Switching to another SSRI or to venlafaxine with or without cognitive behavioral therapy for adolescents with SSRI-resistant depression: the TORDIA randomized controlled trial. Nine-month predictors and outcomes of SSRI antidepressant continuation in primary care. Citalopram versus desipramine in treatment resistant depression: Effect of continuation or switching strategies. A randomized open study 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† Antidepressant Exposure as a Predictor of Clinical Outcomes in the Treatment of Resistant Depression in Adolescents (TORDIA) Study Response to an open trial of a second SSRI in major depression. Bupropion-SR, sertraline, or venlafaxine-XR after failure of SSRIs for depression. Efficacy and safety of mirtazapine in major depressive disorder patients after SSRI treatment failure: an open-label trial. Mirtazapine substitution in SSRI-induced sexual dysfunction. Switching to bupropion in fluoxetine-resistant major depressive disorder. Impact of treatments for depression on comorbid anxiety, attentional, and behavioral symptoms in adolescents with selective serotonin reuptake inhibitor-resistant depression. Treatments for Poststroke Motor Deficits and Mood Disorders: A Systematic Review for the 2019 U.S. Department of Veterans Affairs and U.S. Department of Defense Guidelines for Stroke Rehabilitation Further evidence of a combined effect of SERTPR and TPH on SSRIs response in mood disorders Treatment of selective serotonin reuptake inhibitor-resistant depression in adolescents: predictors and moderators of treatment response. Cardiac side‐effects of two selective serotonin reuptake inhibitors in middle- aged and elderly depressed patients Efficacy of venlafaxine in patients with major depressive disorder who have unsustained or no response to selective serotonin reuptake inhibitors: an open-label, uncontrolled study. The treatment of SSRI-resistant depression in adolescents (TORDIA): in search of the best next step. Ziprasidone augmentation of selective serotonin reuptake inhibitors (SSRIs) for SSRI-resistant major depressive disorder. Male Sexual Side Effects Associated with Antidepressants: A Descriptive Clinical Study of 32 Patients Effect of buspirone on sexual dysfunction in depressed patients treated with selective serotonin reuptake inhibitors. A Review of Vilazodone, Serotonin, and Major Depressive Disorder 5-HTTLPR modulates antidepressant efficacy in depressed women Comparison of moclobemide with selective serotonin reuptake inhibitors (SSRIs) on sexual function in depressed adults
CONTEXT Only about 60 % of adolescents with depression will show an adequate clinical response to an initial treatment trial with a selective serotonin reuptake inhibitor ( SSRI ) . There are no data to guide clinicians on subsequent treatment strategy . OBJECTIVE To evaluate the relative efficacy of 4 treatment strategies in adolescents who continued to have depression despite adequate initial treatment with an SSRI .  DESIGN , SETTING , AND PARTICIPANTS R and omized controlled trial of a clinical sample of 334 patients aged 12 to 18 years with a primary diagnosis of major depressive disorder that had not responded to a 2-month initial treatment with an SSRI , conducted at 6 US academic and community clinics from 2000 - 2006 . INTERVENTIONS Twelve weeks of : ( 1 ) switch to a second , different SSRI ( paroxetine , citalopram , or fluoxetine , 20 - 40 mg ) ; ( 2 ) switch to a different SSRI plus cognitive behavioral therapy ; ( 3 ) switch to venlafaxine ( 150 - 225 mg ) ; or ( 4 ) switch to venlafaxine plus cognitive behavioral therapy . MAIN OUTCOME MEASURES Clinical Global Impressions-Improvement score of 2 or less ( much or very much improved ) and a decrease of at least 50 % in the Children 's Depression Rating Scale-Revised ( CDRS-R ) ; and change in CDRS-R over time . RESULTS Cognitive behavioral therapy plus a switch to either medication regimen showed a higher response rate ( 54.8 % ; 95 % confidence interval [ CI ] , 47%-62 % ) than a medication switch alone ( 40.5 % ; 95 % CI , 33%-48 % ; P = .009 ) , but there was no difference in response rate between venlafaxine and a second SSRI ( 48.2 % ; 95 % CI , 41%-56 % vs 47.0 % ; 95 % CI , 40%-55 % ; P = .83 ) . There were no differential treatment effects on change in the CDRS-R , self-rated depressive symptoms , suicidal ideation , or on the rate of harm-related or any other adverse events . There was a greater increase in diastolic blood pressure and pulse and more frequent occurrence of skin problems during venlafaxine than SSRI treatment . CONCLUSIONS For