Duloxetine for the Treatment of Major Depressive Disorder in Women Ages 40 to 55 Years

Assessing the meaningful change threshold of Quality of Life in Depression Scale using data from two phase 3 studies of esketamine nasal spray

Background

Major depressive disorder (MDD) directly impacts patients’ lives including symptoms, functioning and health-related quality-of-life (HRQoL). Patient-reported outcomes can capture these impacts, however interpretation of clinical meaningfulness of these measurements are often not readily available. Meaningful change thresholds (MCTs) can be derived for clinical outcome assessments to quantify the change in symptoms that is meaningful to the patient following pharmacologic treatment or other interventions. The objective of this analysis was to determine the within-patient MCT of the self-reported Quality-of-Life in Depression Scale (QLDS) among patients with MDD and active suicidal ideation with intent (MDSI) using an anchor-based approach.

Methods

Data from 2 randomized phase-3 trials of esketamine nasal spray (ASPIRE I and ASPIRE II) were analyzed. The Montgomery–Åsberg Depression Rating Scale (MADRS) was the primary anchor with three different severity criteria. Other anchor variables utilized were Clinical Global Impression of Severity of Suicidality-revised version, Clinical Global Impression of Imminent Suicide Risk, and EuroQol Visual Analog Scale [EQ-VAS]. Spearman correlation coefficients between the change in QLDS and anchor variables were calculated. The mean change in QLDS score at Day 25 from baseline was calculated based on the categorical change in the anchor. Coefficient yield from linear regression of the mean changes in EQ-VAS and QLDS, and distribution-based approach with ½ SD of change in QLDS were considered.

Results

In ASPIRE I, mean (SD) improvement in QLDS score among patients with one category improvement in MADRS from baseline to Day 25 was − 8.22 (8.87), − 8.30 (9.01), and − 8.20 (8.92) using severity criteria #1, #2, and #3, respectively. Patients who achieved a 7-point improvement (MCT) in EQ-VAS yielded a mean − 9.69-point improvement in QLDS at Day 25. The ½ SD of change in QLDS was 5.63. Similar results were obtained for ASPIRE II. The MCTs identified using multiple anchors across both trials ranged from − 11.4 to − 6.7 and had an overall mean of − 7.90 (ASPIRE I) and − 7.92 (ASPIRE II). Thus, an 8-point change was recommended as the MCT for QLDS.

Conclusion

The recommended MCT will help quantify within-person changes in HRQoL using patient-reported QLDS and determine meaningful treatment benefit in an MDD patient population with acute suicidal ideation or behavior.

Trial registration: Name of the registry: ClinicalTrials.gov. Trial registration number: ASPIRE I (NCT03039192), ASPIRE II (NCT03097133). Date of registration: February 01, 2017; March 31, 2017. URL of trial registry record: https://clinicaltrials.gov/ct2/show/NCT03039192; https://clinicaltrials.gov/ct2/show/NCT03097133.

Supplementary Information

The online version contains supplementary material available at 10.1186/s41687-022-00453-y.

Venlafaxine vs. fluoxetine in postmenopausal women with major depressive disorder: an 8-week, randomized, single-blind, active-controlled study

BACKGROUND

In the population of postmenopausal patients with major depressive disorder (MDD), the superiority of serotonin-norepinephrine reuptake inhibitors (SNRIs) over selective serotonin reuptake inhibitors (SSRIs) has not yet been definitively proven. Consequently, a direct comparison of the efficacy of SSRIs and SNRIs in the treatment of postmenopausal depression could provide relevant data. The aim of this study was to compare the efficacy and safety of venlafaxine vs. fluoxetine in the treatment of postmenopausal MDD.

METHODS

This was an 8-week, multicenter, randomized, single-blind, active-controlled trial conducted at a psychiatric hospital (Beijing Anding Hospital) and a general hospital (Beijing Chaoyang Hospital) between April 2013 and September 2017. The primary outcome measure was improving depressive symptoms (Hamilton Depression Rating Scale (HAMD-24) score). The secondary outcomes included the change of HAMD-24 anxiety/somatization factor score and Clinical Global Impressions-Improvement (CGI-I) response rate. Safety was assessed by treatment-emergent adverse events (TEAEs) and laboratory tests. Efficacy was analyzed by using the full analysis set (FAS) following the modified intention-to-treat (mITT) principle. The primary endpoint measurements were analyzed using a mixed-effect model for repeated measures (MMRM) model with patients as a random-effect factor, treatment group as the independent variable, time as a repeated measure, and baseline covariates, using a first-order ante dependence covariance matrix.

