A Study to Evaluate Safety, Reactogenicity, and Immunogenicity of the GSK 4-component Strep A Vaccine With Aluminum Hydroxide (Alum) or AS37 in Healthy Young Adults

NCT07085702 · Status: RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 108

Last updated 2025-08-11

No results posted yet for this study

Summary

The purpose of this study is to assess the safety of 3 doses of 2 new Strep A vaccine formulations, one with an Alum adjuvant, and the other with AS37 adjuvant. The Strep A vaccine will be tested for the first time in humans, in healthy young adults 18 to 25 years of age. The study will also assess if the vaccines have any immediate reactions and if they induce an immune response. A low, medium, and high dose of each formulation of the vaccine will be assessed in sequence.

Conditions

  • Streptococcal Infections

Interventions

BIOLOGICAL

Low dose Strep A Alum

Low dose Strep A Alum vaccine will be administered intramuscularly (IM)

BIOLOGICAL

Medium dose Strep A Alum

Medium dose Strep A Alum vaccine will be administered IM

BIOLOGICAL

High dose Strep A Alum

High dose Strep A Alum vaccine will be administered IM

BIOLOGICAL

Low dose Strep A AS37

Low dose Strep A AS37 vaccine will be administered IM

BIOLOGICAL

Medium dose Strep A AS37

Medium dose Strep A AS37 vaccine will be administered IM

BIOLOGICAL

High dose Strep A AS37

High dose Strep A AS37 vaccine will be administered IM

DRUG

Strep A Alum Placebo

Strep A Alum Placebo will be administered IM

Sponsors & Collaborators

  • HHS/BARDA

    collaborator UNKNOWN
  • Wellcome Trust

    collaborator OTHER
  • DHSC/GAMRIF

    collaborator UNKNOWN
  • Germany/BMBF

    collaborator UNKNOWN
  • GlaxoSmithKline

    lead INDUSTRY

Principal Investigators

  • King C Cheung · Emeritus Research

  • Juliet Freeborn · Emeritus Research

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Max Age
25 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-07-31
Primary Completion
2026-11-30
Completion
2026-11-30

Countries

  • Australia

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07085702 on ClinicalTrials.gov