Professors Luigi Tavazzi and Gianni Tognoni from the ANMCO Research Centre in Florence followed 3,494 patients with chronic heart failure who were given omega-3, and 3,481 others who were randomly assigned to take a placebo capsule, for between three and nine years.
The GISSI study is a preventive intervention study on the atherosclerotic and thrombotic component of post-MI risk and is being carried out by the Mario Negri Institute of Pharmacological Sciences and ANMCO (an Italian Society of Cardiologists).