RESULTS

A total of 184 women were randomized. The full analysis set (FAS) included 172 patients (venlafaxine, n = 82; fluoxetine, n = 90). Over the 8-week study period, the reduction in HAMD-24 scores was significant (P < 0.001) in both groups, while a significantly greater decline from baseline was observed in the venlafaxine group compared with the fluoxetine group (least-squares mean difference [95% CI]: - 2.22 [- 7.08, - 0.41]), P = 0.001). The baseline-to-week-8 least-squares mean change of the anxiety/somatization factor scores, CGI-I response rate were greater in the venlafaxine group than in the fluoxetine group (all P < 0.05). The most frequent TEAEs (≥5%) in both groups were nausea, somnolence, dizziness, headache, and dry mouth. There was no significant difference in the incidence of adverse events between the two groups.

CONCLUSION

Venlafaxine was well tolerated and compared to fluoxetine, it led to a greater improvement in the treatment of postmenopausal MDD.

TRIAL REGISTRATION

Clinical Trials. gov #NCT01824433 . The trial was registered on April 4, 2013.

A Systematic Review of Efficacy, Safety, and Tolerability of Duloxetine

Duloxetine is a serotonin-norepinephrine reuptake inhibitor approved for the treatment of patients affected by major depressive disorder (MDD), generalized anxiety disorder (GAD), neuropathic pain (NP), fibromyalgia (FMS), and stress incontinence urinary (SUI). These conditions share parallel pathophysiological pathways, and duloxetine treatment might be an effective and safe alternative. Thus, a systematic review was conducted following the 2009 Preferred Reporting Items (PRISMA) recommendations and Joanna Briggs Institute Critical (JBI) Appraisals guidelines. Eighty-five studies focused on efficacy, safety, and tolerability of duloxetine were included in our systematic review. Studies were subdivided by clinical condition and evaluated individually. Thus, 32 studies of MDD, 11 studies of GAD, 19 studies of NP, 9 studies of FMS, and 14 studies of SUI demonstrated that the measured outcomes indicate the suitability of duloxetine in the treatment of these clinical conditions. This systematic review confirms that the dual mechanism of duloxetine benefits the treatment of comorbid clinical conditions, and supports the efficacy, safety, and tolerability of duloxetine in short- and long-term treatments.

Comparative Efficacy and Safety of Escitalopram versus Desvenlafaxine in Postmenopausal Women with Depression and Anxiety: A Randomized, Open-Label, Comparative Trial

Aims and Objectives:

The aim was to evaluate the comparative efficacy and safety of escitalopram versus desvenlafaxine in postmenopausal women with depression and anxiety in our study cohort.

Materials and Methods:

A randomized, open-label, intention-to-treat, comparative study was conducted over a period of 1 year. Group 1 (n = 20) patients received tablet escitalopram 10 mg once daily orally which was increased to 20 mg/day when needed at the first follow-up. Group 2 (n = 20) patients received tablet desvenlafaxine 50 mg once daily orally which was increased to 100 mg/day when needed at the first follow-up. Patients were followed at 3 and 6 weeks. Primary endpoints were change in baseline scores (recorded as mean ± standard deviation) of Hamilton Depression Rating Scale (HAM-D) and Hamilton Anxiety Rating Scale (HAM-A), and safety was also assessed and compared.

Results:

Forty patients completed the study. Escitalopram was statistically better than desvenlafaxine in reducing depression after 6 weeks of treatment (P < 0.05). Both the drugs were found to be equally effective in treating anxiety. Furthermore, they showed comparable safety and tolerability.

Conclusion:

Escitalopram appears to be more effective on short-term basis in treating depression, and both the drugs appear equally effective in combating anxiety. Furthermore, they appear to be equally safe and well tolerated in postmenopausal women with depression and anxiety.

