Evaluation of Reporting of Immune Checkpoint Inhibitor Associated Cardio-vascular Adverse Reactions

Inclusion Criteria: * Case reported in the World Health Organization (WHO) database of individual safety case reports to 12/31/2017 * Adverse event reported were including the MedDRA terms: Cardiac and vascular investigations (excl enzyme tests) (HLGT), Vascular disorders (SOC), Skeletal and cardiac muscle analyses (HLT), Sudden death (PT), Sudden cardiac death (PT), Cardiac disorders (SOC), Cardiac arrhythmias (HLGT), Cardiac disorder signs and symptoms (HLGT), Cardiac neoplasms (HLGT), Cardiac valve disorders (HLGT), Congenital cardiac disorders (HLGT), Coronary artery disorders (HLGT), Endocardial disorders (HLGT), Heart failures (HLGT), Myocardial disorders (HLGT), Pericardial disorders (HLGT) * Patients treated with ICIs included in the ATC: Ipilimumab (L01XC11), Nivolumab (L01XC17), Pembrolizumab (L01XC18), Durvalumab (L01XC28), Avelumab (L01XC31), Atezolizumab (L01XC32). Exclusion Criteria: * Chronology not compatible between the drug and the toxicity