A Clinical Trial to Evaluate the Efficacy and Safety of Generic Escitalopram in Depression

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

260 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-03-31

Study Completion Date

2010-03-31

Brief Summary

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The primary objective of this study is to evaluate the efficacy and safety of Generic Escitalopram in the treatment of Chinese patients with depression compared with Innovator Escitalopram(Lexapro®) by evaluating the change of HAMD-17 total score from the baseline to week 8.

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Detailed Description

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This is a double-blind, parallel assignment, randomized and innovator controlled study. The subjects investigated are outpatients with major depressive disorder(MDD)according to DSM-IV from the Chinese population. The screening phase lasts for 1 week. The eligible patients enter the next randomized treatment phase. The fixed dose(generic escitalopram 10mg/d or Innovator Escitalopram(Lexapro®) 10mg/d) duration is 2 week. After the first 2 weeks, according to CGI and investigator's assessment the patients are administrated 2 different dose, one is previous dose 10mg/d, the other is high dose 20mg/d. In this study, total duration lasts for 8 weeks.

The efficacy and safety of Innovator Escitalopram(Lexapro®) in the treatment of patients with MDD have been confirmed by multiple double blind studies. This study is designed to evaluate the efficacy and safety of genetic escitalopram in the treatment of Chinese patients with MDD. Therefore, the double blind and innovator control(Lexapro®) design should be selected for this study. The drug titration method and dose are within the range specified in the instruction and patients with MDD are tolerant to the drug in practical clinical treatment.

The purpose of MDD patient treatment is to improve the core symptoms, prevent suicide, alleviate the side reactions caused by the antidepressant, and recover the life functions of patients. Generally, the treatment in the acute phase lasts for 6 to 8 weeks. In this study, the treatment in the acute phase lasts for 8 weeks.

The rating scales used in this study are standard psychiatric rating scales with good validity and are widely used in the study of antidepressants and in the treatment of patients with MDD. The high inter-investigator reliability and repeated measurement reliability of these scales(HAMD,MADRS,HAMA) have been proved by multiple studies. The clinical global impression (CGI) is a simple but convenient global impression scale. It is applicable to any patients treated and studied by the psychiatric department. The VAS-PI(Visual Analog Scale-Pain Intensity) is used to evaluate the reduction in pain intensity,a common symptom of patients with MDD. It has good reliability and validity. The Sheehan Disability Scale (SDS) was developed to assess functional impairment in three inter-related domains; work/school, social and family life.

Conditions

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Depression

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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1

Generic Escitalopram Oxalate Tablets

Group Type EXPERIMENTAL

Generic Escitalopram

Intervention Type DRUG

10mg/d or 20mg/d

2

Innovator Escitalopram(Lexapro®)

Group Type ACTIVE_COMPARATOR

Innovator Escitalopram

Intervention Type DRUG

10mg/d or 20mg/d

Interventions

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Generic Escitalopram

10mg/d or 20mg/d

Intervention Type DRUG

Innovator Escitalopram

10mg/d or 20mg/d

Intervention Type DRUG

Other Intervention Names

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Generic Escitalopram Oxalate Tablet Lexapro®

Eligibility Criteria

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Inclusion Criteria

* Outpatients
* Patients who met DSM-IV criteria for major depressive disorder(MDD):a single major depressive episode or recurrent major depressive episode, without psychotic features, MDD is primary mental disorder
* Age from 18-65 years old, male or female
* HAMD-17 total score at least 20 at screening and baseline, and first item's score at least 2
* CGI-S at least 4 at screening and baseline
* Written informed consent provided by patient himself/herself

Exclusion Criteria

* Severe suicide attempt
* Any unstable medical illness would affect study or increase patients' risk to participate this study, including disease of heart, lung, liver, kidney,cardiovascular system, eyes, nervous system, endocrine system, hematological system etc.
* History of epilepsy(except children febrile seizure/convulsion)
* Known history of high intraocular pressure or angle closure glaucoma
* Psychoactive substance abuse or dependence within 1 year prior enrollment
* Depressive episode due to other mental disorders or physical diseases
* Bipolar disorder, rapid cycling/circulation
* Female patients during their pregnant and lactation period or childbearing potential during study
* History of severe drug hypersensitivity
* A significantly clinical abnormal value in ECG or lab results which would affect assessment for efficacy or safety decided by the investigator
* ALT and AST values in the liver function test exceeding two times of the upper limits of normal values
* Participation in another drug trial within 28 days prior enrollment into this study
* Use of MAOI within 4 weeks prior to randomization
* Duration of discontinuing other psychotropics is shorter than its 7 half life periods
* Patients can not administrate drug according to medical order
* HAMD total score decreased more than 25% from screening to baseline
* Use of Electroconvulsive therapy within half year prior enrollment
* Known lack of efficacy to escitalpram by formal treatment before
* Other situation unsuitable to enroll in this study as judged by the investigator

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No