Assessment of Cognitive Functioning Before and After Treatment With Duloxetine (DULOX)

August 9, 2013 updated by: Prabha Sunderajan, University of Texas Southwestern Medical Center
The purpose of this study is to study the effect of duloxetine treatment on (1) cognitive functions, the brain mechanisms involved with thinking, reasoning, learning, and remembering; (2) psychosocial functions, how someone interacts with his/her social environment; and (3) the relationship between these two functions, in people who have major depressive disorder, a severe form of depression.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

People who have difficulties with concentration and/or cognition as part of their depression will be treated with duloxetine for 12 weeks and their cognitive performance will be assessed before and after treatment using cognitive tests. Eligible participants will have eight clinic visits.

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

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
    • Texas
      • Dallas, Texas, United States, 75390
        • Mood Disorders Research Program and Clinic - UT Southwestern 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 45 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Ability and willingness to provide written informed consent
  • Primary diagnosis of Major Depressive Disorder (MDD)
  • Age 18-45
  • Screening and baseline Hamilton Rating Scale for Depression (HRSD) 17-item score greater than or equal to 16 or Clinical Global Impression (CGI) score of at least 4
  • Subjective report of difficulties with cognition and/or concentration and score of 2 or greater on the Inventory for Depressive Symptomatology (IDS-C(30)) item addressing this symptom (#16: Concentration and Decision Making)

Exclusion Criteria:

  • Presence of significant comorbid condition based on laboratory tests, physician information, or evidence at examination
  • Patient report or evidence (based on physical examination or laboratory tests) of existing liver disease
  • Presence of other psychological disorders, including depression due to other comorbid conditions, currently suicidal or high suicide risk, current or past psychotic disorders of any type, bipolar disorder (I, II, or NOS), schizophrenia, or schizoaffective disorder, anorexia, bulimia, obsessive compulsive disorder, alcohol or substance abuse within the last 6 months, or patients with comorbid psychiatric conditions that are relative or absolute contraindications to the use of duloxetine
  • Concomitant pharmacological or psychotherapeutic treatment including but not limited to antidepressants, anxiolytics, neuroleptics, mood stabilizers, and/or other agents without proven antidepressant efficacy, cognitive behavioral therapy; current use of other medications that would be contraindicated with duloxetine, as determined by the study doctor
  • Hospitalization for mental illness within the past year
  • Not fluent in spoken and written English
  • For women, currently pregnant, planning to become pregnant in the next year, or breastfeeding

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: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Duloxetine
Drug: Duloxetine
Approximately 30 participants with major depressive disorder and concentration and/or cognition difficulties, recruited from the community and physician referrals, will be treated with duloxetine for 12 weeks. Their cognitive performance will be assessed pre- and post-treatment with a cognitive testing battery.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Cognitive function
Time Frame: 8 weeks
8 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Psychosocial function
Time Frame: 8 weeks
8 weeks

Collaborators and Investigators

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

Sponsor

University of Texas Southwestern Medical Center

Collaborators

Eli Lilly and Company

Investigators

  • Principal Investigator: Prabha Sunderajan, MD, UT Southwestern Medical Center - Department of Psychiatry

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

February 1, 2005

Primary Completion (Actual)

September 1, 2007

Study Completion (Actual)

September 1, 2007

Study Registration Dates

First Submitted

July 2, 2009

First Submitted That Met QC Criteria

July 6, 2009

First Posted (Estimate)

July 7, 2009

Study Record Updates

Last Update Posted (Estimate)

August 13, 2013

Last Update Submitted That Met QC Criteria

August 9, 2013

Last Verified

August 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Duloxetine

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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