FOB in HSCT and Leukemia Patients With Acute Respiratory Symptoms and Pulmonary Infiltrates
2017年6月8日 更新者：Northside Hospital, Inc.
A Prospective Assessment of the Diagnostic Utility of Emerging Laboratory Assessments Used in Conjunction With FOB in HSCT and Leukemia Patients With Acute Respiratory Symptoms and Pulmonary Infiltrates
Pulmonary infiltrates frequently complicate the care of hematopoietic stem cell transplant (HSCT) and leukemia patients. Bronchoalveolar lavage (BAL) is frequently used to evaluate new pulmonary infiltrates in this population, however utility is limited by a historically low diagnostic yield for infection.
In an effort to improve diagnostic yields, this study will complete a Fiberoptic Bronchoscopy (FOB) within 8 hours of radiographic documentation of pulmonary infiltrates, prior to initiating new antibiotic therapy. To further improve detection of microbiological pathogens, the study will utilize PCR testing with rapid turnaround time to detect atypical pneumonia (M pneumoniae, C. Pneumonia, Legionella species, and respiratory viruses) and aspergillosis.
研究概览
详细说明
Proper diagnosis and prompt treatment favorably impacts survival in the post transplant setting, but is often difficult and frequently results in inappropriate or late therapy.
Low yields may be linked with empiric antibody therapy begun prior to the procedure, delayed time to procedure, procedure technique, the presence of graft versus host disease (GVHD), neutropenia, and diffuse infiltrates (as opposed to localized infiltrates or focal masses and nodules).
One recent study found that early FOBs (less than or equal to 4 days between detection of pulmonary infiltrates and FOB) were 2.5 times more likely to establish a diagnosis of pneumonia compared to late examinations.
Delaying this procedure(greater than 5 days between detection of pulmonary infiltrates and FOB) was associated with drug resistant organisms, polymicrobial infections, and worsened patient prognosis.
研究类型
介入性
注册 (实际的)
49
阶段
- 不适用
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
-
-
Georgia
-
Atlanta、Georgia、美国、30342
- Northside Hospital
-
-
参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 至 80年 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
描述
Inclusion Criteria:
- Autologous or allogeneic stem cell patients with new acute respiratory symptoms or pulmonary infiltrates
- leukemia patients with new acute respiratory symptoms or pulmonary infiltrates thought to be unrelated to disease
Exclusion Criteria:
- Patients unwilling to undergo FOB
- Patients unable to undergo FOB due to clinical status
- Patients unable to undergo FOB within 8 hours of radiographic report of pneumonia
- Patients unable to wait until completion of FOB to implement antibiotic changes
- Adults unable to provide informed consent
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 主要用途：治疗
- 分配：不适用
- 介入模型：单组作业
- 屏蔽：无（打开标签）
武器和干预
参与者组/臂 |
干预/治疗 |
|---|---|
|
实验性的：Laboratory testing
All patients will receive the lab testing on bronchoscopy specimens
|
Bronchoalveolar lavage (BAL) with subsequent testing for pathogens
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Number of Patients With Positive Culture or Molecular Results After Brochoscopy
大体时间：30 days
|
To determine the diagnostic yield related to fiberoptic bronchoscopy (FOB) with bronchoalveolar lavage (BAL) in hematopoietic stem cell transplant (HSCT) and leukemia patients with acute respiratory symptoms and pulmonary infiltrates utilizing both current standard of care microbiology testing and emerging molecular genetic laboratory assessments.
|
30 days
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Number of Patients With Positive CT Result
大体时间：30 days
|
To correlate specific types of pulmonary infiltrates (focal, multifocal, or diffuse interstitial or alveolar infiltrates) with microbiological findings. Patients were evaluated by changes on the CT and categorized as follows:
|
30 days
|
|
Number of Participants With Positive Bacterial Results by PCR
大体时间：24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
|
24-48 hours
|
|
Number of Patients With Positive Fungal Results by PCR
大体时间：24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
|
24-48 hours
|
|
Number of Participants With Positive Viral Results by PCR
大体时间：24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
|
24-48 hours
|
|
Number of Participants With Positive Myocbacteria Results by Culture
大体时间：24-48 hours
|
To describe the microbiological findings in HSCT and leukemia patients with fever, respiratory symptoms, and pulmonary infiltrates
|
24-48 hours
|
合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：H. Kent Holland, MD、Blood and Marrow Transplant Group of Georgia
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
一般刊物
- Mandell LA, Wunderink RG, Anzueto A, Bartlett JG, Campbell GD, Dean NC, Dowell SF, File TM Jr, Musher DM, Niederman MS, Torres A, Whitney CG; Infectious Diseases Society of America; American Thoracic Society. Infectious Diseases Society of America/American Thoracic Society consensus guidelines on the management of community-acquired pneumonia in adults. Clin Infect Dis. 2007 Mar 1;44 Suppl 2(Suppl 2):S27-72. doi: 10.1086/511159. No abstract available.
- Shannon VR, Andersson BS, Lei X, Champlin RE, Kontoyiannis DP. Utility of early versus late fiberoptic bronchoscopy in the evaluation of new pulmonary infiltrates following hematopoietic stem cell transplantation. Bone Marrow Transplant. 2010 Apr;45(4):647-55. doi: 10.1038/bmt.2009.203. Epub 2009 Aug 17.
- Hardak E, Yigla M, Avivi I, Fruchter O, Sprecher H, Oren I. Impact of PCR-based diagnosis of invasive pulmonary aspergillosis on clinical outcome. Bone Marrow Transplant. 2009 Nov;44(9):595-9. doi: 10.1038/bmt.2009.65. Epub 2009 Mar 23.
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始
2011年3月1日
初级完成 (实际的)
2015年10月1日
研究完成 (实际的)
2017年4月1日
研究注册日期
首次提交
2011年3月1日
首先提交符合 QC 标准的
2011年4月4日
首次发布 (估计)
2011年4月5日
研究记录更新
最后更新发布 (实际的)
2017年7月11日
上次提交的符合 QC 标准的更新
2017年6月8日
最后验证
2017年6月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.