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Fluoxetine Versus Fluoxetine Plus DU125530 in Major Depressive Disorder

2014-08-27 03:13:52 | BioPortfolio

Summary

The purpose of this study is to examine whether the speed of the clinical antidepressant action of fluoxetine can be accelerated by administering DU125530 a full 5-HT1A antagonist.

Description

SSRI acts by blocking the serotonin transporter (5-HT), increasing the availability of serotonin at the synaptic cleft averting its reuptake. The increment of serotonin activates 5-HT1A presynaptic autoreceptors, resulting in a modulation in the release of serotonin by the presynaptic neuron. It is proposed that 5-HT1A receptor antagonism could accelerate the clinical effect of antidepressants by preventing this negative feedback.Preclinical data obtained with selective 5-HT1A antagonists, such as pindolol, and with mice lacking 5-HT1a receptors supports this hypothesis. Results on partial antagonists (pindolol) are conclusive in accelerating SSRI. It is reasonable to call into question whether a total antagonism of 5-HT1a receptors could imply a more rapid antidepressant response. To test this hypothesis we conducted a double blind, randomised, controlled trial with DU 123550 added to fluoxetine 20 mg/day

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Major Depression

Intervention

DU125530, Placebo

Location

Hospital de Sant Pau
Barcelona
Spain
08027

Status

Terminated

Source

Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:13:52-0400

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