Characterizing sexual function in patients with generalized anxiety disorder: a pooled analysis of three vilazodone studies

Impact of Occupational Therapy Interventions on Sexual Dysfunction in Epilepsy: A Case Report

Epilepsy is a chronic neurological disorder characterized by recurrent seizures, necessitating lifelong medication management. One common side effect of these medications is sexual dysfunction. In this case report, a 37-year-old male epilepsy patient who was an office clerk by occupation presented at the outpatient department (OPD) of occupational therapy with the chief complaints of anxiety, depression, and sexual dysfunction primarily reporting of anorgasmia, which required longer foreplay to reach an effective erection leading to delayed ejaculation. The patient reported a nine-year history of complicated, partial, and generalized seizures for which he consulted the physician who prescribed him AED (antiepileptic drug) carbamazepine twice a day; however, the symptoms persisted, and the medication was changed to pregabalin. In addition to this, the patient was advised for occupational therapy intervention by the physician. In the occupational therapy department, the patient was assessed for various parameters that involved sexual functioning using the Changes in Sexual Functioning Questionnaire-Male (CSFQ-M), for anxiety using the Generalised Anxiety Disorder-7 (GAD-7) questionnaire, for depression using the Patient Health Questionnaire-9 (PHQ-9), and quality of life (QOL) using the Quality of Life in Epilepsy Inventory - 31 (QOLIE-31) questionnaire. As part of the intervention, occupational therapy was provided to the patient for four months, which mainly focused on three major areas: health promotion, remediation, and modification. Each of these methods was used at all levels of the intervention, as outlined by the EX-Permission, Limited Information, Specific Suggestions, and Intensive Therapy model (P-LI-SS-IT), which reflected positive results, as there was enhanced sexual functioning, reduced symptoms of depression, and anxiety, and improved quality of life. In conclusion, occupational therapists along with doctors and other practitioners should focus on addressing intimacy and sexuality within their practice for epilepsy patients demonstrating symptoms of sexual dysfunction, which will consequently impact an individual's QOL. Additionally, screening and monitoring of sexual dysfunction should be included during the routine assessment of patients with epilepsy.

Sexual dysfunction among people with mental illness attending follow-up treatment at a tertiary hospital, Jimma University Medical Center: A cross-sectional study

Background

Sexual function is a complex behavior influenced by several factors that can result in dysfunction. It is highly prevalent among patients with mental illness who are on psychotropic medications. Assessing those patients has paramount importance for appropriate intervention to take place.

Methods

This study was a facility-based cross-sectional study design conducted from 1 March to 30 June 2022. A Sexual Functioning Questionnaire (CSFQ-14) was used to assess sexual dysfunctions. Data were analyzed using SPSS version 21 software. Logistic regression analysis was performed to assess the association between dependent and independent variables. Independent variables with a p-value < 0.05 were taken as statistically significant with sexual dysfunction.

Results

The prevalence of sexual dysfunction was 45.4 % among respondents. The presence of chronic medical illness, being on typical antipsychotic treatment, being on psychiatric treatment for 24 months and more, moderate level of alcohol use, and being aged 35 and above were significantly associated with sexual dysfunction.

Conclusion

The prevalence of sexual dysfunction among people with mental illness is high. Therefore, the clinician needs to routinely enquire about sexual symptoms during follow-up treatment and give appropriate interventions with special attention to patients with chronic medical conditions and patients taking antipsychotics and psychotropic drugs for a long period of time.

The clinical utility of newer antidepressant agents: Understanding the role in management of MDD

Whereas MDD is characterized in part by changes in mood, other symptoms can also cause significant impairment, including sexual dysfunction, cognitive impairment, and fatigue. Newer antidepressants are explored with the goal of more optimally treating these non–mood-related symptoms of MDD. The 3 oral antidepressants that have been FDA-approved most recently include vortioxetine, vilazodone, and levomilnacipran. Unique features of these antidepressants are explored through 3 patient cases.

Vilazodone-phospholipid mixed micelles for enhancing oral bioavailability and reducing pharmacokinetic variability between fed and fasted states

Despite the effectiveness and high tolerability of vilazodone (VLZ) as an antidepressant, its use is still limited due to its poor solubility and food dependent absorption. This study aims to load VLZ-phospholipid complex into self-assembled micelles forming VLZ-PL mixed micelles (VLZ-PL-MM), that can enhance VLZ solubility, improve its bioavailability and reduce the pharmacokinetic variability between the fed and fasting conditions. The effect of the surfactant type and concentration was assessed using four different non-ionic surfactants (Brij 58, Tween 80, Labrasol and Pluronic F127) in four different weight ratios between the drug-complex and surfactant (1:0.5, 1:1, 1:2 and 1:3 w/w). Two VLZ-PL-MM formulae prepared using Brij 58 and Labrasol in 1:3 w/w ratio were selected as optimised ones since they have the highest encapsulation efficiency (100.83 and 93.87%, respectively), a particle size below 250 nm (206.73 and 221.33 nm, respectively) and negative zeta potential values (-29.63, -17.20 mV, respectively). Lyophilisation of these formulations using 3% sucrose was successful with no statistical changes in particle size and zeta potential upon rehydration. Both formulations elicited faster and higher in-vitro drug release profiles compared to the pure drug and the marketed tablet. In addition, both selected formulae improved ex-vivo permeation across rabbit intestinal membrane compared to the pure drug and the marketed tablet, with marked superiority of the one prepared using Brij 58. The results of the in vivo study in male albino rabbits revealed similar AUC_0-24 values after the oral administration of the best achieved VLZ-PL-MM system under fed and fasting conditions (769.89 and 741.55 ng.h mL^-1, respectively). On the other hand, the marketed product showed significantly lower values of the AUC_0-24 relative to the VLZ-PL-MM system and there was a marked enhancement of absorption of drug from the marketed product in presence of food (244.24 and 174.96 ng.h mL^-1 under fed and fasting conditions, respectively. In addition, VLZ concentrations in the brain after 24 hours obtained from the selected VLZ-PL-MM were significantly higher than those obtained from marketed tablet under fed and fasting conditions. Thus, the phospholipid mixed micelle formulation enhances the oral bioavailability of the poorly soluble drug and reduces the pharmacokinetic variability between fasting and fed conditions.