Emerging treatments for major depression

Antidepressant drugs were introduced into clinical practice in the mid-20th Century. While for the most part they have proven effective for the amelioration of depressive symptoms, they are associated with significant deficiencies. These well-recognized shortcomings have given impetus to the pursuit of new molecules that seek to improve on the efficacy, tolerability and safety of existing medications. The following article reviews several new compounds that may have antidepressant potential. Some are more advanced in development, having undergone clinical trials, whereas the clinical potential of others is yet to be explored. For this latter group of compounds, the antidepressant potential relies on their activity in validated animal models. Agomelatine and duloxetine are in the first category, having shown antidepressant efficacy in clinical trials. The blockade of cortisol secretion continues to be a focus of attention for the development of new antidepressants. Thus, synthesis inhibitors, nonpeptide antagonists of corticotropin-releasing factor and glucocorticoid receptor antagonists show some promise in clinical and preclinical tests. Antagonists of the neuropeptide substance P, vasopressin and neuropeptide Y represent a departure of approach from traditional monoamine receptor-based mechanisms. While the clinical results with one substance P antagonist have led to the cessation of further trials, other molecules are in development. Approaches to treatment based on glutamatergic transmission arose from observations in animal models. The clinical evaluation of such compounds awaits further development. The extent to which new agents can be judged to have met the goals of efficacy, tolerability and safety rely not only acute treatment trials but also on longer-term outcomes and postmarketing surveillance. Whether any of the new agents canvassed here prove to be significantly better than existing agents is clearly a judgement for the future.

Efficacy and safety of duloxetine 60 mg once daily in major depressive disorder: a review with expert commentary

OBJECTIVE

Major depressive disorder (MDD) is a significant public health concern and challenges health care providers to intervene with appropriate treatment. This article provides an overview of efficacy and safety information for duloxetine 60 mg/day in the treatment of MDD, including its effect on painful physical symptoms (PPS).

DESIGN

A literature search was conducted for articles and pooled analyses reporting information regarding the use of duloxetine 60 mg/day in placebo-controlled trials.

SETTING

Placebo-controlled, active-comparator, short- and long-term studies were reviewed.

PARTICIPANTS

Adult (≥18 years) patients with MDD.

MEASUREMENTS

Effect sizes for continuous outcome (change from baseline to endpoint) and categorical outcome (response and remission rates) were calculated using the primary measures of 17-item Hamilton Rating Scale for Depression (HAMD-17) or Montgomery-Åsberg Depression Rating Scale (MADRS) total score. The Brief Pain Inventory and Visual Analogue Scales were used to assess improvements in PPS. Glass estimation method was used to calculate effect sizes, and numbers needed to treat (NNT) were calculated based on HAMD-17 and MADRS total scores for remission and response rates. Safety data were examined via the incidence of treatment-emergent adverse events and by mean changes in vital-sign measures.

RESULTS

Treatment with duloxetine was associated with small-to-moderate effect sizes in the range of 0.12 to 0.72 for response rate and 0.07 to 0.65 for remission rate. NNTs were in the range of 3 to 16 for response and 3 to 29 for remission. Statistically significant improvements (p≤0.05) were observed in duloxetine-treated patients compared to placebo-treated patients in PPS and quality of life. The safety profile of the 60-mg dose was consistent with duloxetine labeling, with the most commonly observed significant adverse events being nausea, dry mouth, diarrhea, dizziness, constipation, fatigue, and decreased appetite.

CONCLUSION

These results reinforce the efficacy and tolerability of duloxetine 60 mg/day as an effective short- and long-term treatment for adults with MDD. The evidence of the independent analgesic effect of duloxetine 60 mg/day supports its use as a treatment for patients with PPS associated with depression. This review is limited by the fact that it included randomized clinical trials with different study designs. Furthermore, data from randomized controlled trials may not generalize well to real clinical practice.

Duloxetine in the acute and continuation treatment of major depressive disorder

Duloxetine is a serotonin-noradrenaline reuptake inhibitor with indications for use in the short term, continuation and maintenance treatment of major depression. Although clinicians currently have access to a range of medications for the treatment of depression, a significant number of patients fail to respond or remit from their illness despite adequate trials of treatment with multiple agents. A developing concept is that antidepressant strategies that combine multiple mechanisms of action may have advantages over agents with single mechanisms (i.e., selective serotonin reuptake inhibitors). As a dual-acting agent, duloxetine offers the promise of advantages in terms of efficacy over selective serotonin reuptake inhibitors while retaining a favorable safety and tolerability profile in comparison to older agents. Likewise, duloxetine is of interest in the treatment of certain conditions commonly seen in conjunction with major depression, particularly anxiety and pain, both of which may respond more favorably to agents that act on both serotonin and noradrenaline neurotransmitter systems.

