GSK Cervical Cancer Candidate Vaccine CERVARIX (R) Demonstrates Long-Term Protection for More Than...( New study results also demonstrate ...),Health

New study results also demonstrate the longest duration of consistently

high antibody levels shown by a cervical cancer vaccine

TAMPA, Fla., March 10 /PRNewswire-FirstCall/ -- New data demonstrate that GlaxoSmithKline's (NYSE: GSK) cervical cancer candidate vaccine, CERVARIX(R) provides significant protection for women against the four most common cancer- causing human papillomavirus types for nearly six and a half years, the longest duration of protection reported to date. Over this time, the cervical cancer candidate vaccine showed 100 percent efficacy in preventing precancerous lesions due to cancer-causing virus types 16 and 18 and also provided substantial protection against infection caused by virus types 31 and 45.

These data show that virtually 100 percent of women in the study, 15-25 years of age, maintained high levels of antibodies against both virus types 16 and 18 at every time point for nearly six and half years. This signifies the longest duration of consistently high antibody levels demonstrated by a cervical cancer vaccine. Antibody levels remained several times higher than natural infection levels over the extended period of time.

"With this trial, we continue to see high levels of antibodies that lasted over time in virtually all women studied, which is critical for the prevention of cervical cancer," said Diane Harper, MD, Norris Cotton Cancer Center, Dartmouth-Hitchcock Medical Center, NH. "These data are remarkable as they show the potential for this cervical cancer vaccine to protect women over the long term."

The study also confirmed substantial cross-protection for nearly six and a half years against incident infection caused by virus types 45 and 31. Specifically, the vaccine
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