
A Complex Drug, But Not a Biologic
A biologic is a protein derived from living material used to treat or cure a disease. Because the polypeptides that make up Glatiramer Acetate (GA) are manufactured in the lab, it is not classified as a biologic.4
The mechanism(s) by which GA exerts its effects in patients with MS are not fully understood. GA is a mixture of synthetic polypeptides composed of four amino acids. Given subcutaneously, GA is readily absorbed, and most of a dose is quickly degraded into smaller fragments in the subcutaneous compartment. GA is believed to induce the regulatory cells that inhibit the immunological damage process that occurs in MS.2