Elimination of Cervical Cancer: Challenges Promoting the HPV Vaccine in China

Abstract

Objective: Cervical cancers present major threats to women's health in China. Eliminating cervical cancer in China is a huge challenge, with application of the HPV vaccine, which is an important part.

Methods: There are currently four HPV vaccines available in China: E-coli bv-HPV (Wantai, China), bv-HPV, qv-HPV (GSK, UK), and 9v-HPV (MSD, USA). To observe the immunogenicity, efficacy, and safety of these four vaccines in China, we formed the "Chinese Expert Consensus on the Clinical Application of HPV Vaccine."

Results: At 7 months after vaccination, all vaccinated subjects had the same immunogenic response to either HPV16 or HPV18, ranging from 96 to 100%, and antibody production in girls aged 9-14 years was 2-3 times higher than that in adult women. Efficacy of the four vaccines against CIN2 + ranged from 87.3% to 100%, with prevention of HPV-associated infection reaching 96% ~ 97% at 12 months. Clinical trials showed bv-HPV and qv-HPV vaccine were also safe in women aged 18-45 years. Clinical trials of the 9v-HPV vaccine are underway. HPV vaccination is currently voluntary and self-paid in China. The "Chinese Expert Consensus on the Clinical Application of HPV Vaccine" will work to promote the application of HPV vaccine in China.

Conclusions: In clinical studies, the available HPV vaccines showed excellent efficacy, safety, and immunogenicity in Chinese women. We will continue strengthening screening and encouraging HPV vaccination.

Keywords: Efficacy; Expert consensus; HPV vaccine; Safety.