Limits...
Vilazodone for the treatment of major depressive disorder: focusing on its clinical studies and mechanism of action.

Wang SM, Han C, Lee SJ, Patkar AA, Masand PS, Pae CU - Psychiatry Investig (2015)

Bottom Line: In terms of its mechanism of actions, we sought to elaborate them mainly through preclinical animal studies.Vilazodone is an antidepressant with novel mechanism of action because its chemical structure is unrelated to conventional antidepressant, and it has a selective serotonin (5-HT) reuptake inhibitor and 5-HT1A receptor partial agonist profile.Vilazodone is an effective and safe treatment option with its novel action mechanisms for patients with depression.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea.

ABSTRACT
We tried to review and update clinical and preclinical studies evaluating vilazodone's role as an antidepressant for patients with major depressive disorder (MDD). In terms of its mechanism of actions, we sought to elaborate them mainly through preclinical animal studies. A data search was conducted in November 1, 2013, using the key terms "vilazodone" or "Viibryd," in PubMed and Medline databases. All published and unpublished studies are included and citations from publications were also reviewed for additional references. Five unpublished, phase-II and two pivotal published phase-III clinical trials with nearly identical design (8-week, double-blind, randomized, and placebo-controlled) investigated efficacy of vilazodone, were found for the treatment of patients with MDD. Two post-hoc studies and one long-term open study were also included. Data were thoroughly reviewed to incorporate the pharmacology, action mechanism, efficacy and safety for the vilazodone in the treatment of major depressive disorder. Vilazodone is an antidepressant with novel mechanism of action because its chemical structure is unrelated to conventional antidepressant, and it has a selective serotonin (5-HT) reuptake inhibitor and 5-HT1A receptor partial agonist profile. Vilazodone is an effective and safe treatment option with its novel action mechanisms for patients with depression. Its putative benefits compared with other antidepressants must be thoroughly studied in adequately-powered and well-designed future clinical trials.

No MeSH data available.


Related in: MedlinePlus

Vilazodone's mechanism of action. By acting only as a partial agonist at 5-HT1A autoreceptors, vilazodone may more rapidly desensitize 5-HT1A autoreceptors without causing excess activation of 5-HT1A autoreceptor-mediated serotonin inhibition. In 5-HT1A post-synaptic receptors, vilazodone will enhance 5-HT. Synergistic with its SSRI properties, vilazodone would yield even more serotonin release. 5HT: serotonin, SERT: serotonin transporter, SSRI: selective serotonin reuptake inhibitor.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4390584&req=5

Figure 2: Vilazodone's mechanism of action. By acting only as a partial agonist at 5-HT1A autoreceptors, vilazodone may more rapidly desensitize 5-HT1A autoreceptors without causing excess activation of 5-HT1A autoreceptor-mediated serotonin inhibition. In 5-HT1A post-synaptic receptors, vilazodone will enhance 5-HT. Synergistic with its SSRI properties, vilazodone would yield even more serotonin release. 5HT: serotonin, SERT: serotonin transporter, SSRI: selective serotonin reuptake inhibitor.

Mentions: In this regard, vilazodone may cause faster and larger desensitization of 5-HT1A autoreceptors without causing excess activation of 5-HT1A autoreceptor-mediated serotonin inhibition by acting only as a partial agonist at these receptors.33,34 Synergistic with its SSRI property, vilazodone would yield even more serotonin release by lowering negative feedback mechanisms mediated by 5-HT1A autoreceptors and increasing stimulation of 5-HT1A postsynaptic receptors (Figure 2).35,36


Vilazodone for the treatment of major depressive disorder: focusing on its clinical studies and mechanism of action.

Wang SM, Han C, Lee SJ, Patkar AA, Masand PS, Pae CU - Psychiatry Investig (2015)

Vilazodone's mechanism of action. By acting only as a partial agonist at 5-HT1A autoreceptors, vilazodone may more rapidly desensitize 5-HT1A autoreceptors without causing excess activation of 5-HT1A autoreceptor-mediated serotonin inhibition. In 5-HT1A post-synaptic receptors, vilazodone will enhance 5-HT. Synergistic with its SSRI properties, vilazodone would yield even more serotonin release. 5HT: serotonin, SERT: serotonin transporter, SSRI: selective serotonin reuptake inhibitor.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4390584&req=5

Figure 2: Vilazodone's mechanism of action. By acting only as a partial agonist at 5-HT1A autoreceptors, vilazodone may more rapidly desensitize 5-HT1A autoreceptors without causing excess activation of 5-HT1A autoreceptor-mediated serotonin inhibition. In 5-HT1A post-synaptic receptors, vilazodone will enhance 5-HT. Synergistic with its SSRI properties, vilazodone would yield even more serotonin release. 5HT: serotonin, SERT: serotonin transporter, SSRI: selective serotonin reuptake inhibitor.
Mentions: In this regard, vilazodone may cause faster and larger desensitization of 5-HT1A autoreceptors without causing excess activation of 5-HT1A autoreceptor-mediated serotonin inhibition by acting only as a partial agonist at these receptors.33,34 Synergistic with its SSRI property, vilazodone would yield even more serotonin release by lowering negative feedback mechanisms mediated by 5-HT1A autoreceptors and increasing stimulation of 5-HT1A postsynaptic receptors (Figure 2).35,36

Bottom Line: In terms of its mechanism of actions, we sought to elaborate them mainly through preclinical animal studies.Vilazodone is an antidepressant with novel mechanism of action because its chemical structure is unrelated to conventional antidepressant, and it has a selective serotonin (5-HT) reuptake inhibitor and 5-HT1A receptor partial agonist profile.Vilazodone is an effective and safe treatment option with its novel action mechanisms for patients with depression.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea.

ABSTRACT
We tried to review and update clinical and preclinical studies evaluating vilazodone's role as an antidepressant for patients with major depressive disorder (MDD). In terms of its mechanism of actions, we sought to elaborate them mainly through preclinical animal studies. A data search was conducted in November 1, 2013, using the key terms "vilazodone" or "Viibryd," in PubMed and Medline databases. All published and unpublished studies are included and citations from publications were also reviewed for additional references. Five unpublished, phase-II and two pivotal published phase-III clinical trials with nearly identical design (8-week, double-blind, randomized, and placebo-controlled) investigated efficacy of vilazodone, were found for the treatment of patients with MDD. Two post-hoc studies and one long-term open study were also included. Data were thoroughly reviewed to incorporate the pharmacology, action mechanism, efficacy and safety for the vilazodone in the treatment of major depressive disorder. Vilazodone is an antidepressant with novel mechanism of action because its chemical structure is unrelated to conventional antidepressant, and it has a selective serotonin (5-HT) reuptake inhibitor and 5-HT1A receptor partial agonist profile. Vilazodone is an effective and safe treatment option with its novel action mechanisms for patients with depression. Its putative benefits compared with other antidepressants must be thoroughly studied in adequately-powered and well-designed future clinical trials.

No MeSH data available.


Related in: MedlinePlus