View clinical trials related to Assisted Reproductive Techniques.
Filter by:A combination of follicular phase stimulation and luteal phase stimulation in the same cycle, can be a valuable choice in poor responder patients with reduced ovarian reserve, in order to achieve extreme the number of oocytes in a single menstrual cycle. In the present study, the results of two different Double stimulation cycles including shanghai protocol and Duostim protocol in patients with reduced ovarian reserve, compared with each other to help select a more appropriate treatment for this group of patients. The number of retrieved oocytes and the number of obtained embryos and clinical pregnancy from each protocol will be compared as the primary and secondary outcome.
The main objective of this study is to compare the cumulative ongoing pregnancy rates of two different IVF protocols in women candidate for ART characterized by low prognosis.
Assisted reproductive techniques (ART) is very framed in France by principles initially stated by the french CECOS Federation of (Centre d'Etude et de Conservation des Oeufs et du Sperme) and then included in the bioethic law. Since 1973, more than 50 000 births have been achieved through sperm donation, and the investigators have little knowledge of what information parents pass on to their children about how they have conceived. However, it is accepted that the secrecy about the use of donated gametes has negative consequences. The investigators propose an original project never initiated in France, to evaluate at the national level the disclosure to the people conceived using donated gametes, thanks to an interdisciplinary research crossing medical approach (biology, psychology) and social sciences (anthropology, sociology). It uses a quantitave and qualitative approach relying on one hand on online questionnaires and on the other hand on semi-structured interviews, aimed at parent who have used ART with donated gametes and people conceived using donated gametes. This dual approach will outline broad trends in sharing information about the use of donated gametes, explore in depth the motivation of parental choices for information, and better understand the family and biographical dynamics associated with information sharing or its absence. Moreover, this project will lead to evaluate the way in which the parents received the messages of the professionnals involved in ART with donation gametes, in terms of disclosure to offspring. The conclusions will highlight the most important elements that will be useful to the professionnals involved in gamete donation to help them improve their practices upstream, during, and after the completion of the ART with gamete donation.
In vitro fertilization (IVF) is associated with an increased risk of venous thromboembolism and in particular pulmonary embolism during the first trimester. It is not known whether this increased risk of pulmonary embolism is present both after fresh and frozen embryo transfer. Objective: To assess whether the risk of pulmonary embolism and venous thromboembolism during the first trimester of IVF pregnancies is associated with both fresh and frozen embryo transfer. A population-based cohort study with linked data from nationwide registries on women in Sweden giving birth to their first child 1992-2012
Superovulation will be conducted with 100 mg of oral clomiphene citrate (Clomifene; Young Poong Pharmaceutical, Incheon, Korea) for 5 days starting on day 3 of the menstrual cycle, followed by daily injection of 150 IU of human menopausal gonadotropin (hMG;Menogon; FerringPharamceutical Co, Germany). When more than 2 dominant follicles reached a diameter of 17 mm or the urinary specimen showed positive results for luteinizing hormone (LH) surge, 5000 IU of hCG (Pregnyl; Organon, Oss, the Netherlands) was injected intramuscularly.
The aims of this study are to evaluate: 1. the possible effect of time-lapse culture from day zero (day of oocyte retrieval) on fertilisation rates and embryo quality in standard IVF. 2. the association between PIF status in embryo culture medium and embryo quality assessed by standard subjective parameters and morphokinetic development.
This is a multicenter, multi-national, randomized, open-label comparative trial. After screening, the subjects will start down-regulation treatment on Day 21-22 of the cycle. Down-regulation treatment will start within 2 months following the screening visit. The routine long luteal phase protocol for gonadotropin-releasing hormone (GnRH) agonist treatment will be followed. Once down-regulation has been confirmed, a pregnancy test will be performed just before randomization and start of recombinant human follicle-stimulating hormone (r-hFSH) treatment to rule out any pre-existing pregnancy. If the result is negative, the subject will be randomly assigned to one of the two treatment arms of the trial: - GONAL-f®: (Liquid Pen; 300 international unit [IU] of per day) stimulation Day 1-5 followed by Pergoveris® (vial/powder, 300 IU per day) from stimulation Day 6 and until required recombinant human chorionic hormone (r-hCG) criterion is met. The dose can be adjusted from stimulation Day 6 (increased or decreased) based upon the subject's ovarian response and according to the center's standard practice. - Pergoveris®: (vial/powder, 300 IU per day) from stimulation Day 1 and until required r-hCG criterion is met. The dose can be adjusted from stimulation Day 6 (increased or decreased) based upon the subject's ovarian response and according to the center's standard practice. Randomization across the two treatment arms will be kept balanced in a 1:1 ratio. Follicular development will be monitored according to the center's standard practice by ultrasound (US) and/or estradiol (E2) levels, until the protocol r-hCG requirement is met (i.e., at least one follicle greater than or equal to [>=] 18 millimeter [mm] and two follicles >=16 mm). After this, a single injection of r-hCG will be administered in order to induce final oocyte maturation. At a time of 34-38 hours after r-hCG administration, oocytes will be recovered vaginally under US monitoring. Oocytes will then be fertilized in vitro and embryos replaced 2-5 days after oocyte recovery. Ovum pick up (OPU), in vitro fertilization (IVF), embryo transfer (ET) and luteal support will be performed as per center's standard practice. A post-treatment safety visit will be performed for all subjects who received r-hCG (pregnant and non- pregnant) on Day 15-20 post-hCG. For subjects who have withdrawn from treatment (i.e. after starting Pergoveris® or Gonal-f® but before hCG is given) this visit will take place 20-30 days after their first Pergoveris® or Gonal-f® treatment injection (excluding pregnancy testing).