Depression or menopause? Presentation and management of major depressive disorder in perimenopausal and postmenopausal women

OBJECTIVE

The purpose of this review was to examine the risk of depression onset in perimenopausal and postmenopausal women, discuss the importance and rationale for screening for major depressive disorder (MDD) in women in the menopausal transition, and review therapeutic options for management of MDD in perimenopausal and postmenopausal women.

DATA SOURCES

PubMed was searched (1970 to 2008) using combinations of the following terms: major depressive disorder, perimenopause, postmenopause, mood disorder, risk factors, reproductive period, family practice, differential diagnosis, hormone, estrogen replacement therapy, reuptake inhibitors, and neurotransmitter.

STUDY SELECTION

All relevant articles identified via the search terms reporting original data and published in English were considered for inclusion. Twenty-two cross-sectional and longitudinal studies were utilized to evaluate the relationship between the menopausal transition and risk of mood disorders and to formulate recommendations for screening and management of MDD in perimenopausal and postmenopausal women.

DATA EXTRACTION

RESEARCH STUDIES UTILIZED THE FOLLOWING MEASURES: postal questionnaires, Women's Health Questionnaire, Beck Depression Inventory, Center for Epidemiologic Studies-Depression scale, Modified Menopause Symptom Inventory, 12-item symptom questionnaire, or Structured Clinical Interview for DSM-IV.

DATA SYNTHESIS

Menopause is a normal, and for most women largely uneventful, part of life. For some women, however, the menopausal transition is a period of biologic vulnerability with noticeable physiologic, psychological, and somatic symptoms. The perimenopausal period is associated with a higher vulnerability for depression, with risk rising from early to late perimenopause and decreasing during postmenopause. Women with a history of depression are up to 5 times more likely to have a MDD diagnosis during this time period.

CONCLUSIONS

Routine screening of this at-risk population followed by careful assessment for depressive symptoms can help identify the presence of MDD in the menopausal transition. Recognition of menopausal symptoms, with or without depression, is important given their potential impact on quality of life.

Burning mouth syndrome responsive to duloxetine: a case report

INTRODUCTION

Burning mouth syndrome (BMS) is a chronic, idiopathic, intraoral mucosal pain condition in the absence of specific oral lesions and systemic disease. Among evidence-based pharmacological treatments for this disorder, topical and systemic clonazepam, levosulpiride, selective serotonin reuptake inhibitors have been used with partial results.

CASE

We report a case of a 65-year-old otherwise healthy woman with a 3-year history of oral burning. Clinical and laboratory evaluations allowed us to make a diagnosis of burning mouth syndrome. She was treated with duloxetine (60 mg p.o. qd), a selective serotonin, and norepinephrine reuptake inhibitor, obtaining a complete remission of symptoms, evaluated via standardized clinical rating scales, and an improvement of her quality of life and level of functioning.

DISCUSSION

The pathogenesis of BMS still remains unclear. Recently, it has been suggested an underlying neuropathic mechanism, demonstrating a dysfunction in the trigeminal nociceptive pathways at peripheral and/or central nervous system level. The rationale behind the administration of duloxetine resides in its central mechanism of action, and analgesic effects previously demonstrated in diabetic peripheral neuropathy, and fibromyalgia. Also, it has been shown to reduce painful physical symptoms associated with depression.

CONCLUSION

We hypothesize that duloxetine might represent a useful, effective, and additional therapeutic option in the treatment of BMS.

Desvenlafaxine and escitalopram for the treatment of postmenopausal women with major depressive disorder

OBJECTIVE

This study assessed the efficacy, safety, and tolerability of the serotonin-norepinephrine reuptake inhibitor desvenlafaxine and the selective serotonin reuptake inhibitor escitalopram for major depressive disorder (MDD) in postmenopausal women.

METHODS

In this randomized, double-blind study, postmenopausal outpatients (aged 40-70 y) with Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition MDD received flexible-dose desvenlafaxine (100-200 mg/d) or escitalopram (10-20 mg/d) for 8 weeks. Acute-phase responders, that is, women with a 50% or greater reduction from baseline in the 17-item Hamilton Rating Scale for Depression (HAM-D17) total score, were eligible to continue the same double-blind treatment in the 6-month continuation phase. The primary efficacy outcomes were mean change from baseline in HAM-D17 total score (acute phase), analyzed using a mixed-effects model for repeated measures, and the proportion of women who maintained response (continuation phase), analyzed using logistic regression.

