Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 to 69

Serum collection after Gamma-PN vaccination to support assay development

Official title: A Phase 1B Open-label Study to Collect Serum Following Vaccination With Killed Whole-cell Pneumococcal Vaccine (Gamma-PN) in Adults for Use in Assay Validation

Run by GPN Vaccines · NCT07205289 · Data updated 2026-11-12

This project will collect blood samples from people who receive the Gamma-PN vaccine to help develop lab tests for pneumococcal disease.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years to 69 Years
SexAll
Enrollment12 (estimated)
SponsorGPN Vaccines
Industry-sponsored
Locations1 site (Adelaide, South Australia)
StatusRecruiting
StartedOctober 2025
Main results expectedJanuary 2026
Study endsJune 2026
Registry record updatedOctober 3, 2025
Trial IDNCT07205289 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults in good general health who have not previously received a pneumococcal vaccine and can attend the University of Adelaide site for dosing and a Day 28 follow-up visit.

Probably not a fit

People who have already received a pneumococcal vaccine or who are seeking direct treatment benefit from vaccination are unlikely to gain personal clinical benefit from participation.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Twelve participants will receive a single dose of Gamma-PN and have serum collected before dosing and again on Day 28 to provide samples for assay development and validation. The open-label, Phase 1 interventional protocol is limited to one site at the University of Adelaide Clinical Research Facility. Eligible volunteers must be in good general health and not have previously received a pneumococcal vaccine. Samples will be used to optimize and validate laboratory methods rather than to measure therapeutic outcomes.

Why it matters

Potential benefit: If successful, this work could produce more reliable lab tests to measure immune responses to pneumococcal vaccination and support future vaccine development.

How similar studies have gone: Collecting serum after vaccination is a common and generally successful method for developing and validating assays, although data specific to Gamma-PN are limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* good general health

Exclusion Criteria:

* no previous pneumococcal vaccine

Where it's running

  • University of Adelaide Clinical Research Facility
    Adelaide, South Australia, Australia
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.