Inclusion Criteria:

          -  Women, 25 to 50 years old.

          -  Cervical HSIL diagnosis made within 2 months of enrollment and confirmed with biopsy
             with no evidence of invasive cancer in any specimen and must be p16+.

          -  Able and willing to abstain from sexual intercourse for 48 hours prior to first dose
             and 2 days after each dose.

          -  Generally experiencing regular menstrual cycles, unless using long-acting reversible
             contraception that induces amenorrhea (e.g., Mirena IUD, Norplant).

        Exclusion Criteria:

          -  Women who are pregnant, plan to become pregnant in the next 4 months, or lactating
             females.

          -  History of cancer, except basal cell or squamous cell carcinoma of the skin.

          -  History of genital herpes with > 3 outbreaks per year, or active non-HPV vaginal
             infection.

          -  Plan to have excision or ablation of the lesion(s) within 3 months of enrollment.

          -  History of cervical cancer, colposcopy suspicious for cancer, any prior treatment of
             CIN, or hysterectomy.