Oral Contraceptive (OC) Progestin Dose and Breast Proliferation

Summary

The purpose of this research study is to gain a better understanding of the changes that may occur in the breast when a woman uses an oral contraceptive (birth control pill). Some research indicates that women who use birth control pills with lower amounts of progestin (a hormone in the birth control pill) may have lower breast cell growth than women who use birth control pills with a higher amount of progestin; this research will examine that in detail.

Timeline

Start

2007-08

Primary completion

2008-11

Completion

2008-11

Publications

• Hovanessian-Larsen L, Taylor D, Hawes D, Spicer DV, Press MF, Wu AH, Pike MC, Pearce CL. Lowering oral contraceptive norethindrone dose increases estrogen and progesterone receptor levels with no reduction in proliferation of breast epithelium: a randomized trial. Contraception. 2012 Sep;86(3):238-43. doi: 10.1016/j.contraception.2011.12.015. Epub 2012 Feb 9.

Drugs

Indications

No indication recorded.