Description and Comparison of Biological Vulnerability in Pre- Versus Full-Term Neonates in Urban Burkina Faso

Preterm Birth Clinical Trial

— DenBalo  

Official title:

Description and Comparison Biological Vulnerability in Pre- Versus Full-Term Neonates in Urban Burkina Faso (DenBalo): Gut Microbiota, Immune System, and Breastmilk Assembly and Development in the First Days and Weeks of Life

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05730569
• Other study ID #: DenBalo
• Secondary ID: INV-035474 & INV
• Status: Recruiting
• Start date: January 9, 2023
• Est. completion date: July 31, 2024

Study information

• Verified date: December 2023
• Source: University Ghent
• Contact: Trenton Dailey-Chwalibóg, M.P.H., Ph.D.
• Phone: +33603233614
• Email: Trenton[@]Dailey-Chwalibog.com
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The aim of the DenBalo study is to apply integrated multi-omics methods to examine the biological mechanisms underlying this vulnerability in preterm neonates in LMICs, with the ultimate goal of identifying targeted interventions to reduce morbidity and mortality in this high-risk population. The evidence generated from this project will ultimately help promote healthy pregnancies and the birth of healthy babies. To achieve this goal, three research objectives are proposed: 1. To describe and compare gut microbiota, immune system and breastmilk components in pre- versus full-term neonates in urban Burkina Faso. 2. To describe and compare the development of the gut microbiota, the immune system and breastmilk components during the first six months of life in pre- versus full-term infants in urban Burkina Faso. 3. To investigate the relationship between the composition of the gut microbiota, the immune system and breastmilk components during the first six months of life in pre- versus full-term infants in urban Burkina Faso.

Description:

The first days and weeks of life are characterized by a truly impressive cascade of biological processes that drive neonatal growth and development-all of which are crucial to preparing the newborn for life outside the womb. First, vaginal delivery exposes neonates to an important natural microbial inoculum from the vaginal microbiota in labor and from the maternal intestinal microbiota at birth. Together, these early colonization events lay the foundation for gut microbiota assembly, inform the arrival of subsequent species through microbial interactions, and dictate infant microbiota maturation. A recent study has shown that a handful of bacteria begin colonizing the infant gut within the first days of life, that gut microbes accumulate gradually over time, and that pioneer strains are retained after a month of life. Whether the gut microbial assembly, maturation, and functional potential differs between pre- versus full-term infants, or is coupled to growth and development, remains unresolved. Secondly, the first days and weeks of life represent a time of heightened vulnerability to infectious disease. Neonatal infections account for a tragic 40% of mortality in children under five years of age. This critical time period is increasingly seen as a key determinant in health over the entire lifespan. A recent study using a high-dimensional, unbiased approach to characterize neonatal immune system development reported a dramatic, purposeful trajectory in the first week of life. While much remains to be explored, what is known is that early microbial colonization is vital to optimal host immune development and protection from disease and that, after birth, the most important determinant of infant gut colonization is breastfeeding. The impacts of preterm birth on immune development and function remain enigmatic and the mediating effect of the gut microbiome unknown. Thirdly, neonatal nutrition plays a vital role in the two aforementioned processes-because breastfeeding both initiates tropic priming of the newborn gut and transfers numerous immunological factors to the baby. However, few studies have explored the synergy between neonatal microbiome and immunome development, and even fewer through the lens of newborn nutrition. Moreover, virtually zero studies include an integrated characterization of these processes in the preterm neonate. Evidence suggests that, compared to mothers of full-term neonates, the colostrum from mothers of preterm newborns has higher protein and fat content, free amino acids, sodium, and bioactive milk components including HMOs, cytokines, and lactoferrin. But because few studies have evaluated the association between early milk composition and infant growth and development, it is unclear which components are most imperative for a healthy gut microbiota and a robust immune system, particularly in the preterm infant. Major advances in systems biology approaches allowing for unbiased, integrated analyses of high-dimensional -omic databases have provided the critical bioinformatic toolkit required to address these questions. Indeed, the ground has never been more fertile for a step-change in commitment to high-impact research on neonatal microbiome and immunome development and the synergy with newborn nutrition.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 100
• Est. completion date: July 31, 2024
• Est. primary completion date: July 31, 2024
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 15 Years to 40 Years

