HPV-SAVE_Merck_Sub-Study for Preventing Recurrence of HSIL

Gardasil-9 is a novel, 9-valent HPV recombinant vaccine, which expands the coverage of oncogenic HPV types, with the addition of HPV types 31, 33, 45, 52, and 58 to the existing quadrivalent vaccine types. The addition of these five oncogenic types is estimated to improve cancer coverage to 90% (versus 70% for the quadrivalent vaccine) \[38\]. With its expanded coverage of oncogenic HPV types, its proven efficacy in primary prevention and its potential role in mitigating HGAIN recurrences.