adolescents with depression not responding to an adequate initial treatment with an SSRI , the combination of cognitive behavioral therapy and a switch to another antidepressant result ed in a higher rate of clinical response than did a medication switch alone . However , a switch to another SSRI was just as efficacious as a switch to venlafaxine and result ed in fewer adverse effects . TRIAL REGISTRATION clinical trials.gov Identifier : NCT00018902 BACKGROUND This study aim ed to identify the predictors and outcomes of SSRI antidepressant continuation , discontinuation and switching over a 9-month period of naturalistic observation . METHODS Primary care patients ( n=573 ) with physician-diagnosed depression from 37 practice s were r and omized to an open-label trial of one of three selective serotonin reuptake inhibitors ( SSRIs ) managed in their primary care setting .  Psychiatric characteristics and treatment course were assessed at baseline and at 1 , 3 , 6 and 9 months after medication initiation . RESULTS Nineteen percent of patients switched SSRIs , which occurred significantly sooner than discontinuation ( median : 41 vs.100 days ) . Time to discontinuation was primarily explained by baseline patient skepticism about taking an antidepressant ( 62 % increase in discontinuation risk ) . In contrast , time to switch was associated with greater impairment at baseline and lesser improvement in impairment during the first month on medication . Patients who discontinued were significantly less likely to be depressed 9 months after starting medication than those who either continued or switched medication , and were less symptomatic and impaired than patients who switched . CONCLUSIONS Baseline impairment may increase the risk for SSRI antidepressant switching . Additionally , patient skepticism about antidepressants predicts early SSRI discontinuation and may predict rapid recovery . Intent-to-treat analyses in nonr and omized clinical trials may paradoxically inflate antidepressant effect sizes Abstract Objectives . Evidence in favour of switching between selective serotonin reuptake inhibitor ( SSRI ) and tricyclic ( TCA ) antidepressants in treatment resistant depression has been tested in a few studies only , consequently a prospect i ve study was undertaken to evaluate the impact of switching strategies . Methods . One hundred eighty-nine patients who failed to respond to a previous antidepressant were r and omised to four arms : firstly they received citalopram or desipramine for a 4-week period ; secondly , those who failed to respond were treated for a further 4-week period with the same antidepressant ( citalopram-citalopram and desipramine-desipramine arms ) or switched to the alternate one ( citalopram-desipramine and desipramine-citalopram arms ) . Results . There was no difference in the first 4-week phase between patients receiving citalopram versus desipramine in Hamilton Rating Scale for Depression ( HRSD ) , Montgomery – Asberg Depression Rating Scale ( MADRS ) , and Clinical Global Impression ( CGI ) scores . In the second 4-week phase remitter rates were higher among non-switched patients ( P = 0.04 ) . Moreover , considering HRSD and MADRS , switched patients reported significantly higher scores ( P ≤ 0.02 for both scales at each time-point ) . Conclusions . This study supports the thesis that switching from an SSRI to a TCA ( and vice versa ) in non-responders to a 4-week trial of an SSRI/TCA is not associated with improved response . The result goes in the opposite direction to that predicted by current guidelines 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 This paper examines the relationship between plasma concentration of antidepressant and both clinical response and adverse effects in treatment-resistant depressed adolescents . Adolescents ( n = 334 ) with major depression who had not responded to a selective serotonin reuptake inhibitor ( SSRI )  were r and omized to 1 of 4 treatments : switch to another SSRI ( fluoxetine , citalopram , or paroxetine ) , switch to venlafaxine , switch to SSRI plus cognitive behavior therapy , or switch to venlafaxine plus cognitive behavior therapy . Adolescents who did not improve by 6 weeks had their dose increased . Plasma concentrations of medication and metabolites were measured at 6 weeks in 244 participants and at 12 weeks in 204 participants . Adolescents treated with citalopram whose plasma concentration was equal to or greater than the geometric mean ( GM ) showed a higher response rate compared to those with less than the GM , with parallel but nonsignificant