RESULTS

Reductions in HAM-D17 total score at acute-phase endpoint were similar for desvenlafaxine- and escitalopram-treated women (-13.6 vs -14.3, respectively; P = 0.24). No significant difference was observed between groups at continuation-phase endpoint in the proportion of women who maintained response (desvenlafaxine, 82%; escitalopram, 80%; P = 0.70). In both phases, desvenlafaxine and escitalopram were generally safe and well tolerated.

CONCLUSIONS

Among postmenopausal outpatients with MDD, there were no significant differences in the efficacy of desvenlafaxine and escitalopram based on primary efficacy analyses. The results do not support the overall hypothesis that the serotonin-norepinephrine reuptake inhibitor desvenlafaxine has an efficacy advantage for the treatment of MDD in postmenopausal women because, in this particular subgroup, desvenlafaxine failed to prove superiority over escitalopram. Safety and tolerability were comparable.

Menstrual cycle-related exacerbation of disease

Exacerbation of common medical and mental health disorders at specific phases of the menstrual cycle is a prevalent phenomenon. Although the precise cause is unclear, studies implicate complex interactions between the immune and neuroendocrine systems. The menstrual cycle also is a trigger for the onset of depressive disorders, including premenstrual dysphoric disorder, a disorder specific to the luteal phase of the menstrual cycle, and depression associated with the transition to menopause. This article discusses common mental health problems exacerbated by the menstrual cycle, with a particular focus on premenstrual dysphoric disorder and perimenopausal depression. Throughout the reproductive lifespan, routine screening and assessment for the presence of common psychiatric disorders are critical for accurate diagnosis and provision of effective treatment. Management options include referral or consultation with a primary care provider or psychiatrist; treatment options for premenstrual dysphoric disorder and perimenopausal depression include pharmacotherapy with antidepressant agents and/or psychotherapy. Hormones may be helpful.

Duloxetine in acute major depression: review of comparisons to placebo and standard antidepressants using dissimilar methods

BACKGROUND

Randomized controlled trials (RCTs) of duloxetine (DLX), an inhibitor of both norepinephrine and serotonin transporters (SNRI), have tested its efficacy in acute major depressive disorder (MDD) versus placebo (PBO) or standard serotonin-reuptake inhibitors (SRIs) and require review, comparing analytical methods.

METHOD

Computerized searching to identify reports of RCTs of DLX in adult, acute MDD patients permitted meta-analytic pooling to estimate overall response and remission rates, to compare mixed-model, repeated measures (MMRM) versus last-observations-carried-forward (LOCF) analytical methods, and to assess relations of DLX dose to efficacy and adverse outcomes.

RESULTS

We identified 17 RCTs involving 22 comparisons (DLX versus PBO [n = 17) and DLX versus an SRI [n = 16]), based on MMRM and LOCF methods that allowed estimates of response (>or=50% improvement of depression scores) or remission (final depression score <or=7). There was a large overall DLX/PBO contrast (LOCF, RR = 1.42 [CI: 1.31-1.53], p < 0.0001, with a success rate of 65% [11/17]), and somewhat larger effects with MMRM in both response (MMRM: RR = 1.48 [95%CI: 1.31-1.66] versus LOCF: RR = 1.41 [CI: 1.28-1.56]; NNT 4.8 versus 6.5) and remission (MMRM: RR = 1.61 [CI: 1.41-1.85] versus LOCF: RR = 1.44 [CI: 1.27-1.63]; NNT = 5.9 versus 8.9). Based on LOCF methods, dropout rates were similar with DLX and PBO (RR = 1.04 [CI: 0.94-1.15]); DLX response was dose-dependent (r = +0.72, p = 0.001), and RCT-dropout rates were inversely related to DLX dose, but possibly artifactually.

LIMITATIONS

RCTs involving DLX are limited, with few direct comparisons to standard antidepressants.

CONCLUSIONS

DLX has good evidence of efficacy in acute, adult MDD, especially at doses of 80-120 mg/day, but remains inadequately tested against standard alternatives. MMRM analyses yielded slightly superior FLX/PBO contrasts than older LOCF methods.

