Efficacy and Safety of Upfront Combination of ΒΟsentan and ΤΑdalafil in Pulmonary Arterial Hypertension (BOTA-PAH)
2018年1月24日 更新者：Elpen Pharmaceutical Co. Inc.
An Observational, Non-interventional, Multicenter Study to Evaluate the Efficacy and Safety of Upfront Combination of Bosentan and Tadalafil in Pulmonary Arterial Hypertension in Greek Patients
The development of disease-targeted drugs for the treatment of pulmonary arterial hypertension (PAH) has significantly improved within the last years.
Combining drug products with different mechanisms of action such as Endothelin-Receptor-Antagonists (ERAs) and Phosphodiesterase-Type-5-inhibitors (PDE-5-Inhibitors) has become increasingly important for the treatment of PAH.
Recently, the results of the AMBITION study reported that an upfront combination treatment of ambrisentan and tadalafil immediately after diagnosis leads to a delayed disease progression.
On the other hand, the sequential combination of bosentan and sildenafil did not show a similar positive clinical effect and this was attributed to a negative clinically relevant pharmacodynamic drug-drug interaction.
Although, recent guidelines have extrapolated that initial upfront combination treatment follows a class effect in terms of efficacy and safety, there is an imperative need to support this notion with other combinations of ERAs and PDE-5-Inhibitors.
研究概览
地位
撤销
条件
详细说明
The primary objective of BOTA study is to compare the change in clinical and hemodynamic measures of PAH after the initiation of first line combination therapy with bosentan and tadalafil in adult patients with PAH. The safety and tolerability of first line combination therapy will also be evaluated.
In patients with PAH initial upfront combination treatment with bosentan and tadalafil
Improves
- Exercise capacity as expressed by distance walked in six minute walk test and WHO functional class
- Hemodynamics in terms of pulmonary vascular resistance (PVR), mean pulmonary artery pressure (mPAP) reduction and cardiac index (CI) elevation
- Quality of life
- NTproBNP serum levels
- Echocardiographic prognostic parameters such as right atrial area and presence of pericardial effusion.
Is safe as assessed by
- Liver function markers such as serum SGOT and SGPT levels
- Hemoglobin levels
研究类型
观察性的
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 75年 (成人、年长者)
接受健康志愿者
不适用
有资格学习的性别
全部
取样方法
非概率样本
研究人群
Newly diagnosed patients with PAH
描述
Inclusion Criteria:
Male or females between 18 to 75 years of age at inclusion
Diagnosis of PAH due to the following:
- Idiopathic Primary Pulmonary Arterial Hypertension (IPAH)
- Hereditary PAH
- PAH secondary to connective tissue disease
- PAH diagnosis confirmed by right heart catheterization performed within 3 months prior to study enrolment Subjects must weigh at least 40 kg at inclusion Subject must have a current diagnosis of being in World Health Organisation (WHO) Functional Class II or III.
Treatment PAH naïve subjects PAH documented by
- mPAP ≥25mmHg,
- pulmonary capillary wedge pressure (PCWP) or
- left ventricular end-diastolic pressure (LVEDP) ≤15mmHg and
- PVR ≥3 Wood Units. Subject must walk a distance of ≥125m and ≤500m at the screening visit
Exclusion Criteria:
- History of pulmonary embolism
- No prior treatment with PDE-5 inhibitors
- History of chronic lung disease / restrictive lung disease (eg, chronic obstructive pulmonary disease (COPD) or scleroderma) with impairment of lung function
- Current treatment with nitrates or nitric oxide
- Significant (ie, >2+) valvular disease other than tricuspid regurgitation or pulmonary regurgitation
- History of cardiac arrest, respiratory arrest, hemodynamic collapse, CPR, ventricular tachycardia, ventricular fibrillation, or uncontrolled atrial fibrillation
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
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 |
|---|---|---|
|
Change From Baseline in the N-Terminal Pro-B-Type Natriuretic Peptide at Month 6
大体时间：6 months
|
N-Terminal Pro-B-Type Natriuretic Peptide (NT-proBNP) is a surrogate marker of heart failure.
The geometric mean ratio will be calculated as the ratio between the month 6 value and the Baseline value and presented as percent change = 100 * (geometric mean ratio - 1).
