View clinical trials related to Contraception.
Filter by:Contraceptive failure is the primary cause of unintended pregnancy in the United States. With obesity rates at epidemic proportions, any association between obesity and strategies that prevent undesired pregnancies constitutes a significant public health and economic concern. Evidence from recent epidemiological studies and our preliminary data (sub-therapeutic levels of steroid hormones due to drug clearance and half-life) suggest that obesity reduces oral contraceptive efficacy. Furthermore, preliminary analysis suggested that a sub-group of obese women, defined by their own birth weight, are at higher risk of contraceptive failure. Further studies are necessary to investigate whether birth weight, a surrogate marker of in utero growth restriction, is a useful diagnostic marker for the identification of women prone to contraceptive failure. Such an understanding is critical to finding a contraceptive strategy with better efficacy for these women. The overall goal of this project is to test pharmacokinetics of oral contraceptive agents in obese women with low birth weight and compare to obese women with normal birth weight. The main hypothesis for this proposal is that an adverse in utero environment programs the expression and function of enzymes and transporters that underlie pharmacokinetics of oral contraceptives, and leads to contraceptive failure. Reproductive-aged, ovulatory women of obese BMI >30 kg/m2 with normal birth weight (5.5-8 lbs; n=10) and low birth weight (<5.5 lbs; n=10), will be placed on oral contraceptives for 1 month. At several key time points, synthetic steroid pharmacokinetics, gonadotropins (luteinizing hormone, follicle-stimulating hormone) and ovarian hormone levels (estradiol, progesterone) will be monitored.
The purpose of this study was to assess the contraceptive efficacy of a nomegestrol acetate + 17ß-estradiol (NOMAC-E2) combined oral contraceptive (COC) in healthy, sexually-active American women at risk for pregnancy. Vaginal bleeding patterns of women taking NOMAC-E2 were assessed and compared to those of women taking a norethisterone acetate + ethinyl estradiol (NETA-EE) COC. The safety of NOMAC-E2 was also assessed. Participants were randomized to receive either NOMAC-E2 or NETA-EE in a 3:1 ratio. As of Amendment 1 (which increased the sample size of the NOMAC-E2 group), the randomization ratio was adapted accordingly for participants randomized after the sample size increase.
This is randomized controlled trial designed for pregnant women who deliver vaginally at the University of Louisville Hospital and desire to have an intrauterine device (IUD) inserted for postpartum contraception. After informed consent is obtained, eligible study participants will be randomized to receive the Mirena® IUD at the 6 week postpartum visit or within 10 minutes of delivery of the placenta following a normal vaginal delivery. The investigators seek to determine the expulsion rate and complication rate in subjects with IUD immediately after placental delivery compared to insertion at six weeks postpartum or later. The investigators hypothesize that immediate placement safe and has an acceptably low expulsion rate to merit earlier placement in the indigent population.
Women who have just given birth are at high risk for rapid repeat pregnancy, which can lead to negative consequences during the subsequent pregnancy. Providers have traditionally delayed starting birth control, especially placement of intrauterine devices (IUDs), post-delivery for a number of reasons. The first postpartum visit after a woman has given birth is typically scheduled for 6 weeks after her delivery, during which she is typically provided with her chosen method of birth control. This study will evaluate two different IUD placement times: 3 weeks and 6 weeks after delivery. This will allow the researchers to determine if placement time affects a woman's follow-through obtaining the IUD and keeping it inserted in place. The researchers will also look at bleeding patterns and patient/provider satisfaction with the IUD placement
Over the last several years, more and more women are choosing intrauterine contraception (IUDs) to meet their birth control needs. The effectiveness of IUDs is very similar to tubal sterilization, with an overall unintended pregnancy rate of less than 1% in the first year, and lower failure rates in subsequent years. Intrauterine contraception has many attributes besides its effectiveness; it is easily reversible, has a low side-effect profile, and provides a long-term solution for contraception (10 years for the copper T380 and 5 years for the levonorgestrel IUD). In addition, using an IUD for birth control requires little on-going effort by the woman to be effective and offers immediate return to fertility with its removal. The biggest increase in users is among nulliparous women (women who have not had children), due to increased awareness of the safety of modern IUDs in this population, and the many benefits of the method. In fact, The copper IUD (Paragard) is now FDA approved for use in nulliparous women, and the American College of Obstetricians and Gynecologists supports the use of both copper and levonorgestrel IUDs in nulliparous women. The cervix of a nulliparous woman has a smaller diameter which can lead to more difficult and uncomfortable IUD insertions. Many providers avoid offering IUDs to nulliparas because of fears that the procedure will be more difficult, and may require cervical dilation, placement of a paracervical nerve block, or placement under ultrasound guidance, none of which are standard for parous women. The medication misoprostol is a prostaglandin E1 analog. Because of misoprostol's known ability to cause cervical dilation, some family planning providers give their nulliparous patients a dose of this drug prior to IUD insertion. Misoprostol is commonly used to dilate the cervix for similar procedures as in first trimester abortions, hysteroscopy and endometrial biopsies. Its efficacy in cervical priming for IUD insertion is unknown, and some concern exists that uterine contractions caused by the drug may lead to device expulsion or displacement. In this study, the investigators propose to ask nulliparous women who have undergone contraceptive counseling and decided to use an IUD for birth control to be randomized to the use of misoprostol or placebo prior to their scheduled IUD placement.
The primary objective of the investigators study is to determine if there is a difference in continuation rates at six months in women who are randomized to have the Levonorgestrel Intrauterine System (LNG-IUS) inserted at two possible time periods: Immediate (defined as after delivery of placenta to 72 hours postpartum) or Interval (defined as after 6 weeks postpartum).
This is a randomized control trial of Ortho tricyclen versus Trinessa (generic equivalent) to determine if they have similar effects. Women will be randomized to receive either Ortho tricyclen or Trinessa oral contraceptives and will be asked to keep a daily dairy of any symptoms or bleeding experienced. Once a month, participants will be asked to complete a survey. The objective is to compare generic oral contraceptives (OCPs) and brand name OCPs with respect to side effect profiles including bleeding patterns, mood changes, nausea and vomiting, frequency of menstrual cramps, breast tenderness, elevation in blood pressure, stroke, blood clots and patient compliance.
Investigation of two transdermal hormone patch formulations for contraception regarding inhibition of ovulation over a period of 3 treatment cycles in healthy young female volunteers
This study will be a randomized, controlled multicenter trial, conducted jointly by the Indian Council of Medical Research, New Delhi and Family Health International, which will compare three vasectomy occlusion techniques, all using the no-scalpel vasectomy (NSV) approach to isolation of the vas: 1. ligation and excision of about 1 cm of the vas, with fascial interposition; 2. intraluminal thermal cautery with excision of about 1 cm of the vas; 3. intraluminal thermal cautery with excision of about 1 cm of the vas combined with fascial interposition. A total of 1500 healthy, sexually active men at least 21 years old who have chosen vasectomy as a means of contraception will be recruited at four to six study sites in India. The success of the vasectomy procedure will be determined based on semen analysis results. All men should have semen analyses at 8 and 12 weeks post-vasectomy. All men will be asked to attend a final visit at 12 months.