Active clinical trials for "Primary Ovarian Insufficiency"

In this study, the investigators used the newly developed technique i.e. in vitro activation of dormant follicles (IVA) to promote ovarian follicle growth much more efficiently than natural, in vivo process for women with Primary Ovarian Insufficiency (POI).Firstly, the investigators remove one ovary under laparoscopic surgery. Then, we dissect ovarian cortex from the ovarian medulla. The ovarian cortex is cut into small cubes and cultured with medium containing drugs to activate dormant follicles. After 2 days of culture, the ovarian cubes are transplanted mainly beneath the membrane of Fallopian tubes under laparoscopic surgery. The ovarian cortex could be cryopreserve for future re-transplantation and in some cases, for convenience to arrange second surgery. Once frozen, the ovary can be preserved semipermanently. After transplantation, patients receive ultrasound monitoring together with measurement of serum hormone levels for 10-12 months. If growing follicles are detected, follicle growth is stimulated by injection of hormones (gonadotropins). Using the same "ovum pick up" approach used in IVF (in vitro fertilization), we pick up oocytes from the follicles and fertilize them. Fertilized eggs are cultured and then cryopreserved for future embryo transfer. Currently, we recurit patients diagnosed with POI, or Ovarian resistance syndrome (ORS). The procedure can also be: Only superficial cut of the ovarian cortex by laparoscopy or laparotomy, without taking ovary outside or cultured with medium.

The aim of the study is to investigate whether inactive FSH plays a role in the development of Premature Ovarian Failure in women with Classic Galactosemia

Aim: To evaluate plasma/urine/hair Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni) levels in women with premature ovarian insufficiency (POI) and to compare the results with those of healthy subjects. Methods: This prospective study will be included 50 women with idiopathic premature ovarian insufficiency and 50 controls. The blood/urine/hair for analyses will be obtained at the early follicular phase of the menstrual cycle and plasma Lead (Pb), Cadmium (Cd), Gadolinium (Gd), Arsenic (As), Mercury (Hg), Cobalt (Co), Vanadium (V), Titanium (Ti), Sulfur (S), Chromium (Cr), Silver (Ag), Molybdenum (Mo), Boron (B), Lithium (Li), and Nickel (Ni) levels will be measured using inductively coupled plasma-mass spectrometry.

To collect data of clinical, biochemical and 3D-ultrasonographic parameters of a population of fertile women aged 18-55 in order to design a new algorithm able to predict ovarian age and to evaluate the reliability of a multimodal diagnostic evaluation of ovarian age in term of both reproductive prognosis and distance to menopause following the guidelines of the Standards for Reporting of Diagnostic Accuracy initiative (STARD)

The investigators wish to explore the variability of uterine, breast and bone outcome markers as surrogates to assess the adequacy of exogenous oestrogen replacement in individuals with hypogonadism.

This study focuses on the phenotyping and genotyping of women with hypergonadotropic ovarian dysfunction (WHO III status).

100 women with primary ovarian insufficiency will be included for extensive diagnostic workup to improve diagnostic precision by extended autoantibody screening and genetic and toxicological testing.

Premature ovarian failure (POF) is a rare condition, affecting 1 in 10,000 women before age 20 and 1 in 1,000 women before age 30. The two main causes of POF are congenital and acquired. Patients with POF who carry out the desire to have a child turn to medically assisted reproduction through oocyte donation or to adoption. The main endpoint of this study is to compare the desire to have children among women with premature ovarian failure (POF) aged 18 to 26 years vs. controls of the same age (stratified by age) without major menstruation disorder.

The purpose of this research is to develop a predictive nomogram for primary ovarian insufficiency.

Reduced ovarian reserve and the consequent poor ovarian response are very recurent in infertile patients, indeed a percentage of 10%-24% of couples addressed to infertility program may be classified as Poor Ovarian Responder (POR). Objective: To evaluate whether the repeated luteal phase stimulation (Second Step) permits a significantly higher number of oocytes retrieved in POR when compared to conventional follicular stimulation. Interventions: The follicular phase stimulation is conduced according to a standardized Antagonist protocol or Short protocol (with GnRH agonist) using recombinant or urinary gonadotropins (starting dose 300 or 450 UI) or a long lasting recombinant gonadotropin (Corifollitropin alfa 150 mcg). Two - six days after the first oocyte retrieval a second gonadotropin stimulation will be started with a GnRH antagonist protocol (the stimulation will be started with 250 UI of human menopausal gonadotropin (hMG) and a GnRH antagonist (GnRH-an) 0,25 mg\die will be administered when the leading follicle is ≥ 14 mm until hCG (human chorionic gonadotropin) criteria are met. When at least two follicles had reached 17-18 mm in diameter, ovulation will be triggered with a single subcutaneous bolus of urinary human chorionic gonadotropin (10.000 UI ) and oocyte retrieval will be performed after 35 hours. Two or Three months after the second oocyte retrieval the Embryo transfer (ET) will be performed after endometrial preparation with Estradiol Valerate and intramuscular Progesterone.