Serum collection after Gamma-PN vaccination to support assay development

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

PHASE1 · GPN Vaccines · NCT07205289

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

Quick facts

PhasePHASE1
Study typeInterventional
Enrollment12 (estimated)
Ages18 Years to 69 Years
SexAll
SponsorGPN Vaccines (industry)
Locations1 site (Adelaide, South Australia)
Trial IDNCT07205289 on ClinicalTrials.gov

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.

Who should consider this trial

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.

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.

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

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* good general health

Exclusion Criteria:

* no previous pneumococcal vaccine

Where this trial is running

Adelaide, South Australia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Pneumococcal Disease, Invasive, Pneumococcal Disease, Vaccination pneumococcal

Last reviewed 2026-05-15 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.