NCT05730569

Brief Summary

The aim of the DenBalo study is to apply integrated multi-omics methods to examine the biological mechanisms underlying this vulnerability in Small Vulnerable Newborns (SVNs) 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. 1.To describe and compare gut microbiota, immune system and breastmilk components in SVNs versus healthy community controls in urban Burkina Faso.
  2. 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 SVNs versus healthy community controls in urban Burkina Faso.
  3. 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 SVNs versus healthy community controls in urban Burkina Faso.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
140

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2023

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 9, 2023

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

January 12, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 16, 2023

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2024

Completed
Last Updated

May 31, 2024

Status Verified

May 1, 2024

Enrollment Period

1.6 years

First QC Date

January 12, 2023

Last Update Submit

May 29, 2024

Conditions

Keywords

Preterm BirthLow Birth WeightSmall for Gestational AgeSmall Vulnerable Newborn

Outcome Measures

Primary Outcomes (1)

  • Differential abundances of bacterial genera in the infant gut microbiota

    Shotgun metagenomic sequencing

    to be assessed at on days 3, 7, 14, 30, 60, 180 of life

Secondary Outcomes (4)

  • Infant gut microbiota α and β diversity

    to be assessed at on days 3, 7, 14, 30, 60, 180 of life

  • Infant plasma immunophenotyping

    to be assessed at birth and on days 1, 3, 5, 7, 30, 60 of life

  • Infant plasma chemokine and cytokine analyses

    to be assessed at birth and on days 1, 3, 5, 7, 30, 60 of life

  • Maternal breastmilk component* profiling

    on days 3, 7, 14, 30, 60 of life

Other Outcomes (21)

  • Differential abundance of bacterial populations of pregnant or lactating woman (PLW) fecal microbiota

    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

  • PLW Infant fecal microbiota α and β diversity

    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

  • PLW fecal enteropathogens

    to be assessed within 28-30 weeks of gestation, within 33-34 weeks of gestation, on days 30 and 180 of life

  • +18 more other outcomes

Study Arms (2)

Small Vulnerable Newborns

* Low birth weight: \<2500g; and/or, * Preterm: born between the 34th and 37th week of pregnancy; and/or, * Small for Gestational Age: \<10 percentile of INTERGROWTH-21st birthweight standards.

Healthy Community Controls

* Born after the 37th week of pregnancy; and, * Birth weight ≥2500g; and, * ≥10 percentile of INTERGROWTH-21st birthweight standards.

Eligibility Criteria

Age15 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population is composed of all pregnant women at the beginning of the third trimester of their pregnancy attending regular antenatal consultations (ANC) at Accart-Ville, Colma 1 or Farakan health centers.

You may qualify if:

  • Fundal height between 24 and 27 cm
  • Woman living in the health zone of Accart-Ville, Colma 1 or Farakan
  • 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 24 weeks 0 completed day and 29 weeks 6 days (ultrasound)
  • Monofetal pregnancy without visible malformation
  • Woman agreeing to give her informed consent to participate in the study
  • 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 Small Vulnerable Newborns (SVNs):
  • Low birth weight: \<2500g; and/or,
  • Preterm: born between the 34th and 37th week of pregnancy; and/or,
  • Small for Gestational Age: \<10 percentile of INTERGROWTH-21st birthweight standards.
  • For healthy community controls:
  • +4 more criteria

You may not qualify if:

  • Fundal height \<24 cm or \>27 cm
  • Woman living outside the sanitary zone of the Accart-Ville, Colma 1 or Farakan
  • 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 \<24 weeks or ≥30 weeks (ultrasound)
  • Multi-fetal pregnancy
  • Malformation visible on ultrasound
  • Cesarean delivery
  • Neonate with severe infectious disease, severe pneumopathy or respiratory distress
  • Neonate who received corticosteroids or antibiotics just after birth

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Agence de Formation, de Recherche et d'Expertise en Santé pour l'Afrique (AFRICSanté)

Bobo-Dioulasso, Burkina Faso

RECRUITING

Related 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.

    PMID: 33329546BACKGROUND
  • 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.

    PMID: 24304052BACKGROUND
  • 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.

    PMID: 32284564BACKGROUND
  • 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.

    PMID: 22513036BACKGROUND
  • 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.

    PMID: 23778794BACKGROUND
  • 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.

    PMID: 23976878BACKGROUND
  • 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.

    PMID: 33245565BACKGROUND
  • 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.

    PMID: 24033881BACKGROUND
  • 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.

    PMID: 28329702BACKGROUND
  • 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.

    PMID: 30862783BACKGROUND
  • 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.

    PMID: 32978424BACKGROUND
  • 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.

    PMID: 24244304BACKGROUND
  • 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.

    PMID: 21821739BACKGROUND
  • 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.

    PMID: 23734091BACKGROUND
  • 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.

    PMID: 29207565BACKGROUND
  • 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.

    PMID: 28950816BACKGROUND
  • 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.

    PMID: 23178065BACKGROUND

MeSH Terms

Conditions

Premature Birth

Condition Hierarchy (Ancestors)

Obstetric Labor, PrematureObstetric Labor ComplicationsPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Study Officials

  • Trenton Dailey-Chwalibóg, MPH, PhD

    University Ghent

    PRINCIPAL INVESTIGATOR
  • Carl Lachat, MEng, PhD

    University Ghent

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Trenton Dailey-Chwalibóg, MPH, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 12, 2023

First Posted

February 16, 2023

Study Start

January 9, 2023

Primary Completion

July 31, 2024

Study Completion

July 31, 2024

Last Updated

May 31, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will share

All the data collected during the DenBalo study will be pseudonymised (i.e., identifable data can still be linked to patient files by means of a code) and the key to the codes will only be accessible to the principal investigators, or his/her representative. The collected pseudonymised data as well as the collected biological samples can be shared with other (future) researchers for future research projects and studies, exclusively in the context of the same disease/pathology or similar (i.e., in the interest of research on maternal, newborn and child health). This will be done within a strictly legal framework and in compliance with international laws on the protection of personal data. Only anonymized data will be used in any type of documentation, reports or publications (in the medical scientific literature and/or at medical conferences). Personal patient data will be stored for at least 25 years after the end of the study.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
Data will be on embargo for a period of 18 months post study implementation.
Access Criteria
Upon reasonable request.

Locations