Major Depressive Disorder, Major Depressive Episode
Conditions
Keywords
Major depression, Antidepressant drug, Beta-arrestin, Biomarker, Predictive factor
Brief summary
Predictive factors and biomarkers of response to antidepressants in major depressive disorder are scarce. Beta-arrestins are proteins which inhibit G Protein Coupled Receptors and desensitize serotonergic and dopaminergic receptors. The study hypothesis is that Beta-arrestins 1 and 2 are predictive factors and biomarkers of response to antidepressants in major depressive disorder. In a controlled prospective open naturalistic monocentric 3-month study, 60 patients with a major depressive disorder requiring a treatment with venlafaxine will be included and assessed before treatment, 1 month and 3 months post-treatment. 20 controlled healthy subjects matched for age and gender will also be assessed. The Beta-arrestin pathway will be assessed using genetic polymorphisms, Peripheral Blood Mononuclear Cell measures and functional pathway. Antidepressant response will be assessed using depression scales, olfaction and memory as surrogate markers of neurogenesis.
Detailed description
Rationale: Predictive factors and biomarkers of response to antidepressants in major depressive disorder are scarce. Beta-arrestins are proteins which inhibit G Protein Coupled Receptors and desensitize serotonergic and dopaminergic receptors. Hypothesis: The study hypothesis is that Beta-arrestins 1 and 2 are predictive factors and biomarkers of response to antidepressants in major depressive disorder. Method: In a controlled prospective open naturalistic monocentric 3-month study, 60 patients with a major depressive disorder requiring a treatment with venlafaxine will be included and assessed before treatment, 1 month and 3 months post-treatment. 20 controlled healthy subjects matched for age and gender will also be assessed. Assessments: The Beta-arrestin pathway will be assessed using genetic polymorphisms, Peripheral Blood Mononuclear Cell measures and functional pathway. Antidepressant response will be assessed using depression scales, olfaction and memory as surrogate markers of neurogenesis.
Interventions
antidepressant drug
Sponsors
Institut National de la Santé Et de la Recherche Médicale, France
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* Major Depressive Disorder * current Major Depressive Episode * Hamilton Depression Rating Scale score \> 18 * requiring a new treatment with venlafaxine * written informed consent
Exclusion criteria
* bipolar disorder * psychotic disorder * unstable somatic condition * contraindication to cerebral RMI * current treatment with mood stabilizers
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change from baseline in depressive symptoms on the Hamilton Depression Rating Scale-17 items | 3 months |
Countries
France
Outcome results
None listed