Safety of Bifidobacterium breve (BBG-01) in preterm infants

Hiroyuki Kitajima1, Shinya Hirano1

  • 1Department of Neonatal Medicine, Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Osaka, Japan.

Insights

Adverse events from Bifidobacterium breve (BBG-01) are rare and mild. This probiotic preparation demonstrates superior safety in pediatric patients, including those with diarrhea and preterm infants.

Area of Science:

  • Microbiology
  • Pediatric Medicine
  • Clinical Pharmacy

Background:

  • Viable cells of Bifidobacterium breve (BBG-01) have been utilized in pediatric care since 1982 for conditions like intractable infantile diarrhea, preterm status, and post-pediatric surgery.
  • While BBG-01's efficacy is well-documented, reports of adverse events are exceptionally infrequent.

Purpose of the Study:

  • To investigate and document adverse events associated with Bifidobacterium breve (BBG-01) usage in clinical settings.
  • To assess the safety profile of BBG-01 based on reported occurrences and clinical details.

Main Methods:

  • A questionnaire survey was distributed to 109 physicians across 88 medical institutions where BBG-01 was administered.
  • The survey collected data on the frequency and specific details of any observed adverse events.

Main Results:

  • A response rate of 78.9% was achieved, with 86 clinicians from 70 institutions providing data.
  • The majority of BBG-01 treated patients (over 90%, totaling 23,092) were in pediatrics and premature/newborn medicine, primarily preterm infants and those with intractable diarrhea.
  • Four adverse events were reported: two cases of functional ileus in extremely premature infants due to starch aggregates, and two cases of bacteremia in surgical neonates caused by B. breve genetically identical to BBG-01. No severe adverse events with poor outcomes were noted.

Conclusions:

  • Adverse events linked to Bifidobacterium breve (BBG-01) administration occur with extremely low frequency.
  • The reported adverse events were mild in severity, underscoring the excellent safety profile of the BBG-01 preparation.
Abstract