drugset / Trial / NCT03313050

A Trial To Evaluate A Multivalent Pneumococcal Conjugate Vaccine In Healthy Adults 50-85 Years Of Age

NCT03313050

Phase 2 Completed 511 enrolled Pfizer
RandomizedParallel-groupTriple-blindPrevention

Summary

This is a 2-stage, phase 1/2, randomized, active-controlled, observer-blinded study with a 2-arm parallel design in each stage. In Stage 1 healthy adults 50 to 64 years of age with no history of pneumococcal vaccination will be randomized equally to receive either a single intramuscular dose of multivalent pneumococcal conjugate vaccine or a licensed tetanus, diphtheria, acellular pertussis combination vaccine (Tdap) (control group). In Stage 2 healthy adults 65 to 85 years of age previously vaccinated with Prevnar 13 \>=2 months prior to investigational product administration will be randomized equally to receive either a single intramuscular dose of multivalent pneumococcal conjugate vaccine or the licensed 23-valent pneumococcal polysaccharide vaccine (control group).

Timeline

Start
2017-10-12
Primary completion
2019-05-24
Completion
2019-05-24

Drugs

EvaluationDrugModalityDoseRoute
Comparator Pneumovax 23 Vaccine Intramuscular
Comparator Tdap Vaccine Intramuscular
Subject cPCV7 Vaccine Intramuscular