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ELFIN, the United Kingdom preterm lactoferrin trial: interpretation and future questions 1.
Berrington, JE, McGuire, W, Embleton, ND
Biochemistry and cell biology = Biochimie et biologie cellulaire. 2021;(1):1-6
Abstract
Results from previous studies have suggested that supplemental bovine lactoferrin (BLF) given to preterm infants (<32 weeks gestation) reduces late-onset sepsis (LOS) and necrotising enterocolitis (NEC). The Enteral Lactoferrin in Neonates (ELFIN) study, performed in the UK, aimed to further address this issue with a well powered double-blind placebo controlled trial of >2200 preterm infants. The results from ELFIN did not demonstrate a reduction in LOS or NEC, or several other clinically important measures. Of the 1093 infants, 316 (29%) in the intervention group developed late-onset sepsis versus 334 (31%) of 1089 in the control group, with an adjusted risk ratio of 0.95 (95% CI = 0.86-1.04; p = 0.233). Reasons for the differences in ELFIN trial results and other studies may include population differences, the routine use of antifungal prophylaxis in the UK, timing of administration of the lactoferrin in relation to disease onset, or specific properties of the lactoferrin used in the different trials. The UK National Institutes for Health Research funded "Mechanisms Affecting the Guts of Preterm Infants in Enteral feeding trials" (MAGPIE) study is further exploring the use of lactoferrin, and the results should be available soon.
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Challenges of a simplified opt-out consent process in a neonatal randomised controlled trial: qualitative study of parents' and health professionals' views and experiences.
McLeish, J, Alderdice, F, Robberts, H, Cole, C, Dorling, J, Gale, C, ,
Archives of disease in childhood. Fetal and neonatal edition. 2021;(3):244-250
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Abstract
BACKGROUND More effective recruitment strategies like alternative approaches to consent are needed to facilitate adequately powered trials. Witholding Enteral feeds Around Transfusion was a multicentre, randomised, pilot trial that compared withholding and continuing feeds around transfusion. The primary clinical outcome was necrotising enterocolitis. The trial used simplified opt-out consent with concise parent information and no consent form. OBJECTIVE To explore the views and experiences of parents and health professionals on the acceptability and feasibility of opt-out consent in randomised comparative effectiveness trials. METHODS A qualitative, descriptive interview-based study nested within a randomised trial. Semistructured interview transcripts were analysed using inductive thematic analysis. SETTING Eleven neonatal units in England. PARTICIPANTS Eleven parents and ten health professionals with experience of simplified consent. RESULTS Five themes emerged: 'opt-out consent operationalised as verbal opt-in consent', 'opt-out consent normalises participation while preserving parental choice', 'opt-out consent as an ongoing process of informed choice', 'consent without a consent form' and 'choosing to opt out of a comparative effectiveness trial', with two subthemes: 'wanting "normal care"' and 'a belief that feeding is better'. CONCLUSION Introducing a novel form of consent proved challenging in practice. The principle of a simplified, opt-out approach to consent was generally considered feasible and acceptable by health professionals for a neonatal comparative effectiveness trial. The priority for parents was having the right to decide about trial participation, and they did not see opt-out consent as undermining this. Describing a study as 'opt-out' can help to normalise participation and emphasise that parents can withdraw consent.
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Efficacy of Docosahexaenoic Acid for the Prevention of Necrotizing Enterocolitis in Preterm Infants: A Randomized Clinical Trial.
Bernabe-García, M, Calder, PC, Villegas-Silva, R, Rodríguez-Cruz, M, Chávez-Sánchez, L, Cruz-Reynoso, L, Mateos-Sánchez, L, Lara-Flores, G, Aguilera-Joaquín, AR, Sánchez-García, L
Nutrients. 2021;(2)
Abstract
Necrotizing enterocolitis (NEC) is an inflammatory bowel disease and a leading cause of morbidity and mortality in preterm infants. In this study, a randomized double-blind parallel-group (1:1) trial was carried out in two neonatal intensive care units of two tertiary hospitals. Two hundred and twenty-five preterm newborns with an expected functional gastrointestinal tract were recruited and received an enteral dose of 75 mg of docosahexaenoic acid (DHA)/kg body weight or high-oleic sunflower oil daily for 14 days from the first enteral feed after birth. Confirmed NEC was evaluated with Bell's scale from stage ≥ IIa. Two hundred and fourteen randomized infants were analyzed in terms of the intent-to-treat (DHA-group: n = 105; control-group: n = 109); data for two hundred infants were analysed per protocol. Confirmed NEC was lower in infants from the DHA-group compared with the control-group (0/100 vs. 7/100; p = 0.007), with RR = 0.93 (95% CI 0.881 to 0.981), risk difference = -7%, (95% CI -12.00 to -1.99), and number needed-to-treat = 15 (95% CI 8.3 to 50). Intent-to-treat analysis showed a lower level of treatment failure in the DHA-group compared with the control-group (6/105 (6%) vs. 16/109 (15%); p = 0.03, RR = 0.905, (95% CI 0.826 to 0.991)). The results after multivariate-regression analysis remained significant. Adverse events (apart from the incidence of NEC) were not different between groups. A daily dose of DHA for 14 days starting with the first enteral feed may prevent NEC in preterm infants.
