Quality of life, in depressed patients in Primary Health Care setting. Effectiveness and safety of venlafaxine extended release

Abstract

Introduction. The aim of this observational study was to evaluate effectiveness, tolerability and impact on quality of life of treatment with venlafaxine extended release at a dose of 75 to 150 mg/day, in depressed outpatients treated in Primary Health Care.

Methods. Observational, prospective, open-labeled study, carried out by 882 Primary Health Care physicians. Outpatients, between 18 and 70 years of age with depressive symptomatology susceptible of treatment, with a Hamilton D ep ression Scale (HAM-D1 7) score 14 we re i n cluded. Daily doses of 75 or 150 mg of venlafaxine extended release were administered orally for 24 weeks. Antidepressant effectiveness was assessed using the HAM-D17 scale and quality of life with the Quality of Life in Depression Scale (QLDS), Spanish version.

Results. 4,747 patients were recruited, of which 4,320 were included in a intention to treat effectiveness analysis and 4,557 patients in a safety analysis. HAM-D17 and QLDS mean score significantly decreased from week 4 to the end of study. 86,2% of the patients were responders and 73.8% achieved remission of the symptoms. Likewise, 95% reported absence or mild somatic and psychic anxiety on the final visit. Tolerability was considered good or excellent for 98.7 % subjects. 191 patients (4.2%) reported adverse events.

Conclusions. Venlafaxine extended release is a safe and effective drug that reduces depressive symptoms of Primary Health Care patients and improves their quality of life.