3,819
Participants
Start Date
June 16, 2004
Primary Completion Date
May 21, 2009
Study Completion Date
November 12, 2015
Quadrivalent Human Papillomavirus (Types 6, 11, 16, 18) Recombinant Vaccine
qHPV intramuscular injection in three 0.5 mL doses over 6 months in the Base Study or EXT1
Comparator: Placebo
Placebo intramuscular injection in three 0.5 mL doses over 6 months.
Merck Sharp & Dohme LLC
INDUSTRY