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Quetiapine XR as Add-on to Antidepressants in Treatment-resistant Late-life Major Depression

Published online by Cambridge University Press:  23 March 2020

O. Vasiliu
Affiliation:
“Dr. Carol Davila” Central Military Hospital, Psychiatry, Bucharest, Romania
D. Vasile
Affiliation:
“Dr. Carol Davila” Central Military Hospital, Psychiatry, Bucharest, Romania
D.G. Vasiliu
Affiliation:
Coltea Clinical Hospital, Internal Medicine, Bucharest, Romania
A. Andreea Filareta
Affiliation:
“Dr. Carol Davila” Central Military Hospital, Psychiatry, Bucharest, Romania
F. Vasile
Affiliation:
University of Medicine and Pharmacy Titu Maiorescu, General Medicine, Bucharest, Romania

Abstract

Objective

To assess the efficacy and tolerability of quetiapine as add-on to antidepressant agents in treatment-resistant late-life major depression.

Methods

A group of 15 patients, 8 male and 7 female, mean age 68.2, evaluated in our department for clinical symptoms that made possible a DSM 5 diagnosis of major depressive disorder, were initiated on quetiapine XR, flexible daily dose 50–300 mg QD. All patients were on treatment with an antidepressant–either a selective serotonin reuptake inhibitor (SSRI) (n = 10), or venlafaxine (n = 5)–for at least 6 weeks and presented no improvement during current treatment administered at therapeutic doses. Patients were assessed using Montgomery Asberg Depression Rating Scale (MADRS), Clinical Global Impression–Severity (CGI-S), Global Assessment of Functioning (GAF), and Columbia Suicide Severity Rating Scale (C-SSRS) every 4 weeks for 3 months.

Results

After 12 weeks, patients had a mean improvement in MADRS score of 45.7 ± 2.3%, with a final mean MADRS score of 13.5 (P < 0.01). No variations were registered depending on the specific SSRI or venlafaxine concomitant treatment. Quetiapine XR mean daily dose administered during the study was 125 mg. C-SSRS didn’t registered significant variations in suicidal ideation or behavior throughout the trial. Overall GAF score increased with 22.1 points, and CGI-S decreased with a mean of 1.5 points at week 12 (P < 0.01). Tolerability of add-on quetiapine was very good, no serious adverse event being reported.

Conclusions

Quetiapine was efficient and well tolerated in late-life resistant major depression, as add-on to SSRIs or venlafaxine, during the 12 weeks of the trial.

Type
e-Poster walk: Depression–part 1
Copyright
Copyright © European Psychiatric Association 2017

Disclosure of interest

The presenting author was speaker for Bristol Myers Squibb and Servier, and participated in clinical research funded by Janssen Cilag, Astra Zeneca, Eli Lilly, Sanofi Aventis, Schering Plough, Organon, Bioline Rx, Forenap, Wyeth, Otsuka Pharmaceuticals, Dainippon Sumitomo.

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