47 Clinical Trials for Various Conditions
The purpose of this retrospective pilot study is to address the effect that obesity, in the absence of other comorbidities, has on birth weight. We wish to determine if obesity is a risk factor for small for gestational age (SGA) or intrauterine growth restricted (IUGR) infants in our clinic population. There have been many studies linking maternal obesity with fetal macrosomia, defined as fetal birth weight greater than 4500 grams. However, we have noted that a percentage of our obese patient population has delivered either an SGA or IUGR infant. SGA refers to a constitutionally small infant weighing less than the 10th percentile for age. This refers to a genetically normal infant. IUGR refers to a fetus whose growth has been restricted by influences other than normal genetics. Our study population will consist of all women over the age 18 who delivered a term infant either by vaginal delivery or cesarean section at Tulsa Regional Medical Center between July 1st 2004 and December 31st 2005. The diagnosis of obesity will be based upon a Body Mass Index (weight in kilograms/height in meters squared) of thirty or greater. We will look at the infant birth weight as recorded in the patient's chart. We will define SGA or IUGR as birth weight less than the 10th percentile for gestational age as defined previously. The control group will consist of women meeting the same criteria except they will have a BMI less than thirty but greater than 19.8 as low maternal weight is also a risk factor for IUGR. We will compare the average birth weight and the rates of SGA/IUGR infants between the two groups and analyze using the chi-squared method of analysis.
Preterm birth (PTB) rates in the US are among the highest in wealthy nations across the globe, and they are particularly high in our most socio-economically disadvantaged populations. PTB increases lifelong morbidity and mortality at significant economic cost. In addition to neonates born too early, small for gestational infants predict the greatest risk for chronic disease in the neonate (F1 generation) through adulthood. Single lifestyle, nutrient, or medical interventions intended to reduce PTB have produced mixed results, but combined micronutrient interventions appear more successful. The investigators experienced a reduced preterm birth rate and combined preeclampsia, gestational diabetes and small for gestational age rate in a 50% Medicaid population by providing targeted micro/macronutrient, genomic and lifestyle evaluation with personalized intervention in a trimester-by-trimester group educational setting (1). The model requires validation in more diverse populations. This study will be applied in a 100% Medicaid population with greater ethnic diversity. Participation will be voluntary, offered to all pregnant participants enrolling at 18 weeks gestation or earlier with the comparator group being those participants who decline the intervention. The study population will receive targeted biomarker evaluation including serum 25-OH D, zinc and carnitine levels, dried blood spot omega 3 fatty acids and select gene variant analysis. Virtual group nutrition and lifestyle education visits conducted by the nutritionist cluster participants in the same trimester allowing for personalization of the nutrition and lifestyle plan based on the data collected and adapted to the specific needs of the trimester. Each study participant will receive individualized nutrient supplementation and probiotic supplementation. Anticipated performance improvement endpoints are significant reduction of preterm birth and combined incidence of preeclampsia, gestational diabetes, small for gestational age, neonatal morbidities and related health care expenses. The investigators will explore gene variants' role in directing nutrition, lifestyle and toxic exposure interventions and in predicting adverse maternal and neonatal outcomes.
The objective of the NeoPlaTT trial is to test whether, among extremely preterm infants born at 23 0/7 to 26 6/7 weeks' gestation, a lower platelet transfusion threshold, compared to a higher threshold, improves survival without major or severe bleeding up to 40 0/7 weeks' postmenstrual age (PMA).
We are attempting to improve the cerebral monitoring of extremely low gestational age (ELGA) infants, such that in the future, real-time monitoring will be possible, to aid clinicians in their management of these infants. We wish to establish a new NIRS device, diffuse correlation spectroscopy (DCS), as a safe, noninvasive and informative bedside tool for assessing and monitoring brain health in ELGA infants during the first few days of life. It is hoped that this method will provide detailed information on changes in oxygen consumption and metabolism, and cerebral perfusion. This technique will have wide applicability, but for this research study we wish to focus on the effect of blood flow instabilities, intermittent hypotension and hypoxic episodes, pressure passive CBF periods, and hypoperfusion on the preterm brain during the first days of life, and their relationship with incidence of intraventricular hemorrhage (IVH). We aim to recruit 100 premature infants to obtain data to: 1. Test the feasibility of NIRS-DCS to monitor cerebral activity, perfusion and oxygen consumption in extremely premature infants during the first week of life. 2. To assess if these baseline values are impacted by intermittent hypoxic episodes. 3. To assess if cerebral blood flow disturbances correlate with incidence of intraventricular hemorrhage. 4. Correlate the NIRS-DCS findings with clinical outcome at hospital discharge.
