Reboxetine, the first selective noradrenaline reuptake inhibitor antidepressant: Efficacy and tolerability in 2613 patients S-adenosyl methionine (SAMe) augmentation of serotonin reuptake inhibitors for antidepressant nonresponders with major depressive disorder: a double-blind, randomized clinical trial. Selective Serotonergic (SSRI) Versus Noradrenergic (SNRI) Reuptake Inhibitors with and without Acetylsalicylic Acid in Major Depressive Disorder. The SSRIs drug Fluoxetine, but not the noradrenergic tricyclic drug Desipramine, improves memory performance during acute major depression Differential prediction of first clinical response to serotonergic and noradrenergic antidepressants using the loudness dependence of auditory evoked potentials in patients with major depressive disorder. GENetic and clinical Predictors Of treatment response in Depression: the GenPod randomised trial protocol (S)-(+)-mecamylamine (TC-5214): a neuronal nicotinic receptor modulator enters phase III trials as an adjunct treatment for Major Depressive Disorder (MDD). Selective serotonin reuptake inhibitors for migraine prophylaxis. A randomised, double-blind study in adults with major depressive disorder with an inadequate response to a single course of selective serotonin reuptake inhibitor or serotonin–noradrenaline reuptake inhibitor treatment switched to vortioxetine or agomelatine† World Federation of Societies of Biological Psychiatry (WFSBP) Guidelines for the Pharmacological Treatment of Anxiety, Obsessive-Compulsive and Post-Traumatic Stress Disorders – First Revision Serotonergic and Noradrenergic Modulation of Emotion Processing by Single Dose Antidepressants Cardiac side‐effects of two selective serotonin reuptake inhibitors in middle- aged and elderly depressed patients Is Baseline Agitation a Relative Contraindication for a Selective Serotonin Reuptake Inhibitor: A Comparative Trial of Fluoxetine Versus Imipramine Effects of selective serotonin reuptake and dual serotonergic-noradrenergic reuptake treatments on memory and mental processing speed in patients with major depressive disorder. Treatment of selective serotonin reuptake inhibitor-resistant depression in adolescents: predictors and moderators of treatment response. Different gender response to serotonergic and noradrenergic antidepressants. A comparative study of the efficacy of citalopram and reboxetine. Lack of sexual dysfunction with the selective noradrenaline reuptake inhibitor reboxetine during treatment for major depressive disorder
INTRODUCTION : Reboxetine is the first available selective noradrenaline re-uptake inhibitor ( selective NRI ) . This paper gives an overview of its antidepressant efficacy and tolerability in eight r and omized double-blind , multicentre clinical trials . The clinical profile of reboxetine is also compared with that of the tricyclic antidepressants ( TCAs ) desipramine and imipramine and the selective serotonin re-uptake inhibitor ( SSRI ) fluoxetine . METHODS : Pooled data were analysed from seven short-term ( 4 - 8 weeks ) and one long-term ( up to 1 year ) trials comparing reboxetine with placebo , imipramine , desipramine or fluoxetine . The tolerability of reboxetine was evaluated in 2613 patients with major depression or dysthymia . Data from 1959 patients with major depressive disorder were included to assess drug efficacy . Efficacy was principally assessed using the Hamilton Depression Rating Scale ( HAM-D ) . RESULTS : Reboxetine was more effective than placebo in three of four short-term trials , and it was as effective as fluoxetine , imipramine and desipramine . In long-term treatment , reboxetine was more effective than placebo in preventing relapse ( S 50 % increase in HAM-D ) and recurrence ( HAM-D total score h 10 ) . In a subset of severely depressed patients , reboxetine was as effective as imipramine and significantly more effective than fluoxetine . Reboxetine was as effective as imipramine in the elderly , but better tolerated . The most common adverse events among the 1503 patients ( adults and elderly ) who received reboxetine were dry mouth ( 22 % ) , constipation ( 15 % ) , sweating ( 12 % ) and insomnia ( 11 % ) . Overall , reboxetine was well tolerated , as well as the SSRI fluoxetine and better than the TCAs imipramine and desipramine . CONCLUSIONS : Reboxetine is effective and well tolerated in the short and long-term treatment of depression . It is as well tolerated as fluoxetine and better than imipramine and desipramine . ( Int J Psych Clin Pract 2000 ; 4 : 201 - 208 OBJECTIVE Despite the progressive