title: Human papillomavirus 16/18 AS04-adjuvanted cervical cancer vaccine: immunogenicity and safety in 15-25 years old healthy Korean women.
abstract: OBJECTIVE
  The study assessed the immunogenicity and safety of human papillomavirus (HPV)-16/18 AS04-adjuvanted cervical cancer vaccine in healthy Korean women aged 15-25 years.
  
  
  METHODS
  Phase IIIB, double-blind, randomised (2:1), multi-centre trial was conducted in Korea from June 2007 to March 2008. The study enrolled 225 women in the HPV (N=149) and placebo (N=76) groups who received three doses of HPV-16/18 AS04-adjuvanted vaccine or placebo (aluminium hydroxide) administered intramuscularly at 0, 1, and 6 months and were followed until one month post-dose 3. Serum samples were collected pre-vaccination and one month post-dose 3. Safety and reactogenicity data were collected throughout.
  
  
  RESULTS
  In this trial, 208 women completed the study (141 in HPV group; 67 in placebo group). At month 7, all initially seronegative women had seroconverted for HPV-16 and HPV-18 antibodies with anti-HPV-16 and anti-HPV-18 geometric mean titres of 9,351.4 El.U/mL (95% CI, 8,145.5 to 10,735.8) and 4204.1 El.U/mL (95% CI, 3,626.5 to 4,873.6), respectively. Initially seropositive women showed similar increase in geometric mean titre levels. Compliance to the three dose vaccination course was 95.3% in HPV and 89.5% in placebo group. Solicited local (pain) and general (fatigue, myalgia or headache) symptoms were commonly reported in both groups. Three serious adverse events were reported (two in HPV group; one in placebo group), all unrelated to vaccination by the investigator; all recovered.
  
  
  CONCLUSIONS
  The HPV-16/18 AS04-adjuvanted vaccine was highly immunogenic with a clinically acceptable safety profile in Korean women. This study was in line with previous global studies in Europe, North America, and Brazil. (ClinicalTrials.gov number, NCT 00485732.).
authors.affiliation: Department of Obstetrics and Gynecology, Ewha Womans University Mokdong Hospital, Seoul, Korea.
authors.forename: Seung Cheol
authors.initials: SC
authors.lastname: Kim
authors.forename: Yong Sang
authors.initials: YS
authors.lastname: Song
authors.forename: Young-Tae
authors.initials: YT
authors.lastname: Kim
authors.forename: Young Tak
authors.initials: YT
authors.lastname: Kim
authors.forename: Ki-Sung
authors.initials: KS
authors.lastname: Ryu
authors.forename: Bhavyashree
authors.initials: B
authors.lastname: Gunapalaiah
authors.forename: Dan
authors.initials: D
authors.lastname: Bi
authors.forename: Hans L
authors.initials: HL
authors.lastname: Bock
authors.forename: Jong-Sup
authors.initials: JS
authors.lastname: Park