- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04732650
Real World Difference After Changing Medication From Nonselective to Selective Endothelin Receptor Antagonist in Stable Eisenmenger Syndrome
Real World Difference After Changing Medication From Nonselective to Selective Endothelin Receptor Antagonist in Stable Eisenmenger Syndrome: Observational Study
Study Overview
Status
Conditions
Detailed Description
Endothelin receptor antagonist is an established class of targeted therapy for pulmonary arterial hypertension (PAH). Nonselective ERA, Bosentan was the first approved ERA for PAH. Selective ERA, Ambrisentan was also approved for PAH treatment consequently. Although non-selective and selective ERA are both effective in clinical trials, there is no direct comparison for non-selective and selective ERA. Furthermore, approval study for both non-selective and selective ERA did not include the PAH associated with congenital heart disease (PAH-CHD) with significant shunt including Eisenmenger syndrome. Approval study for Ambrisentan;ARIES-1 and ARIES-2 trials also did not include the PAH-CHD In Korea, Bosentan was approved in 2003 and Ambrisentan was approved in 2009 for idiopathic PAH. Bosentan was also approved for PAH-CHD, however, Amrisentan was not because of limited data for PAH-CHD. Therefore, Bosentan was the only ERA covered by public health insurance since 2018 for PAH-CHD. Recently, Amrisentan was also approved for PAH associated with congenital heart disease including Eisenmger syndrome. And, there is a need for changing medication from double pill medication to once-daily dose medication because of patient's compliance.
PAH associated with CHD includes the group with significant shunt vs without shunt (s/p corrected state). When there is a shunt flow, change in pulmonary vascular resistance (PVR) and cardiac output can be a modulator of shunt flow, thus impact of pulmonary vasodilator on hemodynamics can be different from PAH without shunt. However, there is a limited data for changing ERA from non-selective to selective ERA. Our patients population can be interesting study group to understand the clinical response to changing between ERA because they are uniformly treated with non-selective ERA to selective ERA, Bosentan to Ambrisentan.
In this study, the investigators will evaluate the treatment effects and safety, patient compliance of Ambrisentan in Eisenmenger syndrome in PAH patients who have been previously treated with Bosentan.
Study Type
Enrollment (Anticipated)
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
- Patient who was scheduled to change Ambrisentan from Bosentan (prospective arm) or who already changed to Ambrisentan from Bosentan (retrospective arm)
- Presence of cyanosis with < 95 % arterial oxygen saturation (measured by transcutaneous pulse oximetry) or documented during exercise test (6 minute walk distance test or CPT stress test)
Description
Inclusion Criteria
- Age at least 18 years
- Patient who was scheduled to change Ambrisentan from Bosentan (prospective arm) or who already changed to Ambrisentan from Bosentan (retrospective arm)
- Presence of cyanosis with < 95 % arterial oxygen saturation (measured by transcutaneous pulse oximetry) or documented during exercise test (6 minute walk distance test or CPT stress test)
- Bosentan treatment more than 3months before changing to Ambrisentan and stable medication dosage for 1 month before changing medication
- Presence of PAH as diagnosed by invasive methods with Rp:Rs > 0.75 measured at rest or diagnosed by echocardiography with TR Vmax > 3.5m/s and bidirectional or right to left shunt.
One of the following diagnosis:
i) non-corrected large congenital shunting defect at atrial, ventricular or arterial level: Partial anomalous venous return, atrial septal defect, ventricular septal defect, atrioventricular cushion defect, persistent ductus arteriosus, or a combination of these.
ii) Surgically corrected shunting defect (diagnoses as above) with significant residual defect iii) Other diagnoses with univentricular physiology/haemodynamics.
Exclusion Criteria
- pregnancy or lactation
- women of child-bearing age who are sexually active without practicing reliable methods of contraception
- any disease or impairment that, in the opinion of the investigator, excludes a subject from participation
- substance abuse (alcohol, medicines, drugs)
- acute decompensated heart failure within 7 days before the invasive procedure
- significant anemia (Hb < 9.0 g/dl)
- decompensated symptomatic polycythaemia
- significant impairment of hepatic function (Child Pugh class C)
- Significant left ventricular diseases (LV EF < 45%)
- significant valvular diseases other than tricuspid or pulmonary regurgitation ( mitral or aortic valvular impairment more than moderate degree)
- pericardial constriction
- history of stroke, myocardial infarction or life-threatening arrhythmia within 6 months before screening
- bronchopulmonary dysplasia or other chronic severe lung diseases
- history of significant pulmonary embolism (in situ thromboembolism with optimal anticoagulation can be enrolled)
- other relevant diseases (e.g. HIV infection)
- trisomy 21
- Unstable medication, recent changes in dosage regimen
- Other medication with vascular action
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change of WHO FC
Time Frame: change from baseline to 6 months
|
WHO functional class I, II, III, IV.
|
change from baseline to 6 months
|
Changes in Borg dyspnea scale
Time Frame: change from baseline to 6 months
|
scale 0 -10
|
change from baseline to 6 months
|
TAPSE (TTE measure)
Time Frame: change from baseline to 6 months
|
mm pericardial effusion(presence, absence), RA size(mm), RV strain(%)
|
change from baseline to 6 months
|
pericardial effusion (TTE measure)
Time Frame: change from baseline to 6 months
|
presence, or absence
|
change from baseline to 6 months
|
RA size (TTE measure)
Time Frame: change from baseline to 6 months
|
mm
|
change from baseline to 6 months
|
RV strain(TTE measure)
Time Frame: change from baseline to 6 months
|
change from baseline to 6 months
|
|
6-minute walk distances (6MWT)
Time Frame: change from baseline to 6 months
|
m
|
change from baseline to 6 months
|
blood pressure at rest (SBP and DBP)
Time Frame: change from baseline to 6 months
|
mmHg
|
change from baseline to 6 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
adverse drug response
Time Frame: baseline, 12 week, 24 week, till 6 months if available.
|
any adverse drug response
|
baseline, 12 week, 24 week, till 6 months if available.
|
Collaborators and Investigators
Sponsor
Collaborators
Publications and helpful links
General Publications
- Galie N, Beghetti M, Gatzoulis MA, Granton J, Berger RM, Lauer A, Chiossi E, Landzberg M; Bosentan Randomized Trial of Endothelin Antagonist Therapy-5 (BREATHE-5) Investigators. Bosentan therapy in patients with Eisenmenger syndrome: a multicenter, double-blind, randomized, placebo-controlled study. Circulation. 2006 Jul 4;114(1):48-54. doi: 10.1161/CIRCULATIONAHA.106.630715. Epub 2006 Jun 26.
- Bever CT Jr, Asofsky R. Augmented IgG anti-acetylcholine receptor response following chronic penicillamine administration. J Neuroimmunol. 1991 Dec;35(1-3):131-7. doi: 10.1016/0165-5728(91)90168-7.
- Gatzoulis MA, Beghetti M, Galie N, Granton J, Berger RM, Lauer A, Chiossi E, Landzberg M; BREATHE-5 Investigators. Longer-term bosentan therapy improves functional capacity in Eisenmenger syndrome: results of the BREATHE-5 open-label extension study. Int J Cardiol. 2008 Jun 23;127(1):27-32. doi: 10.1016/j.ijcard.2007.04.078. Epub 2007 Jul 20.
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2020-09-212
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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