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临床试验/NCT07573462
NCT07573462招募中3 期

A PHASE 3, RANDOMIZED, DOUBLE-BLINDED TRIAL TO EVALUATE THE SAFETY AND TOLERABILITY OF A MULTIVALENT PNEUMOCOCCAL CONJUGATE VACCINE IN HEALTHY INFANTS

Pfizer49 个研究点 分布在 6 个国家目标入组 2,400 人开始时间: 2026年5月4日最近更新:
干预措施

试验速览

阶段
3 期
状态
招募中
发起方
Pfizer
入组人数
2,400
试验地点
49

研究概览

简要总结

The purpose of this study is to learn about the safety of a new pneumococcal vaccine and how the new pneumococcal vaccine helps to fight against germs that can cause pneumonia (lung infections), meningitis (brain infections), and otitis media (ear infections) in infants when compared to the pneumococcal vaccine that is currently in use, 20vPnC (Prevnar 20®).

This study will test if the new pneumococcal vaccine is as safe as the one that is currently in use. This new vaccine can possibly provide additional protection against germs that cause pneumococcal disease that are not included in the vaccines that are currently given to infants. Pneumococcal disease includes a variety of infections caused by a specific germ, Streptococcus pneumoniae.

There are two groups in this study. All participants will be assigned to one of the two groups. This study is seeking participants who are:

- infants who are about 2 months of age

About 2400 infants will be assigned by chance to one of the two groups to receive either PG4 (new vaccine) or 20vPnC (currently in use) into the left thigh muscle at 2, 4, 6, and 12 to 15 months of age.

Infants will take part in this study for about 16 to 19 months (about 1 and a half years). During this time, infants will have 6 study clinic visits and 1 phone call. At these study clinic visits, parent(s)/legal guardian(s) will be asked if the infant experienced any side effects. A side effect is an unintentional or unexpected reaction to a vaccine.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Prevention
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
42 Days 至 98 Days(Child)
性别
All
接受健康志愿者

入选标准

  • Infants who are about 2 months of age
  • Healthy infants determined by clinical assessment, including medical history and clinical judgment, to be eligible for the study.

排除标准

  • History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis).
  • Major known congenital malformation or serious chronic disorder.
  • Other acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the participant inappropriate for entry into this study.
  • Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt through study participation.

研究组 & 干预措施

PG4 (intramuscular)

Experimental

Multivalent Pneumococcal Vaccine

干预措施: PG4 (Biological)

20-valent pneumococcal conjugate vaccine (20vPnC) (intramuscular)

Active Comparator

20-valent pneumococcal conjugate vaccine (20vPnC)

干预措施: 20-valent pneumococcal conjugate vaccine (20vPnC) (Biological)

研究者

发起方
Pfizer
申办方类型
Industry
责任方
Sponsor

研究点 (49)

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