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The Effects of Quetiapine XR on Cognition, Mood and Anxiety Symptoms in SSRI-Resistant Unipolar Depression

NCT00517387 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2010-11-16

No results posted yet for this study

Summary

Recently published work has examined the effects of "atypical antipsychotics" in SSRI-treatment resistant patients. In these studies, patients with unipolar depression who were treated with SSRI's, but not responsive to treatment after 4 or more weeks, were supplemented with an atypical. The atypical antipsychotics were found to diminish depression symptoms, as well as benefit sleep quality.

We propose a similar study with Quetiapine XR, focusing on thinking processes, mood and anxiety. Patients with depression who are SSRI treatment resistant will be treated with Quetiapine. Cognition will be evaluated in the UBC Mood Disorders Clinic two times: first before Quetiapine addition, then after 8 weeks. Depression symptoms and other measurements will be done at the 9 time points: before Quetiapine, and each week after treatment has begun.

The primary purpose of this study is to evaluate the superiority of Quetiapine XR compared to placebo as augmentation therapy in treatment of anxiety and depressive symptoms in SSRI-nonresponsive unipolar patients. Secondarily, we would like to evaluate the safety and tolerability of quetiapine as augmentation therapy in SSRI-nonresponsive unipolar patients.

Conditions

  • Unipolar Depression

Interventions

DRUG

Quetiapine XR

All patients will receive Quetiapine XR at an initial dose of 50mg/day to be increased incrementally (dose of 50mg/day 2 and 150mg/day 3) to achieve a target dose of 300 mg/day by day 4. Tablets will be self-administered early each night.

Sponsors & Collaborators

  • AstraZeneca

    collaborator INDUSTRY

  • University of British Columbia

    lead OTHER

Principal Investigators

  • Allan Young, MD · University of British Columbia

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
19 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-09-30
Primary Completion
2010-09-30
Completion
2010-09-30

Countries

  • Canada

Study Locations

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Entities

Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00517387 on ClinicalTrials.gov