Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing: the first line of defense against ...

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 ...

WALTHAM, Mass., Oct. 15, 2020 (GLOBE NEWSWIRE) -- Apellis Pharmaceuticals, Inc. (Nasdaq: APLS), a global biopharmaceutical company and leader in targeted C3 therapies, today announced observational ...

- Interim data from Phase 1/2a study demonstrate near complete inhibition in hemolytic activity and functional activity of alternative complement pathway “Dysregulated activation of the complement ...