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Cervarix
CERVARIX®
[Human Papillomavirus Bivalent (Types 16 and 18) Vaccine, Recombinant]
Efficacy

Important Safety Information

CERVARIX is contraindicated in patients with severe allergic reactions to any component of the vaccine Continued below

PROTECTION AGAINST ONCOGENIC HPV TYPES 16 AND 18 [1]

CERVARIX demonstrated high efficacy in 2 patient populations in a phase 3 study [1]

Precancerous Lesions

Before vaccination, 73.6% of the total study population were naïve to oncogenic HPV types 16 and/or 18 [1]

Study design: A randomized, double-blind, controlled clinical trial was conducted in which 18,665 healthy females 15 through 25 years of age received CERVARIX or hepatitis A vaccine control on a 0-, 1-, and 6-month schedule. The mean follow-up after the first dose was approximately 39 months.

* According to protocol population: A cohort that included young women without previous HPV exposure or current HPV infection throughout the vaccination series for the HPV type considered in the analysis. Patients received all 3 doses.
Total vaccinated cohort-naïve population: A cohort of young women without current HPV infection with 14 oncogenic HPV types or previous HPV-16 and HPV-18 exposure at baseline. Patients received at least 1 dose.

CERVARIX is a vaccine indicated for the prevention of the following diseases caused by oncogenic human papillomavirus (HPV) types 16 and 18: cervical cancer, cervical intraepithelial neoplasia (CIN) grade 2 or worse and adenocarcinoma in situ (AIS), and CIN grade 1. CERVARIX is approved for use in females 9 through 25 years of age.

CERVARIX is contraindicated in patients with severe allergic reactions to any component of the vaccine.

Impact against the overall burden of HPV-related cervical disease...

...results from a combination of prophylactic efficacy against, and disease contribution of, HPV-16, HPV-18, and non-vaccine HPV types [1]

Limitations of Use and Effectiveness

  • CERVARIX does not provide protection against disease due to all HPV types
  • CERVARIX has not been demonstrated to provide protection against disease from vaccine and non-vaccine HPV types to which a woman has previously been exposed through sexual activity
  • Females should continue to adhere to recommended cervical cancer screening procedures
  • Vaccination with CERVARIX may not result in protection in all vaccine recipients

Efficacy in the total vaccinated cohort-naïve population irrespective of oncogenic type [1]

While the impact of CERVARIX is mainly due to efficacy against HPV types 16 and 18, CERVARIX significantly reduced the incidence of precancerous lesions in 2 analyses combining 12 non-vaccine oncogenic HPV types [1] ‡§

54% efficacy including lesions in which HPV-16 or HPV-18 were also detected [96.1% CI, 34.0-68.4]
37% efficacy excluding lesions in which HPV-16 or HPV-18 were also detected [96.1% CI, 7.4-58.2]

In post hoc analyses of efficacy against 12 individual oncogenic HPV types not included in the vaccine, significant efficacy was observed only against HPV type 31 [1]

Total vaccinated cohort-naïve population: A cohort of young women without current HPV infection with 14 oncogenic HPV types or previous HPV-16 and HPV-18 exposure at baseline. Patients received at least 1 dose.
A subcohort that included young women without current infection with the HPV type considered in the analysis throughout the vaccination series. Patients received all 3 doses.
§ 12 non-vaccine oncogenic types: 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68.

CERVARIX FOR YOUR YOUNG ADULT PATIENTS [1]

Immune response following natural infection does not reliably confer protection against future infections [1]

CERVARIX is a prophylactic vaccine and is not effective against active infections.

In women previously exposed to oncogenic HPV types 16 or 18,

CERVARIX demonstrated 95.8% efficacy against 12-month persistent
infection [1] || #

One case in group receiving CERVARIX (n=1,427) vs 24 cases in group receiving control (n=1,461) [CI, 72.4-99.9] [1,2]

The number of cases was too few to determine efficacy against CIN 2/3 or AIS in this population. [1]

|| Study design: A randomized, double-blind, controlled clinical trial was conducted in which 18,665 healthy females 15 through 25 years of age received CERVARIX or hepatitis A vaccine control on a 0-, 1-, and 6-month schedule. The mean follow-up after the first dose was approximately 39 months.
# A cohort that included young women without current HPV infection throughout the vaccination series, but with previous HPV exposure. Patients received all 3 doses.

