CLINICAL EVALUATION OF LEVONORGESTREL BUTANOATE FOR FEMALE CONTRACEPTION

NICHD的避孕临床试验网络对各种新的女性和男性避孕方法进行第一、第二和第三阶段的临床试验。该合同的目的是让CCTN承包商进行女性避孕临床试验，进行妇科疾病的治疗试验，并根据不确定交付/不确定数量（IDIQ）合同，以任务订单为基础制定研究方案。 需要新的避孕方法，可以提供有效的保护，防止意外怀孕，并减少静脉血栓栓塞（VTE）的风险，特别是对肥胖妇女。一种新的阴道环，可以提供高剂量的炔雌醇（Nestorone）和低剂量的雌二醇（E2），可以为妇女提供有效和安全的避孕。剂量探索研究的目的是确定可提供可靠避孕和可接受出血模式长达6个月使用的剂量。

The NICHD's Contraceptive Clinical Trials network conducts Phase I, II and III clinical trials of a wide variety of new female and male contraceptive methods. The objective of this contract is for CCTN contractors to conduct female contraceptive clinical trials, conduct treatment trials of gynecologic conditions, and to develop research protocols on a task Order basis under an Indefinite Delivery/Indefinite Quantity (IDIQ) contract. There is a demand for new methods of contraception that can provide effective protection against unintended pregnancy as well as reduce the risk of venous thromboembolism (VTE), particularly for obese women. A new vaginal ring that can deliver a high dose progestin (Nestorone) and a low dose of estradiol (E2) may provide effective and safe contraception for women. The objective of the dose finding study is to identify a dose that can provide reliable contraception and acceptable bleeding patterns for up to 6 months of use.