drugset / Trial / NCT03207438

Melancholic Depression and Insomnia as Predictors of Response to Quetiapine in Patients With Major Depression

NCT03207438 ↗

Phase 4 Completed 1790 enrolled University of Saskatchewan AstraZeneca · collab
RandomizedParallel-groupDouble-blindTreatment

Summary

In essence the researchers are hoping to test two separate hypotheses (described below in the form of research questions). Therefore, the proposed analysis has been outlined according to each hypothesis. Hypothesis 1: Is low-dose quetiapine (50 mg/day) more effective for patients with depression who have insomnia at treatment baseline? (Stated differently: is low-dose quetiapine 50 mg/day effective as monotherapy for patients with depression regardless of whether or not they have insomnia at baseline?). Hypothesis 2: Is high-dose quetiapine (150 - 300 mg/day) more effective for patients presenting with melancholic depression at treatment baseline?

Timeline

Start
2006-04
Primary completion
2007-07
Completion
2019-10

Outcome

Mixed primary results

registry analysis (superiority test); Quetiapine XR 150-300mg - Melancholic Depression vs Placebo 2 - Melancholic Depression vs Quetiapine XR 150-300mg - Nonmelancholic Depression vs Placebo 2 - Nonmelancholic Depression; p <.001; Hazard Ratio (HR) 1.39; Regression, Cox NCT03207438 ↗

registry analysis (superiority test); Quetiapine XR 50mg - Insomnia vs Quetiapine XR 50mg - No Insomnia; p = .33; Fisher's exact test NCT03207438 ↗

Publications

Drugs

EvaluationDrugModalityDoseRoute
Subject Quetiapine Small molecule 50 mg Oral
Subject Quetiapine Small molecule 150 mg Oral
Subject Quetiapine Small molecule 300 mg Oral