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167 active trials for Pregnancy

Efficacy and Safety of Medication Used to Stimulate Ovulation

Individuals undergoing In Vitro Fertilization must undergo controlled ovarian hyperstimulation (COH) to produce enough quality eggs for fertility treatment. Ovarian follicular responsiveness to COH with gonadotropins is extremely variable between patients and even from cycle to cycle for the same patient. Achieving an ideal follicular response is critical to the success of assisted reproduction treatment (ART). Patients have been classified as 'poor', 'normal' or 'high' responders, which dictate the amount of gonadotropins that they receive. It is still important to develop treatments with high efficacy, lower multiple birth rates, and a lower complication rate for each of these groups. In an era of evidence-based medicine and with special emphasis on reducing IVF risks (mainly OHSS and pregnancies with multiples), it is very important to find optimal and safe ovulation induction and triggering regimens for each patient population. The use of GnRH agonist (GnRHa) triggering among high responders in order to reduce or eliminate OHSS is an example of an important breakthrough in the clinical management of IVF patients. Although GnRHa triggering was shown to be as effective as human chorionic gonadotropin (hCG) at inducing oocyte maturation more than 20 years ago, its use to trigger ovulation was not possible until the introduction of GnRH antagonists for pituitary suppression. Another prominent trend in ART in recent years has been the introduction of dual triggering, which involves a combination of GnRHa plus hCG for triggering. This regimen creates simultaneous lutenizing hormone (LH) and follicle stimulating hormone (FSH) surges by the GnRHa, which resembles physiologic ovulation triggering, together with sustained LH-like activity from the hCG, which stimulates the corpus luteum to excrete sufficient hormonal endometrial support. Since its introduction, dual triggering has been gaining popularity due to outstanding results in retrospective studies among both normal and high responders. Moreover, in spite of the encouraging retrospective reports, prospective randomized controlled trials (RCT) on dual triggering have not been reported to date. The aim of the current proposed study is to compare the efficacy of dual triggering and conventional triggering among the three IVF populations (high, normal and poor responders).

Start: October 2015
Chinese Pregnant Woman Cohort Study (Offspring Follow-up)

Purpose: To investigate the growth and development status for children of 1 ~ 3 years old in China, and to explore and analyze the influencing factors of infant growth. Mother's health status would also be investigated simultaneously. Methods and analysis: This is a multicenter prospective cohort study. Participants were all from the Chinese Pregnant Women Cohort Study (CPWCS), which is a multicenter prospective cohort study we conducted before. In simple terms, pregnant women during the first trimester (5~13 weeks' gestational age) were included from 25 July 2017 to 26 November 2018. Related information were collected by electronic self-administered questionnaire, including general information, environmental exposure assessment, physical activity assessment, dietary and nutritional assessment, depression assessment, sleep quality assessment and economic burden assessment. Subsequently, objective medical information, obstetric and neonatal outcomes were collected through hospital information system (HIS). To further assess the mothers' and infants' health status, a new multicenter prospective cohort study, including more than 1000 participants of the CPWCS from 5 hospitals of 5 different provinces in China, will be conducted. Through the electronic self-administered questionnaire surveys and laboratory testing methods, information about infants' feeding, sleeping, defecating, oral health, early development and common allergic diseases will be collected. And we will also assess mothers' current health habits and status, such as sleeping, diet, anxiety, physical activity, and oral health. SAS statistical software will be used for data analysis. Ethics and Dissemination Permission for the study was obtained from Chinese Academy of Medical Sciences and Peking Union Medical College. Ethics approval was obtained from the Ethics Review Committee of Department of Scientific Research, School of Basic Medicine, Peking Union Medical College, Beijing, China. The results will be published in peer-reviewed journals or disseminated through conference presentations.

Start: August 2020
The Effects of Exercise Training During Pregnancy

Pregnancy is a physiological event that lasts for an average of 280 days or 40 weeks, starting with the embryo formed by the combination of ovum and sperm ready for fertilization. Many anatomical, physiological, social and psychological changes occur in the mother's body during pregnancy. In order to better adapt to these changes and to minimize problems during pregnancy, it is very beneficial for pregnants who do not have medical or obstetric risk to increase their physical activity level and exercise. Training programs created in light of the physical activity guidelines prepared specifically for the gestation period during pregnancy should be followed. For this purpose, pregnant programs have been organized routinely as a group exercise two days a week in Hacettepe University, Physical Therapy and Rehabilitation Faculty, Women's & Men's Health Unit since 1990. The scope of this exercise program includes posture and body mechanics training, strengthening the lower and upper extremities, strengthening the abdominal and back muscles, pelvic floor exercises and breathing exercises. In one training session, 20 different exercises are performed and one session lasts about 60 minutes. For pregnant women with time limitations, sessions with less exercise and lasting about 30 minutes are held. Trainings are started in the 16th week of pregnancy and terminated in the 32nd week. Pregnant women who cannot participate in this group exercise program for personal reasons are given recommendations as home programs. In the literature; There is no specific guide on the type of exercise, intensity, and frequency of the exercise that can affect the thickness of the trunk stabilizer muscles during pregnancy, improve functionality and quality of life. With this study, it is planned to investigate the effects of the exercise protocol applied on the thickness, functionality and quality of life of the body stabilizer muscles in pregnant women who routinely participate in the short or long group exercise program, which starts from the 16th week of pregnancy until the 32nd week of the week. In addition, the pregnant women, who could not participate in the short or long group exercise program and started their home program until the 32nd week of pregnancy and made their routine follow-ups, will be evaluated in the 16th and 32nd weeks of pregnancy. At the end of this study; The change between body stabilizer muscle thickness, functionality and quality of life will be examined in three different groups, which continue routine short or long pregnant exercises and who can not participate in group exercise and follow up with the home program. In addition, data on trunk stabilizer muscle thickness, functionality and quality of life obtained from these three different groups will be compared. Thus, the literature will provide evidence of effective exercise protocols on trunk stabilizer muscle thickness, functionality and quality of life.

Start: February 2020