findings for fluoxetine . A dose increase of citalopram or fluoxetine at week 6 was most likely to result in response when it led to a change in concentration from less than the GM at 6 weeks to the GM or greater at week 12 . Plasma levels of paroxetine , venlafaxine , or O-desmethylvenlafaxine were not related to clinical response . Exposure was associated with more cardiovascular and dermatologic side effects in those receiving venlafaxine . Antidepressant concentration may be useful in optimizing treatment for depressed adolescents receiving fluoxetine or citalopram BACKGROUND We evaluated the efficacy of a second serotonin selective reuptake inhibitor ( SSRI ) in patients who had failed to respond to the first SSRI used . METHOD Fifty-five patients with major depression who had failed one of the SSRIs for their current depressive episode were included . After failing a trial of one SSRI , they received a second SSRI in an open clinical trial . RESULTS On the basis of the Clinical Global Impression-Improvement scale , 28 of 55 patients had a marked or complete antidepressant response . CONCLUSION These data provide preliminary clinical evidence that substituting a second SRI may be a useful clinical alternative in depressed patients who fail to respond to an adequate trial of an SSRI BACKGROUND After unsuccessful treatment for depression with a selective serotonin-reuptake inhibitor ( SSRI ) , it is not known whether switching to one antidepressant is more effective than switching to another . METHODS We r and omly assigned 727 adult out patients with a nonpsychotic major depressive disorder who had no remission of symptoms or could not tolerate the SSRI citalopram  to receive one of the following drugs for up to 14 weeks : sustained-release bupropion ( 239 patients ) at a maximal daily dose of 400 mg , sertraline ( 238 patients ) at a maximal daily dose of 200 mg , or extended-release venlafaxine ( 250 patients ) at a maximal daily dose of 375 mg . The study was conducted in 18 primary and 23 psychiatric care setting s. The primary outcome was symptom remission , defined by a total score of 7 or less on the 17-item Hamilton Rating Scale for Depression ( HRSD-17 ) at the end of the study . Scores on the Quick Inventory of Depressive Symptomatology - Self Report ( QIDS-SR-16 ) , obtained at treatment visits , determined secondary outcomes , including remission ( a score of 5 or less at exit ) and response ( a reduction of 50 percent or more on baseline scores ) . RESULTS Remission rates as assessed by the HRSD-17 and the QIDS-SR-16 , respectively , were 21.3 percent and 25.5 percent for sustained-release bupropion , 17.6 percent and 26.6 percent for sertraline , and 24.8 percent and 25.0 percent for extended-release venlafaxine . QIDS-SR-16 response rates were 26.1 percent for sustained-release bupropion , 26.7 percent for sertraline , and 28.2 percent for extended-release venlafaxine . These treatments did not differ significantly with respect to outcomes , tolerability , or adverse events . CONCLUSIONS After unsuccessful treatment with an SSRI , approximately one in four patients had a remission of symptoms after switching to another antidepressant . Any one of the medications in the study provided a reasonable second-step choice for patients with depression . ( Clinical Trials.gov number , NCT00021528 . ) OBJECTIVE To evaluate the efficacy and safety of mirtazapine in depressed out patients who have shown nonresponse or intolerance to selective serotonin reuptake inhibitor ( SSRI ) therapy . METHOD In this open-label , 8-week study , the efficacy and safety of mirtazapine among 103 out patients with DSM-IV major depressive disorder who had failed previous therapy with an SSRI ( fluoxetine , paroxetine , or sertraline )  were evaluated . The primary efficacy measure was the 17-item Hamilton Rating Scale for Depression ( HAM-D-17 ) , and safety assessment s included reported adverse events , routine laboratory assessment s , physical examinations , and assessment s of vital signs . A 4-day washout period followed by mirtazapine treatment was compared with an immediate switch from the SSRI to mirtazapine . RESULTS Based on mean HAM-D-17 scores at endpoint and response rates of 48 % based on the criterion of > or = 50 % reduction in HAM-D-17 score , mirtazapine was found to be an effective treatment for a substantial proportion of patients for whom an SSRI was ineffective and /or poorly tolerated . Mirtazapine was well tolerated , with sedation and appetite increase/weight gain the most commonly reported adverse events . In addition , no difference