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Efficacy and Tolerability of Subcutaneously Administered Treprostinil Sodium in Patients With Severe (Non-operable) Chronic Thromboembolic Pulmonary Hypertension (CTREPH) (CTREPH)

2022年5月17日 更新者：SciPharm SàRL

A Double Blind Controlled Clinical Study to Investigate the Efficacy and Tolerability of Subcutaneous Treprostinil Sodium in Patients With Severe Non-operable Chronic Thromboembolic Pulmonary Hypertension (CTREPH)

The primary purpose of this study is to determine the effect on six-minute walking test (6MWT) distance after 24 weeks treatment with subcutaneous (SC) Treprostinil Sodium in patients with Severe (inoperable) Chronic Thromboembolic Pulmonary Hypertension.

研究概览

地位

地位

指示当前招聘状态或扩展访问状态。
完全的

条件

条件

正在研究的疾病、紊乱、综合征、疾病或损伤。在 ClinicalTrials.gov 上，条件还可能包括其他与健康相关的问题，例如寿命、生活质量和健康风险。

干预/治疗

干预/治疗

作为临床研究重点的过程或行动。干预措施包括药物、医疗设备、程序、疫苗和其他处于研究阶段或已经可用的产品。干预措施还可以包括非侵入性方法，例如教育或调整饮食和锻炼。

详细说明

Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by non-resolving organized thromboembolic obstructing the pulmonary vascular bed. These thrombi are resistant to thrombolytic therapy and chronic plasmatic anticoagulation. An increase in pulmonary vascular resistance (PVR), right ventricular overload, and eventually right ventricular failure ensue.

The treatment of choice for CTEPH is pulmonary endarterectomy (PEA), providing a potential cure for the disease. However, about 50 % of patients are not candidates for surgery, mainly because of distal location of thromboemboli. Despite recent advances in the treatment of pulmonary arterial hypertension (PAH), medical treatments have not been recommended for inoperable CTEPH, because of the concept that a predominantly major vessel obstructive arteriopathy would not be suitable for vasodilators. Furthermore, a major drawback of i.v. prostacyclin therapy is the need for a permanent central venous access that increases the risk of infection (0.22-0.68 per patient per year), thrombosis and new major vessel thromboembolism.

研究类型

研究类型

描述临床研究的性质。研究类型包括介入性研究（也称为临床试验）、观察性研究（包括患者登记）和扩展访问。
介入性

注册 (实际的)

注册

临床研究的参与者人数。 “预期”入组人数是研究人员进行研究所需的目标参与者人数。
105

阶段

阶段

根据美国食品和药物管理局 (FDA) 制定的定义，研究药物或生物制品的临床试验阶段。阶段基于研究的目标、参与者的数量和其他特征。有五个阶段：早期第 1 阶段（以前列为第 0 阶段）、第 1 阶段、第 2 阶段、第 3 阶段和第 4 阶段。不适用用于描述没有 FDA 定义的阶段的试验，包括设备试验或行为干预。
  • 第三阶段

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

  • 奥地利
      • Linz、奥地利、4020
        • Krankenhaus der Elisabethinen
      • Vienna、奥地利
        • Medical University of Vienna AKH - Division Cardiology
  • 德国
      • Dresden、德国
        • Medical University Carl Gustav Carus Medizinische Klinik und Poliklinik I Medizinische Fakultät der Technischen Universität Dresden
  • 捷克语
      • Prague、捷克语
        • II. interní klinika Všeobecná fakultní nemocnice
  • 波兰
      • Krakow、波兰、31-202
        • Department of Cardiac and Vascular Diseases Centre for Rare Cardiovascular Diseases John Paul II Hospital
      • Otwock、波兰、05-400
        • NZOZ Europejskie Centrum Zdrowia Otwock

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

资格标准

想要参加临床研究的人必须满足的关键要求或他们必须具备的特征。资格标准包括纳入标准（一个人参与研究所必需的）和排除标准（阻止一个人参与）。资格标准的类型包括一项研究是否接受健康志愿者、是否有年龄或年龄组要求，或是否受性别限制。

适合学习的年龄

18年 至 100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

  1. Subject must be competent to understand the information given in the written informed consent and from the investigator and must sign and date the informed consent prior to any study mandated procedure.
  2. Subject must be at least 18 years of age and can be of any ethnical origin
  3. Women of child bearing potential must be surgically sterile or postmenopausal (amenorrhea for at least 12 months) or using an acceptable form of contraception. Reliable contraception is defined as a method which results in a low failure rate, i.e., less than 1% per year when used correctly such as, implants, injectables, oral contraceptive medications, sexual abstinence, or a vasectomised partner.