Eligibility

INCLUSION CRITERIA

• Fundal height between 24 and 27 cm
• Woman living in the health zone of Accart-Ville or Colma 1
• Woman not planning to give birth or move outside the study area in the first 6 months of the infant's life
• Gestational age between 27 weeks 1 completed day and 30 weeks 6 days (ultrasound)
• Monofetal pregnancy without visible malformation
• Woman agreeing to give her informed consent to participate in the study
• Woman seen in labor before the rupture of membranes thus allowing vaginal sampling
• Delivery of a live birth
• Vaginal birth
• Absence of severe infectious pathology, severe pneumopathy or respiratory distress in the neonate
• Neonates who did not receive corticosteroids or antibiotics at birth

For preterm neonates:

• Neonate born between the 34th and 37th week of pregnancy
• Birth weight =2500 g and =1500 g

For full-term neonates:

• Neonate born after the 37th week of pregnancy
• Birth weight >2500g
• Possible match with a premature neonate already recruited into the study EXCLUSION CRITERIA
• Fundal height <24 cm or >27 cm
• Woman living outside the sanitary zone of the Accart-Ville or Colma 1
• Woman planning to give birth outside the study area or to move from it within the first 6 months of the infants's life
• Gestational age <27 weeks or =31 weeks (ultrasound)
• Multi-fetal pregnancy
• Malformation visible on ultrasound
• Woman seen in labor after rupture of membranes
• Cesarean delivery
• Neonate with severe infectious disease, severe pneumopathy or respiratory distress
• Neonate who received corticosteroids or antibiotics just after birth

For preterm neonates:

• Neonate born before the 34th week of pregnancy
• Birth weight >2500g or <1500g

For full-term neonates:

• Birth weight <2500g
• No matching possible with a premature neonate on the date of birth

Related Conditions & MeSH terms

• Premature Birth
• Preterm Birth

Locations

Country	Name	City	State
Burkina Faso	Agence de Formation, de Recherche et d'Expertise en Santé pour l'Afrique (AFRICSanté)	Bobo-Dioulasso

Sponsors (13)

Lead Sponsor	Collaborator
University Ghent	Agence de Formation, de Recherche & d'Expertise en Santé pour l'Afrique (AFRICSanté), Cedars-Sinai Medical Center, Centre Muraz, Hasselt University, Institut de Recherche en Sciences de la Santé (IRSS), Manitoba Interdisciplinary Lactation Center (MILC), Sapient Bioanalytics, Stanford University, Université NAZI BONI, University Hospital, Ghent, University of Manitoba, University of Virginia

Country where clinical trial is conducted

Burkina Faso, 

References & Publications (17)

Bennike TB, Fatou B, Angelidou A, Diray-Arce J, Falsafi R, Ford R, Gill EE, van Haren SD, Idoko OT, Lee AH, Ben-Othman R, Pomat WS, Shannon CP, Smolen KK, Tebbutt SJ, Ozonoff A, Richmond PC, van den Biggelaar AHJ, Hancock REW, Kampmann B, Kollmann TR, Levy O, Steen H. Preparing for Life: Plasma Proteome Changes and Immune System Development During the First Week of Human Life. Front Immunol. 2020 Oct 20;11:578505. doi: 10.3389/fimmu.2020.578505. eCollection 2020. — View Citation

Bhutta ZA, Black RE. Global maternal, newborn, and child health--so near and yet so far. N Engl J Med. 2013 Dec 5;369(23):2226-35. doi: 10.1056/NEJMra1111853. No abstract available. — View Citation

Bittinger K, Zhao C, Li Y, Ford E, Friedman ES, Ni J, Kulkarni CV, Cai J, Tian Y, Liu Q, Patterson AD, Sarkar D, Chan SHJ, Maranas C, Saha-Shah A, Lund P, Garcia BA, Mattei LM, Gerber JS, Elovitz MA, Kelly A, DeRusso P, Kim D, Hofstaedter CE, Goulian M, Li H, Bushman FD, Zemel BS, Wu GD. Bacterial colonization reprograms the neonatal gut metabolome. Nat Microbiol. 2020 Jun;5(6):838-847. doi: 10.1038/s41564-020-0694-0. Epub 2020 Apr 13. — View Citation

Bode L. Human milk oligosaccharides: every baby needs a sugar mama. Glycobiology. 2012 Sep;22(9):1147-62. doi: 10.1093/glycob/cws074. Epub 2012 Apr 18. — View Citation

Chu H, Mazmanian SK. Innate immune recognition of the microbiota promotes host-microbial symbiosis. Nat Immunol. 2013 Jul;14(7):668-75. doi: 10.1038/ni.2635. — View Citation

