MedPath

Efficacy and safety of S 47445 versus placebo as adjunctive treatment in depressed patients not fully recovered from depressive symptoms with a current antidepressant treatment.

Phase 1
Conditions
Major depressive disorder
MedDRA version: 18.1Level: PTClassification code 10057840Term: Major depressionSystem Organ Class: 10037175 - Psychiatric disorders
Therapeutic area: Psychiatry and Psychology [F] - Mental Disorders [F03]
Registration Number
EUCTR2015-003867-13-SK
Lead Sponsor
Institut de Recherches internationales Servier
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
ot Recruiting
Sex
All
Target Recruitment
400
Inclusion Criteria

- Outpatients
- Male or female aged between 18 (or legal age of majority in the country) and 65 years (inclusive),
- Fulfilling DSM-5 criteria for Major Depressive Disorder confirmed by the brief structured interview M.I.N.I. (single or recurrent episode, current episode = 12 months, current depressive episode of moderate or severe intensity, with or without anxious distress, with or without melancholic features, without mixed features or atypical features, without seasonal pattern, without psychotic features, without catatonic features, without peripartum onset for the current episode)
- Patients treated for the current depressive episode with an antidepressant treatment with SSRI (fluoxetine, citalopram, paroxetine, escitalopram or sertraline) given in monotherapy at recommended dose for at least 6 weeks and no more than 4 months and with a stable dosage for at least 3 weeks
- HAM-D total score = 20
- Clinical Global Impression Severity of illness (item 1): 6 = CGI-S = 4
- Antidepressant Treatment Response Questionnaire (ATQR) < 50% for the current SSRI
- Absence of any abnormalities likely to interfere with the conduct of the study (ECG, vital signs, laboratory tests, medical history)
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 394
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 6

Exclusion Criteria

- Depressive episode of mild intensity according to DSM-5 criteria
- All types of depressive episodes other than those occurring in a Major Depressive Disorder (Persistent Depressive Disorder (Dysthymia) according to DSM-5 criteria, including persistent depressive disorder with intermittent or persistent major depressive episode according to DSM-5, Premenstrual Dysphoric Disorder, Substance Induced Depressive Disorder, Depressive Disorder due to another Medical Condition, Other Specified or Unspecified Depressive Disorder, Bipolar Disorder I or II, depressed episode, Schizoaffective Disorder (Depressive or Bipolar type))
- Depression onset within 12 months after a stroke
- Suicidal risk defined as a score > 3 on the item 3 of the HAM-D scale or in the investigator’s opinion
- Lactose intolerance
- Patients with hereditary problems of galactose intolerance, Lapp lactase deficiency or glucose-galactose malabsorption
- Resistant depression for the current episode (patients who have not responded to 1 previous antidepressant treatment before the SSRI taken at an appropriate dose)
- Current panic disorder
- Obsessive compulsive disorder
- Current post traumatic stress disorder, current acute stress disorder
- Current or past psychotic disorder
- Any severe personality features

Study & Design

Study Type
Interventional clinical trial of medicinal product
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Main Objective: Assessment of the efficacy of the two doses of S 47445 (15mg/day and 50mg/day) of S 47445 compared to placebo after a 8-week treatment period using the Hamilton Depression Rating Scale 17 items (HAM-D);Secondary Objective: - Assessment of the response defined by the HAM-D total score decrease from baseline = 50%<br>- Assessment of the efficacy of the two doses of S 47445 as compared to placebo on Global improvement and social functioning using Clinical Global Impression (CGI), Hospital Anxiety and Depression scale (HAD) and Sheehan Disability Scale (SDS)<br>- Assessment of the safety and the tolerance of the two doses of S 47445 compared to placebo<br>- Evaluation of the pharmacokinetics of S 47445 after repeated oral administration;Primary end point(s): HAM-D total score expressed as change from baseline value<br>;Timepoint(s) of evaluation of this end point: At W0, W2, W4, W6 and W8
Secondary Outcome Measures
NameTimeMethod
© Copyright 2025. All Rights Reserved by MedPath