Efficacy and Safety of SR58611A in Patients With a Generalized Anxiety Disorder (LIBRA)

Inclusion Criteria:

Main inclusion criteria:

1. Out-patients, 18 year and older.
2. Generalized Anxiety Disorder (GAD) according toDSM-IV-TR criteria / MINI.
3. Minimum total score of 20 on the 14-item HamiltonAnxiety Rating Scale (HAM-A)

Exclusion Criteria:

Main exclusion criteria:

1. Patients with a diagnosis of Major Depressive Disorder within 6 months of study entry.
2. Patients with a Montgomery-Asberg Depression Rating Scale (MADRS) total score of 18 or higher
3. Patients who are assessed to have a moderate to high current risk for suicide according to the MINI, or at imminent risk for a suicide attempt
4. Patients with other current anxiety disorder (within 6 months) assessed with the MINI:- Agoraphobia, social phobia,- Panic disorder,- Obsessive compulsive disorder,- Post-traumatic stress disorder, acute stress disorder.
5. Patients with a lifetime history according to the MINI of:- Bipolar disorders,- Psychotic disorders,- Antisocial Personality Disorder.
6. Patients with a current history according to the MINI of:- Anorexia nervosa or bulimia nervosa in the past 6 months,- Alcohol dependence or abuse or substance dependence or abuse in the past 12 months except nicotine or caffeine dependence.
7. Patients who have received non-pharmacologic, somatic treatments for psychiatric disease
8. Patients who have initiated, stopped, or changed the frequency or nature of psychotherapy within 3 months prior to screening.