Powder: white to off-white powder.
Solvent: clear colourless water for injections.
Winrevair powder and solvent for solution for injection 45 mg: Each vial contains 45 mg of sotatercept. After reconstitution, each mL of solution contains 50 mg sotatercept.
Winrevair powder and solvent for solution for injection 60 mg: Each vial contains 60 mg of sotatercept. After reconstitution, each mL of solution contains 50 mg sotatercept.
Sotatercept is a recombinant homodimeric fusion protein consisting of the extracellular domain of human activin receptor type IIA (ActRIIA) linked to the Fc domain of human IgG1, produced in Chinese Hamster Ovary (CHO) cells by recombinant DNA technology.
Excipients/Inactive Ingredients: Powder: Citric acid monohydrate (E330), Sodium citrate (E331), Polysorbate 80 (E433), Sucrose.
Solvent: Water for injections.