Risk factors for early treatment discontinuation in patients with obsessive-compulsive disorder

INTRODUCTION: In obsessive-compulsive disorder, early treatment discontinuation can hamper the effectiveness of first-line treatments. OBJECTIVE: This study aimed to investigate the clinical correlates of early treatment discontinuation among obsessive-compulsive disorder patients. METHODS: A group of patients who stopped taking selective serotonin reuptake inhibitors (SSRIs) or stopped participating in cognitive behavioral therapy before completion of the first twelve weeks (total n = 41; n = 16 for cognitive behavioral therapy and n = 25 for SSRIs) were compared with a paired sample of compliant patients (n = 41). Demographic and clinical characteristics were obtained at baseline using structured clinical interviews. Chisquare and Mann-Whitney tests were used when indicated. Variables presenting a p value <0.15 for the difference between groups were selected for inclusion in a logistic regression analysis that used an interaction model with treatment dropout as the response variable. RESULTS: Agoraphobia was only present in one (2.4%) patient who completed the twelve-week therapy, whereas it was present in six (15.0%) patients who dropped out (p = 0.044). Social phobia was present in eight (19.5%) patients who completed the twelve-week therapy and eighteen (45%) patients who dropped out (p = 0.014). Generalized anxiety disorder was present in eight (19.5%) patients who completed the twelve-week therapy and twenty (50%) dropouts (p = 0.004), and somatization disorder was not present in any of the patients who completed the twelveweek therapy; however, it was present in six (15%) dropouts (p = 0.010). According to the logistic regression model, treatment modality (p = 0.05), agoraphobia, the Brown Assessment of Beliefs Scale scores (p = 0.03) and the Beck Anxiety Inventory (p = 0.02) scores were significantly associated with the probability of treatment discontinuation irrespective of interactions with other variables. DISCUSSION AND CONCLUSION: Early treatment discontinuation is a common phenomenon in obsessive-compulsive disorder patients from our therapeutic setting. Psychiatric comorbidities were associated with discontinuation rates of specific treatments. Future studies might use this information to improve management for increased compliance and treatment effectiveness.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP

Comparative effectiveness study of group cognitive-behavioral therapy and of selective serotonin reuptake inhibitors in patients with obsessive-compulsive disorder: a pragmatical clinical trial

