Active clinical trials for "Infertility"

The purpose of this study is to increase our understanding of infertility in women with Rheumatoid Arthritis (RA). In this study the study team will compare the differences in ovarian reserve (the ability to provide egg cells that are capable of fertilization), the frequency of ovulation and the number of pregnancies between women with and without RA. It is possible that RA activity and medications limit ovarian reserve and ovulation, which may increase infertility among women with RA. There are several suspected causes for infertility in RA, including age-related fertility decline, inflammatory changes that impact endometrial receptivity and discourage implantation, accelerated ovarian decline due to certain arthritis medications and increased frequency of anovulation (a menstrual cycle during which ovaries do not release an egg) due to RA activity. This study is the first step toward our long term goal of increasing the ability of all women with RA to build the family they desire.

While practicing the different assisted reproductive techniques, the investigators are faced daily by the problem of poor responder females, and the debate about predicting its results based on the outcome of the different ORTs used. Due to the cost of AMH as an indicator for ovarian response, the need to re-assess its role was essential in our community, which led us to conduct this prospective multi-center IVF study.

The aim of the study is to analyze the expression of genes and microRNAs potentially involved in oocyte competence in follicles of different sizes (<17mm and ≥17mm) at the time of oocyte pick-up.

The main objective of this study is to investigate the association between the presence of HPV infection in one or both members of infertile/sub-infertile couples and the outcome of pregnancies obtained by assisted reproduction. The success of assisted medical procreation is defined as achieving a pregnancy resulting in the birth of a living, viable child.

Purpose/Lay Summary: Background: - Chromosomes are the structures inside of each cell that carry our genetic material (genes). Certain differences in the sex chromosomes are known to cause various diseases, such as infertility, Turner syndrome, or Klinefelter syndrome. However, it is not fully understood why these differences are seen and what clinical findings may be caused with different sex chromosome variants. This study is seeking to learn more about the genetic and clinical characteristics of disorders related to the X and Y chromosomes. Objectives: - To study related medical conditions in people with sex chromosome variants. Eligibility: Patients with known sex chromosome differences may be eligible to participate. Healthy volunteers age 18 - 55 Design: Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. This study will last about 5 days. Participants will have a variety of endocrine and other tests. They will provide blood, urine, and semen samples for these tests. Imaging studies of the heart and abdomen will be performed. These tests may include ultrasounds and magnetic resonance imaging. Participants will also have their vision and hearing checked. Healthy volunteers with have a single day visit for a medical history, physical exam, and blood and skin samples. Treatment will not be provided as part of this study. Compensation is offered.

The purpose of this study is to demonstrate that the Eeva™ System is compatible with the Eeva 12-well Dish.

Background: - Primary ovarian insufficiency (POI) is a condition that affects ovary function. It means that the ovaries are not able to function at a level appropriate for a woman's age. Previously, it was thought that women had only a fixed number of eggs that were lost each month until none were left at menopause. However, recently, stem cells have been found in the ovaries of adult women. These stem cells may be able to make new eggs. Studying these cells may help women with POI in the future. Researchers want to collect ovarian tissue from women with POI to investigate ovarian stem cells. Objectives: - To collect ovarian tissue from women with primary ovarian insufficiency. Eligibility: - Women between 18 and 50 years of age with primary ovarian insufficiency. Design: Participants will be screened with a physical exam and medical history. They will also have a full gynecological exam. They will provide blood and urine samples. Participants will donate ovarian tissue for study. It will be collected through outpatient surgery. The surgery will take either half of an ovary or a full ovary. Treatment will not be provided as part of this study.

The present study aims to elucidate if there is a metabolomic profile alteration in the embryos of obese women in order to understand if the reduced implantation rate observed in these patients is directly related to this factor. Furthermore, the investigators seek to establish if there is any difference between obese women with Polycystic Ovary Syndrome (PCO) and without PCO. The investigators compare these metabolomic profile embryos with embryos of egg-donation programme.

This observational retrospective healthcare medical record review study is to evaluate and differentiate the clinical characteristics and outcomes in peritoneal dialysis (PD) patients with either endotoxin-associated sterile peritonitis (e-SP), bacterial peritonitis (BP) or no peritonitis (NoP) over a 12-15 month period from dialysis clinics in The Netherlands, Germany, Hungary, Portugal, and the United Kingdom (UK). The primary study objectives are to: Describe changes in the peritoneal membrane function and clinical outcomes over time between e-SP, BP and NoP PD patients. Describe and differentiate clinical characteristics during the acute clinical presentation of e-SP and BP. The secondary study objective is to: - Generate a dataset that will facilitate post hoc exploratory hypothesis-generation related to clinical and resource utilisation (RU) outcomes in association with e-SP.

The purpose of this investigational study is to find out what hormones are present in healthy male testicles using fine needle aspiration.