  4. Subject must have a current diagnosis of CTEPH, as defined by the following criteria:

    • A test result of perfusion scintigraphy and pulmonary angiography and/or multislice CT not older than 6 months, consistent with the diagnosis CTEPH. In case of recurrent PH after PEA, test results from before the surgery are acceptable if a typical specimen was harvested during PEA substantiating the diagnosis of CTEPH.
    • A right heart catheterization, not older than 6 months, consistent with the diagnosis CTEPH but specifically with a mean pulmonary artery pressure (PAPm) of > 25 mmHg, and a PVR of > 300 dyn.s.cm-5
    • At least three months of effective anticoagulation therapy (without improvement / to exclude subacute pulmonary emboli)

  5. Subject must have CTEPH classified as severe, as defined by the following criteria:

    • An un-encouraged 6MWT distance of between 150 and 400 meters
    • Classification in the WHO/New York Heart Association (NYHA) functional class III or IV

  6. The subject must not be suitable to undergo a PEA and is therefore defined as non-operable, due to at least one of the following reasons:

    • Clot is not accessible
    • Discrepancy between severity of PH and morphologic lesion
    • Subject is not a good surgical candidate for other reasons:

    PVR > 1500 dynes.s.cm-5 Age Comorbidity No functional lung parenchyma

    • Unsuccessful PEA in the past with residual/recurrent CTEPH
    • No consent for PEA given by subject
  7. Subject must be willing and able to follow all study procedures

Exclusion:

  1. Subject with any form of pulmonary arterial hypertension or any disease known to cause PAH (WHO Group I)
  2. Subjects with a total lung capacity (TLC) of < 70% predicted or a forced expiratory volume/forced vital capacity (FEV1/FVC < 50%)
  3. Subject who received any prostanoids, within the 30 days before screening or be scheduled to receive prostanoids during the course of the study
  4. Subject with a new type of chronic therapy (a different category of vasodilator or diuretic) for PAH added within the last month, except anticoagulants
  5. Subject with an increased risk for hemorrhage or stroke or with a major cardiovascular event during the past 6 months.
  6. Unstable subjects for any reason (according to the investigators discretion)
  7. Subject who received any investigational medication within 30 days prior to the screening visit of this study or be scheduled to receive another investigational drug during the course of this study
  8. Subject with a known intolerance to any drug relevant for this trial, especially to Treprostinil sodium or prostanoids
  9. Subject with a history or suspicion of non compliance
  10. Subject who has any musculoskeletal disease or any other disease that would limit ambulation
  11. Subject with other cardiovascular, liver, renal, hematologic, gastrointestinal immunologic, endocrine, metabolic, or central nervous system disease that, in the opinion of the investigator, may adversely affect the safety of the subject and /or efficacy of the study drug or limit the lifespan of the subject
  12. Female who is considering pregnancy or who is pregnant and/or lactating
  13. Subject who is an investigator or any other team member involved directly or indirectly in the conduct of the clinical study.
  14. Subject who is an inmate of a psychiatric ward, prison or is suspected not to be able to give consent of his free will

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：随机化
  • 介入模型：并行分配
  • 屏蔽：四人间

武器和干预

参与者组/臂

参与者组/臂

根据试验方案，接受特定干预/治疗或不接受干预的临床试验参与者组或亚组。
干预/治疗

干预/治疗

作为临床研究重点的过程或行动。干预措施包括药物、医疗设备、程序、疫苗和其他处于研究阶段或已经可用的产品。干预措施还可以包括非侵入性方法，例如教育或调整饮食和锻炼。
有源比较器：Treprostinil sodium low dose - Arm I

Arm I (low dose):

Subject was treated with a low dose of Treprostinil sodium. Dose was escalated to an approximate target dose of 3 ng/kg/min after the first 12 weeks and was kept stable for another 12 weeks.

Due to the predefined infusion rate setting schedule an interim dose of up to 6 ng/kg/min could be reached for few days at the end of the phases 1,2 and 3.

This depended on the patient's exact weight and is caused by the limited infusion rate setting possibility of the infusion pump.
药品：Treprostinil sodium
实验性的：Treprostinil sodium high dose - Arm II

Subject was treated with a low dose of Treprostinil sodium. Dose was escalated to an approximate target dose of 3 ng/kg/min after the first 12 weeks and kept stable for another 12 weeks.

Due to the predefined infusion rate setting schedule an interim dose of up to 6 ng/kg/min could be reached for few days at the end of the phases 1,2 and 3.