increase in the number of antidepressants , many patients with major depressive disorder continue to be symptomatic . Clearly , there is an urgent need to develop better tolerated and more effective treatments for this disorder . The use of S-adenosyl methionine ( SAMe ) , a naturally occurring molecule that serves as a methyl donor in human cellular metabolism , as adjunctive treatment for antidepressant nonresponders with major depressive disorder represents one such effort toward novel pharmacotherapy development . METHOD Participants were 73 serotonin reuptake inhibitor ( SRI ) nonresponders with major depressive disorder enrolled in a 6-week , double-blind , r and omized trial of adjunctive oral SAMe ( target dose : 800 mg/twice daily ) . Patients continued to receive their SRI treatment at a stable dose throughout the 6-week trial . The primary outcome measure for the study was the response rates according to the 17-item Hamilton Depression Rating Scale ( HAM-D ) . RESULTS The HAM-D response and remission rates were higher for patients treated with adjunctive SAMe ( 36.1 % and 25.8 % , respectively ) than adjunctive placebo ( 17.6 % versus 11.7 % , respectively ) . The number needed to treat for response and remission was approximately one in six and one in seven , respectively . There was no statistically significant difference in the proportion of SAMe- versus placebo-treated patients who discontinued the trial for any reason ( 20.6 % versus 29.5 % , respectively ) , due to adverse events ( 5.1 % versus 8.8 % , respectively ) , or due to inefficacy ( 5.1 % versus 11.7 % , respectively ) . CONCLUSIONS These preliminary results suggest that SAMe can be an effective , well-tolerated , and safe adjunctive treatment strategy for SRI nonresponders with major depressive disorder and warrant replication BACKGROUND Antidepressant medication efficacy remains a major research challenge . Here , we explored four questions : whether noradrenergic antidepressants are more effective than serotonergic antidepressants ; whether the addition of 100 mg acetylsalicylic acid ( ASA ) changes antidepressant efficacy ; whether the long-term efficacy differs depending on the antidepressant and the addition of ASA ; and whether serum levels of brain-derived neurotrophic factor ( BDNF ) are clinical ly informative . SUBJECTS AND METHODS In a two-year study , forty people with major depressive disorder were r and omly assigned to groups that received an SSRI ( escitalopram ) or an SNRI ( duloxetine ) , each group received concomitant ASA ( 100 mg ) or a placebo . Sociodemographic data were recorded and patients under went regular assessment s with the Hamilton depression scale ( HDS ) and clinical global impression ( CGI ) scale . Serum levels of BDNF were measured four times per year . RESULTS There was no significant difference in efficacy between the two antidepressants or between antidepressant treatment with and without ASA . However , subgroup comparisons revealed that the duloxetine + ASA ( DASA ) subgroup showed a more rapid improvement in HDS score as early as 2 months ( t=-3.114 , p=0.01 ) , in CGI score at 5 months ( t=-2.119 , p=0.05 ) , and a better remission rate ( χ2=6.296 , p 0.012 ) than the escitalopram + placebo ( EP ) subgroup . Serum BDNF before treatment was also higher in the DASA subgroup than in the EP subgroup ( t=3.713 ; p=0.002 ) . CONCLUSION This suggest two hypotheses : either a noradrenergic agent combined with ASA is more effective in treating depression than a serotonergic agent alone , or the level of serum BDNF before treatment is a precursor marker of the response to antidepressants . Further research is needed to test these hypotheses Accumulating evidence suggests that noradrenergic and serotonergic drugs are equally effective in ameliorating the depressive symptoms of major depression . Major depression is associated also with memory impairments , but the comparative effects of the antidepressant drugs on memory are not clear . We previously found that serotonergic neurotransmission is of particular importance for some aspects of episodic memory . We set out to test whether treatment with the selective serotonergic drug Fluoxetine ( Prozac ) would be advantageous in this respect over treatment with the selective noradrenergic tricyclic antidepressant drug Desipramine ( Deprexan ) .  