Tailoring treatment of depression for women across the reproductive lifecycle: the importance of pregnancy, vasomotor symptoms, and other estrogen-related events in psychopharmacology

Compared with men, women are at increased risk of depression, especially at several reproductive-related lifecycle points. This may be partially due to changing levels of estrogen, a hormone that can affect levels of neurotransmitters and neural proteins. As estrogen levels vary throughout the lifespan, risk of depression in women also varies, and not all treatments are appropriate or effective at all times. In adolescence, onset of depression may be associated with onset of puberty, but treating underage girls with antidepressants can risk suicidality. In females of childbearing age, mood disturbances associated with menstrual cycles signal a risk for later full-blown major depressive disorder. In depressed pregnant and postpartum women, risks of treatment versus risks of nontreatment are intricate and require case-by-case evaluation. In perimenopause, vasomotor symptoms may be harbingers of oncoming depression and also may signal the presence of dysregulated hormones and neurotransmitters. Relieving vasomotor symptoms may be a necessary dimension of treating depression. In postmenopause, response to selected antidepressants may depend on whether the patient is also taking hormone-replacement therapy. To attain optimal outcomes, modern psychopharmacologists must tailor treatment of depression to a woman's reproductive stage of life.

A Markov cost-utility analysis of escitalopram and duloxetine for the treatment of major depressive disorder

OBJECTIVE

To estimate the costs and quality-adjusted life weeks of duloxetine and escitalopram.

RESEARCH DESIGN

A probabilistic Markov cost-utility analysis with a time horizon of 1 year using data from placebo controlled randomized clinical trials for both products.

METHODS

Efficacy was defined as remission of depressive symptoms and converted to utilities. Side effects were incorporated using rates from clinical trials and converted to utilities to define treatment effectiveness. The effectiveness outcome was quality adjusted life weeks (QALWs). Estimates of effectiveness (efficacy and side effects) used beta distributions and costs used gamma distributions. Using a managed care perspective, medication costs and physician office visits were included in the model, along with costs associated with treatment failure. Antidepressant costs were obtained using average wholesale price minus 20%. Physician visit costs were obtained from the 2006 US Medicare fee schedule for physician services. A Monte Carlo simulation was conducted using 1000 trials with both first- and second-order sampling.

RESULTS

Over 1 year, the estimated mean quality-adjusted life weeks was 41.0 (95% confidence interval [CI]: 40.7-41.3) for escitalopram and 38.2 (95% CI: 37.9-38.4) for duloxetine. The mean annual total medical cost for escitalopram was $907 (95% CI: $894-$919) and $1633 (95% CI: $1614-$1654) for duloxetine. Limitations to this analysis include using separate studies examining the efficacy and adverse events of either escitalopram or duloxetine, assuming the switch, augmentation, and titration rates for duloxetine to be similar to escitalopram, and using utility estimates from published literature for the antidepressant adverse events.

CONCLUSION

This analysis suggests that escitalopram was more effective in terms of QALWs and less costly than duloxetine for treatment of depression.

Effects of total sleep deprivation in major depression: overnight improvement of mood is accompanied by increased pain sensitivity and augmented pain complaints

OBJECTIVE

Major depressive disorder (MDD) is associated with more pain complaints and an altered pain perception. Studies regarding the longitudinal relationship between depressive symptoms and pain processing have rarely been performed and have produced inconsistent results. To clarify how short-term alleviation of depressive mood is linked to changes in pain processing, the effect of sleep deprivation (SD) on pain and somatosensory thresholds, pain complaints, and mood was investigated in MDD patients.

METHODS

Nineteen drug-free inpatients with Diagnostic and Statistical Manual of Mental Disorders, fourth edition, diagnosis of MDD were investigated for 3 weeks. All patients received cognitive-behavioral therapy and were randomized to obtain either additional SD therapy (six nights of total SD, separated by recovery sleep) or no SD therapy (control group). Heat/cold pain thresholds, warmth/cold thresholds, measures of current pain complaints, and mood were assessed the evening before and the morning after SD as well as before and after a normal night sleep in the control group. Long-term changes of depressive symptomatology were assessed by weekly mood ratings.

RESULTS

Both treatment groups improved markedly in mood over the 3-week treatment period. SD regularly induced a moderate but statistically nonsignificant overnight improvement of mood, which was abolished by recovery sleep. Compared with the control condition, SD significantly decreased heat pain thresholds and nearly significantly cold pain thresholds; SD significantly augmented pain complaints the next morning. No such effects were observed for somatosensory thresholds.