The objective is to pilot test the effectiveness of an evidence-based intervention to promote positive neurodevelopmental outcomes in infants at risk for developmental delay. The intervention promotes movement experience from 3 months to sitting onset.
This was a quasi-experimental pilot study comparing blood glucose values 30 minutes after feeding alone or feeding + dextrose gel in newborns at risk for transient neonatal hypoglycemia.
In preterm infants fed human milk, milk needs to be fortified to meet nutrient recommendations. Fortification can be 1) standard, 2) individualized (adjusted based on daily human milk nutrient analysis and milk volume), or 3) optimized (adjusted based on growth rate and serum analyses). The first specific aim will determine whether individualized and optimized nutrition during hospitalization results in improved growth in the neonatal intensive care unit (NICU) in extremely low gestational age (GA) neonates (ELGANs, \<29 weeks) and in small for GA (SGA, birth weight \<10th percentile for GA) preterm infants compared with optimized nutrition. The second specific aim will determine whether individualized and optimized nutrition in the NICU improves neurodevelopmental outcomes (acquisition of development milestones) and reduces the risk of disproportionate growth (i.e., excess fat) in the NICU and findings suggestive of metabolic syndrome in the first 3 years of life.
Contraceptive failure is the primary cause of unintended pregnancy in the United States. With obesity rates at epidemic proportions, any association between obesity and strategies that prevent undesired pregnancies constitutes a significant public health and economic concern. Evidence from recent epidemiological studies and our preliminary data (sub-therapeutic levels of steroid hormones due to drug clearance and half-life) suggest that obesity reduces oral contraceptive efficacy. Furthermore, preliminary analysis suggested that a sub-group of obese women, defined by their own birth weight, are at higher risk of contraceptive failure. Further studies are necessary to investigate whether birth weight, a surrogate marker of in utero growth restriction, is a useful diagnostic marker for the identification of women prone to contraceptive failure. Such an understanding is critical to finding a contraceptive strategy with better efficacy for these women. The overall goal of this project is to test pharmacokinetics of oral contraceptive agents in obese women with low birth weight and compare to obese women with normal birth weight. The main hypothesis for this proposal is that an adverse in utero environment programs the expression and function of enzymes and transporters that underlie pharmacokinetics of oral contraceptives, and leads to contraceptive failure. Reproductive-aged, ovulatory women of obese BMI \>30 kg/m2 with normal birth weight (5.5-8 lbs; n=10) and low birth weight (\<5.5 lbs; n=10), will be placed on oral contraceptives for 1 month. At several key time points, synthetic steroid pharmacokinetics, gonadotropins (luteinizing hormone, follicle-stimulating hormone) and ovarian hormone levels (estradiol, progesterone) will be monitored.
The objective of the TOP trial is to determine whether higher hemoglobin thresholds for transfusing ELBW infants resulting in higher hemoglobin levels lead to improvement in the primary outcome of survival and rates of neurodevelopmental impairment (NDI) at 22-26 months of age, using standardized assessments by Bayley.
The Milk Trial seeks to determine the effect on neurodevelopmental outcomes at age 22-26 months of donor human milk as compared to preterm infant formula as the in-hospital diet for infants whose mothers choose not to provide breast milk or are able to provide only a minimal amount. Infants will be randomized to receive donor breast milk or formula during their hospital stay. Infant's will be followed until they reach 22-26 months of age.
The Hydrocortisone and Extubation study will test the safety and efficacy of a 10 day course of hydrocortisone for infants who are less than 30 weeks estimated gestational age and who are intubated at 14-28 days of life. Infants will be randomized to receive hydrocortisone or placebo. This study will determine if hydrocortisone improves infants'survival without moderate or severe BPD and will be associated with improvement in survival without moderate or severe neurodevelopmental impairment at 22 - 26 months corrected age.
This observational study was conducted to design and test a physiologic definition for bronchopulmonary dysplasia at 36 weeks of life. Infants were studied in a supine position with the pulse oximeter in position with good signal prior to collecting baseline data. Feedings and medications were given 30 minutes before the evaluation. Baseline data was collected on infant's current oxygen. Then, the infants were weaned to room air for 30 minutes. If saturations remain ≥90%, the infant was considered to have passed the oxygen reduction challenge (to NOT have BPD). The infant should then be placed back in his/her baseline oxygen. If the infant has saturations \<90% for 5 continuous minutes or \<80% for 15 seconds, the infant should be immediately placed back in his/her baseline oxygen, and the infant was considered to have NOT passed the challenge (to have BPD).
