• The occurrence of any SAEs [ Time Frame: Throughout the study period ]
  
• The occurrence of any and Grade 3 solicited local symptoms [ Time Frame: During the 7-day period following each vaccination ]
  
• The occurrence of any, Grade 3 and causally related to vaccination solicited general symptoms [ Time Frame: During the 7-day period following each vaccination ]
  
• The occurrence of any, Grade 3 and causally related to vaccination unsolicited AEs [ Time Frame: During the 30-day period following each vaccination ]
  
• Occurrence of clinically relevant abnormalities in biochemical and haematological parameters [ Time Frame: At Months 0 and 7 ]
  
• The occurrence of medically significant conditions regardless of causal relationship to vaccination and intensity. [ Time Frame: Throughout the study period ]
  

The rationale for the protocol posting amendment was to change the study population from 18-35 to 15-45 years and to allow subjects who were administered routine vaccines e.g. Hepatitis A&B vaccines, meningococcal vaccines, Tetanus vaccine, DTP etc. up to 8 days before each HPV dose.

Inclusion Criteria:

• Subjects who the investigator believes that they can and will comply with the requirements of the protocol should be enrolled in the study.
• A female of Chinese origin, residing in China, aged between 15 - 45 years (inclusive) at the time of the first vaccination.
• Written informed consent obtained from the subject. For subjects below the legal age of consent, written informed consent must be obtained from the subject's parent or Legally Acceptable Representative (LAR), and written informed assent must be obtained from the subject.
• Healthy subjects as established by medical history and clinical examination before entering into the study.
• Subjects must have a negative urine pregnancy test.
• Subjects must be of non-childbearing potential, or if the subject is of childbearing potential, she must be abstinent or must be using adequate contraception for 30 days prior to vaccination and continue for 2 months after completion of the vaccination series.

Exclusion Criteria:

• Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period.
• Pregnant or breastfeeding.
• Planning to become pregnant or likely to become pregnant
• Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose.
• Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period.
• Planned administration/administration of a vaccine not foreseen by the study protocol within 30 days preceding and 30 days after the first dose of vaccine. Administration of some routine vaccines up to 8 days before the first dose of study vaccine is allowed.
• Previous administration of components of the investigational vaccine.
• Previous vaccination against HPV or planned administration of any HPV vaccine other than that foreseen by the study protocol during the study period.
• Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination
• History of allergic disease, suspected allergy or reactions likely to be exacerbated by any component of the study vaccine.
• Hypersensitivity to latex.
• Major congenital defects or serious chronic illness.
• History of any neurologic disorders or seizures.
• Known acute or chronic, clinically significant system conditions.
• Cancer or autoimmune disease under treatment.
• Acute disease at the time of enrolment.
• History of chronic alcohol consumption and/or drug abuse.