Active clinical trials for "Infertility"

Recent improvements in cell culture systems have led to a shift in in vitro fertilization (IVF) practice from early cleavage stage embryo transfer (ET) to blastocyst transfer. Blastocyst culture and transfer could theoretically provide better synchronization between the embryo and the uterine endometrium. The purpose of this study is comparing pregnancy rates and implantation rate following transfer of thawed cleavage embryos and blastocysts cultured from thawed cleavage embryos.

Follicular aspiration as well as follicular flushing are standardized techniques and have been practiced in polyfollicular IVF (in vitro fertilization) therapy for years. Monofollicular IVF therapy is a standard technique as well. IVF can be done in natural cycles or with a minimal stimulation with clomifen citrate to achieve a monofollicular response. Our study aims to compare follicular aspiration and follicular flushing in monofollicular stimulation. First the investigators want to answer the question whether flushing is beneficial for the oocyte yield. In case of a positive result the investigators want to establish a recommendation about the optimal number of flushings taking into account the duration of the procedure and the pain during manipulation.

To demonstrate a possible beneficial impact of pertubation we designed a randomized prospective study, in which uterine washing was administered prior to insemination in patients diagnosed with unexplained infertility.

The purpose of this study is to determine whether pre-treatment with danazol for at least 4 months before controlled ovarian hyperstimulation for IVF cycles improves pregnancy rate.

Intracytoplasmic Morphologically Selected Sperm (IMSI) is a modification of IntraCytoplasmic Sperm Injection (ICSI) with a choice of the spermatozoon to be injected done at a 6000x magnification instead of 400x commonly used in ICSI. The purpose of this study is to evaluate the efficiency and the indications of IMSI through a multicentric randomised trial.

The purpose of this study is to determine the performance of a genetic assay, GemART, in cumulus cells predictive of embryo viability, and pregnancy success in women undergoing in vitro fertilization (IVF). Performance is defined as success rate per embryo transferred, as measured by the implantation rate of embryos transferred.

In this study of endometriosis patients we compare a common treatment of surgical therapy and medical treatment for 3 months (Zoladex) with patients receiving only surgical therapy. In both cases they immediately start In Vitro Fertilization (IVF) treatment.

The study null hypothethesis is: intrauterine insemination (IUI) does not improve pregnancy rates in women with polycystic ovary syndrome. Infertile women with pcos will receive gonadotropins for ovarian stimulation and then randomize to either IUI or timed intercourse (TI)

The objective of this study was to evaluate the advanced maternal age as a rationale for performing intracytoplasmic morphologically selected sperm injection (IMSI). This prospective randomized study included couples undergoing intracytoplasmic sperm injection (ICSI) as a result of advanced maternal age (≥ 37 years old). Couples were randomly allocated to receive one of two sperm selection procedures (ICSI, n = 33; or IMSI, n = 33). The groups were compared with regard to fertilization rate, percentage of high-quality embryos, implantation, pregnancy and miscarriage rates.

To evaluate the impact of two FDA approved culture media on potential of human embryos resulting from IVF (sequential & monophasic media). Half of each patient's embryos will be randomly assigned to grow in monophasic media & the other half in sequential media. All embryos will undergo Comprehensive Chromosome Screening (CCS) & the best euploid embryo from each group will be transferred resulting in a double embryo transfer (DET). If there are only euploid embryos from one group, patient will have single embryo transfer (SET)(fresh or frozen).