in efficacy , safety , or tolerability was observed for patients undergoing an immediate switch from an SSRI ( after having been tapered to the minimal effective dose ) to mirtazapine , compared with those undergoing the imposition of a 4-day drug-free washout . CONCLUSION These results suggest that an immediate switch to mirtazapine may be a valid therapeutic option among patients who can not tolerate or do not respond to SSRIs BACKGROUND Sexual side effects are a common and bothersome reaction to selective serotonin reuptake inhibitors ( SSRIs ) , frequently leading to cessation of treatment . Mirtazapine , an alpha2-adrenoceptor and serotonin-2/3 receptor antagonist , appears to cause few sexual problems . METHOD Nineteen patients ( 12 women and 7 men ) , with SSRI-induced sexual dysfunction who were in remission from major depressive disorder ( total Hamilton Rating Scale for Depression [ HAM-D ] score < or = 10 ) , were switched to open-label mirtazapine for up to 6 weeks . Mirtazapine was titrated from 7.5 mg to 45 mg daily , as tolerated . Sexual functioning was measured weekly with the Arizona Sexual Experiences Scale ( ASEX ) , and depression was measured weekly with the HAM-D. RESULTS Eleven patients ( 58 % ) had a return of normal sexual functioning ( mean + /- SD ASEX score = 12+/-3 ) , and another 2 ( 11 % ) reported significant improvement in sexual functioning ( mean ASEX score reduced from 24+/-1 to 20+/-0 ) . All nineteen patients maintained their antidepressant response ( HAM-D score after 6 weeks of mirtazapine = 6+/-3 ) . The most commonly reported side effects ( using moderate/severe rating on a symptom checklist ) were initial sedation ( N = 3 ) , irritability ( N = 6 ) , and muscle soreness and stiffness ( N = 3 ) . Weight gain of 10 to 20 lb ( 4.5 - 9 kg ) was seen in 3 patients ( 2 women and 1 man ) . CONCLUSION Mirtazapine is an effective antidepressant for many patients experiencing SSRI-induced sexual dysfunction Up to 50 % of patients with major depressive disorder ( MDD ) fail to respond to an antidepressant trial , with most taking a selective serotonin reuptake inhibitor ( SSRI ) as an initial treatment . Switching to bupropion , for depressed patients not responding to SSRIs , is a popular strategy among clinicians . This study assesses the efficacy of bupropion SR in the management of MDD resistant to a prospect i ve trial of fluoxetine . Twenty-nine patients with MDD refractory to an 8- to 12-week open-trial of fluoxetine  were enrolled in an 8-week open-trial of bupropion SR . Both a completer analysis ( n = 20 ) and a modified intent-to-treat analysis ( n = 26 ) were performed to evaluate  bupropion SR response rates . Using a completer analysis , seven patients ( 35.0 % ) were classified as responders , five ( 25.0 % ) partial responders , and eight ( 40.0 % ) nonresponders . A modified intent to treat analysis result ed in nine ( 34.6 % ) patients classified as responders , eight ( 30.8 % ) partial responders , and nine ( 34.6 % ) nonresponders . The overall proportion of remitters was 6/20 ( 30.0 % ) using a completer analysis and 6/26 ( 23.1 % ) using an MITT analysis . Approximately 60 % of patients with MDD resistant to a prospect i ve trial of fluoxetine experienced a full or partial response to bupropion SR . Bupropion SR should be considered as a potential treatment for patients who remain depressed despite treatment with OBJECTIVE To assess the relative efficacy of antidepressant medication , alone and in combination with cognitive behavioral therapy ( CBT ) , on comorbid symptoms of anxiety , attention , and disruptive behavior disorders in participants in the Treatment of Resistant Depression in Adolescents ( TORDIA ) trial . METHOD Adolescents with selective serotonin reuptake inhibitor (SSRI)-resistant depression ( N = 334 ) were r and omly assigned to a medication switch alone ( to another SSRI or to venlafaxine ) or to a medication switch plus CBT .  