Seventeen patients with major depressive episode , r and omly assigned for treatment with either Fluoxetine ( n = 8) or Desipramine ( n = 9 ) , were assessed for their clinical situation and for memory performance at the beginning of treatment , after 3 weeks , and after 6 weeks of pharmacological treatment . We found that although clinical ly both drugs were equally effective , the improvement of memory performance in the Fluoxetine-treated patients was significantly greater compared with that of the Desipramine-treated patients . The results support the role of serotonin in memory . More studies in larger sample s of patients are required , but it may be that in cases where memory impairment is a major symptom , it would be beneficial to consider serotonergic antidepressant drugs for treatment . Furthermore , in cases where , for various reasons , the treatment of choice is noradrenergic , it may be worthwhile to consider a supplementary serotonergic drug to improve memory deficits OBJECTIVE Predictors of treatment response to serotonergic versus nonserotonergic , e.g. , noradrenergic , antidepressants are of considerable clinical relevance as they could help to reduce the occurrence of patients ' receiving weeks or even months of unsuccessful treatment . Several studies show that the response to selective serotonin reuptake inhibitors can be successfully predicted by using the loudness dependence of auditory evoked potentials ( LDAEP ) , which denotes change in the amplitudes in response to different stimulus intensities and is to date one of the best vali date d indicators of the central serotonergic system . The aim of the current r and omized prospect i ve study was to investigate whether or not LDAEP also allows the differential prediction of treatment response to serotonergic versus noradrenergic antidepressants . METHOD Electrophysiologic recordings were performed on 48 subjects between 1999 and 2001 . After exclusions due to artifacts , the study sample consisted of 35 unmedicated in patients with a DSM-IV or ICD-10 diagnosis of major depressive disorder ( mean + /- SD age = 42.5 + /- 10.8 years ; 13 male , 22 female ; mean + /- SD score of 28.9 + /- 5.7 on the Hamilton Rating Scale for Depression [ HAM-D ] , the primary measure for psychopathology ) . The patients were then treated for 4 weeks with either the selective serotonin reuptake inhibitor citalopram or the noradrenaline reuptake inhibitor reboxetine . RESULTS Analysis of variance ( F = 5.05 , df = 1,31 ; p = .03 ) revealed that responders ( 50 % improvement in HAM-D score ) to the citalopram treatment were characterized by a strong LDAEP at baseline , and responders to reboxetine were characterized by a weak LDAEP at baseline . Non-responders to citalopram or reboxetine showed the inverse LDAEP characteristics , respectively . CONCLUSION This study is one of the first to demonstrate differential prediction of response to different classes of antidepressants . Patients at the beginning of an antidepressant treatment who show an initially strong LDAEP have a greater probability of responding to a serotonin-agonist antidepressant , whereas patients with a weak LDAEP will probably benefit more from a nonserotonergic , e.g. , noradrenergic , antidepressant . If these results were replicated in a larger sample , this simple electroencephalographic method could be more broadly used in clinical practice to support clinicians in replacing the trial and error method with a more targeted and individualized approach to antidepressant treatment Background The most effective pharmacological treatments for depression inhibit the transporters that reuptake serotonin ( Selective Serotonin Reuptake Inhibitors – SSRIs ) and noradrenaline ( Noradrenaline Reuptake Inhibitors – NaRIs ) into the presynaptic terminal . There is evidence to suggest that noradrenaline and serotonin enhancing drugs work through separate mechanisms to produce their clinical antidepressant action . Although most of the current evidence suggests there is little difference in overall efficacy between SSRIs and NaRIs , there are patients who respond to one class of compounds and not another . This suggests that treatment response could be predicted by genetic and /or clinical characteristics . Firstly , this study aims to investigate the influence of a polymorphism ( SLC6A4 ) in the 5HT transporter in altering response to SSRI medication . Secondly , the study will investigate whether those with more severe depression have a better response to NaRIs than SSRIs . Methods / design The GenPod trial is a multi-centre r and omised controlled trial . GPs referred patients aged between 18–74 years presenting with a new episode of depression , who did not have any medical contraindications to antidepressant