The Second Investigation of the Management of Pericarditis (IMPI-2) Trial will compare the effectiveness and safety of complete percutaneous pericardial drainage facilitated by intrapericardial alteplase (recombinant human tissue-type plasminogen activator) to conventional pericardiocentesis when indicated in 2176 patients with large pericardial effusion due to tuberculous and non-tuberculous pericarditis. An internal pilot study of 218 patients will initially confirm the feasibility of conducting a large-scale multi-centre clinical trial of intrapericardial fibrinolysis in patients with large pericardial effusion, and also provide preliminary safety data, following a dose finding study of intrapericardial alteplase.
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Composite outcome of cardiac tamponade requiring pericardiocentesis or constrictive pericarditis.
Timeframe: 12 months