Active clinical trials for "Infertility"

Corticosteroids have been indicated to treat men with ASAs. Although many studies have confirmed the clinical therapeutic significance of corticosteroids in the treatment of men with ASAs, other studies have not found a therapeutic significance for corticosteroids in the treatment of men with ASAs. Moreover, although some reports have shown high fertilization and conception rates in couples when husbands did not have ASAs, other reports have shown that ASAs do not have a negative effect on fertilization and conception rates. These contradictory results have left the therapeutic effect of corticosteroids in men with ASA in continuing controversy. This controversy is also extended to include the usefulness of assisted reproductive technology (ART) in the treatment of patients with ASAs. In this regard, although some studies have shown that the pregnancy rate following in vitro fertilization (IVF) or intracellular sperm injection (ICSI) were similar in men with or without ASA or did not associate with ASA, others reported the superiority of ICSI over IVF and intrauterine insemination over natural intercourse in men with ASAs. It is possible that some patients with ASAs also have an additional problem(s) related to sperm binding to the oolemma and fusion into the ovum as well as sperm head decondensation. The latter condition may negatively influence or mask the clinical significance of corticosteroids on pregnancy rates in patients with ASAs. Some patients might not have benefited from corticosteroids and conventional IVF treatments due to the impaired sperm fusogenic capacity in addition to ASAs. Human sperm penetration assay (SPA), of the hamster oocyte free from zona pellucida, is a sensitive tool that can address such potential impairment of sperm binding with the oolemma and fusion into the oocyte as well as sperm head decondensation. Males with poor SPA results benefit from ICSI whereas those with good SPA results can still benefit from conventional IVF. The present study was therefore conducted to address the therapeutic usefulness of a corticosteroid named prednisolone in the treatment of immunologically infertile men undergoing IVF or ICSI determined by SPA.

This project seeks to determine whether estradiol suppression achieved with adjuvant treatment with an aromatase inhibitor improves end-follicular and midluteal phase parameters during IVF. 128 patients will be randomized to either placebo or active treatment.

The purpose of this study is to assess the efficacy of LMWH treatment in women with unexplained infertility and negative immunological markers undergoing ICSI.

Repeated implantation failure（RIF） is a insurmountable bottleneck in assisted reproductive technology, many studies have considered that the cause of two-thirds of implantation failure is the decreased endometrial receptivity. After exclude some major local immune factors(NK,CD138 cells) and implantation window out of phase, There are still a part of patients infertile .Human chorionic gonadotropin (hCG) is an early pre-implantation signal molecule secreted by the embryo, it can promote endometrial proliferation, increase blood flow and promote embryonic adhesion and inhibit self-regulated apoptosis of trophoblast cells. Previous studies showed that: intrauterine injection of HCG before embryo transfer can improve clinical outcomes in IVF/Intracytoplasmic sperm injection(ICSI). But some studies found that the intrauterine injection of HCG can not significantly improve the success rate of blastocyst transfer, and the reason may be the intrauterine injection of HCG time is too late to significantly increase the implantation rate. Would ahead of intrauterine injection of HCG be more effective? Thus, the patients of repeated implantation frozen embryo cycle according to the random principle accepted two kinds of transplants ways: ①intrauterine injection of HCG before blastocyst transfer; ②blastocyst transfer. Try to understand whether intrauterine injection of HCG can significantly improve the clinical pregnancy rate of blastocyst transfer in repeated implantation failure patients.

The aim of study is to assess the possible impact of assisted hatching on delivery rate after transfer of vitrified-warmed human blastocysts.

In IVF/ICSI cycles, the progesterone levels induced by ovarian stimulation are low, therefore the luteal phase is supported by progesterone. The use of progestogens in IVF is associated with an improvement in the live birth rate Standard protocol for luteal phase support has not yet been established. Currently vaginal progesterone is widely used, since the classic oral progesterone seems to result in a low bioavailability and a lower pregnancy rate. However, vaginal administration of progesterone is associated with vaginal irritation, discharge and bleeding. For all these reasons, there is a need for an effective, well tolerated, and safe treatment that can improve patient satisfaction and compliance. Many studies have observed similar pregnancy rate results with dydrogesterone and micronized vaginal progesterone. A new RCT including a total of 1143 patients by Tournaye, showed that dydrogesterone treatment had a similar safety profile to micronized vaginal progesterone (MVP) for luteal support as part of ART treatment. The crude pregnancy rates at 12 weeks were 37.6% and 33.1% in the dydrogesterone and MVP treatment groups respectively. Regarding the administration route of progesterone, intramuscular and transvaginal routes are the two conventional progesterone administration techniques. However, very few studies have compared the advantages of oral dydrogestrone with vaginal progesterone for luteal support in ART cycles. The objective of the investigator's study is to demonstrate the superiority of oral dydrogesterone (Duphaston) 10 over MVP (Utrogestan) used for luteal supplementation in cryo-warmed embryo transfer cycles. Upon consent, 224 patients women will be randomly allocated into either one of the study groups using a simple randomization method by computer-generated random numbers. Group I will receive the oral dydrogesterone, while group II will receive the vaginal microprogesterone.

The present study is designed as a pilot study with 50 patients in each group. Data collection form will be filled by the researcher who does not know the type of intervention in each group

study the effect of aromataze inhibitor induction together with short stimulation protocol by gonadotrphin releasing hormon antagonist in cases that expected to be poor responder before ICSI

This is a randomized-controlled trial evaluating the effect of the use of hyaluronan (HA)-enriched embryo transfer medium on the live birth rate in women undergoing frozen-thawed embryo transfer. For half of the women, hyaluronan-enriched medium will be used as embryo transfer medium. For the other half of women, a control will be used.

The study evaluated the safety and efficacy of the progesterone-primed ovarian stimulation (PPOS) coupled with gonadotropin (FSH) for infertile women with polycystic ovary syndrome (PCOS) who were assigned for ICSI and frozen blastocyst transfer. 200 infertile women were divided randomly into Group C, which received Cetrorelix injection (0.25 mg daily) on day-6, and Group S, which received oral dydrogesterone (20 mg/day) on day-2 of the menstrual cycle till the trigger day. All patients received an FSH injection of 225 IU daily from day-2 till triggering day. ICSI was performed and day-5 blastocysts underwent vitrification ultra-rapid cryopreservation till being transferred. Outcomes included the ability of PPOS to suppress the premature luteinizing hormone (LH) surge and prevent the development of ovarian hyperstimulation syndrome (OHSS), the incidence of profound LH suppression, the number of retrieved M2 oocyte and fertilization, chemical and clinical pregnancy rates, and the miscarriage rate.