Zilucoplan

How it works

In myasthenia gravis, this ring peptide blocks complement C5, an immune attack protein, shielding the nerve-muscle junction.

What it's made of

15 amino acids closed in a ring, with non-natural pieces and a tail of fat and PEG. It does not copy any hormone: it blocks the complement protein C5, part of the body's defenses.

What it's for

Prescribed for

Generalized myasthenia gravis in adults with antibodies against the acetylcholine receptor. In the EU, added to standard treatment.