“…Up to present, there are about 20 marketed PEGylated pharmaceutics, including PEGylated small MW drugs (Naloxegol and PEG‐doxorubicin) [27–30], PEGylated proteins, and monoclonal antibodies (peginterferon alfa‐2a, peginterferon alfa‐2b, peginterferon beta‐1a, pegaptanib, pegaspargase, mPEG‐Epoetin beta, pegfilgrastim, pegteograstim, pegloticase, pegvaliase, pegvisomant, certolizumab pegol, calaspargase pegol, PEG‐antihemophilic factor, PEG‐coagulation factor IX, and PEG‐adenosine deaminase bovine etc .) [31–34], as to PEGylated nanoparticles (Doxil) [35–39].…”