Automated Versus Manual Control Of Oxygen For Preterm Infants On Continuous Positive Airway Pressure In Nigeria
NCT ID: NCT05508308
Last Updated: 2023-11-13
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
49 participants
INTERVENTIONAL
2022-09-13
2023-09-29
Brief Summary
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Oxygen in excess can damage the immature eyes (Retinopathy of Prematurity \[ROP\]) and lungs (Chronic Lung Disease) of preterm babies. Historically, in well-resourced settings, excessive oxygen administration to newborns has been associated with 'epidemics' of ROP associated blindness. Today, with increasing survival of preterm babies in SSA, and increasing access to oxygen and bCPAP, there are concerns about an emerging epidemic of ROP. Manually adjusting the amount of oxygen provided to an infant on bCPAP is difficult, and fearing the risks of hypoxaemia (low oxygen levels) busy health workers often accept hyperoxaemia (excessive oxygen levels). Some well resourced neonatal intensive care units globally have adopted Automated Oxygen Control (AOC), where a computer uses a baby's oxygen saturation by pulse oximetry (SpO2) to frequently adjust how much oxygen is provided, targetting a safe SpO2 range. This technology has never been tested in SSA, or partnered with bCPAP devices that would be more appropriate for SSA.
This study aims to compare AOC coupled with a low cost and robust bCPAP device (Diamedica Baby CPAP) - OxyMate - with manual control of oxygen for preterm babies on bCPAP in two hospitals in south west Nigeria. The hypothesis is that OxyMate can significantly and safely increase the proportion of time preterm infants on bCPAP spend in safe oxygen saturation levels.
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Detailed Description
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Objectives: This trial seeks to examine safety and potential efficacy of our automated oxygen configuration (OxyMate) in preterm infants in a setting characterised by financial constraints, workforce limitations, and underdeveloped infrastructure, and assess contextual feasibility and appropriateness to inform future definitive clinical trials and product development.
Conditions
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Study Design
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RANDOMIZED
CROSSOVER
TREATMENT
NONE
Study Groups
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Manual oxygen control
Oxygen therapy delivered with bCPAP as per standard practice, except for the addition of continuous pulse oximetry. Nursing staff will make manual adjustments to Fraction of Inspired Oxygen (FiO2) provided to infants on bCPAP. Oxygen saturations (SpO2) will be monitored by continuous pulse oximetry, and nurses asked to target the range of SpO2 91-95%. Pulse oximeter alarms will be set to alert nurses to periods of hypoxaemia (SpO2\<88%) and hyperoxaemia (SpO2\>96%).
Manual oxygen control
Guidelines and training in FiO2 titration to achieve a target range of SpO2. Health workers instructed in responding to continuous pulse oximetry readings and alarms
OxyMate Automated Oxygen Control
Automated control of oxygen therapy partnered with bCPAP delivered as per standard practice. The automated oxygen control set-up (OxyMate) will consist of: continuous pulse oximetry input, a computer algorithm (VDL1.1) that calculates changes to delivered FiO2 based on the input SpO2, and a mechanism to automatically effect changes to delivered FiO2. The system will target an SpO2 of 93% (mid-point of the target range). There will be several embedded safety mechanisms, including the ability to manually over-ride OxyMate at any stage. Pulse oximeter alarms will be as for the manual control arm, with additional automated system alarms in place.
