Clinical Research Directory

Ovarian Tissue Allo-transplantation

Premature ovarian failure, also known as primary ovarian insufficiency (POI), or premature menopause, affects 1-2% of women under 40. The diagnosis is typically made based on high levels of follicle stimulating hormone (FSH) and absent or irregular menstrual periods. It leads to infertility and menopause-like effects (hot flashes and thin bones) due to low estrogen levels. POI can result from various factors such as genetic conditions, autoimmune diseases, or previous medical treatments like chemotherapy. Treatment of POI usually involves hormone replacement therapy and, if pregnancy is desired, assisted reproductive technologies such as in vitro fertilization (IVF) using an egg donor. However, IVF may not be an option for everyone due to personal, religious, ethical or financial reasons. Recent advances in medicine have identified ovarian tissue transplantation (OTT) as a potential solution. OTT involves transplanting either fresh or frozen ovarian tissue into the pelvic area, where it can begin functioning again. Studies in animals and humans have shown success in restoring hormonal function and even achieving pregnancies in some cases. Initial human trials of ovarian tissue transplants from another individual began with identical twins and have since expanded to include non-identical siblings with compatible tissue matches using immunosuppression. Success rates of OTT have been promising, with multiple live births reported between identical twins. Long-term studies indicate that transplanted tissue can remain functional for up to eight years. Ovarian tissue transplantation offers a promising avenue for women with POI to help restore fertility and hormonal function. Continued research and refinement of tissue techniques are essential to improve outcomes and expand access to this innovative treatment option. This study will enroll 10 participants who will undergo ovarian tissue transplantation donated by a non-identical sister using an immunosuppression protocol at University Hospitals.

Autonomic Regulation of Blood Pressure in Premature and Early Menopausal Women

This is a cross-sectional study in which the investigators will determine the impact of premature/early menopause on MSNA, BP and baroreflex sensitivity in younger (≤49 yr old) and older (≥50 yr old) women. Specifically, aim one will determine mechanisms driving autonomic dysregulation of BP in premature and early menopausal women and aim two will determine mechanisms driving autonomic dysregulation of BP in older menopausal women. The study design outlined below will permit testing of aim one and aim two.

Autologous PRP Infusion May Restore Ovarian Function and May Promote Folliculogenesis in POI Patients

Autologous PRP intra ovarian infusion may restore ovarian function, may promote folliculogenesis and may improve patients' hormonal profile in patients presenting with POI.

A 3D Bioprinted Hormone-producing Model for BRCA Mutated Patients After Risk Reducing Surgery: the DISC-OVARY Trial

Selecting theca and granulosa cells from removed ovaries of BRCA1/2mut patients undergoing Risk-reducing salpingo-oophorectomy (RRSO) and developing a 3D bioprinted hormone-producing bioprosthetic model. If efficacy and tolerability are confirmed in vivo, this bioprosthetic model might be used to replace hormones' production in BRCA mutated patients undergoing prophylactic surgery.