Introdução: A Terapia Cognitivo-Comportamental (TCC) e os inibidores seletivos de recaptação de serotonina (ISRS) são considerados os tratamentos de primeira linha para o Transtorno Obsessivo-Compulsivo (TOC) nos ensaios clínicos randomizados (ECR). No entanto, a maior parte destes estudos exclui grande parte dos pacientes (em torno de 50%) por apresentarem comorbidades psiquiátricas. Ensaios clínicos pragmáticos e de efetividade, que costumam simular ambientes clínicos naturalísticos ao estudar amostras que representam melhor a população real comparando tratamentos ativos, são de grande importância para as decisões tomadas por um sistema de saúde e poucos têm sido feitos para avaliar a efetividade dos tratamentos para o TOC. O objetivo do presente estudo foi comparar os tratamentos de primeira linha para o TOC em uma amostra mais próxima da população que procura atendimento e avaliar características clínicas associadas às respostas aos tratamentos. Metodologia: Pacientes de 18 a 65 anos de idade, com escore de linha de base da YBOCS de pelo menos 16 para obsessões e compulsões, ou pelo menos 10 apenas para obsessões ou compulsões e com possíveis comorbidades psiquiátricas adicionais foram alocados seqüencialmente para tratamento de TCC em grupo (TCCG; n = 70) ou para tratamento medicamentoso (ISRS; n = 88). A TCCG consistiu em doze sessões semanais de duas horas cada com grupos de 6 a 8 pacientes, baseadas em um manual validado (Cordioli, 2002). O medicamento utilizado foi a fluoxetina com dosagem máxima de 80mg/dia. Foram analisadas respostas aos tratamentos como variáveis contínua (redução percentual na YBOCS) e categórica (redução de pelo menos 35% na YBOCS e ICG 1 muito melhor ou 2 melhor. Resultados: Os escores da YBOCS reduziram 23,13% no grupo tratado com TCCG e 21,54% no grupo tratado com ISRS, sem diferença estatística entre os grupos de tratamento (p = 0,875). Foi encontrada em 33,3% dos pacientes de TCCG e 27,7% dos pacientes de ISRS a redução de pelo menos 35% no escore da YBOCS e resposta à ICG 1 ou 2 (p = 0,463). O número médio de comorbidades psiquiátricas por paciente foi 2,7; e 81,4% da amostra apresentou pelo menos uma comorbidade. A redução na YBOCS foi significativamente menor entre os pacientes com uma ou mais comorbidade psiquiátrica (21,15% e 18,73%, respectivamente) do que entre os pacientes com TOC puro (34,62%) (p = 0,034). Sexo masculino, apresentar um escore inicial mais alto na Beck-A, ter abandonado o tratamento e apresentar comorbidade com Transtorno Depressivo Maior ou Distimia foram associados com taxas mais baixas de resposta ao tratamento, independente do tratamento recebido. Os resultados sugeriram que em uma população mais heterogênea os tratamentos de primeira linha para o TOC são menos efetivos. É necessário o desenvolvimento de intervenções que sejam efetivas para uma população da prática clínicaIntroduction: Cognitive-Behavioral Therapy (CBT) and selective serotonin reuptake inhibitors (SSRI) are considered the first line treatments for Obsessive-Compulsive Disorder (OCD) in randomized controlled trials (RCT). However, most of these trials exclude a great amount of patients (around 50%) for presenting psychiatric comorbidities. Pragmatical and effectiveness clinical trials simulate natural clinical environments and compare active treatments in samples that represent the real population. These trials are of great importance for decision makers of the health public system, and only a few trials have investigated the effectiveness of treatments to OCD. The aim of this study was to compare the first line OCD treatments in a sample closer to the OCD real population, and to evaluate clinical characteristics associated to responses to treatments. Methodoly: Patients (1865 years; baseline Yale-Brown Obsessive-Compulsive Scale (YBOCS) scores 16; potentially presenting additional psychiatric comorbidities) were sequentially allocated for treatment with group CBT (GCBT; n=70) or pharmacological treatment (SSRI; n=88). GCBT consisted in twelve two hours weekly sessions with groups of 6 to 8 patients, based in a validated manual (Cordioli, 2002). Medication utilized in SSRI group was fluoxetine, 80mg/day. Response to treatment was analyzed as continuous variable (percent reduction on YBOCS) and as categorical variable (reduction of at least 35% on YBOCS and CGI 1 much better or 2 better. Results: Mean Y-BOCS scores fell by 23.13% in the GCBT and 21.54% in the SSRI group. Symptom reduction did not differ between groups (p = 0.875). A reduction of at least 35% in baseline Y-BOCS score and a CGI rating of 1 (much better) or 2 (better) was achieved by 33.3% of patients in the GCBT and 27.7% in the SSRI group (p=0.463). Patients presented 2.7 mean number of psychiatric comorbidity, and 81.4% showed at least one additional disorder. The YBOCS reduction was significantly lower in patients with one or more psychiatric comorbidities (21.15%, and 18.73%, respectively) than those with pure OCD (34.62%) (p = 0.034). Low responses to treatments were found to be associated to: being male, presenting a high initial Beck-A score, comorbid major depression, dysthymia and abandoning treatment, independently of the treatment received. The development of effective interventions to a real population is necessar

Rabies transmitted by vampire bats to humans: An emerging zoonotic disease in Latin America? Revista Panamericana Salud Pública

Human rabies transmitted by vampire bats reached new heights in Latin America in 2005. A total of 55 human cases were reported in several outbreaks, 41 of them in the Amazon region of Brazil. Peru and Brazil had the highest number of reported cases from 1975 to 2006. In Peru, outbreaks involving more than 20 cases of bat-transmitted human rabies were reported during the 1980s and 1990s. During this period, a smaller number of cases were reported from outbreaks in Brazil. A comparison of data from field studies conducted in Brazil in 2005 with those from the previous decade suggests similar bat-bite situations at the local level. The objective of this study was to review the epidemiological situation and, on the basis of this information, discuss possible factors associated with the outbreaks. Prevention and control measures already recommended for dealing with this problem are also reviewed, and some further suggestions are provided

