- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT01896934
Frontal Hypoperfusion Effects on Antidepressant Outcomes in Late-Life Depression
Frontal Hypoperfusion Effects on Antidepressant Outcomes in Late-Life Depression (R21)
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
The long-term goal of this line of research is to determine if in late-life depression (LLD), cerebrovascular dysregulation is predictive of antidepressant outcomes. The investigators hypothesize that vascular pathology resulting in reduced cerebrovascular reactivity contributes to frontocingulate hypoperfusion. Such pathology would impair neurovascular coupling and reduce the ability of the vasculature to improve frontocingulate perfusion during antidepressant treatment. Thus decreased cerebrovascular reactivity and perfusion may be a biomarker of antidepressant nonresponse. As an initial step in this research, the current study will utilize MRI arterial spin labeling (ASL) to examine if cerebrovascular reactivity deficits and resting cerebral blood flow (CBF) deficits predict antidepressant nonremission in LLD. The rationale for this proposal is that it will identify mechanisms by which vascular pathology may contribute to LLD. If the study hypotheses are correct, this crucial next step will support studies examining antidepressant properties of cardiovascular drugs that may reverse vascular pathology and improve perfusion.
The investigators will pursue our initial goal by examining ASL predictors of nonremission to a 12-week trial of sertraline. Forty LLD subjects will complete MRI, cognitive testing, and hyperintensity assessment. ASL measured CBF will be obtained during a hypercapnia challenge and at rest with room air. This will help determine if deficits in cerebrovascular reactivity (CVR) and/or resting and on-demand CBF measures predict nonremission.
AIM: To test for differences in CVR and CBF in dorsal frontal cognitive control regions between individuals who do and do not remit to a 12-week course of sertraline (defined as MADRS ≤ 7).
Hypothesis 1: Compared with remitters, during a hypercapnia challenge nonremitters will exhibit less CVR in the dlPFC and dAC.
Hypothesis 2: Compared with remitters, while breathing room air nonremitters will exhibit lower resting CBF in the dorsal anterior cingulate (dAC) and dorsolateral prefrontal cortex (dlPFC).
Exploratory Aim: To examine the relationship between ASL measures (CVR to hypercapnia and resting CBF during normoxia) and performance in cognitive domains implicated in LLD treatment outcomes. For this Aim, we will focus on functions involving the dlPFC and dAC, specifically executive function and processing speed.
The study will enroll patients from clinical referrals and response to advertisements. In these cases, potential participants will call our study contact number. Study staff will describe the study to them, including a description of the study entry criteria. Those who continue to be interested will then be scheduled for an evaluation. After scheduling, a study physician will review their electronic medical record to assure that potential subjects meet entry criteria.
Following policies of the Vanderbilt University Health System Institutional Review Board, written informed consent will be obtained and documented by the study's Research Coordinator before any study-related procedures are performed. The study coordinator will review study procedures and the consent form with each potential participant. Each individual may take as much time as they like to decide if they do or do not wish to participate. There is no randomization. All participants receive open-label sertraline.
An initial evaluation will determine eligibility, depression severity, and evaluate medical and psychiatric history. Participants will also complete a detailed battery assessing cognitive function. During this time they will also complete the one-hour MRI session, which includes measurement of cerebral perfusion and vascular reactivity.
They will then begin the 12-week trial of open-label sertraline, allowing titration up to the maximum dose of 200mg daily. At the end of the study participants will be referred for ongoing clinical treatment.
Tipo de estudo
Inscrição (Real)
Estágio
- Fase 4
Contactos e Locais
Locais de estudo
-
-
Tennessee
-
Nashville, Tennessee, Estados Unidos, 37212
- Vanderbilt University
-
-
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Age 60 years or older.
- Current diagnosis of major depressive disorder (DSM-IV-TR), single episode, recurrent or chronic, without psychotic features, as detected by MINI and clinical exam.
- Minimum MADRS score ≥ 15.
- Mini-Mental State Exam ≥ 22.
- Ability to read and write English.
Exclusion Criteria:
- Current or past diagnoses of other Axis I psychiatric disorders, including panic disorder and substance dependence.
- Any use of illicit substances (such as marijuana or cocaine) or abuse of prescription medications (such as benzodiazepines or opiates) within the last three months.