Anxiety , attention-deficit/hyperactivity disorder ( ADHD ) , and disruptive behavior disorder ( DBD ) symptoms were assessed by psychiatric interview and self-report at regular intervals between baseline and 24 weeks . The differential effects of medication and of CBT , and the impact of remission on the course of comorbid symptoms and diagnoses , were assessed using generalized linear mixed models . RESULTS Remission was associated with a greater reduction in scalar measures of anxiety , ADHD , and DBDs , and a greater decrease in the rate of diagnosed anxiety disorders . The correlations between the changes in symptoms of depression on the CDRS-R and anxiety , ADHD , and oppositional symptoms were modest , ranging from r = 0.12 to r = 0.28 . There were no significant differential treatment effects on diagnoses , or corresponding symptoms . CONCLUSION The achievement of remission had a beneficial effect on anxiety , ADHD , and DBD symptoms , regardless of the type of treatment received . There were no differential effects of medication or CBT on outcome , except for a nonsignificant trend that those adolescents treated with SSRIs showed a greater decrease in rates of comorbid DBDs relative to those treated with venlafaxine . Clinical trial registration information-Treatment of SSRI-Resistant Depression In Adolescents ( TORDIA ) ; http:// clinical trials.gov/ ; NCT00018902 Background Early rehabilitation after stroke is essential to help reduce disability . Purpose To summarize evidence on the benefits and harms of nonpharmacologic and pharmacologic treatments for motor deficits and mood disorders in adults who have had stroke . Data Sources English- language search es of multiple electronic data bases from April 2009 through July 2018 ; targeted search es to December 2018 for studies of selective serotonin reuptake inhibitors ( SSRIs ) or serotonin-norepinephrine reuptake inhibitors . Study Selection 19 systematic review s and 37 r and omized controlled trials addressing therapies for motor deficits or mood disorders in adults with stroke . Data Extraction One investigator abstract ed the data , and quality and GRADE assessment were checked by a second investigator . Data Synthesis Most interventions ( for example , SSRIs , mental practice , mirror therapy ) did not improve motor function . High- quality evidence did not support use of fluoxetine to improve motor function . Moderate- quality evidence supported use of cardiorespiratory training to improve maximum walking speed and repetitive task training or transcranial direct current stimulation to improve activities of daily living ( ADLs ) . Low- quality evidence supported use of robotic arm training to improve ADLs . Low- quality evidence indicated that antidepressants may reduce depression , whereas the frequency and severity of antidepressant-related adverse effects was unclear . Low- quality evidence suggested that cognitive behavioral therapy and exercise , including mind-body exercise , may reduce symptoms of depression and anxiety . Limitation Studies were of poor quality , interventions and comparators were heterogeneous , and evidence on harms was scarce . Conclusion Cardiorespiratory training , repetitive task training , and transcranial direct current stimulation may improve ADLs in adults with stroke .  Cognitive behavioral therapy , exercise , and SSRIs may reduce symptoms of poststroke depression , but use of SSRIs to prevent depression or improve motor function was not supported . Primary Funding Source U.S. Department of Veterans Affairs , Veterans Health Administration We reported an independent association of the short variant of the serotonin transporter gene‐linked polymorphic region ( SERTPR ) and tryptophan hydroxylase ( TPH ) genes with antidepressant response to  selective serotonin reuptake inhibitors ( SSRIs ) . The aim of the present study was to confirm the effect of the SERTPR and TPH gene variants on the  SSRIs antidepressant activity in a new sample of major and bipolar depressives . Two hundred and twenty one in patients ( major depressives = 128 , bipolar disorder = 93 ) were treated with SSRIs ( fluvoxamine or paroxetine ) for 6 weeks ; the severity of depressive symptoms was weekly assessed with the Hamilton Rating Scale for Depression ( HAMD ) . SERTPR and TPH variants were determined using PCR‐based techniques , 220 subjects genotyped for SERTPR and 221 for TPH that were never included in previous studies . SERTPR*s/s variant association with a poor response to SSRI treatment was confirmed , even if with less significant P values ( P = 0.034 ) , independently from clinical variables ; pooling the present sample with previous ones we observed a highly significant effect ( P < 0.000001 ) . TPH*A/A variants showed higher HAMD scores throughout the trial but with only a trend in the same direction of our previous study in terms of a worse response of A/A genotypes . Thus , the previous positive association was not fully replicated for TPH . The present independent replication confirms SERTPR variants as a liability factor for antidepressant efficacy while the TPH effect is not unequivocal . © 2004 Wiley‐Liss , 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 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 