Rabies transmitted by vampire bats to humans: An emerging zoonotic disease in Latin America? Revista Panamericana Salud Pública

Human rabies transmitted by vampire bats reached new heights in Latin America in 2005. A total of 55 human cases were reported in several outbreaks, 41 of them in the Amazon region of Brazil. Peru and Brazil had the highest number of reported cases from 1975 to 2006. In Peru, outbreaks involving more than 20 cases of bat-transmitted human rabies were reported during the 1980s and 1990s. During this period, a smaller number of cases were reported from outbreaks in Brazil. A comparison of data from field studies conducted in Brazil in 2005 with those from the previous decade suggests similar bat-bite situations at the local level. The objective of this study was to review the epidemiological situation and, on the basis of this information, discuss possible factors associated with the outbreaks. Prevention and control measures already recommended for dealing with this problem are also reviewed, and some further suggestions are provided

Rabies transmitted by vampire bats to humans: An emerging zoonotic disease in Latin America? Revista Panamericana Salud Pública

Human rabies transmitted by vampire bats reached new heights in Latin America in 2005. A total of 55 human cases were reported in several outbreaks, 41 of them in the Amazon region of Brazil. Peru and Brazil had the highest number of reported cases from 1975 to 2006. In Peru, outbreaks involving more than 20 cases of bat-transmitted human rabies were reported during the 1980s and 1990s. During this period, a smaller number of cases were reported from outbreaks in Brazil. A comparison of data from field studies conducted in Brazil in 2005 with those from the previous decade suggests similar bat-bite situations at the local level. The objective of this study was to review the epidemiological situation and, on the basis of this information, discuss possible factors associated with the outbreaks. Prevention and control measures already recommended for dealing with this problem are also reviewed, and some further suggestions are provided

Rabies transmitted by vampire bats to humans: An emerging zoonotic disease in Latin America?

Human rabies transmitted by vampire bats reached new heights in Latin America in 2005. A total of 55 human cases were reported in several outbreaks, 41 of them in the Amazon region of Brazil. Peru and Brazil had the highest number of reported cases from 1975 to 2006. In Peru, outbreaks involving more than 20 cases of bat-transmitted human rabies were reported during the 1980s and 1990s. During this period, a smaller number of cases were reported from outbreaks in Brazil. A comparison of data from field studies conducted in Brazil in 2005 with those from the previous decade suggests similar bat-bite situations at the local level. The objective of this study was to review the epidemiological situation and, on the basis of this information, discuss possible factors associated with the outbreaks. Prevention and control measures already recommended for dealing with this problem are also reviewed, and some further suggestions are provided

The impact of trauma and post-traumatic stress disorder on the treatment response of patients with obsessive-compulsive disorder