This pilot study was designed to determine the feasibility of randomizing extremely low birth weight (ELBW) infants \<28 weeks' gestation who required resuscitation to one of two resuscitation methods, either: (a) 100% oxygen by facemask and continuous positive airway pressure (CPAP) or positive pressure ventilation (PPV) with positive end-expiratory pressure (PEEP), if the infant required PPV (the intervention group); or (b) 100% oxygen and no CPAP and no PEEP if the infant required PPV (the control group).
The purposes of this study were: 1) to compare mortality and postoperative morbidities in extremely low birth weight (ELBW) infants who underwent initial laparotomy or drainage for necrotizing enterocolitis (NEC) or isolated intestinal perforation (IP); 2) to determine the ability to distinguish NEC from IP preoperatively and the importance of this distinction on outcome measures; and 3) to evaluate the association between extent of intestinal disease determined at operation and outcome measures. All ELBW infants born at participating NRN centers were screened for the presence of NEC or IP that was thought by the pediatric surgeon and neonatologist to require surgical intervention. Data were collected enrolled infants, including: intraoperative findings recorded by the surgeon and specific post-operative complications. Neurodevelopmental examinations were conducted on surviving infants at 18-22 months corrected age.
This study tested the feasibility of conducting a randomized controlled trial to vary the timing that doctors clamp the umbilical cord after birth in extremely low birthweight infants. The study also tested whether delaying cord clamping by 30-35 seconds and holding the newborn approximately 10 inches below the birth canal would result in increased hematocrit at 4 hours of age.
This study tested the safety and efficacy of transfusing erythropoietin (Epo) and iron in infants of \<1,250g birth weight. For infants 401-1,000g birth weight, we tested whether early erythropoietin (Epo) and iron therapy would decrease the number of transfusions received. For infants 1,001-1,250g birth weight, we tested whether early erythropoietin (Epo) and iron therapy would decrease the percentage of infants who received any transfusions.
This study examined the effect of magnesium sulfate (MgSO4) exposure on adverse outcome in extremely low birth weight (ELBW) infants. For infants included in the NICHD Neonatal Research Network Generic Database whose mothers were given prenatal MgSO4, data were prospectively collected on maternal/infant conditions and magnesium exposure (including indications, timing and duration of exposure).
This multi-site, randomized trial was conducted to determine the safety and effectiveness of a higher dose of vitamin A and determine if this would increase the rate of survival without bronchopulmonary dysplasia (BPD) and reduce the risk of sepsis. Infants with birth weights from 401-1000g and who were on mechanical ventilation or supplemental oxygen at 24-96 hours of age were enrolled. Subjects were randomized to either the Vitamin A or a control group. Infants in the Vitamin A group were given a dose of 5000 IU (0.1 ml) intramuscularly on Mondays, Wednesdays, and Fridays for four weeks. Control infants received a sham procedure rather than placebo injections.
This study was a multicenter, prospective cohort study to define postnatal longitudinal growth for very low birth weight (VLBW) infants. The objectives were: 1) to develop postnatal growth curves for VLBW preterm infants that would permit an assessment of growth velocity; 2) to relate growth velocity and nutritional practices (duration of parenteral nutrition, age at first enteral feeding, and age at full enteral feeding); 3) to compare growth velocity in infants who are small-for-gestational age (SGA) with infants who are appropriate-for-gestational age (AGA); and 4) to relate growth velocity to several common, major morbidities, including chronic lung disease (CLD), nosocomial infection (or late-onset infection) and necrotizing enterocolitis (NEC). These growth data may be useful in identifying preterm infants who are growing slowly despite current nutritional support and in designing and performing clinical trials of nutritional interventions.
The primary purpose of this study was to evaluate the accuracy of gestational age (GA) estimates by using the New Ballard Score (NBS) in newborns 24 to 27 weeks GA with accurate obstetric estimates of GA. Secondary purposes were: (1) to compare the accuracy of GA estimates derived from the NBS, the original Ballard score, and the physical items of the original Ballard score and (2) to compare these measures of GA and best obstetric estimates of GA as predictors of survival, morbidity, and hospital stay among infants \<28 weeks' gestation and among very low birth weight infants in general.
