Glycemic Control After Antenatal Corticosteroids in Women With Pregestational and Gestational Diabetes...
Diabetes MellitusType 25 moreThere is a fundamental gap in understanding the maternal and neonatal effects of antenatal corticosteroid (ACS) administration in women with threatened preterm birth (PTB) who have diabetes. Since the initial discovery of ACS for neonatal benefit in 1972, more than 40 randomized controlled trials have been performed evaluating its efficacy. However, none of these trials have included women with T2DM, and there is limited data among women with gestational diabetes. While ACS have been shown to reduce neonatal morbidity associated with PTB in non-diabetic women, the side effects of ACS (maternal hyperglycemia and fetal hyperinsulinemia) may mitigate the neonatal benefit of ACS in women with diabetes. Before neonatal benefit of ACS can be evaluated in this population, the first step is to optimize maternal glycemic control after ACS. Previous studies evaluating maternal hyperglycemia after ACS have been limited by small sample size, retrospective study design, or insufficient glucose data. Use of continuous glucose monitoring (CGM) in a randomized clinical trial provides a unique opportunity to overcome these challenges. Our long-term goal is to improve maternal and child health among women with diabetes as an independently funded clinical researcher. The research objectives of this proposal are to test the efficacy of three treatment strategies at achieving maternal glycemic control after ACS and evaluate the association between maternal glycemic control and neonatal outcomes. Our central hypothesis is that treatment with a continuous insulin infusion will improve maternal glycemic control, which is key to improving neonatal outcomes, but at the cost of less patient satisfaction and more health resource utilization. This hypothesis will be tested by pursuing the following specific aims: 1) Test the efficacy of three treatment strategies (addition of sliding scale insulin, up-titration of home insulin, and continuous insulin infusion) at achieving maternal glycemic control after ACS and 2) Quantify the association between maternal glycemic control after ACS and neonatal morbidity. Completion of these aims will determine the optimal strategy to achieve maternal glycemic control after ACS and inform a larger, multicenter trial to improve neonatal outcomes among women with diabetes and threatened PTB.
Antenatal Melatonin Supplementation for Neuroprotection in Fetal Growth Restriction
Fetal Growth RetardationStillbirth and Fetal Death1 moreFetal growth restriction (FGR) is a significant health care issue, affecting 20,000 Australian pregnancies every year. Undetected FGR is one of the key risk factors for stillbirth, but FGR can also cause significant impairments in short and long-term health outcomes for the child. It is a major risk factor for preterm birth and is a recognised causal pathway to the neurodevelopmental injury underlying cognitive and behavioural impairment and cerebral palsy. Current obstetric care is focused on the detection of the growth restricted fetus and then ultrasound assessment of fetal wellbeing to guide timing of delivery. This approach seeks to maximize the gestational age of the fetus at delivery to minimise the risks of prematurity, while delivering the fetus in time to reduce the likelihood of stillbirth. Currently, no therapies exist that can maximize fetal wellbeing in the setting of growth restriction and minimise the frequency of antenatally acquired brain injury due to in-utero hypoxia. This triple-blind, randomized, parallel group, placebo-controlled trial will administer maternal melatonin or placebo supplementation antenatally in the setting of early-onset severe FGR to determine whether melatonin can PROTECT the fetal brain and lead to improved neurodevelopmental outcomes.
Outpatient Antibiotics Following Previable Rupture of Membranes (pPPROM) Between 18 0/7 and 22 6/7...
Pregnancy PretermPregnancy Prom5 moreA randomized, controlled, non-placebo trial to primarily assess the effect of oral, outpatient antibiotics (i.e., azithromycin and amoxicillin) on latency (i.e., proportion of patients that deliver within 28 days from membrane rupture) following previable, prelabor rupture of membranes between 18 0/7 and 22 6/7 weeks gestational age.
Darbe Plus IV Iron to Decrease Transfusions While Maintaining Iron Sufficiency in Preterm Infants...
PrematurityIron-deficiency2 moreIn this phase II trial, the investigators overarching goal is to demonstrate the feasibility and potential benefit of darbepoetin (Darbe) plus slow-release intravenous (IV) iron to decrease transfusions, maintain iron sufficiency and improve the neurodevelopmental outcomes of preterm infants. Investigators hypothesize that in infants < 32 completed weeks of gestation, combined treatment with Darbe plus Ferumoxytol (FMX) or Darbe plus low molecular weight iron dextran (LMW-ID) will: 1) be safe, 2) decrease or eliminate transfusions, 3) maintain iron sufficiency, 4) result in higher hematocrit and 5) improve neurodevelopment. Investigators further hypothesize that when compared to oral iron supplementation (standard care), IV iron will be better tolerated, with less effect on the gastrointestinal (GI) microbiome
Non-invasive Vagal Stimulation for Frequent Premature Ventricular Complexes
Premature Ventricular ContractionA prospective sham-controlled randomized clinical trial to assess the effect of low-level tragus stimulation (LLTS) in patients with frequent premature ventricular complexes (PVCs)
Azithromycin to Improve Latency in Exam Indicated Cerclage Control Trial
Preterm BirthObstetric Labor8 moreAzithromycin is an antibiotic that is effective against bacteria that been associated with preterm birth (PTB). The purpose of this study is to evaluate if the addition of azithromycin prior to exam indicated cerclage prolongs gestation. A cerclage is a suture placed in the cervix to prolong gestation.