medication and who had no history of psychosis or alcohol/substance abuse . Patients were interviewed to ascertain their suitability for the study . Eligible participants ( with a primary diagnosis of depression according to ICD10 criteria and a Beck Depression Inventory ( BDI ) score > 14 ) were r and omised to receive one of two antidepressant treatments , either the SSRI Citalopram or the NaRI Reboxetine , stratified according to severity . The final number r and omised to the trial was 601 . Follow-up assessment s took place at 2 , 6 and 12 weeks following r and omisation . Primary outcome was measured at 6 weeks by the BDI . Outcomes will be analysed on an intention-to-treat basis and will use multiple regression models to compare treatments . Discussion The results of the trial will provide information about targeting antidepressant treatment for individual patients ; in turn this may increase prescribing efficacy , thereby speeding recovery and reducing the cost to the NHS . It will also help to underst and the different roles that noradrenaline and serotonin might play in the biology of depression . The trial is expected to report in the autumn of 2008.Trial Registration IS RCT N Major Depressive Disorder ( MDD ) is a common illness that affects > 40 million people worldwide , and antidepressants are one of the top 5 leading classes of pharmaceuticals with annual sales in excess of $ 20 billion ( 1,2 ) . The current st and ard of care focuses on serotonin−norepinephrine reuptake inhibitors ( SNRI ) and selective serotonin reuptake inhibitors ( SSRI ) ; however , patients often respond poorly . In fact , the National Institute of Mental Health conducted a large-scale STAR*D study and found that 63 % of patients did not achieve remission with the SSRI Citalopram ( 1,3−5 ) . Citalopram was originally developed in Lundbeck in the late 1980s and sold as a racemate . Lundbeck , in collaboration with Forest Laboratories , has recently released an up date d version called Escitalopram ( also known as Lexapro ) , which is the single (S)-enantiomer of the racemic Citalopram , which provided new patent life . In 2009 , Lexapro garnered ∼$2.7 billion in sales in the US ( Figure ​(Figure1)1 ) ( 2 ) . Figure 1 Structures of Citalopram , Escitalopram , and TC-5214 . An alternative hypothesis for depression emerged over 30 years ago and suggests that a cholinergic imbalance ( hypercholinergic tone ) is a major factor in depression , and both clinical and pre clinical studies have implicated neuronal nicotinic cholinergic receptors ( NNRs ) rather than muscarinic receptors ( 5 ) . On the basis of these data , AstraZeneca and Targacept have explored the role of NNR antagonism in depressive disorders and recently announced the initiation of a phase III trial of TC-5214 , (S)-(+)-mecamylamine , as an adjunct therapy with Citalopram . TC-5214 is a low molecular weight ( 167.3 as free base , 203.8 as the HCl salt ) , basic ( pKa = 11.5 ) compound , freely soluble in water . While TC-5214 displays modest selectivity among the NNRs , its antidepressive properties are presumed to be the result of inhibition of the α4β2 NNRs . Pre clinical ly , TC-5214 demonstrated robust efficacy in rodent models of depression ( forced swim and behavioral despair ) and anxiety ( social interaction and light/dark chamber ) . The (S)-enantiomer showed a superior preclincial safety profile compared to that of either the racemic compound or the (R)-enantiomer . Furthermore , TC-5214 was well tolerated in both acute and chronic toxicity tests , displayed no mutagenic potential , and possessed pharmacokinetic properties suitable for development ( 3−5 ) . In 2009 , Targacept conducted a double blind , placebo controlled phase IIb trial in MMD patients with TC-5214  , as an adjunct treatment with Citalopram demonstrated superiority to placebo in both primary and secondary outcome measures ( 3−5 ) . This positive outcome led to a license agreement in December of 2009 with AstraZeneca for the global development and commercialization of TC-5214 . On June 23 , 2010 , AstraZeneca and Targacept announced the enrollment of the first patients in the phase III trial of TC-4214 . Coined the Renaissance Program , the trial will include two fixed dose and two flexible dose phase III studies of TC-5214 as an adjunct treatment for patients with poor response to st and ard SSRI or SNRI therapy . Each fixed dose and flexible dose phase III study will employ an initial open label phase wherein patients diagnosed with MDD receive one of seven marketed SSRIs or SNRIs for