Trial reportBMC psychiatry2019
Long-term mood/antidepressant effects of quetiapine extended-release formulation: an open-label, non-controlled extension study in Japanese patients with bipolar depression.
Trial report in BMC psychiatry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01725308 (Phase II/III Study of FK949E), which is not on this map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Phase II/III Study of FK949E: Placebo-controlled, Double-blind, Parallel-group Comparative Study and Open-label, Non-controlled Extension Study in Bipolar Disorder Patients With Major Depressive Episodes
Who cites it
2 citing papers in PubMed.
- Long-term safety and tolerability of lumateperone 42 mg in patients with bipolar disorder: results from a 6-month open-label extension study.International clinical psychopharmacology · 2026Trial
- Lurasidone in the long-term treatment of Japanese patients with bipolar I disorder: a 52 week open label study.International journal of bipolar disorders · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn an 8-week, randomized, placebo-controlled, double-blind study, an extended-release formulation of quetiapine, quetiapine XR, demonstrated efficacy and safety in Japanese patients with bipolar depression. Bipolar disorder is a chronic disease requiring continuous treatment.
methodsThis was a long-term (52-week), open-label, non-controlled extension study to evaluate the long-term safety and efficacy of quetiapine XR in Japanese patients with bipolar depression who had previously completed the initial 8-week double-blind study. Efficacy was determined by the Montgomery-Åsberg Depression Rating Scale (MADRS), Hamilton Depression Scale 17-item (HAM-D
resultsThe mean (SD) MADRS total score decreased from 30.9 (6.9) at baseline to 16.1 (10.6) at week 8, and eventually to 9.1 (8.7) at week 52. The sustained efficacy of quetiapine XR treatment was also shown using HAM-D
conclusionsThe efficacy of quetiapine XR was sustained long-term and no new safety concerns were identified in Japanese patients with bipolar depression.
trial registrationClinicalTrials.gov Registration: NCT01725308. Date of registration; 12th November 2012 (retrospectively registered).
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