Study to Treat Major Depressive Disorder (MDD) With a New Medication

NCT02149836 | Completed Phase 2 Results

• 1 other identifier: GCO 14-0597
• Study Type: interventional
• Target: 18
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to test the antidepressant effects of Ezogabine in major depressive disorder (MDD). The investigators also aim to determine the safety and tolerability Ezogabine in patients with MDD. The investigators hypothesize that depressive symptoms will be significantly decreased following an 8-week treatment period of the medication compared to baseline.

Conditions

Major Depressive Disorder; Depression

Keywords

major depressive disorder; depression; treatment resistent depression

Outcome Measures

Primary Outcomes (1)

• Montgomery-Asberg Depression Rating Scale Comparison to Baseline

  The Montgomery-Asberg Depression Rating Scale (29) is a 10-item instrument used for the evaluation of depressive symptoms in adults and for the assessment of any changes to those symptoms. Each of the 10 items is rated on a scale of 0 to 6, with differing descriptors for each item. These individual item scores are added together to form a total score, which can range between 0 and 60 points. The MADRS is specifically designed to detect changes in depression severity in the context of a medication treatment trial.

  baseline and after end of treatment (10 weeks)

Secondary Outcomes (3)

• Patient Rated Inventory of Side Effects (PRISE)

  8 weeks

• Columbia-Suicide Severity Rating Scale (C-SSRS)

  8 weeks

• Changes in Reward System Activation After Treatment With Ezogabine

  baseline and post treatment (8 weeks)

Study Arms (1)

ezogabine

EXPERIMENTAL

Ezogabine dosage plan to 900mg and then tapered down

Drug: ezogabine

Interventions

ezogabine DRUG

Treatment Week 1: 100mg of Ezogabine by mouth three times per day (total daily dose = 300mg) Treatment Week 2: dose will be increased to 150 mg Ezogabine by mouth three times per day (total daily dose = 450mg). Treatment Week 3: dose will be increased to 200mg of Ezogabine by mouth three times per day (total daily dose = 600mg). Treatment Week 4: dose will be increased to 250mg of Ezogabine by mouth three times per day (total daily dose = 750mg). Treatment Week 5: dose will be increased to 300mg of Ezogabine by mouth three times per (total daily dose = 900mg). Participants will continue to take 900mg of Ezogabine per day and return weekly to the clinic for the remainder of the study. Following this primary outcome visit, participants will be instructed to taper the study medication over the following 3 weeks based on FDA recommended guidelines as follows: 250 mg po TID daily x 1 week, then 200 mg po daily x 1 week, then 100 mg po daily x 1 week, then discontinue

Also known as: Potiga, Retigabine

ezogabine

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Male or female participants, 18-65 years of age;
• Current diagnosis of major depressive disorder according as determined by a psychiatrist and confirmed with The Mini-International Neuropsychiatric Interview (MINI);
• At least moderate depression severity as defined by a score of \>= 21 on the Montgomery-Asberg Depression Rating Scale (MADRS);
• At least a moderate level of anhedonia based on a Snaith-Hamilton Pleasure Scale (SHAPS) score ≥ 20;
• If female of childbearing potential, must agree to use of a medically accepted form of contraception, or else agree to abstinent;
• Participants must have a level of understanding of the English language sufficient to agree to all tests and examinations required by the study and must be able to participate fully in the informed consent process.

You may not qualify if:

• Lifetime diagnosis of schizophrenia or any psychotic disorder, bipolar disorder, obsessive compulsive disorder or pervasive developmental disorders or mental retardation;
• Diagnosis of a substance use disorder within the past 6 months (excluding substance use disorder in sustained remission)
• Female participants who are pregnant, nursing, for may become pregnant;
• Any unstable medical illnesses including hepatic, renal, gastroenterologic, respiratory, cardiovascular (including ischemic heart disease); endocrinologic, neurologic (including history of severe head injury), immunologic, or hematologic disease;
• Clinically significant abnormalities of laboratories, physical examination, or ECG;
• Prolonged QT Interval at screening, operationalized as a QTc of \> 480 ms at baseline;
• Hypokalemia (potassium value less than 3.5mEq/L) or hypomagnesemia (magnesium value less than 1.6mEq/L) at baseline;
• A history of retinal abnormalities (ie, pigment changes, retinal dystrophy) or findings of retinal pathology on ophthalmological exam at baseline
• Antidepressant medication within 2 weeks of start of treatment (4 weeks for fluoxetine)\*
• Other psychotropic medication, including antipsychotics and mood stabilizers within 2 weeks of start of treatment; subjects will be allowed to remain on a stable dose of zolpidem 10 mg nightly for sleep or a benzodiazepine as needed for sleep or anxiety (dosage equivalent to lorazepam 1 mg daily or less)
• No current or recent significantly elevated risk of self-harm or violence as determined by the PI.
• For subjects who may participate in the MRI portion of the study, claustrophobia, any trauma or surgery which may have left magnetic material in the body, magnetic implants or pacemakers, and inability to lie still for 1 hour or more.

Sponsors & Collaborators

• Icahn School of Medicine at Mount Sinai: lead

Study Sites (1)

Icahn School of Medicine at Mount Sinai

New York, New York, 10029, United States

Location

MeSH Terms

Conditions

Depressive Disorder, Major; Depression

Interventions

ezogabine

Condition Hierarchy (Ancestors)

Depressive Disorder; Mood Disorders; Mental Disorders; Behavioral Symptoms; Behavior

Results Point of Contact

• Title: Dr. James W. Murrough
• Organization: Icahn School of Medicine at Mount Sinai

james.murrough@mssm.edu

212-241-6539

Study Officials

• James Murrough, MD

  Icahn School of Medicine at Mount Sinai

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: Yes

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: May 22, 2014
• First Posted: May 29, 2014
• Study Start: August 1, 2014
• Primary Completion: December 1, 2016
• Study Completion: December 1, 2016
• Last Updated: April 16, 2019
• Results First Posted: April 16, 2019

Record last verified: 2019-03

Locations

US (1)