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Therapeutic Potential and Limitation of Serotonin Type 7 Receptor Modulation. Int J Mol Sci 2023; 24:ijms24032070. [PMID: 36768393 PMCID: PMC9916679 DOI: 10.3390/ijms24032070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/15/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023] Open
Abstract
Although a number of mood-stabilising atypical antipsychotics and antidepressants modulate serotonin type 7 receptor (5-HT7), the detailed contributions of 5-HT7 function to clinical efficacy and pathophysiology have not been fully understood. The mood-stabilising antipsychotic agent, lurasidone, and the serotonin partial agonist reuptake inhibitor, vortioxetine, exhibit higher binding affinity to 5-HT7 than other conventional antipsychotics and antidepressants. To date, the initially expected rapid onset of antidepressant effects-in comparison with conventional antidepressants or mood-stabilising antipsychotics-due to 5-HT7 inhibition has not been observed with lurasidone and vortioxetine; however, several clinical studies suggest that 5-HT7 inhibition likely contributes to quality of life of patients with schizophrenia and mood disorders via the improvement of cognition. Furthermore, recent preclinical studies reported that 5-HT7 inhibition might mitigate antipsychotic-induced weight gain and metabolic complication by blocking other monoamine receptors. Further preclinical studies for the development of 5-HT7 modulation against neurodevelopmental disorders and neurodegenerative diseases have been ongoing. To date, various findings from various preclinical studies indicate the possibility that 5-HT7 modifications can provide two independent strategies. The first is that 5-HT7 inhibition ameliorates the dysfunction of inter-neuronal transmission in mature networks. The other is that activation of 5-HT7 can improve transmission dysfunction due to microstructure abnormality in the neurotransmission network-which could be unaffected by conventional therapeutic agents-via modulating intracellular signalling during the neurodevelopmental stage or via loss of neural networks with aging. This review attempts to describe the current and novel clinical applications of 5-HT7 modulation based on preclinical findings.
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Qin B, Huang G, Yang Q, Zhao M, Chen H, Gao W, Yang M. Vortioxetine treatment for generalised anxiety disorder: a meta-analysis of anxiety, quality of life and safety outcomes. BMJ Open 2019; 9:e033161. [PMID: 31784448 PMCID: PMC6924794 DOI: 10.1136/bmjopen-2019-033161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/17/2019] [Accepted: 10/24/2019] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES The aim of this study was to investigate the efficacy, tolerability, safety, and impact on quality of life (QoL) and functional status of vortioxetine treatment for patients with generalised anxiety disorder (GAD) by performing a meta-analysis of randomised controlled trials (RCTs). DESIGN Systematic review and meta-analysis. DATA SOURCES Data mining was conducted in January 2019 across PubMed, EMBASE, PsycINFO, Cochrane Central Register of Controlled Trials Cochrane Library, Web of science and ClinicalTrials.gov. ELIGIBILITY CRITERIA FOR SELECTING STUDIES All published RCTs, which assessed the effect of vortioxetine treatment for patients with GAD when compared with a placebo group, were included. DATA EXTRACTION AND SYNTHESIS Relevant data were extracted and synthesised narratively. Results were expressed as standardised mean differences or ORs with 95% CIs. RESULTS Our meta-analysis showed that multiple doses (2.5, 5 and 10 mg/day) of vortioxetine did not significantly improve the response rates, compared with placebo (OR 1.16, 95% CI 0.84 to 1.60, p=0.38; OR 1.41, 95% CI 0.82 to 2.41, p=0.21; and OR 1.05, 95% CI 0.76 to 1.46, p=0.75). Moreover, there was no statistically significant difference regarding the remission rates, discontinuation for any reason rates, discontinuation due to adverse events rates, Short-Form 36 Health Survey scores or Sheehan Disability Scale scores between administration of multiple doses (2.5, 5 and 10 mg/day) of vortioxetine and placebo. CONCLUSIONS Although our results suggest that vortioxetine did not improve the GAD symptoms, QoL and functional status impairment of patients with GAD, it was safe and well tolerated. Clinicians should interpret and translate our data with caution, as the meta-analysis was based on a limited number of RCTs.
