Review Article

Are the Two Human Papillomavirus Vaccines Really Similar? A Systematic Review of Available Evidence: Efficacy of the Two Vaccines against HPV

Table 2

Characteristics of the five trials selected.

Study [reference] Protocol Number of study sites Countries included Year of study enrolment Funding sourceInclusion criteriaExclusion criteria Vaccine type Control Women enrolled (TVC) Women assessed (TVC) Length of follow-up
Age yearsSexual partnersAny of the following

GSK [11, 12, 28]NCT00120848
Phase II trial
27Brazil, Canada, and USA2001GSK15–25≤6Abnormal cervical cytology, 
HPV16/18 seropositivity,  
DNA positivity for 14 oncogenic HPV types,  
history of abnormal Pap test.
BAluminium containing placebo560 V  
553 P
505 V  
497 P
5.9 years (average)  
6.4 years (maximum)

PATRICIA [13, 27]NCT00122681
Phase III trial
13514 (Asia-Pacific, Europe, Latin America, and North America)2004-2005GSK15–25≤6History of abnormal Pap test, 
pregnancy or breastfeeding, 
chronic disease, autoimmune disease, immunodeficiency.
BHAV vaccine9319 V
9325 P
8694 V
8708 P
4 years 
(average)

Konno et al. [29]NCT00316693
Phase II trial
13Japan2006GSK20–25Not specifiedHistory of abnormal Pap test or genital warts, 
pregnancy,  
previous vaccination with HPV or HAV vaccine, 
MPL administration, 
hepatitis A infection.
BHAV vaccine519 V 
521 P
501 V 
501 P
13.6 months in Konno 2010

FUTURE I [16, 26, 30]NCT00092521
Phase III trial
6216 (Asia-Pacific, Europe, and America)2001–2003Merck16–24≤4History of abnormal Pap test or genital warts, 
pregnancy, 
being not healthy.
Q Aluminium containing placebo2723 V
2732 P
7980 V
7236 P
Follow-up FUTURE I + FUTURE II trial
3.6 years (average) 
4.9 years (maximum)

FUTURE II [17, 26, 30]NCT00092534
Phase III trial
9013 (as above)2002-2003Merck15–26≤4History of abnormal Pap test or genital warts, 
pregnancy, 
being not healthy.
Q Aluminium containing placebo6087 V
6080 P
As aboveAs above

B: bivalent vaccine; Q: quadrivalent vaccine.