eight weeks to assess therapeutic response . Patients that respond poorly will then be r and omized into a double blind , placebo controlled second phase to receive a fixed or a flexible dose of TC-5214 or placebo , twice daily , while continuing the SSRI or SNRI therapy . A change from double blind baseline for TC-5214 on the Montgomery−Asberg Depression Rating Scale ( MADRS ) as compared to placebo is the primary outcome measure . The program will also include a double blind , placebo controlled study for long-term safety . The companies plan completion of the trial in time to file an IND with the FDA in late 2012 ( 3−5 ) . MMD is the leading cause of disability in the US for people 15−44 , and the burden for MDD in the US in 2000 was in excess of $ 83 billion ( 6 ) . When broken down , the workplace burden for lost time is ∼62 % , treatment costs account for ∼31 % , and suicide related costs average 7 % ( 6 ) . For those suffering from MDD with poor response to SSRIs and SNRIs , the phase III data is anxiously awaited The objective of this study was to assess the efficacy of sertraline in migraine prophylaxis . Other selective serotonin reuptake inhibitors have been studied for migraine prophylaxis , but this is the first report with sertraline .  Twenty-seven subjects were enrolled and baseline assessment of migraine frequency and severity were measured over a 4-week period . Subjects were then r and omized to receive placebo or sertraline in a double-blind fashion with headache frequency and severity measured over an 8-week period . Subjects completed a daily diary reporting the occurrence , severity , and degree of impairment associated with migraine . The headache index , a composite measure of migraine frequency and severity , scores did not significantly improve between assessment s at baseline ( 20.8 + /- 14.88 ) , 8 weeks ( 17.6 + /- 12.27 ) , and 12 weeks ( 16.7 + /- 6.38 ) in the treatment group ( n=6 ) ( P=0.956 ) . This finding is compared to other studies with the serotonin selective reuptake inhibitors , fluoxetine , fluvoxamine , and paroxetine . The authors believe that the selective serotonin reuptake inhibitors are not as effective as conventional migraine prophylaxis medications such as beta-blockers , tricyclic antidepressants , or divalproex sodium , but that in patients with comorbid depression who have failed conventional therapy selective serotonin reuptake inhibitors may be effective Objective This r and omised , double-blind , 12-week study compared efficacy and tolerability of flexible-dose treatment with vortioxetine ( 10–20 mg/day ) versus agomelatine ( 25–50 mg/day ) in major depressive disorder patients with inadequate response to selective serotonin reuptake inhibitor (SSRI)/serotonin – noradrenaline reuptake inhibitor ( SNRI ) monotherapy . Methods Patients were switched directly from SSRI/SNRI to vortioxetine or agomelatine . Primary endpoint was change from baseline to week 8 in the Montgomery – Åsberg Depression Rating Scale ( MADRS ) total score analysed by mixed model for repeated measurements , using a noninferiority test followed by a superiority test . Secondary endpoints included response and remission rates , anxiety symptoms ( Hamilton Anxiety Rating Scale ) , Clinical Global Impression , overall functioning ( Sheehan Disability Scale ) , health-related quality of life ( EuroQol 5 Dimensions ) , productivity ( work limitation question naire ) and family functioning ( Depression and Family Functioning Scale ) . Results Primary endpoint noninferiority was established and vortioxetine ( n = 252 ) was superior to agomelatine ( n = 241 ) by 2.2 MADRS points ( p < 0.01 ) . Vortioxetine was also significantly superior in response and remission rates at weeks 8 and 12 ; MADRS , Hamilton Anxiety Rating Scale , Clinical Global Impression , Sheehan Disability Scale and EuroQol 5 Dimensions scores at week 4 onwards ; work limitation question naire at week 8 and Depression and Family Functioning Scale at weeks 8 and 12 . Fewer patients withdrew because of adverse events with vortioxetine ( 5.9 % vs 9.5 % ) . Adverse events ( incidence ≥5 % ) were nausea , headache , dizziness and somnolence . Conclusions Vortioxetine was noninferior and significantly superior to agomelatine in major depressive disorder patients with previous inadequate response to a single course of SSRI/SNRI monotherapy . Vortioxetine was safe and well tolerated In this report , which is an up date of a guideline published in 2002 ( B and elow et al. 2002 , World J Biol Psychiatry 3:171 ) , recommendations for the