The purpose of this trial was to determine the efficacy and safety of supplemental therapeutic oxygen for infants with prethreshold retinopathy of prematurity (ROP) to reduce the probability of progression to threshold ROP and the need for peripheral retinal ablation.
This study was an observational study to estimate the prevalence of Persistent pulmonary hypertension of the newborn (PPHN) among term or near-term infants with severe respiratory disease.
The purpose of this study is to compare the efficacy of two surfactants, Exosurf Neonatal (Burroughs Wellcome Co.) and Survanta (Ross Laboratories), for the treatment of neonatal respiratory distress syndrome.
A controlled clinical trial was conducted at eight participating centers between January 1, 1988, and March 31, 1991. Patients were randomly assigned to an intravenous immune globulin group or a control group. There were two phases to the study (see below). During phase 1 the control infants received infusions of placebo. During phase 2 the control infants received no infusion therapy.
The purpose of this pilot trial is to test the safety and efficacy of administering one dose of vitamin E, via a tube into the stomach, to extremely preterm infants (less than 27 weeks gestation and less than 1000 grams birth weight). This pilot will examine whether a single dose of vitamin E will be absorbed into the infants' bloodstreams with resulting serum α-tocopherol level in the target range of 1-3 mg/dl.
This observational study assessed whether measurements of certain pro-inflammatory and anti-inflammatory cytokines in the blood (either singly or in combination) at birth and/or up to day of life 21 can predict cerebral palsy at 18-22 months corrected age.
This pilot study is a randomized, placebo-controlled, clinical trial to measure changes in blood and urine levels of inositol in premature infants at high risk for retinopathy of prematurity (ROP) following repeated doses of inositol. Based on previous studies, the premise is that maintaining inositol concentrations similar to those occurring naturally in utero will reduce the rates of ROP and bronchopulmonary dysplasia in premature infants. The objective is to evaluate pharmacokinetics, safety, and clinical outcomes of multiple doses of three different dose amounts of myo-inositol (provided by Abbott Laboratories) in very low birth weight premature infants. This study will enroll an estimated 96 infants at 17 NICHD Neonatal Research Network sites. Infants will be randomly assigned to receive either 10 mg/kg of 5% inositol, 40 mg/kg of 5% inositol, 80 mg/kg of 5% inositol, or 5% glucose given in the same volumes and timings as the inositol dosage to maintain masking. Enrollees will receive their assigned dose or placebo daily, starting within 72 hours of birth, and continuing until they reach 34 weeks post-menstrual age, 10 weeks chronologic age, or until the time of hospital discharge, whichever occurs first. The study drug will be administered first intravenously; as the infants progress to full feeding, the drug will be given enterally (orally or via feeding tube). Enrollees will be seen for a follow-up examination at 18-22 months corrected age. This pilot study is in preparation for a future Phase III multi-center randomized controlled trial.
This study will compare the effectiveness of two surgical procedures -laparotomy versus drainage - commonly used to treat necrotizing enterocolitis (NEC) or isolated intestinal perforations (IP) in extremely low birth weight infants (≤1,000 g). Infants diagnosed with NEC or IP requiring surgical intervention, will be recruited. Subjects will be randomized to receive either a laparotomy or peritoneal drainage. Primary outcome is impairment-free survival at 18-22 months corrected age.
This trial tests the feasibility of enrolling 60 extremely preterm infants in a randomized, double-blinded study of blood pressure management within 12 months. Eligible infants will receive an infusion drug (dopamine or a dextrose placebo) and a syringe drug (hydrocortisone or a normal saline placebo). Enrolled infants will be randomized to receive one of the following drug pairs: * dopamine and hydrocortisone * dopamine and normal saline * dextrose and hydrocortisone * dextrose and normal saline. In addition to the intervention above, the NRN is conducting a 6-month time-limited prospective observational study of all infants born at an NRN center between 23 and 26 weeks gestational age. All clinical decisions made for these babies will be at the discretion of the attending neonatologist/infant care team according to standard practice at each institution. Data on blood pressure management in the first 24 postnatal hours collected for each infant.
In this observational study, the NICHD Neonatal Research Network (NRN) is conducting surveillance of all infants born at NRN centers to identify all newborns who are diagnosed with early-onset sepsis (EOS) and/or meningitis. The study will: establish current hospital-based rates of EOS among term and preterm infants in the era of intrapartum antibiotic prophylaxis; monitor the organisms associated with EOS and meningitis; compare asymptomatic and symptomatic infants by gestational age and pathogen; and monitor sepsis-associated mortality rates by pathogen group.