CERVARIX is a vaccine indicated for the prevention of the following diseases caused by oncogenic human papillomavirus (HPV) types 16 and 18: cervical cancer, cervical intraepithelial neoplasia (CIN) grade 2 or worse and adenocarcinoma in situ (AIS), and CIN grade 1. CERVARIX is approved for use in females 9 through 25 years of age.

Duration of effect

The duration of immunity following a complete schedule of vaccination with CERVARIX has not been established.

CERVARIX generated an immune response for both HPV-16 and HPV-18 that peaked at month 7 and reached a plateau that was sustained from month 18 up to month 76. [1]

In a phase 2 study—
CERVARIX has immunogenicity and efficacy data as of 6.4 years (mean 5.9 years) [1]

The minimum anti-HPV titer that confers protective efficacy has not been determined.

Study design: Double-blind, randomized, controlled study that included a total of 1,113 females 15 through 25 years of age who were naïve to current oncogenic HPV infection or prior exposure to HPV-16 and HPV-18 at the time of vaccination (total cohort). The extended follow-up study to 6.4 years enrolled 776 patients.

The most common local adverse reactions and general adverse events in ≥20% of patients were pain, redness, and swelling at the injection site, fatigue, headache, myalgia, gastrointestinal symptoms, and arthralgia.

CERVARIX FOR YOUR PEDIATRIC PATIENTS

Bridging of efficacy from women to adolescent girls [1]

100% of girls 10 through 14 years of age were seropositive for HPV-16 and HPV-18 antibodies at 7 months (1 month post-dose 3) [1]

The immune response in girls 10 through 14 years of age measured 1 month post-dose 3 was noninferior to that seen in women 15 through 25 years of age for both HPV-16 and HPV-18. [1]

GMT=geometric mean titer.
EL.U.=ELISA units.

Study design: CERVARIX was administered to girls and women 10 through 14 years of age and 15 through 25 years of age who were initially seronegative and received 3 doses of vaccine for whom assay results were available for at least 1 post-vaccination antibody measurement (anti–HPV-16—10 through 14: N=143 [95% CI, 15,117.9-19,734.1]; 15 through 25: N=118 [95% CI, 6,324.6-8,749.6]); (anti–HPV-18—10 through 14: N=141 [95% CI, 5,976.3-7,883.0]; 15 through 25: N=116 [95% CI, 2,600.0-3,625.4]).

In Study 5—
A post-hoc analysis compared the immunogenicity of CERVARIX administered to girls 9 through 14 years of age (n=68) to that in females 15 through 25 years of age (n=114).

In these initially seronegative subjects, the immune response in girls 9 through 14 years of age measured one month post-dose 3 was noninferior to that observed in females 15 through 25 years of age for both HPV-16 and HPV-18 antigens [lower limit of the 2-sided 95% CI for the GMT ratio (9–14 year-olds/15–25 year-olds) was >0.5].

The GMTs for anti–HPV-16 and anti–HPV-18 antibodies at month 7 were 22,261.3 EL.U./mL and 7,398.8 EL.U./mL, respectively, in girls 9 through 14 years of age and 10,322.0 EL.U./mL and 4,261.5 EL.U./mL, respectively, in females 15 through 25 years of age.

Based on these immunogenicity data, the efficacy of CERVARIX is inferred in girls 9 through 14 years of age. [1]

Duration of effect

The duration of immunity following a complete schedule of vaccination with CERVARIX has not been established.

CERVARIX generated an immune response for both HPV-16 and HPV-18 that peaked at month 7 and reached a plateau that was sustained from month 18 up to month 76. [1]

In a phase 2 study—
CERVARIX has immunogenicity and efficacy data as of 6.4 years (mean 5.9 years) [1]

The minimum anti-HPV titer that confers protective efficacy has not been determined.

Study design: Double-blind, randomized, controlled study that included a total of 1,113 females 15 through 25 years of age who were naïve to current oncogenic HPV infection or prior exposure to HPV-16 and HPV-18 at the time of vaccination (total cohort). The extended follow-up study to 6.4 years enrolled 776 patients.

The most common local adverse reactions and general adverse events in ≥20% of patients were pain, redness, and swelling at the injection site, fatigue, headache, myalgia, gastrointestinal symptoms, and arthralgia.

Vaccination with CERVARIX may not result in protection in all vaccine recipients.


Required Information

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