pharmacological treatment of anxiety disorder , obsessive-compulsive disorder ( OCD ) and post-traumatic stress disorder ( PTSD ) are presented . Since the publication of the first version of this guideline , a substantial number of new r and omized controlled studies of anxiolytics have been published . In particular , more relapse prevention studies are now available that show sustained efficacy of anxiolytic drugs . The recommendations , developed by the World Federation of Societies of Biological Psychiatry ( WFSBP ) Task Force for the Pharmacological Treatment of Anxiety , Obsessive-Compulsive and Post-traumatic Stress Disorders , a consensus panel of 30 international experts , are now based on 510 published r and omized , placebo- or comparator-controlled clinical studies ( RCTs ) and 130 open studies and case reports . First-line treatments for these disorders are selective serotonin reuptake inhibitors ( SSRIs ) , serotonin-noradrenaline reuptake inhibitors ( SNRIs ) and the calcium channel modulator pregabalin . Tricyclic antidepressants ( TCAs ) are equally effective for some disorders , but many are less well tolerated than the SSRIs/SNRIs . In treatment-resistant cases , benzodiazepines may be used when the patient does not have a history of substance abuse disorders . Potential treatment options for patients unresponsive to st and ard treatments are described in this overview . Although these guidelines focus on medications , non-pharmacological were also considered . Cognitive behavioural therapy ( CBT ) and other variants of behaviour therapy have been sufficiently investigated in controlled studies in patients with anxiety disorders , OCD , and PTSD to support them being recommended either alone or in combination with the above medicines Serotonergic and noradrenergic pathways are the main targets of antidepressants . Their differential effects on emotion processing-related brain activation are , however , to be further characterized . We aim ed at elucidating the neural sites of action of an acute differential serotonergic and noradrenergic influence on an emotion-processing task , which was earlier shown to be associated with depressiveness . In a single-blind pseudo-r and omized crossover study , 21 healthy subjects ( 16 subjects finally included in the analysis ) participated to ingest a single dose at three time points of either 40 mg citalopram , a selective serotonin-reuptake inhibitor , 8 mg reboxetine , a selective noradrenaline-reuptake inhibitor , or placebo 2–3 h before functional magnetic resonance imaging ( fMRI ) . During fMRI , subjects performed a task comprising the anticipation and perception of pictures of either ‘ known ’ ( positive , negative , neutral ) or ‘ unknown ’ valence ( r and omly 50 % positive or negative ) . In direct comparison with citalopram and with placebo , reboxetine increased brain activity in the medial thalamus . Citalopram modulated certain prefrontal and insular areas more prominently . Other frontal and parieto-occipital areas were modulated by both drugs . In conclusion , the functional network involved in emotional information processing could be modulated by the acute application of selective noradrenergic and serotonergic drugs revealing a noradrenergic effect in thalamic and frontal areas , and a prefrontal and insular focus of serotonergic modulation . These findings could have implication s for future selection criteria concerning personalized antidepressant medication in depression Selective serotonin reuptake inhibitors ( SSRIs ) are the ‘ new ’ drugs of first choice for the treatment of depression in the older patient . Systematic studies on the effects of SSRIs on cardiac function are scarce , despite the high prevalence of cardiac disorders in the older depressed patient . This is a study which systematic ally assesed cardiac function by echo-cardiography in middle-aged and elderly depressed patients treated with SSRI . In a double-blind r and omized trial , 20 patients were assigned to receive fluvoxamine 20 mg/day or fluoxetine 100mg/day for 6 weeks . Cardiac function was assessed by left ventricle ejection fraction , aortic flow integral and early or passive/late or active mitral inflow , and electrocardiography . Neither SSRI significantly affected cardiac function . Compared with patients without a history of myocardial infa rct ion and /or hypertension , patients with such a history showed a significant improvement in left ventricular ejection fraction . Despite our small study sample , these data indicate that both fluoxetine and