deltatrials
Completed PHASE3 INTERVENTIONAL 4-arm NCT03239496

A Study to Evaluate Immunogenicity of Intramuscular Full-Dose and Intradermal Fractional Dose of IPV

A Phase 3, Open-label, Multicenter Randomized Trial to Evaluate Humoral Immunogenicity of Various Schedules of Intramuscular Full-Dose and Intradermal Fractional Dose of Inactivated Polio Vaccine in Latin American Infants

Sponsor: Bill and Melinda Gates Foundation

Conditions Poliomyelitis
Interventions IPV f-IPV
Updated 14 times since 2017 Last updated: Jul 10, 2023 Started: Oct 23, 2017 Primary completion: Nov 13, 2018 Completion: Nov 13, 2018
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 Poliomyelitis and is currently completed. Bill and Melinda Gates Foundation leads this study, which shows 14 recorded versions since 2017 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Sep 2017 – ~Dec 2017 · 3 months · monthly snapshot~Dec 2017 – ~Apr 2018 · 4 months · monthly snapshot~Apr 2018 – ~Jun 2018 · 2 months · monthly snapshot~Jun 2018 – ~Jan 2019 · 7 months · monthly snapshot~Jan 2019 – ~Sep 2020 · 20 months · monthly snapshot~Sep 2020 – ~Jan 2021 · 4 months · monthly snapshot~Jan 2021 – ~Dec 2022 · 23 months · monthly snapshot~Dec 2022 – ~Jan 2023 · 31 days · monthly snapshot~Jan 2023 – ~May 2023 · 4 months · monthly snapshot~May 2023 – ~Aug 2023 · 3 months · monthly snapshot~Aug 2023 – ~Jul 2024 · 11 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – present · 12 months · monthly snapshot

Change History

14 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. Aug 2023 — Jul 2024 [monthly]

    Completed PHASE3

  5. May 2023 — Aug 2023 [monthly]

    Completed PHASE3

▶ Show 9 earlier versions

  1. Jan 2023 — May 2023 [monthly]

    Completed PHASE3

  2. Dec 2022 — Jan 2023 [monthly]

    Completed PHASE3

  3. Jan 2021 — Dec 2022 [monthly]

    Completed PHASE3

  4. Sep 2020 — Jan 2021 [monthly]

    Completed PHASE3

  5. Jan 2019 — Sep 2020 [monthly]

    Completed PHASE3

    Status: Active Not Recruiting → Completed

  6. Jun 2018 — Jan 2019 [monthly]

    Active Not Recruiting PHASE3

  7. Apr 2018 — Jun 2018 [monthly]

    Active Not Recruiting PHASE3

    Status: Recruiting → Active Not Recruiting

  8. Dec 2017 — Apr 2018 [monthly]

    Recruiting PHASE3

    Status: Not Yet Recruiting → Recruiting

  9. Sep 2017 — Dec 2017 [monthly]

    Not Yet Recruiting PHASE3

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Bill and Melinda Gates Foundation
  • Fidec Corporation
Data source: Fidec Corporation

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

Study Locations