Active clinical trials for "Premature Birth"

This study involves a single family, including 1 patient, father, mother and sister. The patient presented with a new phenotype associating premature white hair, renal polycystosis, aortic dilation/dissection and lymphopenia. Samples were taken in order to identify the origin of the symptomatology highlighted in the index case. In addition, it was observed that mice invalidated for bcl-2, normal at birth and indistinguishable from control mice, showed, after one week, a phenotype similar to that observed in this patient. The overlap between the patient's main clinical signs (lymphopenia, white hair and polycystic renal disease) and the manifestations presented by the invalidated murine model for BCL2 suggests that its phenotype may be secondary to a Bcl-2 expression defect.

The investigators compared long-term refractive and biometric outcomes in children with retinopathy of prematurity who received two different anti-vascular endothelial growth factor agents.

This study evaluates the use of metagenomic next generation sequencing in identifying microbial DNA in plasma samples of patients with preterm premature rupture of membranes.

Twin pregnancies are at an increased risk of early delivery. One of the reasons for this may be due to a weakened neck of the womb (cervix). There are 2 main ways to manage a weakened cervix in pregnancy. One option is to do nothing (conservative approach). The other is to strengthen the cervix with a stitch (cerclage) to provide extra support. There is no good quality convincing evidence to suggest which of these has better outcomes for mum and babies in twin pregnancies. This trial aims to determine whether securing the weakened cervix with a cerclage will help to prolong the pregnancy and prevent early delivery. Babies who are born early experience multiple complications including lung, brain and learning difficulties. Therefore, the study will also aim to determine whether prolonging the pregnancy by inserting the cerclage reduces the number of babies affected by these problems. In order to carry out a fair study we aim to perform what is known as a randomised controlled trial. We will include in the trial two major groups: (1) women pregnant with twins, who present with a weakened cervix and no signs of infection between 14 and 26 weeks of pregnancy. This will be diagnosed on an internal examination or ultrasound scan, and (2) women pregnant with identical twins complicated by twin-to-twin transfusion syndrome (TTTS) treated by Laser surgery between 16 and 26 weeks in whom a short cervix (<15mm) is identified. TTTS is rare but potentially devastating condition which occurs in about 10-15% of identical twin pregnancies. If left untreated, 80-90% of these babies will die. Overall, best first-line treatment of TTTS is laser surgery. Cervical length is a strong predictor of preterm delivery in these pregnancies. Participants will be allocated randomly into the intervention (cerclage) or control (conservative) group. The procedure to insert the cerclage will be performed under an anaesthetic to minimise discomfort and you will be admitted for 2-3 days following the operation to ensure there are no complications or signs of labour. Women in both groups will be followed up in the same manner until they deliver and the pregnancy outcomes will be compared between the 2 groups to determine which management option is best.

Heparanase is an endo-β-glucuronidase that cleaves heparin-sulfate (HS) side chains of heparan sulfate proteoglycans, an integral constituent of the extra cellular matrix (ECM). This study aims to investigate the association between heparanase expression in the human placenta and preterm birth (PTB) . The investigators hypothesize that an abnormal placentation causes relative placental ischemia that induces higher rates of heparanase expression.

The aim of this data base is to know exactly the future of a "vulnerable newborns" cared in Pontoise Hospital (In the neonatology service) and compare the information with the national data of preterm birth.

The aim of this study is to compare fetal and maternal outcome in cases of PPROM before 34 weeks versus after 34 weeks.

Some babies require emergency surgery on their tummy in the first few months of life. This is most commonly because they were born prematurely and developed a bowel problem (called NEC) or a blockage of the bowel. As part of this surgery, the ends of the bowel may be brought to the skin surface (called a stoma) to divert stool into a bag. The stoma allows time for the bowel to rest and recover and is intended to be temporary with reversal later on. The best time to reverse or "close" the stoma is unknown. Stomas may cause dehydration, poor growth and skin problems so earlier closure may be better; however surgery is safer when babies are older and bigger so later closure may be better. This study aims to answer the question, 'is it feasible to conduct a clinical trial comparing 'early' vs. 'late' stoma closure in neonates?' It has a series of specific objectives which incorporate: (i) describing current UK practice; (ii) establishing whether or not a clinical trial (and exactly what form of trial) is acceptable to parents and clinicians; and (iii) establishing the design of a potential trial, including defining the intervention ('early vs. late') and the population of infants to be included, how infants should be recruited and what information should be collected (outcomes). The investigators will ask parents and health professionals for their views and whether they would take part in a future trial and information about babies who have recently had a stoma to find out which factors influence the timing of closure. They will also analyse 6 years of data from an existing database, the National Neonatal Research Database to estimate the numbers of babies affected, understand current practice and outcomes for these babies to help decide whether a clinical trial is possible.

Prematurity birth lead to an early breaking link with the in utero environment. A special attention is brought in the neonatal intensive care units to reduce noise and lighting surrounding aiming to protect the newborn. During the uterine life fetus benefits previously of several auditory stimulations by the maternal voice, the mother's heartbeat. After birth the auditory environment is dramatically modified. Aim of this study is to submit to the newborn an audio recording of his mother's heart beat to analyze the comfort, stress and autonomic response. Heart rate variability (HRV) analysis is a non-invasive tool able to consider autonomic nervous system activity. Previous studies have shown that pleasant feelings are associated with an increase of high frequencies variations index (HFnu index) reflecting a prevalence of parasympathetic activity in the sympathetic-parasympathetic balance. This one can be simply assess by a monitor named NIPΣ and can provide a comfort index by quantifying the parasympathetic tone.

Preterm labor (PL) is the leading cause of hospitalization during pregnancy and premature birth the leading cause of fetal morbidity and mortality in France. PL is defined by regular and painful uterine contractions associated with a change in the cervix, between 22 and 36 weeks of gestation. It has been shown that the risk of spontaneous prematurity increases particularly in case of working over 40 hours per week, hard physically conditions, or prolonged daily transport time. Rest is one of the most efficient measure to prevent PL and should be proposed to all pregnant women, and combined with other therapies such as tocolysis or cerclage when needed. The very particular period of lockdown during the COVID-19 pandemic had pregnant women to drastically reduce their activity. They suspended their work and stayed home for various reasons such as pregnancy in progress, children at home, and also collective reasons such as teleworking or workplace closure. During the lockdown period from March 17th to May 11th 2020, fewer preterm labor and less spontaneous prematurity have been suspected by the neonatology and obstetrics teams throughout the Lorraine region. Our study aims to objectively confirm this observation. In this investigation we aim to find a relationship between lockdown, PL and spontaneous prematurity which would need to re-evaluate public health recommendations for pregnant women outside the lockdown.