18, 2026 updated by: Don Richardson, London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's

Personalized Pharmacotherapy Using Pharmacogenetics in Veterans Seeking Treatment for Mental Health

This study is an observational clinical trial aimed at to evaluate the use of pharmacogenetic testing (PGx) for mental health treatment in members and Veterans of the CAF and RCMP patient population as well as the attitudes of both St. Joseph's OSI Clinic Psychiatrists and patients towards PGx. Both OSI Clinic Psychiatrists participants and patient participants will be administered a brief demographic survey in addition to a survey examining their views on, and current knowledge of PGx. Patient participants will have an opportunity to opt-in to or opt-out of receiving PGx. For patient participants who opt-in to PGx (PGx-guided treatment group), a report summarizing the PGx results will be sent to each patient participants' respective OSI Clinic Psychiatrist, alongside a questionnaire that captures the OSI Clinic Psychiatrist participant's treatment planning and changes to treatment planning. Where applicable, past treatment data from patient participants acquired at the St. Joseph's OSI Clinic will be used to identify the number of prior medication changes. Patient participants who opt-out of PGx but continue to receive pharmacologic care at the St. Joseph's OSI Clinic will act as a standard care comparator treatment group. Patient participant's outcomes including PTSD, depression and anxiety severity, and medication-related side effects, will be assessed until the patient participant is discharged from the OSI Clinic or after 24 weeks, whichever comes first. All patient participants, regardless of their study treatment group, will have their symptomatology collected via standard care data collection protocol (Client Reported Outcomes Monitoring Information System (CROMIS) and electronic medical records (EMR)); a self-report assessing the presence of side effects will be completed via Lawson REDCap. OSI Clinic Psychiatrist participants and patient participants will be asked to complete a virtual exit interview at the end of their participation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
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.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

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.
Interventional

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.
155

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • Canada
    • Ontario
      • London, Ontario, Canada, N6C 0A7
        • Recruiting
        • MacDonald Franklin OSI Research and Innovation Centre
        • Contact:

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Provider participant:

    • Are at least 18 years of age;

    • Speak and write English;

    • Currently working as an OSI Clinic Psychiatrist at the London St. Joseph's OSI Clinic.

      • Psychiatrist with an active caseload of patients being treated for OSIs.

  • Patient participant:

    • Veteran (patient) CAF or RCMP member;
    • Are at least 18 years of age;
    • Are a current patient at the London St. Joseph's OSI Clinic;
    • Current diagnosis of an OSI;
    • Speak and write English;
    • Consents to the use of CROMIS data for the purpose of this study; and
    • Consents to the use of prior OSI Clinic data for research purposes (if you have been a patient at the OSI Clinic prior to this study, the research team will use past OSI Clinic data to observe changes over time).

Exclusion Criteria:

  • Participants (provider or patients) who are unable to, or do not, provide informed consent for participation.

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

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
No Intervention: Mental Health Provider

Mental health provider's thoughts on pharmacogenetic testing for treatment planning and changes to treatment planning.
Experimental: Patient with Pharmacogenetic Testing

For patient participants who opt-in to pharmacogenetic testing, a report summarizing the pharmacogenetic testing results will be sent to each patient participants' respective mental health provider.
Genetic: Pharmacogenetics Testing

Genetic test to determine individual genetic compatibility with multiple pharmaceutical drug classes to determine best outcomes for prescription drug treatment.
No Intervention: Patient without Pharmacogenetic Testing

For patient participants who opt-out to pharmacogenetic testing will be followed to see if treatment course is maintained.

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
PHQ-9 - Patient Health Questionnaire 9
Time Frame: 5 minutes

Objectifies degree of depression severity
5 minutes
GAD-7 - General Anxiety Disorder-7
Time Frame: 5 minutes

Measures severity of anxiety
5 minutes
PCL-5 - Posttraumatic Stress Disorder Checklist - 5
Time Frame: 5 minutes

A 20-item self-report tool that corresponds to the 20 symptoms listed in the DSM-V
5 minutes
OQ-45 - Outcome Questionnaire 45
Time Frame: 10 minutes

A 45-item multiple-choice self-report inventory used to measure psychotherapy progress in adult patients
10 minutes
Pharmacological Side Effect Measure
Time Frame: 10 minutes

To determine if the participant is experiencing any new or worsening or continuing side effects related to prescription medications
10 minutes
Electronic Medical Record Extraction Measure
Time Frame: 10 minutes

To determine trial and error attempts with pharmacological prescriptions in an attempt to minimize and/or control symptoms
10 minutes

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.
London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's

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 (Actual)

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.
April 25, 2024

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.
April 25, 2027

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.
April 25, 2027

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).
March 13, 2024

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.
March 21, 2024

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.
March 28, 2024

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 23, 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 18, 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

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.
  • 119245

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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