This depended on the patient's exact weight and is caused by the limited infusion rate setting possibility of the infusion pump.
药品：Treprostinil sodium

研究衡量的是什么？

主要结果指标

主要结果指标

在临床研究的方案中，对于评估干预/治疗的效果最重要的计划结果测量。大多数临床研究有一项主要结果指标，但有些研究有不止一项。
结果测量
措施说明
大体时间
Change in 6-minute Walk Test Distance After 24 Weeks
大体时间：Baseline and 24 weeks

To determine the effect of subcutaneous Treprostinil sodium on 6-minute walk test distance after 24 weeks in patients with severe non-operable chronic thromboembolic pulmonary hypertension severe (inoperable) Chronic Thromboembolic Pulmonary Hypertension

Time frame of the 6-minute walk test: The 6-minute walk test was conducted at the following visits:

  • baseline (day 1)
  • Visit 6 (day 168)

In case of missing values, Last-Observation-Carried-Forward imputation method was used. In such cases values documented at Visit 4 (day84) were used.
Baseline and 24 weeks

次要结果测量

次要结果测量

在临床研究的方案中，计划的结果测量值在评估干预效果时不如主要结果测量值重要，但仍然值得关注。大多数临床研究有不止一项次要结果指标。
结果测量
措施说明
大体时间
Number of Participants With Clinical Worsening
大体时间：12 weeks and 24 weeks

Clinical worsening defined as a decrease of 6-minute walk test distance of more than 20% from baseline due to Chronic Thromboembolic Pulmonary Hypertension, decrease of New York Heart Association functional class, hospitalization with the requirement for additional Pulmonary Hypertension specific treatment and/or death due to worsening Chronic Thromboembolic Pulmonary Hypertension.

Clinical Worsening was assessed after 12 weeks and 24 weeks, participants experiencing clinical worsening at any time-point are reported.
12 weeks and 24 weeks
Effect on Maximal Borg Score During 6-minutes Walk Test
大体时间：Baseline and 24 weeks

The Borg scale was used for rating of dyspnea during 6-minutes walk test. The scale is defined from 0 to > 10 (upper bound) (0 = NOTHING AT ALL; 0.5 = VERY VERY SLIGHT (just noticeable); 1 = VERY SLIGHT; 2 = SLIGHT; 3 = MODERATE; 4 = SOMEWHAT SEVERE; 5 = SEVERE; 6-9 = VERY SEVERE; 10 = VERY VERY SEVERE (almost maximum); >10 MAXIMUM).

As can be seen with the scale, the higher scale values represent a worse outcome.

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 48 patients randomized to high dose group and 48 patients in low dose group.
Baseline and 24 weeks
Change in WHO/NYHA (World Health Organization - New York Heart Association) Functional Class
大体时间：Baseline and 24 weeks

Class I - Patients with pulmonary hypertension but without resulting limitation of physical activity. Ordinary physical activity does not cause undue dyspnea or fatigue, chest pain or near syncope.

Class II - Patients with pulmonary hypertension resulting in slight limitation of physical activity. They are comfortable at rest. Ordinary physical activity causes undue dyspnea or fatigue, chest pain or near syncope.

Class III - Patients with pulmonary hypertension resulting in marked limitation of physical activity. They are comfortable at rest. Less than ordinary activity causes undue dyspnea or fatigue, chest pain or near syncope

Class IV - Patients with pulmonary hypertension in the inability to carry out any physical activity without symptoms. These patients manifest signs of right heart failure. Dyspnea and/or fatigue may even be present at rest. Discomfort is increased by any physical activity.
Baseline and 24 weeks
Effect on Quality of Life by the MINNESOTA Questionnaire
大体时间：Baseline and 24 weeks

This questionnaire is composed of 21 questions relating to limitations in lifestyle associated with Heart Failure. Respondents use a 5-point scale that ranges from 0 (none) to 5 (too much), with a score of 0 representing no limitation and a score of 5 representing maximum limitation. The change in individual score sum was evaluated and is displayed in the results, with a possible range of 0-105. Higher values indicate more limitations in Quality of Life.

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 50 patients randomized to high dose group and 46 patients in low dose group.
Baseline and 24 weeks
Effect on N-terminal Pro-BNP Levels
大体时间：Baseline and 24 weeks

baseline values, assessment after 12 and 24 weeks

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 46 patients randomized to high dose group and 46 patients in low dose group.
Baseline and 24 weeks
Effect on Hemodynamic Parameter (PVR - Pulmonary Vascular Resistance)
大体时间：Baseline and 24 weeks

baseline values, assessment after 24 weeks

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 48 patients randomized to high dose group and 47 patients in low dose group.
Baseline and 24 weeks
Effect on Hemodynamic Parameter (CI - Cardiac Index)
大体时间：Baseline and 24 weeks