- Presence of acute suicidality
- Current or past psychosis
- Known primary neurological disorder, including dementia, brain tumors, epilepsy, Parkinson's disease, or demyelinating diseases
- Chronic untreated medical disorders (including but not limited to hypertension, hyperlipidemia, fibromyalgia, hypothyroidism, or any other disorder) where treatment is warranted
- Need for continuous oxygen use or any medical disorder where the hypercapnia challenge would be contraindicated or put the subject at increased risk. This would include active respiratory disease, chronic angina or other unstable cardiac conditions.
- Any physical or intellectual disability affecting completion of assessments
- MRI contraindications
- Electroconvulsive therapy in last 6 months
- Use of fluoxetine in the last 6 weeks. Occasional use of benzodiazepines or non-benzodiazepine sedatives (such as zolpidem, eszopiclone, or zaleplon) during the last month is allowable.
- Known allergy or hypersensitivity to sertraline
- A failed therapeutic trial of sertraline in the current depressive episode (defined as at least 6 weeks of treatment at a daily dose of 100mg or higher)
- Current or planned psychotherapy
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Ciência básica
- Alocação: N / D
- Modelo Intervencional: Atribuição de grupo único
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
---|---|
Experimental: Sertraline
50-200mg daily
|
50-200mg daily
Outros nomes:
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
---|---|---|
Remission of Depression
Prazo: Week 12
|
Montgomery-Asberg Depression Rating Scale (MADRS) is a measure of depression severity.
This will be used to define remission as a score of 7 or less.
|
Week 12
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
---|---|---|
Change in Clinician-rated Depression Severity
Prazo: Assessed every 2 weeks from baseline to week 12, change from baseline to week 12 is reported
|
Change in depression severity will be measured by the clinician-rated Montgomery Asberg Depression Rating Scale (MADRS), range of 0-60, with higher scores indicating more severe depression
|
Assessed every 2 weeks from baseline to week 12, change from baseline to week 12 is reported
|
Change in Patient-rated Depression Severity
Prazo: Assessed every 2 weeks from baseline to week 12, change from baseline to week 12 is reported
|
Change in depression severity measured by the patient-rated Quick Inventory of Depressive Symptoms, Self-Rated (QIDS-SR16).
The QIDS-SR16 is a self-report measure of depression severity with a range of 0-27, with higher scores indicative of more severe depression.
|
Assessed every 2 weeks from baseline to week 12, change from baseline to week 12 is reported
|
Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Warren D Taylor, MD, MHSc, Vanderbilt University
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Sintomas Comportamentais
- Transtornos Mentais, Desordem Mental
- Transtornos de Humor
- Depressão
- Desordem depressiva
- Transtorno Depressivo Maior
- Efeitos Fisiológicos das Drogas
- Agentes Neurotransmissores
- Mecanismos Moleculares de Ação Farmacológica
- Drogas Psicotrópicas
- Inibidores de Captação de Serotonina
- Inibidores de Captação de Neurotransmissores
- Moduladores de transporte de membrana
- Agentes de Serotonina
- Antidepressivos
- Sertralina
Outros números de identificação do estudo
- 130360
- R21MH099218-01A1 (Concessão/Contrato do NIH dos EUA)
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .
Ensaios clínicos em Transtorno Depressivo Maior
-
Centre Hospitalier Universitaire de Saint EtienneBayerRescindido
-
Memorial Sloan Kettering Cancer CenterAtivo, não recrutandoDiagnóstico confirmado de ß-talassemia MajorEstados Unidos
-
Assiut UniversityAinda não está recrutando
-
Università degli Studi di FerraraConcluído
-
HaEmek Medical Center, IsraelConcluído
-
Cerus CorporationConcluído
-
First Affiliated Hospital of Guangxi Medical UniversityPeking University People's Hospital; Ruijin Hospital; The Affiliated Hospital... e outros colaboradoresRecrutamento
-
Bioray LaboratoriesFirst Affiliated Hospital of Guangxi Medical UniversitySuspenso
-
National Taiwan University HospitalRecrutamentoTalassemia MajorTaiwan
-
DisperSol Technologies, LLCConcluídoTalassemia MajorTailândia, Estados Unidos