deltatrials
Completed PHASE3 INTERVENTIONAL 3-arm NCT04887948

Safety and Immunogenicity Study of 20vPnC When Coadministered With a Booster Dose of BNT162b2

A PHASE 3, RANDOMIZED, DOUBLE BLIND TRIAL TO DESCRIBE THE SAFETY AND IMMUNOGENICITY OF 20 VALENT PNEUMOCOCCAL CONJUGATE VACCINE WHEN COADMINISTERED WITH A BOOSTER DOSE OF BNT162b2 IN ADULTS 65 YEARS OF AGE AND OLDER

Sponsor: Pfizer

Updated 8 times since 2021 Last updated: Nov 17, 2022 Started: May 20, 2021 Primary completion: Dec 8, 2021 Completion: Dec 8, 2021
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE3 trial investigates COVID-19 and Pneumococcal Disease and is currently completed. Pfizer leads this study, which shows 8 recorded versions since 2021 — indicating limited longitudinal coverage. Longitudinal tracking of infectious disease trials helps identify durability of treatment effects.

Status Flow

~Jun 2021 – ~Sep 2021 · 3 months · monthly snapshot~Sep 2021 – ~Feb 2022 · 5 months · monthly snapshotActive Not Recruiting~Feb 2022 – ~Apr 2022 · 59 days · monthly snapshot~Apr 2022 – ~Jan 2023 · 9 months · monthly snapshotCompleted~Jan 2023 – ~Jul 2024 · 18 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 11 months · monthly snapshotCompleted

Change History

8 versions recorded
  1. Sep 2025 — Present [monthly]

    Completed PHASE3

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE3

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE3

  4. Jan 2023 — Jul 2024 [monthly]

    Completed PHASE3

  5. Apr 2022 — Jan 2023 [monthly]

    Completed PHASE3

Show 3 earlier versions
  1. Feb 2022 — Apr 2022 [monthly]

    Completed PHASE3

    Status: Active Not RecruitingCompleted

  2. Sep 2021 — Feb 2022 [monthly]

    Active Not Recruiting PHASE3

    Status: Not Yet RecruitingActive Not Recruiting

  3. Jun 2021 — Sep 2021 [monthly]

    Not Yet Recruiting PHASE3

    First recorded

May 2021

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Pfizer
Data source: Pfizer

For direct contact, visit the study record on ClinicalTrials.gov .