Few case series studies have addressed the issue of treatment response in patients with obsessive-compulsive disorder (OCD) and comorbid post-traumatic stress disorder (PTSD), and there are no prospective studies addressing response to conventional treatment in OCD patients with a history of trauma (HT). the present study aimed to investigate, prospectively, the impact of HT or PTSD on two systematic, first-line treatments for OCD. Two hundred and nineteen non-treatment-resistant OCD outpatients were treated with either group cognitive-behavioral therapy (GCBT n = 147) or monotherapy with a selective serotonin reuptake inhibitor (SSRI n = 72). Presence of HT and PTSD were assessed at intake, as part of a broader clinical and demographical baseline characterization of the sample. Severity and types of OCD symptoms were assessed with the Yale-Brown Obsessive-Compulsive Scale (YBOCS) and the Dimensional YBOCS (DYBOCS), respectively. Depression and anxiety symptoms were measured with the Beck Depression Inventory (BDI) and the Beck Anxiety Inventory (BAI). Both treatments had 12-week duration. Treatment response was considered as a categorical [35% or greater reduction in baseline YBOCS scores plus a Clinical Global Impression-Improvement rating of better (2) or much better (1)] and continuous variable (absolute number reduction in baseline YBOCS scores). Treatment response was compared between the OCD + HT group versus the OCD without HT group and between the OCD + PTSD group versus the OCD without PTSD group. Parametric and non-parametric tests were used when indicated. Data on HT and PTSD were available for 215 subjects. Thirty-eight subjects (17.67% of the whole sample) had a positive HT (OCD + HT group) and 22 subjects (57.89% of the OCD + HT group and 10.23% of the whole sample) met full DSM-IV criteria for PTSD. the OCD + HT and OCD without HT groups presented similar response to GCBT (60% of responders in the first group and 63% of responders in the second group, p = 1.00). Regarding SSRI treatment, the difference between the response of the OCD + HT (47.4%) and OCD without HT (22.2%) groups was marginally significant (p = 0.07). in addition, the OCD + PTSD group presented a greater treatment response than the OCD without PTSD group when treatment response was considered as a continuous variable (p = 0.01). the age when the first trauma occurred had no impact on treatment response. in terms of specific OCD symptom dimensions, as measured by the DYBOCS, OCD treatment fostered greater reductions for the OCD + PTSD group than for the OCD without PTSD group in the scores of contamination obsessions and cleaning compulsions, collecting and hoarding and miscellaneous obsessions and related compulsions (including illness concerns and mental rituals, among others). the OCD + PTSD group also presented a greater reduction in anxiety scores than the OCD without PTSD group (p = 0.003). the presence of HT or PTSD was not related to a poorer treatment response in this sample of non-treatment-resistant OCD patients. Unexpectedly, OCD patients with PTSD presented a greater magnitude of response when compared with OCD without PTSD patients in specific OCD symptom dimensions. Future studies are needed to clarify if trauma and PTSD have a more significant impact on the onset and clinical expression of OCD than on the conventional treatment for this condition, and whether OCD stemming from trauma would constitute a subtype of OCD with a distinct response to conventional treatment.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ São Paulo, Dept & Inst Psychiat, Sch Med, BR-05403010 São Paulo, BrazilUniv São Paulo, Inst Math & Stat, BR-05403010 São Paulo, BrazilUniv Fed Rio Grande do Sul, Dept Psychiat & Forens Med, BR-90035903 Porto Alegre, RS, BrazilUniversidade Federal de São Paulo, Dept Psychiat, BR-04026001 São Paulo, BrazilUniversidade Federal de São Paulo, Dept Psychiat, BR-04026001 São Paulo, BrazilFAPESP: 06/61459-7FAPESP: 06/50273-0FAPESP: 06/50829-8FAPESP: 2005-55628-8CNPq: 420.122/2005-2Web of Scienc

Clinical predictors of long-term outcome in obsessive-compulsive disorder

Background: The purpose of this study was to investigate demographic and clinical factors associated with the long-term outcome of obsessive-compulsive disorder (OCD). Methods: A hundred ninety-six previously untreated patients with DSM-IV criteria OCD completed a 12-week randomized open trial of group cognitive-behavioral therapy (GCBT) or fluoxetine, followed by 21 months of individualized, uncontrolled treatment, according to international guidelines for OCD treatment. OCD severity was assessed using the Yale–Brown Obsessive-Compulsive Scale (Y-BOCS) at different times over the follow-up period. Demographics and several clinical variables were assessed at baseline. Results: Fifty percent of subjects improved at least 35% from baseline, and 21.3% responded fully (final Y-BOCS score < or = 8). Worse prognosis was associated with earlier age at onset of OCD (P = 0.045), longer duration of illness (P = 0.001) presence of at least one comorbid psychiatric disorder (P = 0.001), comorbidity with a mood disorder (P = 0.002), higher baseline Beck-Depression scores (P = 0.011), positive family history of tics (P = 0.008), and positive family history of anxiety disorders (P = 0.008). Type of initial treatment was not associated with long-term outcome. After correction for multiple testing, the presence of at least one comorbid disorder, the presence of a depressive disorder, and duration of OCD remained significant. Conclusions: Patients under cognitive-behavioral or pharmacological treatment improved continuously in the long run, regardless of initial treatment modality or degree of early response, suggesting that OCD patients benefit from continuous treatment. Psychiatric comorbidity, especially depressive disorders, may impair the long-term outcome of OCD patients