Servo Controlled Oxygen Targeting (SCO2T) Study: Masimo vs. Nellcor
PrematurePremature Infant5 moreMost premature babies require oxygen therapy. There is uncertainty about what oxygen levels are the best. The oxygen levels in the blood are measured using a monitor called a saturation monitor and the oxygen the baby breathes is adjusted to keep the level in a target range. Although there is evidence that lower oxygen levels maybe harmful, it is not known how high they need to be for maximum benefit. Very high levels are also harmful. Saturation monitors are not very good for checking for high oxygen levels. For this a different kind of monitor, called a transcutaneous monitor, is better. Keeping oxygen levels stable is usually done by nurses adjusting the oxygen levels by hand (manual control). There is also equipment available that can do this automatically (servo control). It is not known which is best. Research suggests that different automated devices control oxygen effectively as measured by the readings from their internal oxygen saturation monitoring systems. When compared to free-standing saturation monitors there appears to be variations in measured oxygen levels between devices. This could have important clinical implications. This study aims to show the different achieved oxygen levels when babies are targeted to a set target range. Babies in the study will have both a saturation monitor and a transcutaneous oxygen monitor at the same time. Both types of monitor have been in long term use in neonatal units. For a period of 12 hours, each baby will have their oxygen adjusted automatically using two different internal oxygen monitoring technologies (6 hours respectively). The investigators will compare the range of oxygen levels that are seen between the two oxygen saturation monitoring technologies. The investigators will study babies born at less than 30 weeks gestation, who are at least 2 days old, on nasal high flow and still require added oxygen.
Non-invasive Respiratory Support in Preterm Infants
Preterm InfantRespiratory Insufficiency Syndrome of Newborn1 moreLungs of babies born early are not fully developed and they often need a machine to help them breathe. The traditional approach to provide this support is with a breathing tube passed into the windpipe. However, we know that breathing tubes can cause injury to the fragile lungs of premature babies. Providing breathing support through nose-masks instead of breathing tubes (called nasal breathing support) is becoming popular, as it is gentler on developing lungs. Doctors, in trying to limit the use of support with a breathing tube, are using many different forms of nasal breathing support. The most common form is nasal continuous positive airway pressure (CPAP) which delivers a constant pressure and the baby breathes on his on her own. However, when this strategy is no longer able to support a premature baby's breathing, the best way to provide breathing support is not known. Some doctors use a strategy called "nasal intermittent positive airway pressure" (NIPPV) which gives the baby artificial breaths through the nose-mask. Others simply increase the pressure on nasal CPAP to higher than traditional levels. In the first study of its kind, we will compare these two strategies of nasal breathing support given to premature babies.
Improving Cognition and Gestational Duration With Targeted Nutrition
Malnutrition in PregnancyPreterm Birth3 moreThe goal of this clinical trial is to test (1) a novel maternal ready-to-use supplementary food and (2) a novel cognitive behavioral therapy intervention in undernourished Sierra Leonean women. The main questions it aims to answer are: Will the addition of omega-3 long-chain polyunsaturated fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), as well as choline, to a maternal ready-to-use supplementary food (M-RUSF+) prolong gestation when compared with a similar supplementary food except that it lacks DHA, EPA, and choline (M-RUSF)? Will M-RUSF+ improve infant cognitive development at 9 months of age when compared with M-RUSF? Will the novel CBT program improve ante- and post-partum depression?
Cerclage for the Reduction of Extreme Preterm Birth in Twin Pregnancies With a Short Cervix or Dilatation...
Preterm BirthThe goal of this clinical trial is to assess the effectiveness of a cerclage in women with a twin pregnancy with a midpregnancy short cervix or cervical dilatation compared to standard treatment (no cerclage) in the prevention of extreme preterm birth < 28 weeks of gestational age. The main question it aims to answer is: What is the effectiveness of a cerclage in women with a twin pregnancy with a midpregnancy short cervix or cervical dilatation compared to standard treatment (no cerclage) in the prevention of extreme preterm birth < 28 weeks of gestational age? Participants will be randomly assigned to the intervention (cerclage) or comparison (no cerclage) group.