Pharmacotherapy of Anxiety Disorders: Current and Emerging Treatment Options

(Appeared originally in Frontiers in Psychiatry 2020 Dec 23; 11:595584)

Female Sexual Function During the COVID-19 Pandemic in the United States

Introduction

International studies have demonstrated increasing rates of sexual dysfunction amidst the coronavirus disease 2019 (COVID-19) pandemic; however, the impact of the pandemic on female sexual function in the United States is unknown.

Aim

To assess the impact of the COVID-19 pandemic on female sexual function and frequency in the United States.

Methods

A pre-pandemic survey containing the Female Sexual Function Index (FSFI) and demographic questions was completed by adult women in the United States from October 20, 2019 and March 1, 2020. The same women were sent a follow-up survey also containing the FSFI, as well as the Patient Health Questionnaire for Depression and Anxiety with 4 items (PHQ-4), and questions pertaining to mask wearing habits, job loss, and relationship changes. Risk for female sexual dysfunction (RFSD) was defined as FSFI < 26.55.

Main Outcome Measure

Differences in pre-pandemic and intra-pandemic female sexual function, measured by the FSFI, and sexual frequency.

Results

Ninety-one women were included in this study. Overall FSFI significantly decreased during the pandemic (27.2 vs 28.8, P = .002), with domain-specific decreases in arousal (4.41 vs 4.86, P = .0002), lubrication (4.90 vs 5.22, P = .004), and satisfaction (4.40 vs 4.70, P = .04). There was no change in sexual frequency. Contingency table analysis of RFSD prior to and during the pandemic revealed significantly increased RFSD during the pandemic (P = .002). Women who developed RFSD during the pandemic had higher PHQ-4 anxiety subscale scores (3.74 vs 2.53, P = .01) and depression subscale scores (2.74 vs 1.43, P = .001) than those who did not. Development of FSD was not associated with age, home region, relationship status, mask wearing habits, knowing someone who tested positive for COVID-19, relationship change, or job loss and/or reduction during the pandemic.

Conclusion

In this population of female cannabis users, risk for sexual dysfunction increased amidst the COVID-19 pandemic and is associated with depression and anxiety symptoms. Bhambhvani HP, Chen T, Wilson-King AM, et al. Female Sexual Function During the COVID-19 Pandemic in the United States. Sex Med 2021;9:100355.

Pharmacotherapy of Anxiety Disorders: Current and Emerging Treatment Options

Anxiety disorders are the most prevalent psychiatric disorders and a leading cause of disability. While there continues to be expansive research in posttraumatic stress disorder (PTSD), depression and schizophrenia, there is a relative dearth of novel medications under investigation for anxiety disorders. This review's first aim is to summarize current pharmacological treatments (both approved and off-label) for panic disorder (PD), generalized anxiety disorder (GAD), social anxiety disorder (SAD), and specific phobias (SP), including selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), azapirones (e.g., buspirone), mixed antidepressants (e.g., mirtazapine), antipsychotics, antihistamines (e.g., hydroxyzine), alpha- and beta-adrenergic medications (e.g., propranolol, clonidine), and GABAergic medications (benzodiazepines, pregabalin, and gabapentin). Posttraumatic stress disorder and obsessive-compulsive disorder are excluded from this review. Second, we will review novel pharmacotherapeutic agents under investigation for the treatment of anxiety disorders in adults. The pathways and neurotransmitters reviewed include serotonergic agents, glutamate modulators, GABAergic medications, neuropeptides, neurosteroids, alpha- and beta-adrenergic agents, cannabinoids, and natural remedies. The outcome of the review reveals a lack of randomized double-blind placebo- controlled trials for anxiety disorders and few studies comparing novel treatments to existing anxiolytic agents. Although there are some recent randomized controlled trials for novel agents including neuropeptides, glutamatergic agents (such as ketamine and d-cycloserine), and cannabinoids (including cannabidiol) primarily in GAD or SAD, these trials have largely been negative, with only some promise for kava and PH94B (an inhaled neurosteroid). Overall, the progression of current and future psychopharmacology research in anxiety disorders suggests that there needs to be further expansion in research of these novel pathways and larger-scale studies of promising agents with positive results from smaller trials.

Efficacy and tolerability of vilazodone for the acute treatment of generalized anxiety disorder: A meta-analysis

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.