Neurocognitive Enhancement in Major Depressive Disorder (MDDNET)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00998569
Recruitment Status : Completed
First Posted : October 20, 2009
Last Update Posted : August 31, 2015
Information provided by (Responsible Party):
Christopher Bowie, Queen's University

Brief Summary:
The purpose of this study is to examine the effects of neurocognitive enhancement on cognitive abilities and related social and adaptive behaviours in individuals diagnosed with major depressive disorder. Subjects in this study will be randomized to receive Neurocognitive Enhancement Therapy (NET) or to a wait list and then NET . Secondary aims include examining whether the cognitive benefits are potentiated by repeated exposure during in-home practice with complementary exercises. Additionally, the investigators will examine the durability of the effects and their generalization to functional capacity and everyday functional performance after completion of the groups.

Condition or disease Intervention/treatment Phase
Major Depressive Disorder Behavioral: Neurocognitive Enhancement Behavioral: Wait List Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 33 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double (Participant, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Neurocognitive Enhancement in Major Depressive Disorder
Study Start Date : October 2009
Actual Primary Completion Date : March 2012
Actual Study Completion Date : March 2012

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Neurocognitive Enhancement
neurocongnitive enhancement
Behavioral: Neurocognitive Enhancement
Neurocognitive Enhancement Therapy (NET) uses behavioural treatment strategies that are designed to improve a range of cognitive skills. NET uses strategies such as coaching, repetition, practice, teaching, group discussion, and compensation for deficits by using cognitive strengths.

Wait List
no intervention
Behavioral: Wait List
Participants will be wait listed for 10 weeks, following which time they will receive the intervention previously described.

Primary Outcome Measures :
  1. Performance on paper and pencil assessments of neurocognition after treatment, compared to baseline assessment performance [ Time Frame: 20 weeks ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Male or Female.
  2. Subjects will be between the ages of 18 and 65, which is the age range with available normative comparison data.

Exclusion Criteria:

  1. Presence of a medical diagnosis that is associated with known cognitive impairments, such as multiple sclerosis, cerebrovascular accident, dementia, or history of traumatic brain injury.
  2. Subjects with a reading level below grade 6, as assessed with the Wide Range Achievement Test - Reading Recognition Subtest, will be excluded because of the likelihood of not understanding task instructions.
  3. Subjects with uncorrectable vision or hearing impairment that would preclude valid assessments or intervention procedures.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00998569

Canada, Ontario
Queen's University
Kingston, Ontario, Canada, K7L 3N6
Sponsors and Collaborators
Queen's University
Principal Investigator: Christopher Bowie, PhD Queen's University

Responsible Party: Christopher Bowie, Ph.D., Queen's University Identifier: NCT00998569     History of Changes
Other Study ID Numbers: PSYC-092-09
First Posted: October 20, 2009    Key Record Dates
Last Update Posted: August 31, 2015
Last Verified: August 2015

Additional relevant MeSH terms:
Depressive Disorder
Depressive Disorder, Major
Pathologic Processes
Mood Disorders
Mental Disorders
Behavioral Symptoms