Escitalopram (Lexapro®) In Patients With Major Depression With Atypical Features

May 30, 2013 updated by: Duke University

A Pilot Study -- An Open-Label, Rater-blinded, Flexible-dose, 8-week Trial of Escitalopram (Lexapro®) In Patients With Major Depression With Atypical Features.

Aims of Study:

The aims of this study are 1) to examine the clinical utility of escitalopram in patients with major depression with atypical features; 2) to evaluate the tolerability of escitalopram in major depression with atypical features.

Study hypothesis and objectives. This study is proposed as an open-label study to gather pilot data to examine whether escitalopram has clinical utility in the treatment of major depression with atypical features. Because of the exploratory nature of the design, no specific study hypotheses can be generated regarding efficacy of the drug. Our primary hypothesis is that the effect size of escitalopram in atypical depression will be similar to the effect size of escitalopram in major depression, its FDA approved indication.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Based on treatment outcome, longitudinal course, biologic and physiologic data, and family histories (Rabkin et al., 1996), the American Psychiatric Association's Diagnostic and Statistical Manual, Fourth Edition (DSM-IV) (American Psychiatric Association, 1994) added atypical features as a parenthetical modifier of major depression and dysthymia. Several recent reports suggest that DSM-IV criteria for depression with atypical features identify a group distinguishable by a cluster of symptoms, age of onset and course of illness. The symptom constellation consists of depressed mood, along with hyperphagia, weight gain, increased fatigue and rejection sensitivity. Some authors have distinguished two subtypes of atypical depression. One subtype has an early onset (i.e., before age 20 years) and a chronic course (i.e., no spontaneous well-being since onset greater than 2 months) (early/chronic atypical) are no more likely to benefit from tricyclic antidepressant than from placebo (Stewart et al., 2002), but do respond to a monoamine oxidase inhibitor, and do not have increased left hemisphere perceptual processing (Stewart et al., 2003). In contrast, the other subtype reports either later onset or a less chronic course of illness (late/nonchronic atypical) respond robustly to tricyclic antidepressant (Stewart et al., 2002), and show evidence of increased left hemispheric processing (Stewart et al., 2003).

The role of the newer medications in the treatment of depressed patients with atypical features remains to be elucidated. One study compared outcome between phenelzine and fluoxetine, reporting no difference, but risk of a type II error was large (Pande et al. 1996). A second study limited to depressed patients with atypical features compared fluoxetine, imipramine, and placebo, finding both drugs effective for about half the patients and both superior to placebo, but not different from each other (McGrath et al. 2000). A 12-week study comparing moclobemide and sertraline in the treatment of outpatients with atypical depression found both drugs to produce comparable improvement (Sogaard et al, 1999). Falkai (1999) asserts the efficacy of mirtazapine for depression with atypical features without any data, and Rye et al. (1998) reported on a single case of apparently late onset atypical depression responding to bupropion. A placebo controlled study failed to show any benefit for mianserin for atypical depression (McGrath et al, 1985). Finally, an unmarketed drug, gepirone, has been demonstrated to be effective for depression with atypical features but no comparison was made with other antidepressant medications (McGrath et al., 1994).

Escitalopram has been approved for the treatment of major depression and Generalized Anxiety Disorder. However whether escitalopram improved atypical depressive symptoms has not been investigated.

Aims of Study:

The aims of this study are 1) to examine the clinical utility of escitalopram in patients with major depression with atypical features; 2) to evaluate the tolerability of escitalopram in major depression with atypical features.

Study hypothesis and objectives. This study is proposed as an open-label study to gather pilot data to examine whether escitalopram has clinical utility in the treatment of major depression with atypical features. Because of the exploratory nature of the design, no specific study hypotheses can be generated regarding efficacy of the drug. Our primary hypothesis is that the effect size of escitalopram in atypical depression will be similar to the effect size of escitalopram in major depression, its FDA approved indication.

Study Type

Interventional

Enrollment (Actual)

15

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • North Carolina
      • Durham, North Carolina, United States, 27705
        • Dept Psychiatry, Duke University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. age 18 to 65 years,
  2. DSM-IV episode of Major Depression non-psychotic with atypical features.
  3. ≥19 score on the 29-item HAM-D,
  4. ability to give informed consent, if patients are of child-bearing potential
  5. A minimum 2-week washout from existing psychotropics (5 weeks for fluoxetine).

Exclusion Criteria:

  1. bipolar depression,
  2. Any Axis I psychotic disorder
  3. currently suicidal or suicide risk,
  4. history of substance abuse in the previous 12 months,
  5. history of hypersensitivity to escitalopram, or citalopram
  6. serious or unstable medical disorders,
  7. starting or terminating psychotherapy during the previous 12 weeks,
  8. ECT treatment in the previous 3 months,
  9. pregnancy or planning pregnancy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: A
Lexapro
Drug: Escitalopram
Escitalopram will be started at 10 mg per day and augmented weekly in 10 mg per day increments, the maximum dose being 20 mg per day. The dose will be titrated upward or downward based on clinical response and tolerability.
Other Names:
  • Escitalopram (Lexapro)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
changes in HAM-D-29 scores from baseline to end of treatment.
Time Frame: 8 weeks
8 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
changes in 8-atypical items on the HAM-D-29, SDS and ESQ from baseline to end of treatment. Response will be defined as 50% or greater reduction in HAM-D-29 scores from baseline to end of treatment.
Time Frame: 8 weeks
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Duke University

Collaborators

Forest Laboratories

Investigators

  • Principal Investigator: Aswin A Patkar, M.D., Duke University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2005

Primary Completion (Actual)

May 1, 2007

Study Completion (Actual)

May 1, 2007

Study Registration Dates

First Submitted

January 28, 2008

First Submitted That Met QC Criteria

February 7, 2008

First Posted (Estimate)

February 8, 2008

Study Record Updates

Last Update Posted (Estimate)

May 31, 2013

Last Update Submitted That Met QC Criteria

May 30, 2013

Last Verified

January 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 7842
  • IRB#7842

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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