CONCLUSIONS

SD induced differential short-term effects on mood and pain, with the patients being less depressed but more pain vulnerable.

Missed symptoms of menopause

OBJECTIVE

This review examines the available data on the efficacy of selective serotonin reuptake inhibitors (SSRIs) and serotonin-noradrenaline reuptake inhibitors (SNRIs) for treating the commonly missed climacteric symptoms of menopause.

DISCUSSION

Although some women may pass through the menopausal transition phase with few or no symptoms, the majority experience one or more symptoms serious enough to be disruptive to their lives. The most common are vasomotor symptoms (VMS; hot flushes and night sweats), but they are not the only climacteric symptoms that can negatively affect quality of life. The 'missed symptoms' of menopause -- symptoms with high prevalence and an impact on quality of life that nonetheless receive less attention than do VMS -- include mood changes, sleep disturbances and somatic complaints. These symptoms are reported by approximately half of menopausal women, with numbers varying by region and ethnic background. As with VMS, the effects of declining oestrogen levels on serotonin/noradrenaline pathways could play a role in their development.

CONCLUSIONS

Results from pilot studies of several SSRIs and SNRIs suggest that they may improve menopausal mood and sleep symptoms, but few studies have demonstrated significant improvement compared with placebo. One SNRI (venlafaxine) improved menopausal mood symptoms and two SSRIs (citalopram and paroxetine) improved sleep, each in a single placebo-controlled trial of women with VMS. Additional placebo-controlled trials are needed to determine whether SSRIs or SNRIs are effective treatment options for women who cannot or choose not to use hormone therapy.

Antidepressant response in the elderly

It is often stated that depressive phenomenology and prognosis differ between elderly and younger depressed patients, in the direction of more severe symptoms and a poorer outcome in elderly individuals. However, studies addressing the topic remain largely inconclusive, and it has been suggested that potential biases connected with age may have confounded previous assessments. In this work we evaluated a sample of 93 elderly depressed individuals (>60 years) and 186 younger patients. All patients were assessed with the 21-item Hamilton Depression Rating Scale at intake and prospectively followed for 6 weeks during treatment with antidepressants. A number of clinical and demographic features were taken into account to investigate depressive phenomenology and outcome in late-life depression. We found that the high likelihood of medical disorders in elderly patients explained the more severe depressive symptomatology observed in this population. However, independently from physical problems, recovery was slightly slower in elderly compared with younger individuals. Finally, patients who developed their first lifetime episode late in life (>60 years) showed a form of symptomatology similar to that in elderly patients with an earlier onset, but they showed a more positive outcome. In conclusion, the present work suggests that depression in old age is similar to depression in other ages, except for a slightly slower response to pharmacotherapy. Minor health problems increase the severity of depression, but they do not interfere crucially with the efficacy of antidepressant treatment. Finally, late-onset depression is associated with a positive outcome.

Preliminary support for gender differences in response to fluoxetine for generalized anxiety disorder

Women have a higher prevalence of generalized anxiety disorder (GAD) than do men, but few studies have assessed gender differences in response to pharmacotherapy. In this study we examined gender as a correlate of response to 6 weeks of open, prospective fluoxetine treatment in 23 men and 22 women with a primary diagnosis of GAD. There was no difference by gender in age or prevalence of mood and anxiety comorbidity; however, GAD onset occurred at a significantly younger age in women compared with men. Despite a lack of difference in baseline severity measures, women had a significantly poorer response to fluoxetine as measured by both the Hamilton Anxiety Rating Scale (HAM-A) and Clinician Global Impression-Severity Scale (CGI-S). In multivariate analyses, there was a significant interaction between age of onset and gender: men with younger age of onset and women with older age of onset exhibited poorer response on the HAM-A. These data, though limited in sample size and by the post hoc nature of our analyses, offer preliminary support that women with GAD, particularly those with a later age of onset, may have a poorer response to the selective serotonin reuptake inhibitor (SSRI) fluoxetine. Larger placebo-controlled trials are needed to more definitively examine gender and treatment response in anxiety disorders.

Mood and neuropsychological changes in women with midlife depression treated with escitalopram

OBJECTIVE

This study assessed mood and neuropsychological function in a population of middle-aged women with major depressive disorder treated with escitalopram.

