Ranolazine and Pulmonary Hypertension
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT01174173|
Recruitment Status : Completed
First Posted : August 3, 2010
Results First Posted : April 23, 2015
Last Update Posted : May 11, 2018
|Condition or disease||Intervention/treatment||Phase|
|Angina Pulmonary Arterial Hypertension||Drug: Ranolazine||Phase 3|
This study is looking to enroll patients with pulmonary hypertension (PH). PH is abnormally high blood pressure in the arteries of the lungs. It makes the right side of the heart need to work harder than normal and is usually caused by a narrowing of the small arteries of the lung. This narrowing makes it harder for the right side of the heart to circulate the blood to the lungs. Over time, the right side of the heart may become enlarged and symptoms (such as angina [chest pain] shortness of breath, fatigue, edema) begin to appear.
Ranolazine is a safe, well-tolerated, and FDA-approved medication for the treatment of chronic stable angina. Ranolazine may potentially improve blood flow to the right ventricle (RV), thereby relieving angina while simultaneously improving RV performance and contractility. This latter effect may increase stroke volume and cardiac output which could translate into benefits in exercise capacity and improved quality of life.
The purpose of this single center, non-randomized, prospective pilot study is to investigate the effects of 3 months treatment with ranolazine on pulmonary artery hemodynamics, exercise capacity and quality of life in patients with PAH and symptoms of angina or angina equivalent.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||11 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||Effects of Ranolazine in Patients With Angina Due to Right Ventricular Ischemia in Pulmonary Arterial Hypertension|
|Study Start Date :||June 2010|
|Actual Primary Completion Date :||January 2014|
|Actual Study Completion Date :||October 2014|
1000 mg PO BID
ranolazine 1000 mg PO BID for 3 months
Other Name: Ranexa
- Improve Angina Symptoms [ Time Frame: 3 months ]Assessed as average improvement in WHO Functional Class. The WHO Functional Class score ranges from 1 to 4, with higher scores indicating more impairment
- 6-Minute Walk Test [ Time Frame: 3 Months ]Improve Exercise Capacity measured by 6-Minute Walk Test
- Improve Quality of Life [ Time Frame: 3 Months ]The Kansas City Cardiomyopathy Questionnaire is a 23-item, self-administered instrument that quantifies physical function, symptoms (frequency, severity and recent change), social function, self-efficacy and knowledge, and quality of life. The scores are averaged and transformed to a range of 0-100, in which higher scores reflect better health status and was performed at the conclusion of the study.
- RV Perfusion on Cardiac MRI [ Time Frame: 3 months ]The majority of patients did not undergo cardiac MRI because it was difficult for the patients to tolerate the imaging study. Therefore, we were not able to assess change in RV perfusion.
- Absolute RV Longitudinal Strain [ Time Frame: 3 months ]Change in absolute right ventricular (RV) longitudinal strain as assessed by exercise stress echocardiography with speckle-tracking echocardiography at baseline and conclusion of the study. An increase in exercise-induced change in RV longitudinal strain between baseline to conclusion of the study is indicative of improved RV function. If absolute RV longitudinal strain increases with exercise, that is a sign that the RV is working well. If absolute RV longitudinal strain decreases with exercise, that is a sign that the RV is not working well. Therefore, between baseline and conclusion of the study, if exercise-induced change in RV strain increases that means that the RV is working better at the conclusion of the study.
- Right Ventricular Hemodynamics [ Time Frame: 3 months ]Mean pulmonary artery pressure was assessed invasively by right heart catheterization at the conclusion of the study to estimate right ventricular hemodynamics.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01174173
|United States, Illinois|
|Chicago, Illinois, United States, 60611|
|Principal Investigator:||Sanjiv Shah, MD||Northwestern University|