A Trial to Evaluate the Safety and Immune Response of an Investigational Pneumococcal Vaccine in Adults 50 To 64 Years of Age

NCT ID: NCT07105722

Last Updated: 2025-12-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1

Total Enrollment

127 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-12

Study Completion Date

2026-06-09

Brief Summary

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This clinical study is designed to evaluate an investigational pneumococcal vaccine named Pn-MAPS30plus. The vaccine is designed to stimulate the immune system to produce antibodies against various serotypes of the S. pneumoniae bacteria, potentially aiding the body in fighting infection upon exposure. Pn-MAPS30plus aims to broaden protection by covering more serotypes than currently licensed pneumococcal vaccines. The study's purpose is to determine whether the vaccine is safe, well-tolerated, and effective in inducing immune responses against S. pneumoniae.

Detailed Description

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Conditions

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Pneumonia, Bacterial

Keywords

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Streptococcus pneumoniae Pn-MAPS30plus 20 valent pneumococcal conjugate vaccine (PCV20)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors
This trial will be conducted in an observer-blind manner.

Study Groups

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Pn-MAPS30plus Group

Participants receive a single dose of Pn-MAPS30plus on Day 1.

Group Type EXPERIMENTAL

Pn-MAPS30plus

Intervention Type BIOLOGICAL

The Pn-MAPS30plus vaccine will be administered intramuscularly.

PCV20 Group

Participants receive a single dose of PCV20 on Day 1.

Group Type ACTIVE_COMPARATOR

PCV20

Intervention Type COMBINATION_PRODUCT

The PCV20 vaccine will be administered intramuscularly.

Interventions

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Pn-MAPS30plus

The Pn-MAPS30plus vaccine will be administered intramuscularly.

Intervention Type BIOLOGICAL

PCV20

The PCV20 vaccine will be administered intramuscularly.

Intervention Type COMBINATION_PRODUCT

Eligibility Criteria

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Inclusion Criteria

1. Participants who, in the opinion of the investigator, can and will comply with the requirements of the protocol.
2. Written or witnessed/thumb printed informed consent obtained from the participant prior to performance of any trial-specific procedure.
3. Healthy male and female participants between and including 50 through 64 YOA at the time of Informed consent form (ICF) signature.
4. Female participants of childbearing potential may be enrolled if they practice adequate contraception and have a negative pregnancy test prior to study intervention administration.

Exclusion Criteria

1. History of microbiologically proven Invasive Pneumococcal Disease (IPD) caused by S. pneumoniae within the past 3 years.
2. History of any reaction or hypersensitivity likely to be exacerbated by any component of the study intervention(s).
3. Any confirmed or suspected immunosuppressive or immunodeficient condition.
4. Hypersensitivity to latex.
5. Clinical conditions representing a contraindication to intramuscular vaccination, and blood collection.
6. Documented history of Human immunodeficiency virus (HIV)-positive participant.
7. Acute or unstable chronic clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, or metabolic conditions as determined by the investigator.
8. Recurrent history of uncontrolled neurological or any neuroinflammatory disorders.
9. Any behavioural or cognitive impairment or psychiatric disease that, in the opinion of the investigator, may interfere with trial participation.
10. History of potential immune-mediated disorders (pIMDs).
11. Any other clinical condition that, might pose additional risk to the participant.
12. Use of any investigational or non-registered product other than the study interventions during the period beginning 30 days before the study intervention administration.
13. History of previous vaccination with any pneumococcal vaccine.
14. Receipt of blood or plasma products or immunoglobulins, from 90 days before study intervention administration, or planned receipt within 30 days of study intervention administration.
15. Chronic administration of immune-modifying drugs (defined as more than 14 consecutive days in total) and/or planned use of long-acting immune-modifying treatments at any time up to the end of the trial.
16. Pregnant or lactating female participant.
17. History of chronic alcohol consumption and/or drug abuse, based on investigator judgment.
Minimum Eligible Age

50 Years

Maximum Eligible Age

64 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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GSK Investigational Site

Norwood, South Australia, Australia

Site Status

GSK Investigational Site

Bayswater, Victoria, Australia

Site Status

GSK Investigational Site

Camberwell, Victoria, Australia

Site Status

GSK Investigational Site

East Melbourne, Victoria, Australia

Site Status

Countries

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Australia

Other Identifiers

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221544

Identifier Type: -

Identifier Source: org_study_id