Skip to main content
OpenTrials
Completed

NCT Number: NCT00933439

Assessment of Cognitive Functioning Before and After Treatment With Duloxetine

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.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Major Depressive Disorder Behavior Behavioral Symptoms Depression Depressive Disorder Depressive Disorder, Major Mental Disorders Mood Disorders

Age range

18 year–45 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Mood Disorders Research Program and Clinic - UT Southwestern Medical Center

Dallas, Texas, 75390, United States

About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Duloxetine

Drug

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.

Primary outcomes

  1. Cognitive function

    Time frame: 8 weeks

Secondary outcomes

  1. Psychosocial function

    Time frame: 8 weeks

Sponsors and collaborators

Lead sponsor

University of Texas Southwestern Medical Center

Other

Collaborators

  • Eli Lilly and Company

Registry information

Acronym: DULOX

Important dates

Study start
2005
Primary completion
2007
Study completion
2007
First posted
Jul 7, 2009
Registry last updated
Aug 13, 2013

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.