CCTN - FEMALE SITES - EVALUATION OF LONG ACTING REVERSIBLE CONTRACEPTIVES

评价长效可逆避孕药（LARC）在育龄妇女中的避孕效果、插入疼痛、出血模式、相关痉挛、脱落率以及其他安全性和副作用。 Eunice Kennedy Shriver国家儿童健康和人类发展研究所（NICHD）的避孕药具发现和开发分支（CDDB）致力于开发长效可逆避孕药的新方法，为可能存在某些避孕产品风险因素的妇女提供安全有效的避孕措施，并降低静脉血栓栓塞症（VTE）的风险。 铜宫内节育器（IUD）是宫内系统的一个例子，它提供了长效避孕的好处，没有外源性激素或中断正常的月经周期。

To evaluate contraceptive efficacy, pain of insertion, bleeding patterns, associate cramping, expulsion rates as well as other safety and side effects of the long acting reversible contraceptive (LARCs) in women of reproductive age. The Contraceptive Discovery and Development Branch (CDDB) under the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) is committed to develop new methods that are long acting reversible contraceptives that can provide safe and effective contraception for women who may have risk factors against some contraceptive products as well as reduce the risk of venous thromboembolism (VTE). The copper intrauterine devices (IUDs) are example of intrauterine systems that provide long acting contraceptive benefits without exogenous hormones or disruption of the regular menstrual cycle.