METHODS

Psychometric data measuring severity of depression were collected from 19 women and neuropsychological data were collected from 17 women aged between 45 and 65 years with a Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, diagnosis of major depression in a study in the Behavioral Neuroendocrinology Program at the Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine. All women were treated with escitalopram in an open-label design. Mean age was 55.94 years and mean number of years of education was 16.36 years. Diagnosis of major depressive disorder was assessed with the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, and mood was evaluated with the 21-item Hamilton Depression Rating Scale (HAM-D) at baseline and at weekly follow-ups for 12 weeks. Cognition was assessed at baseline and 3 months after treatment using a neuropsychological test battery, which included an abbreviated measure of Full Scale Intelligence Quotient, measures of attention and processing speed, verbal and nonverbal memory, executive functioning, and verbal fluency. Self-report data were collected on current menopause status and current hormone therapy use in the postmenopausal women. Paired sample t tests were used to analyze the change in total HAM-D scores and neuropsychological variables.

RESULTS

Statistically significant improvements were found in total HAM-D score, Wechsler Memory Scale III Logical Memory 1st Recall, I, and II scores, Wechsler Memory Scale III Visual Reproduction I scores, and Trail Making Test Part B scores. There was a statistically significant decrease in Controlled Oral Word Association Test FAS scores.

CONCLUSIONS

Treatment of depression with escitalopram in a population of middle-aged women was shown to improve mood and cognitive efficiency in complex attention, short- and long-term recall of contextual information, short-term recall of visual information, and cognitive flexibility; however, it was shown to worsen phonemic fluency.

Prospects for the treatment of depression

Antidepressant drugs represent the principal form of treatment for major depressive disorder. While there are a plethora of medications available for this task, current drugs have many shortcomings. In the face of these deficiencies there is an ongoing search for new agents. The search has been guided, in part, by drug design based on existing agents and their putative mechanism of action. This has been less than fruitful in addressing inadequacies of existing medications as it has not produced compounds which are novel in terms of pharmacological mechanisms. Recent insights from molecular biological approaches hold promise for the discovery of novel compounds, in particular the so-called neurogenesis hypothesis suggests novel therapeutic approaches. Although significantly modified over the years, the monoamine hypothesis of depression and antidepressant drug action still remains an important driving force behind the development of new compounds. Several recently marketed agents and some in early-phase development tend to conform to these existing mechanistic hypotheses. Clearly the place of these agents in the treatment of depression is dependent on issues such as short- and long-term safety and efficacy. Duloxetine has been developed as a dual monoamine re-uptake inhibitor. Agomelatine is a compound with major effects on the circadian system as well as effects on subtypes of the serotonin receptor system. While the mechanism of action of this compound is not certain, recent evidence would suggest that the drug exerts its effects through antagonist actions at serotonin receptors. Compounds based on the hypothalamic pituitary adrenal axis, substance P antagonism and other neuropeptides have potential application for the treatment of depression but require further development before that potential is realized.

Pharmacological Management of Women with Mixed Urinary Incontinence

Mixed urinary incontinence (MUI) is a symptomatic diagnosis. It is defined by the International Continence Society as the complaint of involuntary leakage associated with urgency and also with exertion, effort, sneezing and coughing. A search of medical databases revealed that only a small number of limited studies that assess the prevalence, epidemiology and treatment of MUI have been conducted. Most studies have looked separately at either stress urinary incontinence or urgency urinary incontinence. Thus, management of MUI involves a combination of treatments for both stress and urgency incontinence, but should concentrate initially on the most bothersome and/or predominant symptom. Initial management includes an accurate history and examination, which is supplemented by a bladder diary and quality-of-life questionnaire. Once a preliminary diagnosis is established, first-line therapy includes patient education and lifestyle interventions, such as weight loss. This is supplemented by pelvic floor muscle training and bladder training, which help with both components of MUI. Oral pharmacotherapy often acts synergistically with the previous treatments; however, only very few randomised, placebo-controlled trials have looked at the effects of pharmacotherapy on MUI. The two main classes of drugs are the antimuscarinics, which are effective in urgency incontinence, and the serotonin-norepinephrine re-uptake inhibitors, which are effective in stress incontinence. Combination of these two drug classes is a feasible option but has not been tested in any trials to date. Should these treatments fail, then patients should be referred for cystometry to confirm the diagnosis. Treatment options available following urodynamics include invasive minor and major surgical procedures, which either treat the stress or urgency component of MUI but not both. Surgical procedures carry the risk of infection, haemorrhage and failure.