A Study To Investigate How The Body Handles Multiple Doses Of PF-0243873 And To Investigate The Effect Of PF-02413873 On Sex Hormone Levels In Healthy Young Women

A Double Blind (3rd Party Open), Randomised, Placebo Controlled, Dose Escalating, Parallel Group Study To Investigate The Safety, Toleration, Pharmacology And Pharmacokinetics, Of Multiple Doses Of PF-02413873 In Healthy Female Subjects.

The study will investigate how well multiple doses of PF-02413873 are tolerated by healthy young women, how the body handles multiple doses of PF-02413873 and which effect PF-02413873 has on sex hormones in healthy young women

Inclusion Criteria:

• Healthy women of childbearing potential with a regular menstrual cycle

Exclusion Criteria:

• Evidence or history of any major disease
• Pregnant or nursing women
• Requirement for chronic medication