| Not Yet Recruiting | Study of Endometrial Immune and Microbiological Modifications in Cases of Recurrent Implantation Failure and/o NCT07265505 | Assistance Publique - Hôpitaux de Paris | N/A |
| Not Yet Recruiting | Cardiac Autonomic and Anxiety Regulation Via Closed-loop nEurofeedback in Recurrent Pregnancy Loss NCT07325370 | Shenyang Medical College | N/A |
| Recruiting | Effects of High-Intensity, Low-Frequency Periodic rTMS Over the Right Dorsolateral Prefrontal Cortex on Cardia NCT06968026 | Shenyang Jinghua Hospital | N/A |
| Recruiting | Effect of HCQ Combined With LT4 on LBR in Euthyroid Women With URPL and TPO-Ab NCT06652113 | Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University | N/A |
| Recruiting | Prednisolone Administration in Patients With Unexplained REcurrent MIscarriages NCT05725512 | Leiden University Medical Center | Phase 4 |
| Recruiting | Tender Loving Care for Recurrent Pregnancy Loss NCT06182878 | Walter Reed National Military Medical Center | N/A |
| Unknown | Elucidating the Microbiome in Patients With Recurrent Pregnancy Loss NCT05612620 | Assuta Ashdod Hospital | — |
| Unknown | Treatment of Recurrent Pregnancy Loss Using Mesenchymal Stem Cells NCT05520112 | Institute of Biophysics and Cell Engineering of National Academy of Sciences of Belarus | Phase 1 / Phase 2 |
| Unknown | Biweekly Follow-Up and At-Home Ultrasound Reduce Anxiety in Women With Recurrent Pregnancy Loss NCT05656846 | Wolfson Medical Center | N/A |
| Recruiting | Prospective Recurrent Pregnancy Loss Registry NCT05989178 | University of British Columbia | — |
| Unknown | Uterine Artery Doppler Changes After Vaginal Administration of Isosorbide Mononitrate In Patients With URPL NCT05341856 | Al-Azhar University | EARLY_Phase 1 |
| Active Not Recruiting | Aerobe Cycling Training in Women With Unexplained Recurrent Pregnancy Loss NCT06007560 | Radboud University Medical Center | N/A |
| Unknown | Hydroxychloroquine in Unexplained Recurrent Pregnancy Loss NCT05237843 | Ain Shams University | Phase 1 |
| Not Yet Recruiting | On Pregnancy After Losses - OPAL Study NCT05167812 | Leiden University Medical Center | — |
| Completed | Evaluation of Apelin-13 and Apelin-36 in Women With Recurrent Pregnancy Loss NCT05205044 | Ain Shams University | — |
| Unknown | Establishment of Special Disease Cohort for RPLand Study of Impact Mechanism of Early Embryo Development NCT05186207 | Women's Hospital School Of Medicine Zhejiang University | — |
| Terminated | Maternal and Newborn Safety Profile of Progestogens in EARLY Pregnancy NCT05186779 | Center for Epidemiology and Health Research, Germany | — |
| Recruiting | Genomic Predictors of Recurrent Pregnancy Loss NCT05444283 | Yale University | — |
| Completed | Intravenous Immunoglobulin and Prednisolone for RPL After ART. NCT04701034 | Aalborg University Hospital | Phase 2 |
| Active Not Recruiting | Microfluidics Versus Gradient Centrifugation Effect on Euploidy Rates NCT04744025 | Lawrence Engmann | N/A |
| Completed | B-vitamin Levels and Adverse Pregnancy Outcomes NCT05073978 | Westlake University | — |
| Unknown | Live Birth Rate in Patients With Unexplained Recurrent Pregnancy Loss NCT04621773 | Peking University Third Hospital | — |
| Completed | Hysteroscopic Septoplasty by Different Modalities NCT05802784 | Mansoura University Hospital | N/A |
| Suspended | SCUBE-1 and Carotid Intima Media Thickness in Recurrent Pregnancy Loss NCT04397042 | Recep Tayyip Erdogan University Training and Research Hospital | — |
| Completed | Evaluation of Endoplasmic Reticulum Stress in Patients With Recurrent Pregnancy Loss NCT04455256 | Kanuni Sultan Suleyman Training and Research Hospital | — |
| Unknown | Immunosuppressant Regimens for Living Fetuses Study NCT03671174 | RenJi Hospital | N/A |
