此页面是自动翻译的,不保证翻译的准确性。请参阅 英文版 对于源文本。

Inhaled Aerosolized Prostacyclin for Pulmonary Hypertension Requiring Inhaled Nitric Oxide

2014年8月25日 更新者:Duke University
Acute secondary pulmonary hypertension (PH) often leads to dysfunction of the right ventricle (RV) and can be a significant cause of patient morbidity and mortality. Selective pulmonary vasodilation with inhaled nitric oxide (INO) has become the treatment of choice for this condition. The evidence supporting INO safety and efficacy under these circumstances is sparse, however, and is largely extrapolated from the use of INO in neonatal pulmonary hypertension. Moreover, the high cost and potential toxicity of INO makes the therapy far from ideal. Emerging evidence suggests that inhaled aerosolized prostacyclins such as iloprost may be a favorable alternative therapy.

研究概览

地位

终止

详细说明

Phase 1- In the original study, 3 doses of Iloprost were given. This was revised after 5 subjects were enrolled in order to study the effects of continuous delivery over a longer period of time.

Phase 2 - All remaining subjects received Iloprost as a continuous treatment.

The study was designed for an enrollment of 200 subjects and was ended early.

研究类型

介入性

注册 (实际的)

27

阶段

  • 第四阶段

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

  • 孩子
  • 成人
  • 年长者

接受健康志愿者

有资格学习的性别

全部

描述

Inclusion Criteria:

  1. Clinical evidence of pulmonary hypertension (PH) requiring INO therapy as prescribed by the attending physician.
  2. Indwelling arterial catheter.
  3. Signed informed consent

Exclusion Criteria:

  1. Clinically unstable circulatory condition requiring epinephrine > 0.1 mcg/kg/min or levophed, or already meeting treatment failure criteria (see section 5.3 below)
  2. Known hypersensitivity to prostacyclin compounds
  3. Patients receiving sildenafil or bosentan
  4. Refusal by the attending physician

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:非随机化
  • 介入模型:交叉作业
  • 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:Phase 2: Inhaled Iloprost continuous

Each subject will have a stable dose of INO therapy as established by the attending physicians for at least one hour. Initial baseline data collection will then be made.

A 20 mcg dose of Iloprost will be given initially. During this treatment there will be a nitric oxide titration to 0. Iloprost will be aerosolized continuously at a dose of 5-30mcg/hour for as long as the attending physician deems it necessary to deliver vasodilator therapy.

A 20 mcg dose of Iloprost will be given initially.
其他名称:
  • 文塔维斯
实验性的:Phase 1: Inhaled Iloprost 3 doses

Each subject will have a stable dose of INO therapy as established by the attending physicians for at least one hour. Initial baseline data collection will then be made.

A 20 mcg dose of Iloprost will be given initially. During this treatment there will be a nitric oxide titration to 0. Iloprost will be aerosolized three different times on hour apart. Thirty minutes after the last iloprost dose, INO will be added back at the previous (baseline) dose.

A 20 mcg dose of Iloprost will be given initially.
其他名称:
  • 文塔维斯

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
Percent Change in Oxygen Saturation (SpO2) From Baseline
大体时间:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Readings were taken from the medical record and the data may not have been present at the exact time frames.
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Percent Change in Oxygen Saturation (SpO2) From Baseline
大体时间:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
Change in Mean Heart Rate From Baseline
大体时间:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Mean Heart Rate From Baseline
大体时间:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
Number of Treatment Failures
大体时间:as long as subject was on drug up to approximately 24 hours

Treatment failure is defined as Central venous pressure (CVP) ≥ 20 mm Hg and any one of the following:

  1. Cardiac Index (CI) >/= 1.8 L/min/m2
  2. Administration of >/=0.1 ug/kg/min Epinephrine or Norepinephrine
  3. MAP </= 50 mmHg (or as appropriate for age in pediatrics).
  4. SvO2</= 55% (or < 45% for patients with R to L intracardiac shunting and, thus, cyanosis at baseline.}
as long as subject was on drug up to approximately 24 hours
Change in Mean Pulmonary Artery Pressure (mPAP) From Baseline
大体时间:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Mean Pulmonary Artery Pressure (mPAP) From Baseline
大体时间:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)

次要结果测量

结果测量
措施说明
大体时间
Change in Cardiac Output (CO) From Baseline
大体时间:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Cardiac Output (CO) From Baseline
大体时间:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
Change in Mean Venous Oxygen Saturation (SvO2) From Baseline
大体时间:30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
SvO2 represents an average of all the venous oxygen saturations of the various organs and tissues.
30 mins after initial dose, every 2 hours as long as subject was on drug up to approximately 24 hours
Change in Mean Venous Oxygen Saturation (SvO2) From Baseline
大体时间:dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)
dose 1 (1 hour), dose 2 (2 hour), dose 3 (3 hour), combined therapy (4.5 - 5 hour), end INO (6 - 7 hour)

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:Neil MacIntyre, MD、Duke University

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

2006年9月1日

初级完成 (实际的)

2009年1月1日

研究完成 (实际的)

2009年1月1日

研究注册日期

首次提交

2014年6月19日

首先提交符合 QC 标准的

2014年6月19日

首次发布 (估计)

2014年6月23日

研究记录更新

最后更新发布 (估计)

2014年8月26日

上次提交的符合 QC 标准的更新

2014年8月25日

最后验证

2014年6月1日

更多信息

与本研究相关的术语

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.

3
订阅