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Affiliation(s)
- Bin Qin
- Department of Neurology, Affiliated Liuzhou General Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Guangsu Huang
- Department of Neurology, Affiliated Liuzhou General Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Qian Yang
- Department of Neurology, Affiliated Liuzhou General Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Mingjun Zhao
- Department of Pharmacy, The Second Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Hong Chen
- Department of Neurology, Affiliated Liuzhou General Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Wen Gao
- Department of Neurology, Affiliated Liuzhou General Hospital of Guangxi University of Science and Technology, Liuzhou, China
| | - Mingxiu Yang
- Department of Neurology, Affiliated Liuzhou General Hospital of Guangxi University of Science and Technology, Liuzhou, China
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Ballanger B, Bath KG, Mandairon N. Odorants: a tool to provide nonpharmacological intervention to reduce anxiety during normal and pathological aging. Neurobiol Aging 2019; 82:18-29. [PMID: 31377537 DOI: 10.1016/j.neurobiolaging.2019.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 05/23/2019] [Accepted: 06/18/2019] [Indexed: 02/07/2023]
Abstract
Anxiety disorders represent 1 of the most common classes of psychiatric disorders. In the aging population and for patients with age-related pathology, the percentage of people suffering of anxiety is significantly elevated. Furthermore, anxiety carries with it an increased risk for a variety of age-related medical conditions, including cardiovascular disease, stroke, cognitive decline, and increased severity of motor symptoms in Parkinson's disease. A variety of anxiolytic compounds are available but often carry with them disturbing side effects that impact quality of life. Among nonmedicinal approaches to reducing anxiety, odor diffusion and aromatherapy are the most popular. In this review, we highlight the emerging perspective that the use of odorants may reduce anxiety symptoms or at least potentiate the effect of other anxiolytic approaches and may serve as an alternative form of therapy to deal with anxiety symptoms. Such approaches may be particularly beneficial in aging populations with elevated risk for these disorders. We also discuss potential neural mechanisms underlying the anxiolytic effects of odorants based on work in animal models.
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Affiliation(s)
- Benedicte Ballanger
- INSERM, U1028; CNRS, UMR5292; Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon F-69000, France; University Lyon, Lyon F-69000, France; University Lyon 1, Villeurbanne, F-69000, France
| | - Kevin G Bath
- Department of Cognitive, Linguistic, and Psychological Sciences, Brown University, Providence RI 02912, United States
| | - Nathalie Mandairon
- INSERM, U1028; CNRS, UMR5292; Lyon Neuroscience Research Center, Neuroplasticity and Neuropathology of Olfactory Perception Team, Lyon F-69000, France; University Lyon, Lyon F-69000, France; University Lyon 1, Villeurbanne, F-69000, France.
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Byun TH, Chaliki SS, Poole KG. New Treatment Options for Depression: A Primer for Internists. Am J Med 2019; 132:678-684. [PMID: 30710538 DOI: 10.1016/j.amjmed.2019.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 10/27/2022]
Abstract
Depression continues to be a challenging condition to treat despite the myriad treatment options available. Primary care providers are increasingly tasked with providing second- and third-line treatments for major depressive disorder, and thus, should be familiar with newer medication therapies that are available. In this article, we aim to provide the general internist and other providers who treat depression in their practice with a succinct review of recent developments in the treatment of depression.
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Affiliation(s)
- Tina H Byun
- Division of Community Internal Medicine, Mayo Clinic, Scottsdale, Ariz.
| | - Swarna S Chaliki
- Division of Community Internal Medicine, Mayo Clinic, Scottsdale, Ariz
| | - Kenneth G Poole
- Division of Community Internal Medicine, Mayo Clinic, Scottsdale, Ariz
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Gomez AF, Barthel AL, Hofmann SG. Comparing the efficacy of benzodiazepines and serotonergic anti-depressants for adults with generalized anxiety disorder: a meta-analytic review. Expert Opin Pharmacother 2018; 19:883-894. [PMID: 29806492 DOI: 10.1080/14656566.2018.1472767] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Generalized anxiety disorder (GAD) is a common form of anxiety disorder. Selective serotonin reuptake inhibitors (SSRIs), serotonin and norepinephrine reuptake inhibitors (SNRIs), and benzodiazepines (BZs) are the most commonly prescribed medications for GAD, but little is known about the relative efficacy of these pharmacological treatments. Areas covered: This study provides a meta-analytic review of the efficacy of these medications in the treatment of adults with GAD. A comprehensive literature search yielded 54 articles reporting 56 unique studies with 12,655 participants treated with either pill placebo (6,191 participants), SSRIs (16 trials, 2,712 participants), SNRIs (17 trials, 2,603 participants), or BZs (23 trials, 1,149 participants). The overall combined effect size was modest to moderate (Hedges' g = 0.37, p < 0.0001). Effect sizes decreased significantly over time. SSRIs (Hedges' g = 0.33) and SNRIs (Hedges' g = 0.36) demonstrated significantly lower effect sizes than BZs (Hedges' g = 0.50). These findings were not due to differences in treatment length or publication year. Expert opinion: The results of this study suggest that the most common forms of pharmacotherapy for adult GAD are moderately effective, with BZs being the most effective drug.