Funkhouser LJ, Bordenstein SR. Mom knows best: the universality of maternal microbial transmission. PLoS Biol. 2013;11(8):e1001631. doi: 10.1371/journal.pbio.1001631. Epub 2013 Aug 20. — View Citation

Granger CL, Embleton ND, Palmer JM, Lamb CA, Berrington JE, Stewart CJ. Maternal breastmilk, infant gut microbiome and the impact on preterm infant health. Acta Paediatr. 2021 Feb;110(2):450-457. doi: 10.1111/apa.15534. Epub 2020 Sep 16. — View Citation

Jost T, Lacroix C, Braegger CP, Rochat F, Chassard C. Vertical mother-neonate transfer of maternal gut bacteria via breastfeeding. Environ Microbiol. 2014 Sep;16(9):2891-904. doi: 10.1111/1462-2920.12238. Epub 2013 Sep 3. — View Citation

Kollmann TR, Kampmann B, Mazmanian SK, Marchant A, Levy O. Protecting the Newborn and Young Infant from Infectious Diseases: Lessons from Immune Ontogeny. Immunity. 2017 Mar 21;46(3):350-363. doi: 10.1016/j.immuni.2017.03.009. — View Citation

Lee AH, Shannon CP, Amenyogbe N, Bennike TB, Diray-Arce J, Idoko OT, Gill EE, Ben-Othman R, Pomat WS, van Haren SD, Cao KL, Cox M, Darboe A, Falsafi R, Ferrari D, Harbeson DJ, He D, Bing C, Hinshaw SJ, Ndure J, Njie-Jobe J, Pettengill MA, Richmond PC, Ford R, Saleu G, Masiria G, Matlam JP, Kirarock W, Roberts E, Malek M, Sanchez-Schmitz G, Singh A, Angelidou A, Smolen KK; EPIC Consortium; Brinkman RR, Ozonoff A, Hancock REW, van den Biggelaar AHJ, Steen H, Tebbutt SJ, Kampmann B, Levy O, Kollmann TR. Dynamic molecular changes during the first week of human life follow a robust developmental trajectory. Nat Commun. 2019 Mar 12;10(1):1092. doi: 10.1038/s41467-019-08794-x. — View Citation

Ma J, Li Z, Zhang W, Zhang C, Zhang Y, Mei H, Zhuo N, Wang H, Wang L, Wu D. Comparison of gut microbiota in exclusively breast-fed and formula-fed babies: a study of 91 term infants. Sci Rep. 2020 Sep 25;10(1):15792. doi: 10.1038/s41598-020-72635-x. — View Citation

Makino H, Kushiro A, Ishikawa E, Kubota H, Gawad A, Sakai T, Oishi K, Martin R, Ben-Amor K, Knol J, Tanaka R. Mother-to-infant transmission of intestinal bifidobacterial strains has an impact on the early development of vaginally delivered infant's microbiota. PLoS One. 2013 Nov 14;8(11):e78331. doi: 10.1371/journal.pone.0078331. eCollection 2013. — View Citation

Makino H, Kushiro A, Ishikawa E, Muylaert D, Kubota H, Sakai T, Oishi K, Martin R, Ben Amor K, Oozeer R, Knol J, Tanaka R. Transmission of intestinal Bifidobacterium longum subsp. longum strains from mother to infant, determined by multilocus sequencing typing and amplified fragment length polymorphism. Appl Environ Microbiol. 2011 Oct;77(19):6788-93. doi: 10.1128/AEM.05346-11. Epub 2011 Aug 5. — View Citation

Melville JM, Moss TJ. The immune consequences of preterm birth. Front Neurosci. 2013 May 21;7:79. doi: 10.3389/fnins.2013.00079. eCollection 2013. — View Citation

Mueller NT, Shin H, Pizoni A, Werlang IC, Matte U, Goldani MZ, Goldani HAS, Dominguez-Bello MG. Delivery Mode and the Transition of Pioneering Gut-Microbiota Structure, Composition and Predicted Metabolic Function. Genes (Basel). 2017 Dec 4;8(12):364. doi: 10.3390/genes8120364. — View Citation

Nayak S, Welling J, Burd I. Maternal Immunomodulation Therapy for Prevention of Preterm Birth and Prematurity-Related Morbidity: The New Era of Immuno-Perinatology. Curr Pharm Des. 2017;23(40):6125-6131. doi: 10.2174/1381612823666170926102615. — View Citation

Underwood MA. Human milk for the premature infant. Pediatr Clin North Am. 2013 Feb;60(1):189-207. doi: 10.1016/j.pcl.2012.09.008. Epub 2012 Oct 18. — View Citation