BACKGROUND Approximately half of patients who are prescribed selective serotonin re-uptake inhibitors ( SSRIs ) either do not respond to treatment or do not experience a sustained response . OBJECTIVE The purpose of this study was to assess the efficacy of venlafaxine immediate-release ( IR ) and extended-release ( XR ) in out patients who either did not respond to SSRI treatment or did not maintain a sustained response . METHODS Out patients who met the Diagnostic and Statistical Manual of Mental Disorders , Fourth Edition ( DSM-IV ) criteria for major depressive disorder who were previously treated with an SSRI ( fluoxetine > or = 20 mg/d ; sertraline > or = 50 mg/d ; paroxetine > or = 20 mg/d ) for > or = 6 weeks , but demonstrated an inadequate or unsustained response , were switched  to venlafaxine ( IR or XR formulation , 50 - 400 mg/d , titrated from 37.5 mg/d ) for > or = 6 weeks . Response at 6 to 8 weeks was defined as total score < or = 10 on the modified 25-item Hamilton Depression ( HAM-D25 ) rating scale or total score > or = 5 on the 21-item Patient Global Improvement ( PGI-21 ) scale . Remission was defined as a HAM-D25 total score < or = 8 or PGI-21 score > or = 7 . Tests were administered by an unblinded , board-certified psychiatrist . RESULTS A total of 73 patients ( 54 women , 19 men ; mean age , 38.6 years ) were enrolled and treated with venlafaxine IR ( n = 63 ) or venlafaxine XR ( n = 10 ) ; 33 were SSRI nonresponders and 36 had an unsustained response to SSRI treatment . Four patients receiving venlafaxine IR discontinued due to drug-related adverse events ( agitation , sedation , or nausea ) . Data from these patients were excluded from the analysis . After 6 to 8 weeks of treatment , 94.2 % ( 65/69 ) of patients were considered responders ( HAM-D25 or PGI-21 criteria ) ; 91.3 % ( 63/69 ) of patients responded to treatment as assessed by both measures . Eighty-seven percent ( 60/69 ) and 85.5 % ( 59/69 ) of patients achieved remission based on HAM-D,5 and PGI-21 criteria , respectively . Response/remission rates were comparable among patients treated with SSRIs , regardless of whether patients had failed to respond to treatment with 1 or 2 SSRIs . CONCLUSION Venlafaxine IR/venlafaxine XR may be effective in out patients with major depressive disorder who do not respond or have an unsustained response to SSRIs . However , r and omized , controlled trials are needed before any conclusions can be drawn about the efficacy of this agent in this population The Treatment of SSRI-Resistant Depression in Adolescents study ( TORDIA ) was design ed to inform clinicians as to the best next step in the treatment after a depressed adolescent has not responded to an adequate trial with a selective  serotonin re-uptake inhibitor (SSRI).[1 ] In this six-site study , conducted from 2000 to 2006 , 334 treatment-resistant adolescents with major depressive disorder ( MDD ) were r and omized to one of the four treatment strategies in a two-by-two balanced factorial design : ( a ) switch to another SSRI ; ( b ) switch to venlafaxine ; ( c ) switch to another SSRI and add cognitive behavioral therapy ( CBT ) ; or ( d ) switch to venlafaxine and add CBT . The SSRI switch options were fluoxetine , and for the first half of the trial ( n = 181 ) , paroxetine . Because of the concerns about the safety and efficacy of paroxetine , citalopram was used instead during the second half of the trial ( n = 153 ) . All enrolled youth had not responded to an “ adequate trial ” with an SSRI , defined as treatment for at least 8 weeks , with the last 4 weeks at a dosage that was the equivalent of 40 mg of fluoxetine . This communication focuses on acute treatment , which was 12 weeks in duration BACKGROUND Due to their favorable side-effect profile , atypical antipsychotic agents offer important therapeutic advantages in mood disorders .  Ziprasidone , an atypical antipsychotic agent with strong 5-HT(1A ) agonist activity , may be particularly useful when used in conjunction with st and ard antidepressants in treatment-resistant depression . The purpose of this study is to test this hypothesis in depressed out patients who have not experienced significant clinical improvement following an adequate trial of a selective serotonin reuptake inhibitor ( SSRI ) . METHOD Twenty patients with major depressive disorder ( MDD ) who had failed to experience a clinical response to an adequate trial of an SSRI were treated with open-label ziprasidone in addition to their SSRI for 6 weeks between February 2002 and December 2002 . MDD was diagnosed with the