OxyMate
Automated Oxygen Control algorithm (VDL 1.1) coupled with Diamedica Baby CPAP device
Interventions
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OxyMate
Automated Oxygen Control algorithm (VDL 1.1) coupled with Diamedica Baby CPAP device
Manual oxygen control
Guidelines and training in FiO2 titration to achieve a target range of SpO2. Health workers instructed in responding to continuous pulse oximetry readings and alarms
Eligibility Criteria
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Inclusion Criteria
* ≥12 hours old
* Receiving CPAP support and supplemental oxygen (FiO2 \>0.21) for respiratory insufficiency
* Projected requirement for CPAP and oxygen therapy for \> 48 hours
Exclusion Criteria
* Deemed clinically unstable or recommended for palliation by treating team
* Cause of hypoxaemia likely to be non-respiratory - e.g. cyanotic heart disease
* Informed consent from parent/guardians not obtained
12 Hours
1 Month
ALL
No
Sponsors
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University of Tasmania
OTHER
University College Hospital, Ibadan
OTHER
Sacred Heart Hospital Lantoro
UNKNOWN
University of Ibadan
OTHER
Murdoch Childrens Research Institute
OTHER
Responsible Party
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Principal Investigators
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Hamish R Graham, PhD
Role: PRINCIPAL_INVESTIGATOR
Murdoch Childrens Research Institute
Locations
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Sacred Heart Hospital
Lantoro, Abeokuta, Nigeria
University College Hospital
Agodi, Ibadan, Nigeria
Countries
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References
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Chawanpaiboon S, Vogel JP, Moller AB, Lumbiganon P, Petzold M, Hogan D, Landoulsi S, Jampathong N, Kongwattanakul K, Laopaiboon M, Lewis C, Rattanakanokchai S, Teng DN, Thinkhamrop J, Watananirun K, Zhang J, Zhou W, Gulmezoglu AM. Global, regional, and national estimates of levels of preterm birth in 2014: a systematic review and modelling analysis. Lancet Glob Health. 2019 Jan;7(1):e37-e46. doi: 10.1016/S2214-109X(18)30451-0. Epub 2018 Oct 30.
WHO Recommendations on Interventions to Improve Preterm Birth Outcomes. Geneva: World Health Organization; 2015. Available from http://www.ncbi.nlm.nih.gov/books/NBK321160/
Gilbert C. Retinopathy of prematurity: a global perspective of the epidemics, population of babies at risk and implications for control. Early Hum Dev. 2008 Feb;84(2):77-82. doi: 10.1016/j.earlhumdev.2007.11.009. Epub 2008 Jan 29.
BOOST-II Australia and United Kingdom Collaborative Groups; Tarnow-Mordi W, Stenson B, Kirby A, Juszczak E, Donoghoe M, Deshpande S, Morley C, King A, Doyle LW, Fleck BW, Davis PG, Halliday HL, Hague W, Cairns P, Darlow BA, Fielder AR, Gebski V, Marlow N, Simmer K, Tin W, Ghadge A, Williams C, Keech A, Wardle SP, Kecskes Z, Kluckow M, Gole G, Evans N, Malcolm G, Luig M, Wright I, Stack J, Tan K, Pritchard M, Gray PH, Morris S, Headley B, Dargaville P, Simes RJ, Brocklehurst P. Outcomes of Two Trials of Oxygen-Saturation Targets in Preterm Infants. N Engl J Med. 2016 Feb 25;374(8):749-60. doi: 10.1056/NEJMoa1514212. Epub 2016 Feb 10.
Askie LM, Darlow BA, Finer N, Schmidt B, Stenson B, Tarnow-Mordi W, Davis PG, Carlo WA, Brocklehurst P, Davies LC, Das A, Rich W, Gantz MG, Roberts RS, Whyte RK, Costantini L, Poets C, Asztalos E, Battin M, Halliday HL, Marlow N, Tin W, King A, Juszczak E, Morley CJ, Doyle LW, Gebski V, Hunter KE, Simes RJ; Neonatal Oxygenation Prospective Meta-analysis (NeOProM) Collaboration. Association Between Oxygen Saturation Targeting and Death or Disability in Extremely Preterm Infants in the Neonatal Oxygenation Prospective Meta-analysis Collaboration. JAMA. 2018 Jun 5;319(21):2190-2201. doi: 10.1001/jama.2018.5725.
Sink DW, Hope SA, Hagadorn JI. Nurse:patient ratio and achievement of oxygen saturation goals in premature infants. Arch Dis Child Fetal Neonatal Ed. 2011 Mar;96(2):F93-8. doi: 10.1136/adc.2009.178616. Epub 2010 Oct 30.
Gantz MG, Carlo WA, Finer NN, Rich W, Faix RG, Yoder BA, Walsh MC, Newman NS, Laptook A, Schibler K, Das A, Higgins RD; SUPPORT Study Group of the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network. Achieved oxygen saturations and retinopathy of prematurity in extreme preterms. Arch Dis Child Fetal Neonatal Ed. 2020 Mar;105(2):138-144. doi: 10.1136/archdischild-2018-316464. Epub 2019 Jun 22.
