Pulmonary Hypertension Clinical Trial
Official title:
Evaluation of Regional Myocardial Perfusion, Glucose Utilization and Oxidative Metabolism in Patients With Pulmonary Hypertension Using Combined [11C]Acetate and [18F]Fluorodeoxyglucose (FDG) PET/CT and Cardiovascular MRI
This study is looking at differences in metabolism and functional imaging between pulmonary hypertension subjects with normal right ventricular function and persistent right ventricular dysfunction.
We will measure right ventricular metabolic and structural changes using serial 11C-acetate
and 18F-FDG PET/CT and cardiac MRI as response to treatment with ranolazine. Subjects undergo
imaging procedures at week 0 and week 26 (optional for normal function patients). This is a
companion imaging trial for patients who are eligible for the treatment trial entitled "A
randomized, double-blind, placebo controlled, multi-center study to assess the effect of
ranolazine on outcomes in subjects with pulmonary hypertension and right ventricular
dysfunction accompanied by a comparative study of cellular metabolism in subjects with
pulmonary hypertension with and without right ventricular dysfunction". Subjects must enroll
in companion treatment protocol to qualify for the imaging protocol.
The cardiac MRI portion of the study continued, but the PET portion of the study was
discontinued due to funding.
The treatment protocol is registered under: NCT01839110. Due to funding issues, the completed
study was registered under NCT02829034.
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