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Safety and Immunogenicity of Pneumococcal Conjugate Formulations in Healthy Adults 18 Through 49 Years of Age

Pfizer logo

Pfizer

Status and phase

Completed
Phase 1

Conditions

Pneumococcal Disease

Treatments

Other: Candidate-6
Other: Candidate-5
Other: Candidate-1
Other: Candidate-2
Biological: PCV15
Other: Candidate-4
Other: Candidate Control
Biological: 13vPnC
Other: Candidate-3

Study type

Interventional

Funder types

Industry

Identifiers

NCT05489328
C4801001

Details and patient eligibility

About

The purpose of the study is to describe the safety and immunogenicity of Pneumococcal Conjugate Formulations in healthy adults 18 through 49 years of age.

Enrollment

394 patients

Sex

All

Ages

18 to 49 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Male or female participants ≥18 and ≤49 years of age at the time of consent
  • Adults determined by clinical assessment to be eligible for the study, including adults with preexisting stable disease within 12 weeks before receipt of study intervention
  • Participants willing to use acceptable contraception for at least 28 days after study intervention; female participants not of childbearing potential; male participants unable to father children

Exclusion criteria

  • History of severe adverse reaction associated with a vaccine and/or severe allergic reaction to any component in pneumococcal conjugate vaccines and any other diphtheria toxoid-containing vaccine
  • Serious chronic disorder that in the investigator's opinion would make the participant inappropriate for entry into the study
  • Medical or psychiatric condition (recent or active suicidal ideation/behavior or laboratory abnormality) that may increase risk of study participation or make participant inappropriate for the study
  • Known or suspected immunodeficiency or other conditions associated with immunosuppression
  • Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt of any licensed or investigational pneumococcal vaccine through study participation
  • Receipt of any inactivated or otherwise nonlive vaccine within 14 days or any live vaccine within 28 days before administration of study intervention

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

394 participants in 9 patient groups

Candidate-1
Experimental group
Description:
Participants to receive a single injection of Candidate-1.
Treatment:
Other: Candidate-1
Candidate-2
Experimental group
Description:
Participants to receive a single injection of Candidate-2.
Treatment:
Other: Candidate-2
Candidate-3
Experimental group
Description:
Participants to receive a single injection of Candidate-3.
Treatment:
Other: Candidate-3
Candidate-4
Experimental group
Description:
Participants to receive a single injection of Candidate-4.
Treatment:
Other: Candidate-4
Candidate-5
Experimental group
Description:
Participants to receive a single injection of Candidate-5.
Treatment:
Other: Candidate-5
Candidate-6
Experimental group
Description:
Participants to receive a single injection of Candidate-6.
Treatment:
Other: Candidate-6
Candidate Control
Active Comparator group
Description:
Participants to receive a single injection of Candidate Control.
Treatment:
Other: Candidate Control
13-valent pneumococcal conjugate vaccine (13vPnC)
Other group
Description:
Participants to receive a single injection of 13vPnC.
Treatment:
Biological: 13vPnC
15-valent pneumococcal conjugate vaccine (PCV15)
Other group
Description:
Participants to receive a single injection of PCV15.
Treatment:
Biological: PCV15

Trial documents
2

Trial contacts and locations

18

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Data sourced from clinicaltrials.gov

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