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Study of Brain Response to Emotional Pictures Using a Magnetic Resonance Imaging (fMRI) While on Escitalopram

Information source: Indiana University
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Major Depression

Intervention: Escitalopram (Drug); Escitalopram (Drug)

Phase: Phase 4

Status: Completed

Sponsored by: Indiana University School of Medicine

Official(s) and/or principal investigator(s):
Amit Anand, M.D., Principal Investigator, Affiliation: Indiana University School of Medicine

Summary

The purpose of this study is to find out what parts of the brain have increased or decreased activity when people are depressed and how antidepressant medicine changes this activity in depressed patients. The genetic samples collected are to look at variation in a gene (serotonin transporter gene), which affects the functioning of the chemical serotonin in the brain

Clinical Details

Official title: fMRI and Genotype Markers of Antidepressant Side Effects and Response in Young Adults Compare to Older Adults

Study design: Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Primary outcome: Primary efficacy measure would be Hamilton Depression Rating Scale

Detailed description: This study will measure the activity in different parts of the brain, while the patients are seeing some pictures, using Magnetic Resonance Imaging (MRI) scan. For this study three MRI scans will be conducted. One before the patient begins on any medication, one during the study after 3 weeks of treatment and one after six more weeks of treatment with a standard antidepressant called Escitalopram(trade name: Lexapro).

Eligibility

Minimum age: 18 Years. Maximum age: 50 Years. Gender(s): Both.

Criteria:

Inclusion Criteria:

- Ages 18-50 years and able to give voluntary informed consent.

- Satisfy criteria for Major Depressive Disorder (MDD) and current depressed episode

using the Mini International Neuropsychiatric Interview (M. I.N. I.).

- 17-item Hamilton Depression Rating Scale (HDRS) score > 18.

- Satisfy criteria to undergo an MRI scan based on MRI screening questionnaire.

- Able to be managed as outpatients for initial assessment and during treatment as

ascertained by the following -

- Symptoms not worsening by more than 10 points on the HDRS during the course of the

study.

- No danger to self or others.

Exclusion Criteria:

- Meeting DSM-IV criteria for schizophrenia, schizophreniform disorder, schizoaffective

disorder, bipolar disorder, atypical psychosis, mental retardation, or organic mental (including organic mood) disorder.

- On monoamine oxidase inhibitors in the past 2 weeks.

- History of narrow angle glaucoma.

- Lack of response of the current episode of depression to two or more adequate courses

of antidepressant therapy at a clinically appropriate dose for a minimum of 4 weeks or, in the judgment of the investigator, the patient meets criteria for treatment-resistant depression.

- Use of neuroleptic in the past 2 weeks.

- Use of antidepressants in the past 2 weeks. If on fluoxetine in the past, then

should not have been on this medication for 4 weeks.

- Use of mood stabilizers in the past 2 weeks.

- Use of benzodiazepines in the past 2 weeks.

- Acutely suicidal or homicidal or requiring inpatient treatment.

- Meeting DSM-IV criteria for other substance dependence within the past year, except

caffeine or nicotine. The criteria will be evaluated by interview and urinary toxicology screening initially and on test days.

- Use of alcohol in the past 1 week.

- No serious medical or neurological illness as assessed by physical examination and

laboratory examination including CBC and blood chemistry.

- Current pregnancy or breast-feeding.

- Metallic implants.

- Previously known positive HIV blood test as reported by the subject.

Locations and Contacts

Indiana University Adult Psychiatric Clinic, Indianapolis, Indiana 46202, United States
Additional Information

Starting date: May 2008
Last updated: March 5, 2013

Page last updated: August 23, 2015

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