BEATRIX: A Study to Learn About a Group B Streptococcus Vaccine in Healthy Pregnant Women and Their Babies

StatusRecruiting
PhasePhase 3
SponsorPfizer
Started

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Record History

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  1. Minor Trial sites expanded: 206 → 216 locations
    • Eligibility criteria expanded, about 10 words
    • Secondary endpoints: details revised at 1 of 6 entries
  2. Minor Trial sites reduced: 212 → 206 locations
    • Trial sites expanded: 207 → 212 locations
    v21
  3. Minor Study sites: 207 to 212v20
  4. Minor Trial sites expanded: 202 → 207 locationsv19
  5. Minor Trial sites expanded: 198 → 202 locationsv18
  6. Minor Trial sites expanded: 179 → 198 locationsv17
  7. Notable Primary endpoint(s) modified
    • Study sites: 178 to 179
    • Secondary endpoints revised (6)
    v16
  8. Minor Study sites: 177 to 178v15
  9. Minor Trial sites expanded: 165 → 177 locationsv14
  10. Minor Trial sites expanded: 162 → 165 locationsv13
  11. Minor Trial sites expanded: 158 → 162 locationsv12
  12. Minor Trial sites expanded: 105 → 158 locationsv11
  13. Minor Site details revised at 1 of 105 sitesv10
  14. Minor Study sites: 81 to 105v9
  15. Minor Study sites: 71 to 81v8
  16. Minor Study sites: 42 to 71v7
  17. Minor Study sites: 23 to 42v6
  18. Minor Study sites: 19 to 23v5
  19. Minor Study sites: 12 to 19v4
  20. Minor Study sites: 14 to 12v3
  21. Minor Study sites: 10 to 14v2
  22. Minor Study First Submitted
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
438 trials monitored
See 32 trials at risk
BEATRIX (group B strEptococcus mATeRnal and Infant VaX study) The purpose of this study is to learn about the safety and how the group B streptococcus (GBS) vaccine works in pregnant women and their babies. This study is seeking healthy pregnant participants: * aged 49 or younger who can join. * between 24 and 36 weeks of gestation ("Gestational age" is a medical term used to describe how far along your pregnancy is) * had a fetal ultrasound examination performed with no major fetal abnormalities observed * documented negative for HIV, syphilis and Hepatitis B All participants in this study will receive only 1 shot in an arm. This could either be a group B streptococcus 6-valent polysaccharide conjugate vaccine (GBS6) or placebo. Placebo is an inactive substance used in the study for comparison purposes; in this study, the placebo injection will be saline (saltwater). The pregnant participants may take part in this study for a maximum of 14 months (6 months after delivery) , and their babies for about 12 months after they are born. The pregnant participants will need to visit the research site at least 3 to 4 times with some visits permitted to occur over the telephone. A subset of infants will be asked to take part in the study for up to 19 months. The subset will receive diphtheria toxoid-containing vaccine and/or pneumococcal vaccine following each country's standard immunization plan and have blood drawn 1 month after completion of the primary and/or toddler (booster) doses.
Trial Details
NCT Number NCT07160244
Lead Sponsor Pfizer
Conditions
(from sponsor)
Healthy
Enrollment 6,000 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov