Electroencephalography (EEG) Biomarkers of Response in Depression
NCT00759122
ABOUT THIS STUDY
FOR MORE INFORMATION
Contact a representative by phone, email, or visiting the study website. Please see the references below:
Pfizer Clinical Trials Contact Center
1-800-718-1021
- All subjects will meet DSM-IV criteria for depression on the basis of a SCID-P interview, with subjects having a score on the 17-item Ham-D > 17 (with item #1 > 2).
- Subjects will meet criteria both at recruitment and after a one-week single blind placebo wash-in. Study includes outpatients only.
- All subjects will have no serious medical illness. The investigators will exclude
patients also meeting criteria for the following groups of axis I diagnoses:
- delirium or dementia
- substance-related disorders
- schizophrenia or other psychotic disorders, or eating disorders.
- In addition, patients meeting criteria for cluster A or B axis II diagnoses will be
excluded.
- Subjects with a history of current or past active suicidal ideation, or suicide
attempts will be excluded from the study.
NEED INFO?
Questions about a trial? Call or email to reach a Pfizer Clinical Trial Contact Center Representative

TRY A NEW SEARCH
Search for Clinical Trials by condition, keyword or trial number. Share your location or enter your city or zip code to find studies near you.
Based on your search, you may also be interested in
- Nashville, Tennessee
- Madison, Wisconsin
- Tokyo,
- Vancouver, British Columbia
Descriptive Information | ||||
---|---|---|---|---|
Brief Title ICMJE | Electroencephalography (EEG) Biomarkers of Response in Depression | |||
Official Title ICMJE | EEG Biomarkers of Response in Depression | |||
Brief Summary | There are two specific aims of this project:
| |||
Detailed Description | Our previous work indicates that a combination of neurophysiologic, symptom, and cognitive measures may predict response more accurately than brain functional measures alone. The purpose of this study is to replicate results from our earlier work using a similar study design (96-06-291-11), and also to prospectively gather additional information to substantiate that a more comprehensive approach to subject assessment will yield more accurate and reproducible prediction of treatment response. One of the major challenges involved in clinical trials for major depressive disorder (MDD) is that of placebo response. The placebo response rate has been estimated at 20 - 50% of those subjects who enter a standard clinical trial for MDD. This high rate of response to placebo, which may not differ substantially from the response rate to medication, can make it difficult to demonstrate the efficacy of new antidepressant compounds. Identification of MDD subjects with a placebo responder (PR) phenotype, either at the beginning or end of a clinical trial, could have two major potential benefits. First, identification of placebo responders prior to enrollment in a clinical trial might make it possible to have restrictive entry criteria, excluding such subjects from the trial. Segregation of PR phenotype subjects a priori could reduce variance in the outcome data and increase the drug-placebo difference. This exclusion could reduce the number of subjects required for clinical trials and render the trials more efficient. Second, identification of a PR phenotype during a clinical trial could make it possible to distinguish "true medication" from placebo response. This distinction could make it possible to identify subgroups in the trial, enhancing precision in the study of medication effects. Our research group has performed a series of placebo-controlled treatment trials in MDD and has used a combination of behavioral ratings, self-report, and neurophysiologic measurements with quantitative electroencephalography (QEEG) to identify predictors of both placebo response and medication response. The preliminary results from previous studies suggest that a combination of neurophysiologic, symptom, and cognitive measures may be useful for pretreatment prediction and/or early treatment detection of different types of treatment response. In this study our primary goal is to assess the neurophysiologic, behavioral, and cognitive assessments of subjects with MDD in the setting of a clinical trial to replicate prospectively these initial results and more completely identify the characteristics of different types of treatment response in a clinical trial. | |||
Study Type ICMJE | Interventional | |||
Study Phase ICMJE | Phase 4 | |||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) Primary Purpose: Treatment | |||
Condition ICMJE | Major Depressive Disorder | |||
Intervention ICMJE |
| |||
Study Arms ICMJE |
| |||
Publications * | Not Provided | |||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. | ||||
Recruitment Information | ||||
Recruitment Status ICMJE | Completed | |||
Actual Enrollment ICMJE | 44 | |||
Original Actual Enrollment ICMJE | Same as current | |||
Actual Study Completion Date ICMJE | December 2005 | |||
Actual Primary Completion Date | November 2005 (Final data collection date for primary outcome measure) | |||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
| |||
Sex/Gender ICMJE |
| |||
Ages ICMJE | 18 Years to 65 Years (Adult, Older Adult) | |||
Accepts Healthy Volunteers ICMJE | No | |||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | |||
Listed Location Countries ICMJE | United States | |||
Removed Location Countries | ||||
Administrative Information | ||||
NCT Number ICMJE | NCT00759122 | |||
Other Study ID Numbers ICMJE | Biomarkers in MDD | |||
Has Data Monitoring Committee | No | |||
U.S. FDA-regulated Product | Not Provided | |||
IPD Sharing Statement ICMJE | Not Provided | |||
Responsible Party | Ian A. Cook, MD, UCLA Semel Institute for Neuroscience and Human Behavior | |||
Study Sponsor ICMJE | University of California, Los Angeles | |||
Collaborators ICMJE |
| |||
Investigators ICMJE |
| |||
PRS Account | University of California, Los Angeles | |||
Verification Date | September 2008 | |||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |