Development of Nanovectors to Prevent Placental Passage of a Tocolytic Agent
试验速览
- 阶段
- 不适用
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- Uterine contractions
研究概览
简要总结
The purpose of the study is to find out whether indomethacin encapsulated within a nanovector can stop contractions in pregnant human uterine tissue. Preterm delivery is a major contributor to newborn deaths. The treatment of preterm labor includes medications that stop contractions within the uterus, or womb. Indomethacin is effective in stopping uterine contractions, but crosses the placenta to the unborn baby causing problems for the baby. Nanovectors are used to direct the delivery of medications. If indomethacin can be delivered directly to the uterus using a nanovector, it may be an ideal medication to treat preterm labor. We hypothesize that nanovectors loaded with indomethacin will reduce uterine contractions.
详细描述
This is a prospective observational study.
Subjects will undergo a biopsy from the middle of the upper margin of the uterine incision measuring 4 x 2 x 2 cm. This will be performed by the managing doctor at the time of cesarean section after delivery of the baby. Once the tissue is obtained, the site will be closed using sutures similar to the usual closure of the uterus at cesarean section. This biopsy will be taken to the laboratory to test whether the nanovector will increase or decrease contractions in the uterus. Once this test is finished, the tissue will be frozen and test for the absence or presence of the nanovector within the tissue.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 49 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Pregnant women undergoing elective cesarean section who are greater than 37 weeks
排除标准
- •Known infection
结局指标
主要结局
Uterine contractions
时间窗: 3 hours
Uterine biopsies obtained from subjects will be placed in a specimen chamber that measures uterine contractility. Mean contractile intensity will be determined before and after exposure to oxytocin, indomethacin, liposomes and liposome indomethacin.
次要结局
未报告次要终点
研究者
Jerrie Refuerzo
Associate Professor
The University of Texas Health Science Center, Houston