The Baseline value is the last value prior to administration of study drug; this may be prior to or on the day of study drug initiation.
|
6 months
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Number of Participants With First Adjudicated Clinical Failure (CF) Event
大体时间：6 months
|
Hospitalisation for Worsening PAH, Disease Progression, Unsatisfactory Clinical Response
|
6 months
|
|
Time to first clinical worsening (TTCW) event
大体时间：6 months
|
TTCW defined as the number of days between first dose of study drug and the occurrence of a predefined clinical worsening event.
|
6 months
|
|
Percentage of Participants With a Satisfactory Clinical Response at Month 6
大体时间：6 months
|
A satisfactory clinical response at month 6 is defined as a participant who meets all of the following criteria: 10% improvement in 6MWD compared with Baseline;
|
6 months
|
|
Change From Baseline in the World Health Organization Functional Class at month 6
大体时间：6 months
|
Change From Baseline in the World Health Organization Functional Class Time Frame: Baseline and Month 6 The WHO Functional Class (FC) indicates the severity of PAH and is an adaptation of the New York Heart Association classification.
|
6 months
|
|
Change From Baseline in the 6 Minute Walk Distance (6MWD) Test at month 6
大体时间：6 months
|
Change From Baseline in the 6 Minute Walk Distance (6MWD) Test at month 6 MWD is the distance a participant can walk in 6 minutes. The 6-minute walk distance (6MWD) test measures the distance that a participant can walk in a period of 6 minutes. |
6 months
|
|
Change From Baseline in Borg Dyspnea Index at month 6
大体时间：6 months
|
Borg Dyspnea Index (BDI) indicates the degree of breathlessness after completion of the 6 minute walk test.
|
6 months
|
|
Quality of Life
大体时间：6 moths
|
Change in emPHasis-10 questionnaire score
|
6 moths
|
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。
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
- Galie N, Humbert M, Vachiery JL, Gibbs S, Lang I, Torbicki A, Simonneau G, Peacock A, Vonk Noordegraaf A, Beghetti M, Ghofrani A, Gomez Sanchez MA, Hansmann G, Klepetko W, Lancellotti P, Matucci M, McDonagh T, Pierard LA, Trindade PT, Zompatori M, Hoeper M; ESC Scientific Document Group. 2015 ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension: The Joint Task Force for the Diagnosis and Treatment of Pulmonary Hypertension of the European Society of Cardiology (ESC) and the European Respiratory Society (ERS): Endorsed by: Association for European Paediatric and Congenital Cardiology (AEPC), International Society for Heart and Lung Transplantation (ISHLT). Eur Heart J. 2016 Jan 1;37(1):67-119. doi: 10.1093/eurheartj/ehv317. Epub 2015 Aug 29. No abstract available.
- Galie N, Barbera JA, Frost AE, Ghofrani HA, Hoeper MM, McLaughlin VV, Peacock AJ, Simonneau G, Vachiery JL, Grunig E, Oudiz RJ, Vonk-Noordegraaf A, White RJ, Blair C, Gillies H, Miller KL, Harris JH, Langley J, Rubin LJ; AMBITION Investigators. Initial Use of Ambrisentan plus Tadalafil in Pulmonary Arterial Hypertension. N Engl J Med. 2015 Aug 27;373(9):834-44. doi: 10.1056/NEJMoa1413687.
- McLaughlin V, Channick RN, Ghofrani HA, Lemarie JC, Naeije R, Packer M, Souza R, Tapson VF, Tolson J, Al Hiti H, Meyer G, Hoeper MM. Bosentan added to sildenafil therapy in patients with pulmonary arterial hypertension. Eur Respir J. 2015 Aug;46(2):405-13. doi: 10.1183/13993003.02044-2014. Epub 2015 Jun 25.
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 (预期的)
2017年12月1日
初级完成 (预期的)
2019年12月1日
研究完成 (预期的)
2019年12月1日
研究注册日期
首次提交
2017年4月28日
首先提交符合 QC 标准的
2017年5月2日
首次发布 (实际的)
2017年5月3日
研究记录更新
最后更新发布 (实际的)
2018年1月26日
上次提交的符合 QC 标准的更新
2018年1月24日
最后验证
2017年8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.