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Affiliation(s)
- Angelina F Gomez
- a Department of Psychological and Brain Sciences , Boston University , Boston , MA , USA
| | - Abigail L Barthel
- a Department of Psychological and Brain Sciences , Boston University , Boston , MA , USA
| | - Stefan G Hofmann
- a Department of Psychological and Brain Sciences , Boston University , Boston , MA , USA
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Abstract
Anxiety disorders (generalized anxiety disorder, panic disorder/agoraphobia, social anxiety disorder, and others) are the most prevalent psychiatric disorders, and are associated with a high burden of illness. Anxiety disorders are often underrecognized and undertreated in primary care. Treatment is indicated when a patient shows marked distress or suffers from complications resulting from the disorder. The treatment recommendations given in this article are based on guidelines, meta-analyses, and systematic reviews of randomized controlled studies. Anxiety disorders should be treated with psychological therapy, pharmacotherapy, or a combination of both. Cognitive behavioral therapy can be regarded as the psychotherapy with the highest level of evidence. First-line drugs are the selective serotonin reuptake inhibitors and serotonin-norepinephrine reuptake inhibitors. Benzodiazepines are not recommended for routine use. Other treatment options include pregabalin, tricyclic antidepressants, buspirone, moclobemide, and others. After remission, medications should be continued for 6 to 12 months. When developing a treatment plan, efficacy, adverse effects, interactions, costs, and the preference of the patient should be considered.
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Affiliation(s)
- Borwin Bandelow
- Department of Psychiatry and Psychotherapy, University Medical Center, Gottingen, Germany
| | - Sophie Michaelis
- Department of Psychiatry and Psychotherapy, University Medical Center, Gottingen, Germany
| | - Dirk Wedekind
- Department of Psychiatry and Psychotherapy, University Medical Center, Gottingen, Germany
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Sowa-Kućma M, Pańczyszyn-Trzewik P, Misztak P, Jaeschke RR, Sendek K, Styczeń K, Datka W, Koperny M. Vortioxetine: A review of the pharmacology and clinical profile of the novel antidepressant. Pharmacol Rep 2017; 69:595-601. [DOI: 10.1016/j.pharep.2017.01.030] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/20/2017] [Accepted: 01/30/2017] [Indexed: 12/31/2022]
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Buoli M, Grassi S, Serati M, Altamura AC. Agomelatine for the treatment of generalized anxiety disorder. Expert Opin Pharmacother 2017; 18:1373-1379. [DOI: 10.1080/14656566.2017.1359257] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Massimiliano Buoli
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico , Milan, Italy
| | - Silvia Grassi
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico , Milan, Italy
| | - Marta Serati
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico , Milan, Italy
| | - A. Carlo Altamura
- Department of Psychiatry, University of Milan, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico , Milan, Italy
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Bandelow B. Treatment of anxiety disorders. DIALOGUES IN CLINICAL NEUROSCIENCE 2017; 19:93-107. [PMID: 28867934 PMCID: PMC5573566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Anxiety disorders (generalized anxiety disorder, panic disorder/agoraphobia, social anxiety disorder, and others) are the most prevalent psychiatric disorders, and are associated with a high burden of illness. Anxiety disorders are often underrecognized and undertreated in primary care. Treatment is indicated when a patient shows marked distress or suffers from complications resulting from the disorder. The treatment recommendations given in this article are based on guidelines, meta-analyses, and systematic reviews of randomized controlled studies. Anxiety disorders should be treated with psychological therapy, pharmacotherapy, or a combination of both. Cognitive behavioral therapy can be regarded as the psychotherapy with the highest level of evidence. First-line drugs are the selective serotonin reuptake inhibitors and serotonin-norepinephrine reuptake inhibitors. Benzodiazepines are not recommended for routine use. Other treatment options include pregabalin, tricyclic antidepressants, buspirone, moclobemide, and others. After remission, medications should be continued for 6 to 12 months. When developing a treatment plan, efficacy, adverse effects, interactions, costs, and the preference of the patient should be considered.
