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64 active trials for Pregnancy Complications

Spanish Registry of Pregnant Women With COVID-19

Study title Spanish Registry of Pregnant Women with COVID-19 Protocol number and version Number 55/20. Version V8. Sponsors This registry is a project promoted by Dr. Oscar Martínez Pérez of the Obstetrics and Gynaecology department of the Puerta de Hierro University Hospital. Principal investigator of the registry National coordinator: Dr. Óscar Martínez Pérez. Obstetrics and Gynaecology Department. Puerta de Hierro University Hospital. Majadahonda. Epidemiologist: Maria Luisa de la Cruz Conti Researchers for each site: 100 sites from 32 Spanish provinces are included (Appendix 1) Funding Neither the hospitals nor the participating investigators will receive any financial compensation for their collaboration. A bank account has been opened at the hospital's Biomedical Research Foundation to receive donations: COV20/00021 - SARS-COV-2 and the COVID-19 disease Call financed by the Carlos III Institute of Health and co-financed with ERDF funds. Abstract Rationale: Knowledge about the impact of the SARS-CoV-2 virus on pregnancy is still scarce and all current recommendations are based on less than 100 cases published in the literature. To identify moderate effects (such as vertical transmission, obstetric morbidity, foetal death, maternal or neonatal death) and to allow accurate risk estimates, larger sample sizes than those currently available are required. Methods: Prospective observational study of pregnant women in whom SARS-CoV-2 infection is suspected at any time during pregnancy with positive test results for SARS-CoV-2, in order to create a registry of baseline characteristics of the pregnant woman, aspects related to the course of pregnancy and delivery, and related to the new-born, with an observation period of up to 14 days after delivery. Subsequently, several phased studies will be conducted to help establish and monitor the set of measures to improve the care of pregnant women. Discussion: The national registry for COVID-19 in pregnancy described here is a tool for sharing and centralizing data related to exposures to SARS-CoV-2 during pregnancy in a structured way. It should speed up the process of prospectively obtaining a large unbiased data set and will collect information at national level.

Start: March 2020
GROSS-HIST : Quantification of the Main Circulating Histones During Normal Pregnancy and Pregnancies With Placenta-mediated Complications

Pregnancy generates an increased thrombotic risk, and placental-mediated diseases are a risk factor for cardiovascular diseases, in particular: pre-eclampsia (PE), intrauterine growth retardation (IUGR), retroplacental hematomas (HRP), late intrauterine fetal deaths (LIFD) of placental origin and preterm deliveries of vascular origin. They are responsible for significant maternal-fetal morbidity/mortality. Data published in 2007 by the Haute Autorité de Santé (HAS) show that hypertension and pre-eclampsia are, in France, at the origin of 3 to 8% of the risk of perinatal mortality. During pregnancy, a transitional organ of foetal origin, the placenta, is established, which is essential for the maintenance and harmonious development of the pregnancy. The chorionic villus, in contact with maternal blood in the intervilleous chamber, is the structural and functional unit of the placenta. After the initial implantation phase, the trophoblastic cell constituting the main part of the placental villi differs in two ways: (A) into "citrus cytotrophoblasts" whose cells will fuse to generate the multinucleated outer layer giving the syncytiotrophoblast that ensures fetal-maternal exchanges and endocrine functions of the placenta; (B) into "invasive extra-city cytotrophoblasts" essential for the effective anchoring of the placenta in the decidualized uterine mucosa and for the remodelling of the terminal uterine spiral arteries, whose resistance to blood flow must collapse to allow effective oxygenation of the villi. Extra-city trophoblasts change from an epithelial phenotype to an endothelial phenotype. They may thus be exposed to pro-thrombotic factors such as endothelial cells. A lack of trophoblastic invasion and incomplete remodelling of the spiral uterine arteries are responsible for placental hypo-perfusion, hypoxia and the occurrence of placenta-mediated pathologies (pre-eclampsia, intrauterine growth retardation, retroplacental hematoma, fetal loss and fetal death in utero). The most common placental-mediated disease is pre-eclampsia (5% of births). It corresponds to a complication occurring from the second trimester of pregnancy and which is clinically characterized by high blood pressure, oedema and proteinuria. It is responsible for premature deliveries and is a major cause of intrauterine growth restriction. To date, there is no specific and early biomarker for the occurrence of placental vascular pathologies. Recent developments raise, for example, the question of circulating angiogenesis inhibitory factors (sFlt1, sEng) in pre-eclampsia. With regard to treatment, early administration of low-dose aspirin before 16 weeks of pregnancy seems to reduce the risk of pre-eclampsia, hence the importance of having very early markers of the disease. Discovering such markers is therefore one of the major challenges in strengthening women's follow-up and avoiding subsequent complications. For fetal losses and retroplacental hematoma, the administration of low molecular weight heparin has been shown to be effective. However, these treatments are not specific to placental vascular pathologies. Thus, understanding and exploring the cellular and molecular mechanisms of vascular-placental interface dysfunctions remains necessary to enable targeted management of patients feeding the general principle of precision medicine. Compare the concentrations of (i) circulating histones involved in inflammation, proliferation, migration or cell differentiation (H3-citrullinated histone, acetylated histones (Pan-histones), H1 histone) and (ii) free HMGB1 protein between the three patient groups ("GrossN", "GrossC", "VolS"). The histones H3-citrullinated, acetylated histones (Pan-histones), H1 histone as well as the free HMGB1 protein will be quantified. This choice corresponds to the histones involved in inflammation, proliferation, migration or cell differentiation and can be quantified to date.

Start: March 2019
The Effect of Early Screening and Intervention for Gestational Diabetes Mellitus on Pregnancy Outcomes

Context: Women with gestational diabetes have excessive fetus growth weeks earlier than the screening period recommended currently, suggesting that earlier screening and intervention may improve pregnancy outcomes and the health of the offspring. Objective: To determine if early screening and intervention could alter pregnancy outcomes, the incidence of maternal diabetes after delivery, and growth and development of the offspring, compared to the standard group. Design, Setting, Participants: We will conduct a multi-center open-label randomized controlled trial in 2068 pregnant women, who deliver a singleton and who have not been diagnosed with overt diabetes mellitus at National Taiwan University Hospital (NTUH) and NTUH Hsinchu Branch from 2018 to 2020. Interventions: Gestational diabetes mellitus (GDM) is diagnosed by a 75g 2-hour OGTT at 18-20 weeks of GA for the early-screening group and at 24-28 weeks for the standard-screening group. The diagnostic cutoffs are according to the IADPSG criteria. GDM is diagnosed if one of the plasma glucose levels at fasting, 1-hour, and 2-hour during OGTT is above 92 mg/dL, 180 mg/dL, or 153 mg/dL respectively. Subjects who are diagnosed with GDM receive lifestyle intervention and self-monitoring of blood glucose. Pharmacological therapies are given when the target of glycemic control is not achieved within 4-6 weeks. Main Outcome Measure: The primary outcome is a composite measure of pregnancy outcomes, including primary CS, birth weight >90th percentile, neonatal hypoglycemia, cord serum C-peptide >90th percentile, pregnancy-induced hypertension, preeclampsia, and birth trauma. The primary outcome is measured within the entire period of perinatal and neonatal intensive-care units (NICU) stay for infants and the entire period of gestation for pregnant women after randomization. Conclusion: This study will test our hypothesis that early screening and intervention of GDM improves pregnancy outcomes as compared to standard practice.

Start: June 2018