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Major Depressive Disorder | Safety and Efficacy Study Comparing ETS6103 With Amitriptyline in the Treatment of Major Depressive Disorder (MDD)

Major Depressive Disorder research study

What is the primary objective of this study?

To demonstrate that the antidepressant activity of ETS6103 is not inferior to amitriptyline in subjects who have an unsatisfactory response to / are resistant to treatment with SSRIs.

Who is eligible to participate?

Inclusion Criteria: - Signed informed consent - Male or female - Age 18-65 years inclusive - Subjects with a current episode of moderate to severe Major Depressive Disorder meeting the criteria of Diagnostic and Statistical Manual of Mental Disorders (DSM) IV -TR and documented using the brief structured interview Mini International Neuropsychiatric Interview (MINI) version 5.0 and with a minimum duration of two weeks and a maximum of twelve months - Minimum Hamilton Depression Scale (HAM-D) 17 items total score of 18 at screening and ≥12 at the end of the lead-in phase prior to randomization. - Female subjects of childbearing potential must have a negative pregnancy test at the Screening Visit and must use an acceptable method of contraception throughout the study and for 30 days after. Male subjects with female partners of child-bearing potential must use an acceptable method of contraception throughout the study and for 30 days after. - Able to understand and comply with the requirements of the study as judged by the investigator Exclusion Criteria: - Considered by the investigator to be at significant risk of suicide or scoring 5 or more on the Montgomery Asberg Depression Rating Scale (c) question 10 - Significant other psychiatric illness which would interfere with trial assessments co-morbid generalized anxiety disorder (GAD) and panic disorder will be permitted where MDD is considered the primary diagnosis - Significant physical illness which would interfere with trial assessments - Recent (within 1 week of screening) antidepressants (except for fluoxetine [within 4 weeks of screening] and St John's Wort or Monoamine oxidase inhibitors (MAOI) [within 14 days of screening]), - Benzodiazepine or any other psychotropic medication including lithium or other mood stabilizers within 1 week of screening - Oral anticoagulant therapy within one month of screening - Formal psychotherapy or alternative treatments for one week prior to screening or during the study - Reduced hepatic function defined as liver enzyme levels ≥2.5 times upper limit of normal - Renal insufficiency defined as creatinine clearance <30 mL/min - Epilepsy - Uncontrolled hypothyroidism - Uncontrolled hypertension - Acute porphyria - Urinary retention, prostatic hypertrophy, narrow angle glaucoma or increased intraocular pressure or any other clinically relevant contraindication stated in the Summary of Product Characteristics (SmPC) for citalopram, tramadol or amitriptyline - History of significant cardiac dysrhythmia or history of myocardial infarction within 1 year prior to screening - Significant history of alcohol or substance abuse - Regular alcohol intake above the recommended United Kingdom (UK) guideline of 4 units per day for males or 3 units per day for females - Pregnant or lactating women - Known hepatitis B or C or human immunodeficiency virus (HIV) or syphilis seropositivity. - A corrected QT interval of >470ms for female subjects of >450ms for male subjects, calculated using the QTcB (Bazett Correction Formula) , or second degree or higher heart block on an electrocardiography (ECG) recording, at screening. - Allergy to the study drugs or excipients - Treatment with another investigational medicinal product within the 30 days prior to screening.

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

Major Depressive Disorder

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Drug:ETS6103 (low dose)

Drug:ETS6103 (high dose)

Drug:Amitriptyline

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

ETS6103 (low dose)ETS6103 (low dose) extended release tablets (encapsulated) taken once daily orally for the duration of randomised phase of the study (8 weeks).

ETS6103 (high dose)ETS6103 (high dose) extended release tablets (encapsulated) taken once daily orally for the duration of randomised phase of the study (8 weeks).

AmitriptylineAmitriptyline tablets (encapsulated) Standard dosing regime

Lead-in phaseCitalopram tablets: Standard dosing regime

Study Status

Completed

Start Date: October 2013

Completed Date: October 2015

Phase: Phase 2

Type: Interventional

Design:

Primary Outcome: Change From Baseline in Baseline-adjusted (Montgomery-Asberg Depression Scale) MADRS Score at the End of Treatment.

Secondary Outcome:

Study sponsors, principal investigator, and references

Principal Investigator: Alan G Wade, MBChb

Lead Sponsor: e-Therapeutics PLC

Collaborator:

More information:https://clinicaltrials.gov/show/NCT02014363

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