fluvoxamine do not affect cardiac function adversely A common presentation for major depression includes psychomotor agitation . However , this subtype has been the infrequent subject of controlled investigation during depression trials . Yet , the subcategorization of agitated depression has historically been associated with the belief that older , sedating compounds have a superior risk : benefit profile . In the 8-week , double-blind , r and omized , parallel trial , 124 subjects with Research Diagnostic Criteria -compatible agitated depression were r and omized to either imipramine ( IMI ) or fluoxetine ( FLU ) . Both compounds proved to be similarly effective as measured by change in HAM-D17 , HAM-D17 response , and HAM-D17 remission rates . Similar comparability was seen in secondary measures of agitation , anxiety , suicidality , and global impressions . However , of note , a statistically significant difference in early discontinuations because of intolerable adverse events emerged . Whereas 43.5 % of IMI subjects discontinued early , only 9.7 % of FLU subjects ( p < 0.001 ) did . Significantly more central nervous system events characterized the IMI than the FLU subgroup ( IMI , 24.2 % , vs. FLU , 6.5 % ; p = 0.006 ) . In conclusion , among subjects with major depression , subtype agitated , the risk : benefit profile favored FLU over IMI . This was driven by the superior tolerance of FLU . No evidence emerged in support of the clinical hypothesis that a “ sedating ” agent is the treatment of choice for this group . The results are important when striving to maximize compliance with pharmacotherapy in order to minimize recidivism and associated psychological and economic morbidity . ( J Clin Psychopharmacol 1994;14:385–391 Patients with major depressive disorder ( MDD ) usually suffer from altered cognitive functions of episodic memory , working memory , mental processing speed and motor response . Diverse studies suggest that different antidepressant agents may improve cognitive functions in patients with MDD . The aim of this work is to study the effects of serotonergic reuptake inhibitors ( SSRIs ) and serotonergic-noradrenergic reuptake inhibitors ( SNRIs ) treatments to improve the performance on memory tasks and mental processing speed in MDD . Seventy-three subjects meeting criteria for major depressive disorder were assessed with the Hamilton depression rating scale and a neuropsychological battery . The subjects were medicated with escitalopram ( n=36 ) or duloxetine ( n=37 ) for 24 weeks . At the end of the trial , the subjects were assessed again with the same neuropsychological battery used prior to the treatment . Both treatments improved importantly the episodic memory and to a lesser extent , working memory , mental processing speed and motor performance . Our results suggest that cognition is partially independent from improvement in clinical symptoms . Both groups achieved remission rates in the HAM-D-17 after 24 weeks of treatment , but SNRI was superior to SSRI  at improving episodic and working memory . Our work indicates that the superiority of SNRI over the SSRI  at episodic memory improvement is clinical ly relevant OBJECTIVE To advance knowledge regarding strategies for treating selective serotonin reuptake inhibitor (SSRI)-resistant depression in adolescents , we conducted a r and omized controlled trial evaluating alternative treatment strategies . In primary analyses , cognitive-behavioral therapy ( CBT ) combined with medication change was associated with higher rates of positive response to short-term ( 12-week ) treatment than medication alone . This study examines predictors and moderators of treatment response , with the goal of informing efforts to match youths to optimal treatment strategies . METHOD Youths who had not improved during an adequate SSRI trial ( N = 334 ) were r and omized to an alternative SSRI , an alternative SSRI plus CBT , venlafaxine , or venlafaxine plus CBT . Analyses examined predictors and moderators of treatment response . RESULTS Less severe depression , less family conflict , and absence of nonsuicidal self-injurious behavior predicted better treatment response status . Significant moderators of response to CBT + medication ( combined ) treatment were number of comorbid disorders and abuse history ; hopelessness was marginally significant . The CBT/combined treatment superiority over medication alone was more evident among youths who had more comorbid disorders ( particularly attention-deficit/hyperactivity disorder and anxiety disorders ) , no abuse