
Halozyme claims Merck infringed on patents in developing a subcutaneous form of Keytruda. Elsewhere, Vanda’s challenge to an FDA rejection dragged on, while Sanofi revealed an immune drug setback.

Halozyme claims Merck infringed on patents in developing a subcutaneous form of Keytruda. Elsewhere, Vanda’s challenge to an FDA rejection dragged on, while Sanofi revealed an immune drug setback.