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Effect of enteral erythropoietin on feeding-related complications in preterm newborns: A pilot randomized controlled study.
Omar, OM, Massoud, MN, Ghazal, H, Hassouna, H, Somaa, MF
Arab journal of gastroenterology : the official publication of the Pan-Arab Association of Gastroenterology. 2020;(1):37-42
Abstract
BACKGROUND AND STUDY AIMS To evaluate the effects of enteral administration of recombinant human erythropoietin (rhEPO) on feeding-related complications in preterm infants. PATIENTS AND METHODS This double-blind, randomized controlled pilot study enrolled 120 preterm infants born ≤ 32 weeks' gestation who were admitted to the neonatal intensive care unit in a tertiary hospital; 60 patients randomly received recombinant human erythropoietin while the other 60 received placebo. Newborns who underwent cardiopulmonary resuscitation, infants with genetic syndromes, infants with inborn errors of metabolism, infants with major congenital or acquired gastrointestinal tract malformations, infants with previous use of parenteral growth factors such as recombinant human erythropoietin and granulocyte-macrophage colony-stimuating factor (GM-CSF) and infants previously treated with intravenous immunoglobulin were excluded. Overall, 48 patients withdrew from the study because of intravenous haematopoietic growth factor intake or death before treatment was completed. A total of 72 preterm infants remained in the study: 36 preterm infants in the erythropoietin (EPO) group, and 36 preterm infants in the placebo group. The day that enteral feeding was successfully started, the time to establishing one-half, two-thirds, and full enteral feedings (reaching at least 150 mL/kg/day), the number of episodes of feeding intolerance, the time to regain birth weight and the incidence of necrotizing enterocolitis (NEC) were recorded. RESULTS Both groups showed no significant difference in the time to achieve one-half, two-thirds, or full enteral feeding, no signs of feeding intolerance, and no cases of NEC were recorded. CONCLUSION Enteral erythropoietin does not appear to affect feeding intolerance or NEC incidence.
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Does fortification of pasteurized donor human milk increase the incidence of necrotizing enterocolitis among preterm neonates? A randomized controlled trial.
Adhisivam, B, Kohat, D, Tanigasalam, V, Bhat, V, Plakkal, N, Palanivel, C
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2019;(19):3232-3237
Abstract
Objective: To compare the effect of fortified pasteurized donor human milk (PDHM) versus unfortified PDHM on the incidence of necrotizing enterocolitis (NEC) and immediate outcome among preterm neonates. Methods: This randomized controlled trial (RCT) conducted in a tertiary care teaching hospital, south India included 80 healthy preterm neonates randomized to two groups (Group A and B). Neonates in Group A and B were fed with fortified PDHM and unfortified PDHM, respectively. Neonates in both groups were managed uniformly as per standard NICU protocol. The primary outcome was the incidence of NEC and the secondary outcomes included severity of NEC, incidence of sepsis, mortality, duration of hospital stay, number of days to reach full enteral feeds and weight gain. Neonates were followed up for 28 days or discharge whichever was earlier. Results: The baseline maternal and neonatal characteristics in both groups were comparable. There was no increase in incidence of NEC in fortified PDHM group compared to unfortified PDHM group (2.5 versus 7.5%, p = .31). Severity of NEC, incidence of sepsis, mortality, duration of hospital stay, number of days to reach full enteral feeds and weight gain were also similar in both groups. Conclusions: Standard fortification of PDHM does not increase the incidence of NEC among preterm neonates.