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Pharmacogenetic-Directed Treatment for Major Depression

The Evaluation of the Clinical Impact of the Antidepressant Pharmacogenomic Algorithm in an Outpatient Clinical Setting:A Randomized Double Blind Pilot Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01261364
Enrollment
50
Registered
2010-12-16
Start date
2009-09-30
Completion date
2011-09-30
Last updated
2015-12-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Depression

Keywords

GeneSight, Assurex, AssureRx

Brief summary

Determine if antidepressant treatment guided by pharmacogenetic algorithm and interpretive report improves outcomes when compared with standard treatment without the availability of genetic information.

Detailed description

This study is designed to evaluate the clinical impact of pharmacogenetic (PGx)-directed treatment, as guided by interpretive, algorithmic report in the Pine Rest outpatient behavioral health clinics. The PGx algorithm utilized in this study is the foundation of a novel method of interpreting genetic testing results and reports them in a rapidly delivered format that provides enhanced guidance to psychiatrists in their selection of antidepressant medications

Interventions

BEHAVIORALGeneSightRx

Multi-genetic pharmacogenomic panel

BEHAVIORALTreatment as usual

Treatment as usual

Sponsors

Pine Rest Christian Mental Health Services
CollaboratorOTHER
Assurex Health Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
DOUBLE (Subject, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Major Depressive Disorder (296.2, 296.3) or Depressive Disorder NOS (311.0) by a board certified psychiatrist. * The patient is referred to the study by their treating psychiatrist or nurse practitioner who is approved by the study investigators to make subject referrals to the study. * The patient is an outpatient and not in imminent need of inpatient hospitalization for medical or psychiatric reasons. * Patient's baseline 17-Item Hamilton Depression (HAMD17) Rating score is \>14. * Provide a copy of a physical exam report performed within 6 months prior to study enrollment or undergo a physical exam by either their personal physician, a physician who is a subinvestigator on the study, or a study-contracted physician assistant in internal medicine. * Undergo a medical history that includes a review of major organ systems by either their treating clinician, a subinvestigator physician, or a study-contracted physician assistant in internal medicine. * The patient has signed the study informed consent form.

Exclusion criteria

* Serious medical illness (as ascertained via inclusion criteria 6 and 7, above). * Diagnosis of a Bipolar Disorder. * Diagnosis of Schizophrenia or Schizoaffective disorder. * Evidence from history, baseline urine drug screen, and/or psychiatric interview of active abuse of alcohol and/or other drugs of abuse within 6 months prior to study enrollment. Patients who occasionally use marijuana may still be eligible if it is determined through psychiatric interview that the level of use does not qualify as abuse, dependence, or addiction. Patients testing positive for opioids or benzodiazepines are eligible if there is no evidence of abuse and it is determined that they are taking opioid analgesics or a benzodiazepine that is prescribed by a licensed prescriber for a medical or psychiatric indication. * History of prior pharmacogenomic testing.

Design outcomes

Primary

MeasureTime frameDescription
Depression Score reduction8 weeksMean change in the 17 item Grid Hamilton Depression (HAMD17) score from baseline at each assessment.
Side effect reduction8 weeksMean change in the Frequency, Intensity, and Burden of Side Effects Rating (FIBSER) score from baseline at each assessment.

Secondary

MeasureTime frameDescription
Medication change8 weeksNumber of subjects who changed their baseline antidepressant medication regimens.
Health care clinical cost8 weeksHealth care clinical cost (defined by mental health resource utilization).
Report availability8 weeksPercent of time that the PGx interpretive report is completed and available to the psychiatrist/nurse practitioner prior to seeing the patient.
Depression response or remission8 weeksPercentage of subjects who respond (≥50% decrease in HAMD17 and QIDS-CR\* rating) or remit (HAMD17\< 7 and QIDS-CR rating \< 5) with PGx-guided treatment.
Physician satisfaction8 weeksPhysician satisfaction with delivery of clinical care (defined by a researcher-developed Likert-based satisfaction survey).
Patient Satisfaction8 weeksPatient satisfaction with delivery of clinical care (defined by a researcher-developed Likert-based satisfaction survey).
Medication Choice8 weeksProportion of time that the psychiatrist/nurse practitioner prescribed a medication that was recommended by the algorithm.
Time to response/remission of depressive symptoms.8 weeksTime to response/remission of depressive symptoms.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026