baseline values, assessment after 24 weeks

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 48 patients randomized to high dose group and 47 patients in low dose group.
Baseline and 24 weeks
Effect on Hemodynamic Parameter (CO - Cardiac Output)
大体时间：Baseline and 24 weeks

baseline values, assessment after 24 weeks

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 48 patients randomized to high dose group and 47 patients in low dose group.
Baseline and 24 weeks
Effect on Hemodynamic Parameter (mPAP - Mean Pulmonary Arterial Pressure)
大体时间：Baseline and 24 weeks

baseline values, assessment after 24 weeks

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 47 patients randomized to high dose group and 47 patients in low dose group.
Baseline and 24 weeks
Effect on Hemodynamic Parameter (mRap - Mean Right Atrial Pressure)
大体时间：Baseline and 24 weeks

baseline values, assessment after 24 weeks

As no imputation rule applied only full-data sets were evaluated. Complete data sets were available for 48 patients randomized to high dose group and 47 patients in low dose group.
Baseline and 24 weeks
Effect on Signs & Symptoms of the CTEPH
大体时间：Baseline and 24 weeks
baseline values, assessment after 24 weeks
Baseline and 24 weeks

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。

赞助

赞助

发起研究并有权和控制研究的组织或个人。
SciPharm SàRL

调查人员

调查人员

参与临床研究的研究人员。相关术语包括中心首席研究员、中心副研究员、研究主席、研究主管和研究首席研究员。
  • 首席研究员：Irene Lang, MD、Medical University Vienna

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

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

学习开始

第一位参与者参加临床研究的实际日期。 “预期”研究开始日期是研究人员认为将成为研究开始日期的日期。
2009年3月1日

初级完成 (实际的)

初级完成

临床研究的最后一名参与者接受检查或接受干预以收集主要结果测量的最终数据的日期。临床研究是否根据方案结束或被终止不影响该日期。对于具有多个不同完成日期的主要结果测量的临床研究，该术语是指完成所有主要结果测量的数据收集的日期。 “预期”主要完成日期是研究人员认为将成为研究主要完成日期的日期。
2016年11月1日

研究完成 (实际的)

研究完成

临床研究中最后一位参与者接受检查或接受干预/治疗以收集主要结局指标、次要结局指标和不良事件（即最后一位参与者的最后一次就诊）的最终数据的日期。 “预期”研究完成日期是研究人员认为将成为研究完成日期的日期。
2021年4月1日

研究注册日期

首次提交

首次提交

研究发起人或研究者首次向 ClinicalTrials.gov 提交研究记录的日期。在首次提交日期和记录在 ClinicalTrials.gov 上的可用性（首次发布日期）之间通常会有几天的延迟。
2011年8月12日

首先提交符合 QC 标准的

首先提交符合 QC 标准的

研究发起人或研究者首次提交符合国家医学图书馆 (NLM) 质量控制 (QC) 审查标准的研究记录的日期。在满足 NLM 的 QC 审查标准之前，发起人或研究者可能需要修改和提交研究记录一次或多次。申办者或研究者有责任确保研究记录符合 NLM QC 审查标准。
2011年8月12日

首次发布 (估计)

首次发布

在国家医学图书馆 (NLM) 质量控制 (QC) 审查结束后，研究记录首次在 ClinicalTrials.gov 上可用的日期。研究发起人或研究者提交研究记录的日期与首次发布日期之间通常会有几天的延迟。
2011年8月15日

研究记录更新

最后更新发布 (实际的)

最后更新发布

在 ClinicalTrials.gov 上提供研究记录更改的最近日期。研究发起人或研究者向 ClinicalTrials.gov 提交变更的时间（最后更新提交日期）和最后更新发布日期之间可能会有延迟。
2022年6月7日

上次提交的符合 QC 标准的更新

上次提交的符合 QC 标准的更新

研究发起人或研究者提交符合国家医学图书馆 (NLM) 质量控制 (QC) 审查标准的研究记录更改的最近日期。申办者或研究者有责任确保研究记录符合 NLM QC 审查标准。
2022年5月17日

最后验证

最后验证

研究发起人或研究者确认 ClinicalTrials.gov 上的临床研究信息准确且最新的最近日期。如果一项研究的招募状态为招募；尚未招聘；或活跃，未在过去 2 年内确认招募，该研究的招募状态显示为未知。
2022年5月1日

更多信息

与本研究相关的术语

其他相关的 MeSH 术语

其他研究编号

其他研究编号

由研究的发起人、资助者或其他人分配给临床研究的标识符或 ID 号，而不是 NCT 号。这些编号可能包括来自其他试验登记处的唯一标识符和美国国立卫生研究院的资助编号。
  • 116-02

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.

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