A Pilot Study of 18FDG-PET Imaging to Detect Changes in Airways Inflammation in Cystic Fibrosis Patients After Treatment for a Pulmonary Exacerbation
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- Change in airways inflammation detected by 18FDG -PET from baseline
研究概览
简要总结
The purpose of this study is to determine if 18Fluorodeoxyglucose (FDG) Positron Emission Tomography (PET) imaging can detect changes in airways inflammation in Cystic Fibrosis (CF) patients after treatment for a pulmonary exacerbation.
详细描述
Neutrophils play a key role in the pathogenesis of CF lung disease. We know that neutrophilic inflammation is related to a decline in pulmonary function. Therefore, early anti-inflammatory intervention is an opportunity to slow this irreversible pulmonary destruction. However, the development of sensitive, non-invasive diagnostic tools of airways inflammation is essential to the study and implementation of anti-inflammatory therapies. Our current armentarium of measures of airways inflammation is limited. BAL is invasive and not clinically acceptable as a tool for the serial measurement of inflammation. Sputum samples are highly variable and not reliable.
18FDG-PET is a promising tool because it is non invasive, has been shown to quantify the amount and location of neutrophilic inflammation and has the potential to be used to track inflammation over time. Therefore, the goal of this research study is to evaluate the ability of 18FDG -PET imaging to detect changes in airways inflammation in CF patients in response to conventional treatment for a pulmonary exacerbation
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 6 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Diagnosis of CF as defined by two or more clinical features of CF and a documented sweat chloride > 60mEq/L by quantitative pilocarpine iontophoresis test or a genotype showing two well characterized disease causing mutations
- •Informed consent and verbal assent (as appropriate) provided by the subject's parent or legal guardian and the subject
- •Ages 6-18 and able to perform reproducible spirometry
- •Admission to the Hospital for Sick Children for a pulmonary exacerbation
排除标准
- •Inability to perform reproducible spirometry
- •Diagnosis of Cystic Fibrosis Related Diabetes (CFRD)
- •Medical instability that would preclude the ability to perform PET imaging
- •FEV1% predicted < 40%
- •The use of supplementary oxygen
- •Pregnancy or breastfeeding
- •Severe claustrophobia
研究组 & 干预措施
1
干预措施: 18-FDG (Other)
结局指标
主要结局
Change in airways inflammation detected by 18FDG -PET from baseline
时间窗: Measured at end of treatment (day 14)
次要结局
- Correlation of pre and post 18FDG-PET data with lung function (FEV1, FEF 25-75 and FVC), sputum neutrophil count and sputum free elastase(Measured at end of treatment (day 14))
研究者
Felix Ratjen
Division Head, Respiratory Medicine
The Hospital for Sick Children