RecruitingPhase 2Biological interventionPembrolizumab for the Treatment of Cervical Intraepithelial NeoplasiaThis phase II trial studies the effect of pembrolizumab on cervical intraepithelial neoplasia. Immunotherapy with monoclonal antibodies, such as pembrolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.