| Not Yet Recruiting | AI-TOP Study Artificial Intelligence for Trigger Optimization. Infertility, Ovarian Stimulation, Artificial Intelligence | N/A | 2026-04-01 |
| Recruiting | Effect of Semaglutide on Embryo Quality in Overweight and Obese Patients Undergoing In Vitro Fertilization. Infertility, Obesity | Phase 4 | 2026-01-19 |
| Not Yet Recruiting | Intranasal Nafarelin For Triggering Oocyte Maturation Fertility Disorders | Phase 4 | 2025-03-15 |
| Recruiting | Intraoperative Ultrasound in Bowel Deep Endometriosis Deep Infiltrating Endometriosis With or Without Bowel Involvement | — | 2025-01-20 |
| Completed | Performance Evaluation of the ex Utero Cord Blood Collection Technique: Procedure, Quality and Results Umbilical Cord Blood | N/A | 2023-09-01 |
| Completed | The Voice Analysis as a Preoperative Prediction Method of a Difficult Airway Difficult or Failed Intubation, Voice, Laryngoscopy | — | 2020-03-01 |
| Completed | Micronized Progesterone vs Gonadotropin-releasing Hormone (GnRH) Antagonist in Freeze-all IVF Cycles. Infertility, IVF, Preimplantation Diagnosis | N/A | 2019-09-25 |
| Completed | The Effects of Microgravity on Human Sperm Semen Quality | N/A | 2018-11-20 |
| Completed | Effect of Intervention on Progesterone Levels Before Euploid Embryo Transfer in Pregnancy Outcomes. Infertility, Progesterone, Frozen Embryo Transfer | N/A | 2018-11-15 |
| Completed | Luteal Phase-start Ovarian Stimulation With Corifollitropin Alfa Infertility | N/A | 2018-05-08 |
| Terminated | Clinical Outcomes of Slow Developing Blastocysts Infertility | N/A | 2017-12-01 |
| Completed | Progesterone Variation on the Final Day of Oocyte Maturation. Controlled Ovarian Stimulation, Progesterone Variation on Trigger Day, Circadian Rhythm | — | 2017-11-01 |
| Completed | Mucus Removal Before Embryo Transfer Infertility, Embryo Transfer | N/A | 2017-10-20 |
| Terminated | Transfer Strategy in an Oocyte Donation Programme Oocyte Donation, Infertility, Female, Embryo Transfer | N/A | 2017-04-05 |
| Completed | Genetic Variation in Gonadotropin and Gonadotropin Receptor Genes and Suboptimal Response Fertility Disorders | — | 2016-11-01 |
| Withdrawn | Desogestrel (DSG) and Corifollitropin(FSH-CTP) Alfa for Ovarian Stimulation in Donors Infertility | Phase 4 | 2016-05-01 |
| Withdrawn | Recurrences After Surgery for Deep Endometriosis Depending on the Involvement of the Surgical Margins in the S Deep Endometriosis, Recurrences, Margins in the Specimen | — | 2016-04-01 |
| Completed | Desogestrel (DSG) and Corifolitropin (FSH-CTP) Alfa for Ovarian Stimulation in Donors Controlled Ovaria Stimulation | — | 2016-01-01 |
| Terminated | Testosterone TRANSdermal Gel for Poor Ovarian Responders Trial Infertility, Poor Ovarian Response | Phase 3 | 2015-04-01 |
| Completed | Corifollitropin Alfa on D5 Versus D7 After Contraceptive Pill Oocyte Donation | Phase 4 | 2015-02-01 |
| Withdrawn | Direct Trocar Entry Versus Veress Needle Entry in Laparoscopic Gynecological Surgery Laparoscopic Gynecological Surgery | N/A | 2015-01-01 |
| Completed | Oocyte Recipient's Decision in the Number of Embryos to be Transferred Decision Making, Infertility, Female, Counseling | N/A | 2014-10-01 |
| Completed | Circulating Androgen Levels Are Not Affected by the Administration of Vaginal Micronized Progesterone for With Anovulation, Polycystic Ovary Syndrome, Hyperandrogenism | N/A | 2014-02-01 |
| Completed | Estradiol, Progesterone and Endometrial Thickness in Frozen Euploid Embryo Transfer Infertility, Preimplantation Genetic Diagnosis/Screening, Miscarriage | — | 2014-01-01 |
| Completed | Cumulative Live Birth Rates in Patients With Repeated Implantation Failure (RIF) Undergoing Preimplantation Ge Infertility, Preimplantation Genetic Screening | — | 2014-01-01 |
| Completed | The Transition From Blastomere to Trophectoderm Biopsy: Comparing Two PGS Strategies Infertility, Preimplantation Genetic Screening | — | 2014-01-01 |
| Completed | 0.2 ml vs. 0.5 Inseminated Volume in Donor Intrauterine Insemination Cycles: A Prospective RCT Infertility, Infertility, Male, Same-Sex Marriage | N/A | 2013-03-01 |
| Completed | Anti-Müllerian Hormone is Not Predictive of Pregnancy in Donor Insemination Cycles in Non-infertile Women Infertility | — | 2013-01-01 |
| Completed | Evolutive Potential of Embryos Obtained From Oocytes After Luteal Phase Ovarian Stimulation INFERTILITY, Fertility Preservation, Ovulation Induction | N/A | 2012-07-01 |
| Terminated | Growth Hormone (GH) in in Vitro Fertilization (IVF) Poor-responder Patients Complications; Artificial Fertilization, Introduction of Embryo in Embryo Transfer | Phase 2 | 2011-02-01 |
| Terminated | Single Embryo Transfer vs. Double Embryo Transfer in an Oocyte Donation Programme Infertility, Oocyte Recipient, Single Embryo Transfer/Double Embryo Transfer | N/A | 2010-10-01 |
| Terminated | Polycystic Ovary Syndrome (PCOS) and In Vitro Fertilization (IVF): A Comparison Between Standard Long Protocol Polycystic Ovary Syndrome, In Vitro Fertilization | N/A | 2009-04-01 |
| Completed | Cut-Off Progesterone Values Deleterious for In Vitro Fertilization and Fresh Embryo Transfer Progesterone, Fertilization in Vitro, Infertility | — | 2009-01-01 |
| Completed | Embryo Transfer: Direct Versus Afterloading Trial Infertility | N/A | 2008-10-01 |