Structured Clinical Interview for DSM-IV Axis I disorders . Clinical response was defined as a 50 % or greater decrease in depressive symptoms during the course of the trial ( baseline to endpoint ) , as measured by the HAM-D-17 total score . RESULTS Thirteen of 20 patients ( 65.0 % ) completed the trial . Using a completer analysis , 8 patients ( 61.5 % ) were classified as responders . An intent-to-treat ( ITT ) analysis result ed in 10 responders ( 50.0 % ) . The overall proportion of remitters was 5 of 13 ( 38.5 % ) using a completer analysis and 5 of 20 ( 25.0 % ) using the ITT analysis . Ziprasidone administration appeared to be safe , with no clinical ly significant QTc prolongation or severe adverse events observed in any of the study participants . CONCLUSION These results suggest a possible augmentation role for ziprasidone when used in conjunction with SSRIs in SSRI-resistant MDD Objective : This is a retrospective study to add to the existing body of clinical information regarding male sexual side effects associated with antidepressants . From the chart review , thirty-four out of eighty male patients were identified to have reported loss of libido , erectile difficulty , anorgasmia , and delayed ejaculation while receiving pharmacotherapy of selective serotonin reuptake blockers ( fluoxetine , paroxetine , and sertraline ) ; tricyclic antidepressants ( nortriptyline , imipramine , amitriptyline , desipramine , and clomipramine ) ; and a monoamine oxidase inhibitor ( phenelzine ) . Method : The authors also discussed the management of these sexual side effects by waiting for spontaneous remission , reducing the dosage level , and substituting the offending drug with other antidepressants . Results : This article underscores the underreported nature of antidepressant-associated sexual dysfunction , the high incidence of SSRI-associated sexual side effects , equal potentials in causing sexual side effects among the three SSRI 's , the low incidence rate of sexual adverse effects from bupropion , and the minimal need to add an antidote if the side effects are to be managed systematic ally . Conclusions : Finally , male sexual side effects can occur r and omly and involve any sexual phase r and omly , and the treatment approaches are similar , regardless of the types of sexual dysfunction associated with antidepressants To evaluate the possible influence of buspirone on sexual dysfunction in depressed patients treated with a selective serotonin reuptake inhibitor ( SSRI )  , we analyzed data from a placebo-controlled trial design ed to explore the efficacy of buspirone as add-on treatment for patients not responding to an SSRI alone . At baseline , all patients met the criteria for a major depressive episode according to DSM-IV and had received citalopram or paroxetine during a minimum of 4 weeks without responding to the treatment .  Buspirone ( flexible dosage , 20 - 60 mg/day ) or placebo was added to the SSRI for 4 weeks ; the mean daily dose of buspirone at endpoint was 48.5 mg ( SD = 1.0 ) . Sexual dysfunction was evaluated using a structured interview . Before starting medication with buspirone or placebo , 40 % ( 47 of 117 ) reported at least one kind of sexual dysfunction ( decreased libido , ejaculatory dysfunction , orgasmic dysfunction ) . During the 4 weeks of treatment , approximately 58 % of subjects treated with buspirone reported an improvement with respect to sexual function ; in the placebo group , the response rate was 30 % . The difference between placebo and active drug treatment was more pronounced in women than in men . The response was obvious during the first week , with no further improvement during the course of the study . It is suggested that the effect of buspirone on sexual dysfunction is a result of a reversal of SSRI-induced sexual side effects rather than of an antidepressant effect of the drug Objective : To review the mechanism of selective serotonin reuptake inhibitor (SSRI)–mediated serotonergic neurotransmission , focusing on serotonin 1A ( 5-HT1A ) autoreceptors , which are proposed to be involved in delaying therapeutic efficacy . Vilazodone was specifically design ed to function both as an SSRI and a partial agonist at 5-HT1A receptors . This combined mechanism is proposed to decrease time to efficacy , minimize sexual side effects , and provide concomitant anxiolytic properties . Data Sources : A PubMed search of all English- language articles from January 1990 to January 2013 was conducted using the search terms depression and 5-HT1A , depression and buspirone , depression and pindolol , and vilazodone . Study Selection : We found 47 articles and abstract s that were selected for inclusion on the basis of information about the pharmacology of 5-HT1A receptors and the clinical data on pindolol , buspirone , and vilazodone in depression . Data Extraction : This review summarizes current literature involving antidepressant activity , the role of 5-HT1A autoreceptors , and clinical trials involving serotonin reuptake inhibition in conjunction with 5-HT1A agonists and partial agonists , with a focus on vilazodone . Results : Vilazodone has demonstrated efficacy in 2 large , r and omized , double-blind , placebo-controlled trials in major depressive disorder . Results suggest that vilazodone has a low incidence of sexual side effects and is effective in patients with high levels of anxiety . A pooled analysis shows evidence of significant symptom reduction after only 1 week of therapy . Conclusions : If future studies corroborate the clinical benefits attributed to its mechanism of action , vilazodone may show potential advantages in terms of onset of action , sexual side effects , and anxiolytic activity in patients with major depressive disorder Background As compared with the long variant ( L ) , the short variant ( S ) of the functional polymorphic region of the serotonin transporter gene ( 5-HTTLPR ) has been associated with a lower antidepressant efficacy in major depression , but some replication studies have evidence d contradictory results . Sex differences may explain these contradictory results . Methods One hundred and three in patients ( 74 women and 29 men ) with a major depressive episode were assessed prospect ively for antidepressant efficacy after 4 weeks of treatment with selective serotonin reuptake inhibitors ( SSRI ) and non-SSRI drugs . Results As compared with LL/LS , the SS genotype of the 5-HTTLPR was associated with a lower antidepressant efficacy in depressed women ( 79 vs. 50 % responders , P = 0.035 ) . This result was shown with both SSRI and non-SSRI antidepressants . The logistic regression performed in women showed that response to treatment was related to genotype ( odds ratio=0.15 ; 95 % confidence interval=0.03–0.85 ; P = 0.03 ) and not to other variables . No effect of 5-HTTLPR was found in depressed men . Conclusion Despite a low power , this study suggests a significant effect of 5-HTTLPR genotype on antidepressant efficacy in depressed women but not in men , with both SSRI and non-SSRI drugs . Further research is needed to confirm this result and investigate its underlying mechanisms OBJECTIVE To compare the emergent sexual effects of moclobemide and selective serotonin reuptake inhibitors ( SSRIs ) during acute and maintenance therapy in routine practice . METHOD 268 patients were evaluated for sexual function  at baseline , 6 weeks , 3 and 6 months of treatment using physician ratings and self-rating question naires . Patients received moclobemide , an reversible monoamine oxidase A inhibitor ( RIMA ) , or a SSRI ( fluoxetine , fluvoxamine , paroxetine , sertraline ) . RESULTS Baseline values were similar in all groups . Incidences of impairments of sexual functioning with treatment , whether clinical ly relevant or not , were 24.3 % with moclobemide and 61.5 % with SSRIs ( physician ratings ) , with no significant tolerance to these effects . There was a suggestion of differences between the SSRIs in their specific dysfunctions they cause . SSRIs ( 21.6 % of patients ) had about ten times the moclobemide rate ( 1.9 % ) of sexual dysfunction reported as adverse events . Antidepressant efficacy was comparable between treatments . CONCLUSION In patients for whom sexual function  is important or sexual dysfunction  is present , moclobemide should be considered a first line antidepressant
The number of previous treatments with antidepressants was negatively correlated with treatment outcome .
After a first SSRI , any switch within or between classes of antidepressants appears legitimate ( second SSRI , novel dual-acting antidepressants , selective norepinephrine or nor-adrenergic/dopaminergic agents , or tricyclic anti-depressant or mianserin ) .
No unequivocal evidence is available to prove an advantage of a between-class switch .
OBJECTIVE Selective serotonin reuptake inhibitors ( SSRIs ) are frequently used as a first antidepressant for major depressive disorder but have response rates of 50 % to 60 % in daily practice .
For patients with insufficient response to SSRIs , switching is often applied .
This article aims to systematic ally review the evidence for switching pharmacotherapy after a first SSRI .