history , and lower hopelessness . Further analyses revealed a stronger effect of combined CBT + medication treatment among youths who were older and white and had no nonsuicidal self-injurious behavior and longer pre study pharmacotherapy . CONCLUSIONS Combined treatment with CBT and antidepressant medication may be more advantageous for adolescents whose depression is comorbid with other disorders . Given the additional costs of adding CBT to medication , consideration of moderators in clinical decision making can contribute to a more personalized and effective approach to treatment BACKGROUND It is well established that depressive disorders are more prevalent in women ; however gender differences in the pharmacological response to antidepressants are not a consistent finding in all reports . It is considered that this discrepancy can be explained by the fact that in most clinical trials drug use for comparative purpose s is not completely different . In this study gender differences in antidepressant response with citalopram ( CTP ) , a selective serotonin reuptake inhibitor and reboxetine ( RBX ) , a selective noradrenaline reuptake inhibitor were evaluated in a group of young men and premenopausal women . METHOD Eighty-six depressed patients 18 to 40 years old participated in an 8-week double-blind clinical trial . Subjects were divided in four groups according to sex and treatment assignation : females treated with CTP ( n = 25 ) or RBX ( n = 23 ) , and males treated with CTP ( n = 19 ) or RBX ( n = 19 ) . Response was determined using HDRS and BDI . RESULTS ANOVA analysis considering change in HDRS scores from baseline to last evaluation found a significant interaction between gender and type of treatment . Females treated with CTP showed a significantly greater response than females treated with RBX , while in men no differences were observed for both drugs . LIMITATIONS Replication using larger sample size and longer treatment periods is required . CONCLUSIONS These results support previous findings which show that premenopausal women respond better than men to serotonergic antidepressants . They also support that a plausible interaction between gonadal hormones and serotonin may explain gender differences in antidepressant response & NA ; Sexual side‐effects due to antidepressant treatment are an important consideration when selecting a treatment regimen and can influence patient compliance . Sexual function during treatment with the selective noradrenaline reuptake inhibitor reboxetine , the selective serotonin reuptake inhibitor ( SSRI ) fluoxetine and placebo has been assessed in a multicentre , r and omized , 8‐week , double‐blind study of 450 patients diagnosed with major depressive disorder .  Sexual function was measured by the Rush Sexual Inventory completed by male and female patients and administered at baseline , week 4 and week 8 . The results indicate that reboxetine was similar to placebo and superior to fluoxetine in its effect on overall sexual function . There was a greater degree of sexual satisfaction in the reboxetine group compared to fluoxetine ( P = 0.02 ) . The percentage of female patients able to achieve orgasm increased during the study period for women who received reboxetine and placebo , but decreased for those who received fluoxetine . These results suggest that reboxetine may be of particular benefit for patients at risk for sexual dysfunction with SSRIs
Evidence from meta- analysis of r and omised controlled trials ( RCTs ) and r and omised pragmatic trials was found in support of greater efficacy of the serotonin noradrenaline reuptake inhibitors ( SNRIs ) , venlafaxine and duloxetine , in moderate to severe depression compared to SSRIs but no evidence was found for superiority of milnacipran .
There is sufficient current evidence that demonstrates an increase in efficacy , when noradrenaline reuptake is added to serotonin ( 5-HT ) reuptake , to suggest that patients with severe depression or those who have failed to reach remission with a SSRI may benefit from treatment with a SNRI .
Selective serotonin reuptake inhibitors ( SSRIs ) are recommended as first-line pharmacological treatment for depression and are the most commonly prescribed class of antidepressants .
However , there is substantial evidence that noradrenaline has a role in the pathogenesis and treatment of depression .
This review aims to examine the evidence of including noradrenaline reuptake inhibition with serotonin reuptake inhibition with respect to increasing efficacy in the treatment of depression .