Identifying Novel Aging Targets for Treatment of Delirium
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 5
- 试验地点
- 1
- 主要终点
- Structural/functional MRI dependent measures
研究概览
简要总结
The long-term goal of this research program is to improve understanding of the mechanistic link between Alzheimer's disease (AD) neuropathology, acute delirium, and cognitive impairment following acute respiratory failure. In this pilot study, the study team will establish a prospective cohort of older patients with acute respiratory failure and obtain data on delirium duration, AD imaging and CSF biomarkers, and cognitive outcomes following critical illness.
详细描述
The study team will recruit patients with no known history of dementia for enrollment into the cohort during their hospital stay for acute respiratory failure. The cohort will undergo testing including cognitive testing, MRI imaging, lumbar puncture for cerebrospinal fluid (CSF) analysis at 3 months following hospital discharge. The study will examine the association of delirium duration during the hospital stay and cognitive impairment at 3 month follow-up with CSF levels of amyloid- β42, tau, and phospho-tau. Measures of delirium will also be related with structural/functional MRI dependent measures. The goal is to design a larger prospective cohort study to evaluate the relationship between AD imaging and CSF biomarkers with delirium and post-ICU cognitive impairment. The results of this pilot study with provide important information with regard to future study design including: (1) ratio of eligible to recruited patients (2) retention rate; (3) safety and feasibility of protocol; and (4) preliminary effect size estimates.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 55 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age greater than or equal to 55 years
- •Anticipated ICU stay of at least 48 hours
- •Delirium during ICU stay defined as CAM-ICU positive on at least two occasions at least 12 hours apart within 72 hours.
排除标准
- •Diagnosis of dementia in electronic medical record at time of ICU admission
- •Blindness, deafness, or inability to understand English as this prevents ICU delirium assessment
- •Cognitive impairment prior to hospitalization (inability to follow instructions/comply with study/sign consent)
- •Score of > 3.30 on Informant Questionnaire of Cognitive -Decline in the Elderly (IQCODE)[34]. Questionnaire will be given to family member or legally authorized representative.
- •Pregnancy/lactating/breastfeeding
- •Legally incapacitated: Prisoner/Ward of State
- •History of prior large vessel cerebrovascular accident (CVA)
- •History of neurologic disorder prior to ICU admission including multiple sclerosis, Parkinson disease, epilepsy, amyotrophic lateral sclerosis (ALS), Guillain-Barre Syndrome (GBS)
- •Psychiatric illness including schizophrenia, bipolar disorder, depression with psychotic features
- •Not expected to survive 24 hours
- •Judgment of investigator that subject participation could jeopardize subject health/safety or integrity of study
- •Active malignancy requiring treatment in the prior 6 months
- •Inability to return for study procedures
- •Inability to obtain consent
结局指标
主要结局
Structural/functional MRI dependent measures
时间窗: 2-5 months after hospital discharge
cerebral blood flow
次要结局
未报告次要终点