- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00121888
Trial of Paroxetine-CR for the Treatment of Patients With Post Traumatic Stress Disorder Remaining Symptomatic After Initial Exposure Therapy
Randomized Trial of Paroxetine-CR for the Treatment of Patients With Post Traumatic Stress Disorder Remaining Symptomatic After Initial Exposure Therapy
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Post Traumatic Stress Disorder (PTSD) is common in the general population with the National Comorbidity Survey reporting a lifetime prevalence of about 8% in the United States (Kessler, et al 1995). PTSD is associated with marked symptomatic distress as well as significant impairment, dysfunction and reduction in overall quality of life (Kessler, 2000). Both pharmacotherapeutic interventions, including serotonin selective reuptake inhibitors (SSRIs), and psychosocial interventions such as cognitive-behavior therapy (CBT) have demonstrated efficacy for PTSD (Davidson, 2001; Foa, 2000) However, although these interventions can be helpful, many patients remain symptomatic despite initial treatment. There is little data available to guide practice regarding the efficacy of "next step" strategies for patients remaining symptomatic despite treatment.
In this study the researchers will examine the relative efficacy of the addition of the SSRI, paroxetine-CR, compared to placebo for patients remaining symptomatic despite a brief and intensive course of CBT.
This is a two phase, 14-16 week research study in which participants who remain symptomatic at the end of one phase (4-6 weeks) enter into the next phase. In phase I, all participants receive prolonged exposure (PE) therapy. Participants who continue to have significant distress because of posttraumatic stress disorder after 8 sessions of therapy will enter Phase II. In Phase II subjects will receive 5 more sessions of PE therapy and be randomly assigned (by chance, like a flip of a coin) to receive paroxetine-cr (Paxil-CR) or placebo (contains no active medication). Participants receive this combined treatment over the next 10 weeks.
Tipo de estudio
Inscripción
Fase
- Fase 2
- Fase 1
Contactos y Ubicaciones
Ubicaciones de estudio
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Massachusetts
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Boston, Massachusetts, Estados Unidos, 02114
- Massachusetts General Hospital
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Male or female outpatients at least 18 years of age with a primary (the condition that is most central to the patient's current distress) psychiatric diagnosis of PTSD as defined by DSM-IV criteria.
- Patients must have remained symptomatic (CGI-S > 3) and a score of at least 6 on the Short PTSD Rating Interview (SPRINT) after a minimum of 7 sessions of PE (delivered within 6 weeks) to be eligible for randomized treatment.
Exclusion Criteria:
- Patients will be excluded from the study for serious medical illness or instability for which hospitalization may be likely within the next three months.
- Pregnant or lactating women or those of childbearing potential not using medically accepted forms of contraception will be excluded.
- Concurrent use of other psychotropic medications; all psychotropic medications (excluding benzodiazepines) must be stopped at least one week prior to entry into the initial PE phase of the study. Patients may remain on concomitant benzodiazepines (<2 mg/d clonazepam or its equivalent), as long as the benzodiazepine therapy was initiated at least 2 months prior to randomization and at a constant dose for >4 weeks prior to randomization; the dose will be held constant through the study.
- Lifetime diagnosis of schizophrenia or any other psychosis, mental retardation, organic mental disorders, or bipolar disorder; obsessive-compulsive disorder, eating disorders, cutting or other significant self-injurious behavior or alcohol/substance abuse disorders within the last 6 months, are study exclusions. Patients with a current primary diagnosis of major depression, dysthymia, social anxiety disorder and generalized anxiety disorder are excluded - the presence of these disorders is permissible as long as the PTSD is the predominant disorder.
- Patients with a history of hypersensitivity or poor response to paroxetine are excluded. Concurrent dynamic or supportive psychotherapy is permitted as long as it is has been ongoing for at least 2 months prior to onset of study entry.
- Patients with current compensation or legal actions related to the effects of the trauma, or those with an ongoing relationship with their assailant.
- Patients with a positive toxicology screen at baseline consistent with evidence of current substance abuse or dependence as determined by clinical interview.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
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Symptoms of post traumatic stress disorder
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Medidas de resultado secundarias
Medida de resultado |
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Clinical global improvement
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Naomi M Simon, MD, Massachusetts General Hospital
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Desordenes mentales
- Procesos Patológicos
- Trastornos relacionados con el trauma y el estrés
- Enfermedad
- Trastornos de Estrés, Traumáticos
- Trastornos de estrés postraumático
- Efectos fisiológicos de las drogas
- Agentes neurotransmisores
- Mecanismos moleculares de acción farmacológica
- Inhibidores de enzimas
- Drogas psicotropicas
- Inhibidores de la captación de serotonina
- Inhibidores de la captación de neurotransmisores
- Moduladores de transporte de membrana
- Agentes de serotonina
- Agentes antidepresivos
- Inhibidores de enzimas del citocromo P-450
- Agentes antidepresivos, segunda generación
- Inhibidores del citocromo P-450 CYP2D6
- Paroxetina
Otros números de identificación del estudio
- 2002-P-001879
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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