Hagadorn JI, Furey AM, Nghiem TH, Schmid CH, Phelps DL, Pillers DA, Cole CH; AVIOx Study Group. Achieved versus intended pulse oximeter saturation in infants born less than 28 weeks' gestation: the AVIOx study. Pediatrics. 2006 Oct;118(4):1574-82. doi: 10.1542/peds.2005-0413.
Walker PJB, Bakare AA, Ayede AI, Oluwafemi RO, Olubosede OA, Olafimihan IV, Tan K, Duke T, Falade AG, Graham H. Using intermittent pulse oximetry to guide neonatal oxygen therapy in a low-resource context. Arch Dis Child Fetal Neonatal Ed. 2020 May;105(3):316-321. doi: 10.1136/archdischild-2019-317630. Epub 2019 Aug 28.
Sturrock S, Williams E, Dassios T, Greenough A. Closed loop automated oxygen control in neonates-A review. Acta Paediatr. 2020 May;109(5):914-922. doi: 10.1111/apa.15089. Epub 2019 Nov 27.
Mitra S, Singh B, El-Naggar W, McMillan DD. Automated versus manual control of inspired oxygen to target oxygen saturation in preterm infants: a systematic review and meta-analysis. J Perinatol. 2018 Apr;38(4):351-360. doi: 10.1038/s41372-017-0037-z. Epub 2018 Jan 2.
Dargaville PA, Marshall AP, McLeod L, Salverda HH, Te Pas AB, Gale TJ. Automation of oxygen titration in preterm infants: Current evidence and future challenges. Early Hum Dev. 2021 Nov;162:105462. doi: 10.1016/j.earlhumdev.2021.105462. Epub 2021 Sep 4.
Salverda HH, Cramer SJE, Witlox RSGM, Gale TJ, Dargaville PA, Pauws SC, Te Pas AB. Comparison of two devices for automated oxygen control in preterm infants: a randomised crossover trial. Arch Dis Child Fetal Neonatal Ed. 2022 Jan;107(1):20-25. doi: 10.1136/archdischild-2020-321387. Epub 2021 Jun 10.
Plottier GK, Wheeler KI, Ali SK, Fathabadi OS, Jayakar R, Gale TJ, Dargaville PA. Clinical evaluation of a novel adaptive algorithm for automated control of oxygen therapy in preterm infants on non-invasive respiratory support. Arch Dis Child Fetal Neonatal Ed. 2017 Jan;102(1):F37-F43. doi: 10.1136/archdischild-2016-310647. Epub 2016 Aug 29.
Dargaville PA, Sadeghi Fathabadi O, Plottier GK, Lim K, Wheeler KI, Jayakar R, Gale TJ. Development and preclinical testing of an adaptive algorithm for automated control of inspired oxygen in the preterm infant. Arch Dis Child Fetal Neonatal Ed. 2017 Jan;102(1):F31-F36. doi: 10.1136/archdischild-2016-310650. Epub 2016 Sep 15.
Dargaville PA, Marshall AP, Ladlow OJ, Bannink C, Jayakar R, Eastwood-Sutherland C, Lim K, Ali SKM, Gale TJ. Automated control of oxygen titration in preterm infants on non-invasive respiratory support. Arch Dis Child Fetal Neonatal Ed. 2022 Jan;107(1):39-44. doi: 10.1136/archdischild-2020-321538. Epub 2021 May 7.
Subhi R, McLeod L, Ayede AI, Dedeke IO, Risikat Q, Akanbi AR, Fasasi AB, Bakare AA, Adeniyi OH, Akinrinoye O, Adeigbe O, Dargaville GF, Walker P, Grobler AC, Mosebolatan O, Badurdeen S, Gale TJ, Falade AG, Dargaville PA, Graham HR. Automated oxygen control for preterm infants receiving continuous positive airway pressure in southwest Nigeria: an open-label, randomised, crossover trial. Lancet Glob Health. 2025 Feb;13(2):e246-e255. doi: 10.1016/S2214-109X(24)00458-3.
Other Identifiers
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HREC84704
Identifier Type: -
Identifier Source: org_study_id
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