EEG Biomarkers for Predicting Response to Antidepressant Therapy

2014-08-27 03:46:11 | BioPortfolio


The purpose of this study is to evaluate the potential early EEG predictors of an individual's response to treatment with antidepressant medications.


- Prospectively confirm accuracy of current EEG biomarker algorithm

- Determine preferred clinical intervention for subjects with negative indicator

- Identify predictors of worsening suicide ideation


According to recent clinical studies sponsored by the NIH, fewer than half of subjects diagnosed with a major depressive episode respond to the first trial of an antidepressant medication. While the majority of subjects eventually respond to treatment with an antidepressant, failure with the first line medication puts subjects at increased risk for never receiving adequate treatment of their depression.

Several lines of reasoning support the rationale for further investigating EEG as a means of predicting response and resistance to antidepressants. Prior studies suggest that changes in neuronal activity in the anterior cingulate and prefrontal regions are related to depression and that changes in brain response to treatment may also produce alterations that can be detected by recoding frontal EEG activity.

In this protocol, we proposed to identify possible neurophysiologic indicators of treatment outcome in depression, particularly indicators of brain response that appear early (within 7 days) during treatment with antidepressants. We will test whether quantitative EEG (QEEG) biomarkers can be reliably associated with response or non-response to treatment with antidepressant medications, using both monotherapy and combination drug treatments.


Selecting the best treatment for subjects with resistance to an initial antidepressant poses a considerable challenge for clinicians. The most widely prescribed antidepressants usually require 4-6 weeks of therapeutic dosing before a marked clinical improvement in symptoms is observed. Therefore, determining the optimal regimen can take several weeks or months for subjects who are resistant to the first line antidepressant. A tool for predicting eventual clinical response to antidepressants could help inform and accelerate the process of identifying the most efficacious treatment option for a given subject.

Study Design

Observational Model: Case Control, Time Perspective: Prospective


Major Depressive Disorder


Escitalopram, Bupropion XL


University of California, Los Angeles-Westwood
Los Angeles
United States




Aspect Medical Systems

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:46:11-0400

Clinical Trials [1844 Associated Clinical Trials listed on BioPortfolio]

Combining Medications to Enhance Depression Outcomes

This study will compare whether a combination of antidepressant medications is better than one antidepressant medication alone when given as initial treatment for people with chronic or r...

Comparison of Escitalopram Combination in Adult Patients With Major Depressive Disorder

Escitalopram is the S-enantiomer of citalopram. Both escitalopram and citalopram are selective serotonin reuptake inhibitors (SSRIs) and are used to treat depression in adults. This study ...

Escitalopram Combination Comparison Study for Adult Patients With Major Depressive Disorder

The purpose of this study is to evaluate the effectiveness, safety and tolerability of an escitalopram combination treatment compared to single treatments, and to placebo in patients with ...

Escitalopram in the Treatment of Adolescents With Major Depressive Disorder or Anxiety Disorders

Escitalopram has been approved by FDA in the treatment of adolescents with major depressive disorder since March 2009. To date, there are only 3 clinical trials assessing the effect and va...

Dual Therapy in Depression

This study will utilize a randomized double-blind design to evaluate whether initial treatment with two anti-depressant medications (escitalopram and bupropion) results in more rapid remis...

PubMed Articles [9918 Associated PubMed Articles listed on BioPortfolio]

Efficacy of Tianeptine 25-50 mg in Elderly Patients With Recurrent Major Depressive Disorder: An 8-Week Placebo- and Escitalopram-Controlled Study.

The present placebo-controlled study evaluated the efficacy and safety of 8 weeks of treatment with tianeptine 25-50 mg/d in elderly patients suffering from major depressive disorder (MDD) according t...

Neurophysiological Changes Associated with Antidepressant Response to Ketamine Not Observed in a Negative Trial of Scopolamine in Major Depressive Disorder.

This randomized, placebo-controlled, crossover trial examined the antidepressant efficacy of the muscarinic antagonist scopolamine in major depressive disorder subjects with more severe and refractory...

The Effect of Home Buddhist Mindfulness Meditation on Depressive Symptom in Major Depressive Patients.

Major depressive disorder (MDD) is the important cause of disability in the world. Major depressive patients that are not respond to the first and second drugs are about 67% and 33%, respectively. The...

Mood Disorders.

This article discusses the prevalence of the major mood disorders (major depressive disorder and bipolar disorder) in the community and within neurologic settings, articulates the steps taken to make ...

Persistent depressive disorder has long-term negative impacts on depression, anxiety, and somatic symptoms at 10-year follow-up among patients with major depressive disorder.

The study aimed to investigate the impacts of persistent depressive disorder (PDD) and pharmacotherapy on depression, anxiety, and somatic symptoms among patients with major depressive disorder (MDD) ...

Medical and Biotech [MESH] Definitions

A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.

Marked depression appearing in the involution period and characterized by hallucinations, delusions, paranoia, and agitation.

A serotonin uptake inhibitor that is used as an antidepressive agent. It has been shown to be effective in patients with major depressive disorders and other subsets of depressive disorders. It is generally more useful in depressive disorders associated with insomnia and anxiety. This drug does not aggravate psychotic symptoms in patients with schizophrenia or schizoaffective disorders. (From AMA Drug Evaluations Annual, 1994, p309)

Inability to experience pleasure due to impairment or dysfunction of normal psychological and neurobiological mechanisms. It is a symptom of many PSYCHOTIC DISORDERS (e.g., DEPRESSIVE DISORDER, MAJOR; and SCHIZOPHRENIA).

An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent.

More From BioPortfolio on "EEG Biomarkers for Predicting Response to Antidepressant Therapy"

Quick Search


Relevant Topics

Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...

Psychiatry is the study of mental disorders and their diagnosis, management and prevention.  Conditions include schizophrenia, severe depression and panic disorders among others. There are pharmaceutical treatments as well as other therapies to help...

Bipolar Disorders
Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, and the ability to carry out day-to-day tasks. Over half of Bipolar cases develops before the age of 25. Bipolar ...

Searches Linking to this Trial