Efficacy and tolerability of extended release quetiapine fumarate monotherapy as maintenance treatment of major depressive disorder: a randomized, placebo-controlled trial
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
PRIMARY OBJECTIVE: evaluate the efficacy (time to recurrence of depressive symptoms) of once daily extended release quetiapine fumarate (quetiapine XR) as maintenance monotherapy treatment to prevent relapse for major depressive disorder (MDD). METHODS: Time-to-event (maximum 52 weeks), double-blind, multicenter, randomized withdrawal, placebo-controlled study of quetiapine XR (50-300 mg/day) comprising four treatment phases: enrollment (up to 28 days), open-label run-in (4-8 weeks), open-label stabilization (12-18 weeks), and randomization (up to 52 weeks). Seven hundred and seventy-six patients stabilized on quetiapine XR were eligible for randomization (Montgomery-Åsberg Depression Rating Scale [MADRS] score ≤12 and Clinical Global Impression-Severity of Illness [CGI-S] score ≤3); 391 received quetiapine XR and 385 received placebo (same dose as last open-label visit). Primary endpoint: time to recurrence of depressive event from randomization. Secondary outcomes included changes from randomization in MADRS total, CGI-S, Pittsburgh Sleep Quality Index (PSQI) global, and Hamilton Anxiety Rating Scale (HAM-A) total scores. Adverse events were recorded throughout. RESULTS: Risk of recurrence of depressive event was significantly (P<.001) reduced by 66% (HR=.34; 95% CI: .25, .46) in patients randomized to continue with quetiapine XR versus patients randomized to switch to placebo. During the randomized phase, quetiapine XR maintained improvements in secondary outcomes (P<.001 for all): MADRS (0.15 versus 2.03), CGI-S (-0.03 versus 0.23); PSQI global (0.06 versus 1.35), and HAM-A total score (0.20 versus 1.58), respectively. The most common AEs (>10% any group) during the randomized period were headache and insomnia. CONCLUSIONS: Quetiapine XR maintenance therapy significantly reduced the risk of a depressive event in patients with MDD stabilized on quetiapine XR, with a safety and tolerability profile consistent with the known profile of quetiapine.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it