* Note: There are 17 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Differential abundance of bacterial populations of pregnant or lactating woman (PLW) fecal microbiota	Shotgun metagenomic sequencing	to be assessed within 28-30 weeks of gestation, within 33-34 weeks of gestation, on days 7, 14, 30, 60 and 180 of life
Other	PLW Infant fecal microbiota a and ß diversity	Shotgun metagenomic sequencing	to be assessed within 28-30 weeks of gestation, within 33-34 weeks of gestation, on days 7, 14, 30, 60 and 180 of life
Other	PLW fecal enteropathogens	TaqMan Array Card (TAC) qPCR to detect 62 infection targets of interest, including viruses, bacteria, protozoa and helminths.	to be assessed within 28-30 weeks of gestation, within 33-34 weeks of gestation, on days 30 and 180 of life
Other	Infant fecal enteropathogens	TaqMan Array Card (TAC) qPCR to detect 62 infection targets of interest, including viruses, bacteria, protozoa and helminths.	to be assessed within 28-30 weeks of gestation, within 33-34 weeks of gestation, on days 30 and 180 of life
Other	Maternal plasma immunophenotyping	Flow cytometery	to be assessed at birth
Other	Maternal plasma chemokine and cytokine analyses	Electrochemiluminescence and the MSD V-PLEX Human Biomarker 54-Plex Kit	to be assessed at birth
Other	Black carbon exposure in umbilical cord arterial blood	White-light generation under femtosecond pulsed illumination	to be assessed at birth
Other	Placental DNA adductiomics	Hybrid Quadrupole Orbitrap MS (Q-Exactive™) high-resolution mass spectrometry (HRMS)	to be assessed at birth
Other	Relative telomere length (TL) in umbilical cord arterial blood	qPCR	to be assessed at birth
Other	Infant untargeted metabolomics on capillary whole blood	Modified Agilent RapidFire 360 sample injector coupled to a high-resolution Agilent 6545B liquid chromatography Quadrupole Time-of-Flight (LC/Q-TOF) next-generation rapid liquid chromatography-mass spectrometry (rLC-MS)	to be assessed at birth, on days 1, 3, 5, 7, 14, 30 and 60 of life
Other	Infant untargeted plasma proteomics	Harmonized Orbitrap Exploris™ liquid chromatography-mass spectrometry (LC-MS)	to be assessed at birth, on days 1, 3, 5, 7, 14, 30 and 60 of life
Other	Infant multiple mycotoxin profiling on capillary whole blood	Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)	to be assessed at birth, on days 7, and 14 of life
Other	Maternal untargeted capillary whole blood metabolomics	Modified Agilent RapidFire 360 sample injector coupled to a high-resolution Agilent 6545B liquid chromatography Quadrupole Time-of-Flight (LC/Q-TOF) next-generation rapid liquid chromatography-mass spectrometry (rLC-MS)	to be assessed at birth
Other	Maternal untargeted plasma proteomics	Harmonized Orbitrap Exploris™ liquid chromatography-mass spectrometry (LC-MS)	to be assessed at birth
Other	Maternal multiple mycotoxin profiling on capillary whole blood	Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)	to be assessed at birth
Other	PLW shotgun vaginal metagenomics	Shotgun metagenomic sequencing	to be assessed at birth
Other	Breastmilk volume intake	"Dose-to-mother" deuterium oxide dilution	to be assessed on days 1, 3, 4, 13 and 14 of life
Primary	Change in differential abundances of bacterial genera in the infant gut microbiota	Shotgun metagenomic sequencing	to be assessed at birth and on days 1, 2, 3, 4, 5, 6, 7, 14, 30, 60, 180 of life
Secondary	Infant gut microbiota a and ß diversity	Shotgun metagenomic sequencing	to be assessed at birth and on days 1, 2, 3, 4, 5, 6, 7, 14, 30, 60, 180 of life
Secondary	Infant plasma immunophenotyping	Flow cytometery	to be assessed at birth and on days 1, 3, 5, 7, 30, 60 of life
Secondary	Infant plasma chemokine and cytokine analyses	Electrochemiluminescence and the MSD V-PLEX Human Biomarker 54-Plex Kit	to be assessed at birth and on days 1, 3, 5, 7, 30, 60 of life
Secondary	Maternal breastmilk component* profiling	*Components include macronutrients, micronutrients, oligosaccharides, growth factors, immunoglobulins, cytokines, metabolites, microbes, and proteins.	to be assessed at birth and on days 1, 3, 5, 7, 14, 30, 60 of life