Sustained efficacy and immunogenicity of the human papillomavirus (HPV)-16/18 AS04-adjuvanted vaccine: analysis of a randomised placebo-controlled trial up to 6.4 years

被引:292
作者
Romanowski, B. [1 ]
de Borba, P. Colares [2 ]
Naud, P. S. [3 ]
Roteli-Martins, C. M. [4 ]
De Carvalho, N. S. [5 ,6 ]
Teixeira, J. C. [7 ]
Aoki, F. [8 ]
Ramjattan, B. [9 ]
Shier, R. M. [10 ]
Somani, R. [11 ]
Barbier, S. [12 ]
Blatter, M. M. [13 ]
Chambers, C. [14 ]
Ferris, D. [15 ]
Gall, S. A. [16 ]
Guerra, F. A. [17 ]
Harper, D. M. [18 ]
Hedrick, J. A. [19 ]
Henry, D. C. [20 ]
Korn, A. P. [21 ]
Kroll, R. [22 ]
Moscicki, A-B [23 ]
Rosenfeld, W. D. [24 ]
Sullivan, B. J. [25 ]
Thoming, C. S. [26 ]
Tyring, S. K. [27 ]
Wheeler, C. M. [28 ]
Dubin, G. [29 ]
Schuind, A. [29 ]
Zahaf, T. [30 ]
机构
[1] Univ Alberta, Edmonton, AB T6G 2C8, Canada
[2] Ceara Canc Prevent Inst, Fortaleza, Ceara, Brazil
[3] Univ Fed Rio Grande do Sul, Hosp Clin Porto Alegre, Porto Alegre, RS, Brazil
[4] Leonor Mendes de Barros Hosp, Hlth State Dept, Sao Paulo, Brazil
[5] Univ Fed Parana, Dept Obstet & Gynaecol, BR-80060000 Curitiba, Parana, Brazil
[6] Clin Hosp, Obstetr Gynecol & Infect Dis Sector, Curitiba, Parana, Brazil
[7] Univ Estadual Campinas, CAISM, Dept Gynaecol, Div Oncol, Campinas, SP, Brazil
[8] Univ Manitoba, Winnipeg, MB, Canada
[9] Cowan Ave Med Clin, St John, NF, Canada
[10] Univ Toronto, Sunnybrook Hlth Sci Ctr, Toronto, ON, Canada
[11] Glover Med Clin, Langley, BC, Canada
[12] Womens Clin Res Ctr, Seattle, WA USA
[13] Primary Phys Res, Pittsburgh, PA USA
[14] Thomas Jefferson Univ, Jefferson Med Coll, Philadelphia, PA 19107 USA
[15] Med Coll Georgia, Augusta, GA 30912 USA
[16] Univ Louisville, Sch Med, Louisville, KY 40292 USA
[17] San Antonio Metropolitan Hlth Dist, San Antonio, TX USA
[18] Dartmouth Coll, Hitchcock Med Ctr, Dartmouth Med Sch, Hanover, NH 03756 USA
[19] Kentucky Pediat & Adult Res, Bardstow, KY USA
[20] J Lewis Res, Salt Lake City, UT USA
[21] San Francisco Gen Hosp, San Francisco, CA 94110 USA
[22] Womens Clin Res Ctr, Seattle, WA USA
[23] Univ Calif San Francisco, San Francisco, CA 94143 USA
[24] Goryeb Childrens Hosp, Atlantic Hlth, Dept Pediat, Morristown, NJ USA
[25] Marshfield Clin Fdn Med Res & Educ, Marshfield, WI 54449 USA
[26] Westover Hts Clin, Portland, OR USA
[27] Univ Texas Hlth Sci Ctr Houston, Houston, TX USA
[28] Univ New Mexico, Hlth Sci Ctr, Albuquerque, NM 87131 USA
[29] GSK Biol, King Of Prussia, PA USA
[30] GSK Biol, Rixensart, Belgium
关键词
SUBSEQUENT HPV INFECTION; PARTICLE VACCINE; CERVICAL-CANCER; YOUNG-WOMEN; NATURAL-HISTORY; ANTIBODY-LEVELS; DOUBLE-BLIND; HEPATITIS-B; TYPE-16; RISK;
D O I
10.1016/S0140-6736(09)61567-1
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background Prophylactic human papillomavirus (HPV) vaccines have to provide sustained protection. We assessed efficacy, immunogenicity, and safety of the HPV-16/18 AS04-adjuvanted vaccine up to 6.4 years. Methods Women aged 15-25 years, with normal cervical cytology, who were HPV-16/18 seronegative and oncogenic HPV DNA-negative (14 types) at screening participated in a double-blind, randomised, placebo-controlled initial study (n=1113; 560 vaccine group vs 553 placebo group) and follow-up study (n=776; 393 vs 383). 27 sites in three countries participated in the follow-up study. Cervical samples were tested every 6 months for HPV DNA. Management of abnormal cytologies was prespecified, and HPV-16/18 antibody titres were assessed. The primary objective was to assess long-term vaccine efficacy in the prevention of incident cervical infection with HPV 16 or HPV 18, or both. We report the analyses up to 6.4 years of this follow-up study and combined with the initial study. For the primary endpoint, the efficacy analysis was done in the according-to-protocol (ATP) cohort; the analysis of cervical intraepithelial neoplasia grade 2 and above (CIN2+) was done in the total vaccinated cohort (TVC). The study is registered with ClinicalTrials.gov, number NCT00120848. Findings For the combined analysis of the initial and follow-up studies, the ATP efficacy cohort included 465 women in the vaccine group and 454 in the placebo group; the TVC included 560 women in the vaccine group and 553 in the placebo group. Vaccine efficacy against incident infection with HPV 16/18 was 95.3% (95% C1 87.4-98.7) and against 12-month persistent infection was 100% (81.8-100). Vaccine efficacy against CIN2+ was 100% (51.3-100) for lesions associated with HPV-16/18 and 71.9% (20.6-91.9) for lesions independent of HPV DNA. Antibody concentrations by ELISA remained 12-fold or more higher than after natural infection (both antigens). Safety outcomes were similar between groups: during the follow-up study, 30 (8%) participants reported a serious adverse event in the vaccine group versus 37 (10%) in the placebo group. None was judged related or possibly related to vaccination, and no deaths occurred. Interpretation Our findings show excellent long-term efficacy, high and sustained immunogenicity and favourable safety of the HPV-16/18 AS04-adjuvanted vaccine up to 6.4 years.
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页码:1975 / 1985
页数:11
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