Continued FDA approval of iptacopan was contingent on 2-year trial data ...

A complement C4 (also known as a complement component 4, or simply C4) is a test to measure the level of C4 proteins you have in your blood. These proteins play a role in how your immune system ...

Complement 3 glomerulopathy (C3G) is a rare kidney disease caused by problems in the body's complement system, which normally helps fight infections. It damages tiny filters in your kidneys called ...

Findings from clinical trials of proprotein convertase subtilisin–kexin type 9 (PCSK9) inhibitors have led to concern that these drugs or the low levels of low-density lipoprotein (LDL) cholesterol ...