| Unknown | Pregnancy Outcomes in Women With Unexplained Recurrent Pregnancy Loss Treated With Low Dose Aspirin and Unfrac NCT02144064 | Benha University | Phase 3 |
| Unknown | Meditation and Mindfulness for Recurrent Pregnancy Loss NCT03905395 | Henriette Svarre Nielsen, MD, DMSc | N/A |
| Unknown | Use of Metabolomics for the Identification of Endometrial Biomarkers for IRPL and RIF After in Vitro Fertiliza NCT03690830 | University Hospital, Angers | N/A |
| Completed | Effect of Sildenafil Citrate on Mid Luteal Phase Uterine Artery Blood Flow in Patients With Recurrent Pregnanc NCT04718233 | Ain Shams University | Phase 2 |
| Unknown | Effects of PGS2.0 in Patients With Unexplained RPL NCT03214185 | ShangHai Ji Ai Genetics & IVF Institute | N/A |
| Unknown | Hydroxychloroquine (HCQ) for Recurrent Pregnancy Loss NCT03305263 | Rigshospitalet, Denmark | Phase 3 |
| Completed | Assessing the Endometrial Environment in Recurrent Pregnancy Loss and Unexplained Infertility NCT03401918 | Stanford University | Phase 2 |
| Completed | Ultrasound Predictors of Early Pregnancy Failure in Patients With Recurrent Pregnancy Loss NCT03178682 | Ain Shams University | — |
| Unknown | The Epidemiology of Recurrent Spontaneous Abortion Associated With Thrombophilla NCT02990390 | Shanghai First Maternity and Infant Hospital | — |
| Completed | Immunomodulatory Effects of IVIg on Pregnancy Rate of Patient With Recurrent Pregnancy Loss NCT03174951 | Tabriz University of Medical Sciences | Phase 2 |
| Withdrawn | Hydroxychloroquine (HCQ) for Recurrent Pregnancy Loss NCT02379650 | University of Utah | Phase 2 |
| Recruiting | Association Between Plasma Level of Mannose Binding Lectin and Human Reproduction NCT05169541 | Aalborg University Hospital | — |
| Completed | Low Plasma Mannose Binding Lectin (p-MBL) Level is a Risk Factor for Recurrent Pregnancy Loss (RPL) NCT04017754 | Aalborg University Hospital | — |
| Completed | Association of HY-restricting HLA Class II Alleles, Sex of Firstborn Child, and Pregnancy Outcome in RPL Patie NCT05342948 | Aalborg University Hospital | — |
| Unknown | Recurrent Pregnancy Loss and Thyroid Disease NCT03106935 | Second Affiliated Hospital of Soochow University | EARLY_Phase 1 |
| Completed | TNFα and MFG-E8: Novel Biomarkers to Predict Implantation Failure NCT02386384 | Eastern Virginia Medical School | — |
| Unknown | The Novel Immunomodulatory and Anticoagulant Therapies for Recurrent Pregnancy Loss NCT02990403 | Shanghai First Maternity and Infant Hospital | Phase 4 |
| Unknown | A Multi-center, Placebo-controlled Study to Evaluate NT100 in Pregnant Women With a History of Unexplained Rec NCT02156063 | Nora Therapeutics, Inc. | Phase 2 |
| Unknown | Comparison of Standard ART Practice vs. Trophectoderm Biopsy and Whole Chromosome Analysis NCT01946945 | Reprogenetics | Phase 2 |
| Completed | Sperm DNA Fragmentation in Recurrent Pregnancy Loss NCT02572154 | University Hospital, Toulouse | N/A |
| Suspended | Preimplantation Genetic Diagnosis Using Blastocyst Biopsy and Array CGH NCT01546350 | Reprogenetics | Phase 2 |
| Unknown | Aspirin Versus Clopidogrel Effect on Uterine Blood Flow in Women With Unexplained Recurrent Miscarriages NCT01635426 | Ain Shams University | Phase 2 / Phase 3 |
| Terminated | Efficacy of a Structured Weight Loss Program in Overweight Women With a History of Recurrent Pregnancy Loss NCT01325805 | Stanford University | N/A |
| Completed | Effectiveness of Aspirin in Compare With Heparin Plus Aspirin in Recurrent Pregnancy Loss Treatment NCT01542411 | Yazd Medical University | — |
| Completed | Pharmacokinetics of Low Molecular Weight and Unfractionated Heparin in Pregnancy NCT00721591 | University of Chicago | — |
| Terminated | Low Molecular Weight Heparin and Aspirin in the Treatment of Recurrent Pregnancy Loss: A RCT NCT00564174 | Mount Sinai Hospital, Canada | N/A |