CI

At a glance

ClinicalIndex Comparison Record
Phase 2Completed· 835 enrolled
Drug / intervention
24 valent pneumococcal conjugate vaccine +1 morebiological
Likely dose
24 valent pneumococcal conjugate vaccine 0.5 mlfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05266456
NCT05266456Phase 2Completed

A Phase 1/2, Randomized, Observer-Blind, Dose-Finding, Controlled, Parallel-Group, Two-Stage Clinical Study to Evaluate the Safety, Tolerability, and Immunogenicity of a 24-Valent Pneumococcal Conjugate Vaccine (VAX-24) in Healthy Adults Aged 18 to 64 Years

Vaxcyte, Inc.·interventional·Posted Mar 4, 2022·Updated Apr 18, 2024

In Brief

A Phase 2 clinical trial evaluating 24 valent pneumococcal conjugate vaccine and 20 valent pneumococcal conjugate vaccine for Pneumococcal Vaccines. Completed, enrolled 835 participants across 13 sites.

Detailed Summary

The objective of the study is to evaluate the safety and tolerability of a single injection of VAX-24 at 3 dose levels compared to Prevnar 20™ (PCV20) in adults 18 to 49 years of age in Phase 1. The Phase 2 will evaluate the safety, tolerability, and immunogenicity of a single injection of VAX-24 at 3 dose levels compared to PCV20 in adults aged 50 to 64 years of age in Phase 2.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesUnited States
Collaborators--

Timeline

Phase 2CompletedFinished
2023202420252026
First PostedMar 4, 2022
Enrollment StartFeb 22, 2022
Primary CompletionJan 10, 2023
TodayJul 2, 2026
Enrollment to primary: 11 monthsPosted 4.3 years ago

Interventions

24 valent pneumococcal conjugate vaccinebiological

0.5 ml dose of VAX-24 will be administered into the deltoid muscle at Day 1

20 valent pneumococcal conjugate vaccinebiological

0.5 ml dose of PCV20 will be administered into the deltoid muscle at Day 1