Long-term safety of an extended-cycle oral contraceptive (Seasonale): a 2-year multicenter open-label extension trial.

@article{Anderson2006LongtermSO,
  title={Long-term safety of an extended-cycle oral contraceptive (Seasonale): a 2-year multicenter open-label extension trial.},
  author={Freedolph D Anderson and William B Gibbons and David J. Portman},
  journal={American journal of obstetrics and gynecology},
  year={2006},
  volume={195 1},
  pages={92-6}
}
OBJECTIVE The purpose of this study was to assess the long-term safety of Seasonale, 91-day extended-cycle oral contraceptive (OC). STUDY DESIGN Following completion of a 1-year Phase 3 multicenter trial, patients from selected centers were invited to participate in this 2-year extension trial. In this open-label study all participants received the 91-day extended-regimen OC, Seasonale. RESULTS There were 189 study participants enrolled from 27 sites. Patient exposure included 1130… CONTINUE READING

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