View clinical trials related to Ovulation Disorder.
Filter by:Rationale: There is some information suggesting that a progesterone-induced withdrawal bleeding before the start of ovulation induction in women suffering from oligo- or amenorrhea reduces pregnancy and live birth rate. Objective: To evaluate the effects of withholding progesterone-induced endometrial withdrawal bleeding before ovulation induction on the time to pregnancy and the ongoing pregnancy rate. Study design: Prospective multicenter randomized controlled feasibility study Study population: Women with oligomenorrhea or amenorrhea according to WHO classification category 2 Intervention: Patients will be randomized to receive one of the following two treatments: Stair step group: blind start ovulation induction (no progesterone induced withdrawal bleeding and stair step protocol in case of treatment failure. Control: standard care; a progesterone induced withdrawal bleeding in case of no spontaneous menses before starting an ovulation induction cycle and in between anovulatory cycles. Main study parameters/endpoints: The primary endpoints are the time to pregnancy and ongoing pregnancy rate within a treatment horizon of 3 cycles. Secondary endpoints include time to ovulation, endometrial thickness, multiple pregnancy and the incidence of treatment failure. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The number of site visits or physical examinations will not differ from accepted clinical practice.
The management of the poor responder patients is very difficult. Currently, there is no any standard treatment for poor responder patients. The study is designed to test a modified GnRHa protocol for poor ovarian response, low dose GnRHa early luteal phase down regulation, compare with GnRHa ultra-short protocol. This is a randomized controlled trial.
In women being treated with medicines to help eggs to grow (called ovulation induction), The investigators wish to know whether adding medicines (called ovulation triggers) that help to release the egg (ovulation) would lead to more women having babies without causing harm compared with not giving them ovulation triggers.
The purpose of the study is to establish that sustained estrogen levels are the driving force for the LH surge, and are thereby necessary for ovulation to occur. We predict that by reducing levels of circulating estrogen, letrozole, an aromatase inhibitor, will inhibit ovulation from occurring.