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Affiliation(s)
- Borwin Bandelow
- Department of Psychiatry and Psychotherapy, University Medical Center, Gottingen, Germany
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Zareifopoulos N, Dylja I. Efficacy and tolerability of vilazodone for the acute treatment of generalized anxiety disorder: A meta-analysis. Asian J Psychiatr 2017; 26:115-122. [PMID: 28483071 DOI: 10.1016/j.ajp.2017.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/02/2017] [Accepted: 01/16/2017] [Indexed: 02/06/2023]
Abstract
PURPOSE A systematic review and meta-analysis of all relevant randomized controlled trials was conducted to evaluate the safety and efficacy of vilazodone in the acute treatment of generalized anxiety disorder (GAD). METHODS The literature was searched through all relevant databases in order to identify clinical trials on the use of vilazodone in the treatment of GAD. Once the trials were identified, data was extracted and analyzed using Revman5.3 and open meta-analyst. Assessment of continuous outcomes relied upon standardized mean difference, while binary outcomes were evaluated via relative risk, absolute risk reduction and NNT/NNH. RESULTS A total of 3 well-designed randomized controlled trials with a duration of 10 weeks were conducted, with a total of 844 (intent to treat population) randomized to vilazodone (20-40mg, mean dose=31.42mg) and 618 to placebo. The study drug was significantly superior (p<0.001) to placebo in continuous primary outcome measures (HAMA reduction at week 8, CGI-S reduction at week 8 and CGI-I score at week 8). Binary outcome measures however are not as promising, probably reflecting a small effect size [NNT=10 (6.67, 21.28) for induction of response according to the HAMA scale and NNT=12 (7.58, 34.48) for the CGI-I scale], although statistical significance (p<0.01) was attained for both. The study drug was significantly (p<0.001) more likely than placebo to induce adverse effects and to be discontinued due to adverse effects NNH=14 (10.31, 22.22), most common of which were nausea and diarrhea. DISCUSSION Vilazodone was superior to placebo in the short term treatment of GAD. However, due to the small effect size and high incidence of adverse events, the utility of vilazodone in the treatment of GAD remains unclear. Likelihood to be helped (HAMA response) or harmed (discontinuation due to adverse events) was inconclusive [1.4 (0.48, 3.33)], demonstrating a need for further trials and direct comparisons of vilazodone to the standard treatments for the disorder. Thus vilazodone cannot be recommended yet as a first line agent. CONCLUSION AND LIMITATIONS Vilazodone is an effective treatment for generalized anxiety disorder, though further trials are required for a more adequate comparison with established treatments, as well as long term maintenance studies to determine the validity of claims regarding the absence of sexual side effects.
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Affiliation(s)
| | - Irene Dylja
- University of Patras School of Medicine, Rion, Patras, Achaea, 26504, Greece.
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Zareifopoulos N, Papatheodoropoulos C. Effects of 5-HT-7 receptor ligands on memory and cognition. Neurobiol Learn Mem 2016; 136:204-209. [PMID: 27780766 DOI: 10.1016/j.nlm.2016.10.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/12/2016] [Accepted: 10/21/2016] [Indexed: 10/20/2022]
Abstract
The 5-HT7R is the most recently cloned serotonin receptor and thus one the least studied. Many drugs, experimental and in clinical use bind to 5-HT7 with high affinity, though their effects have yet to be clearly elucidated. Its physiological function, though not completely clear, is mostly associated with learning and memory, with both agonists and antagonists possessing subtle procognitive and promnesic properties. We consider it a promising area of research, though still in its infancy, which may one day lead to clinical benefits for patients with various afflictions characterised by cognitive dysfunction, particularily autism spectrum disorder, fragile X syndrome and Alzheimer's disease.
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