deltatrials
Recruiting PHASE2 INTERVENTIONAL 3-arm NCT02232191

Immunologic Response to Pneumococcal Polysaccharide Vaccine in Splenic Injury Patients

Sponsor: University of California, Davis

Conditions Asplenia
Interventions Pneumovax-23
Updated 15 times since 2017 Last updated: Dec 3, 2025 Started: Dec 31, 2014 Primary completion: Jul 31, 2026 Completion: Jul 31, 2026
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT02232191, this PHASE2 trial focuses on Asplenia and remains actively recruiting participants. Sponsored by University of California, Davis, it has been updated 15 times since 2014, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshot~Feb 2017 – ~Jul 2017 · 5 months · monthly snapshot~Jul 2017 – ~Jun 2018 · 11 months · monthly snapshot~Jun 2018 – ~Nov 2018 · 5 months · monthly snapshot~Nov 2018 – ~Nov 2019 · 12 months · monthly snapshot~Nov 2019 – ~Dec 2020 · 13 months · monthly snapshot~Dec 2020 – ~Jan 2021 · 31 days · monthly snapshot~Jan 2021 – ~Jan 2022 · 12 months · monthly snapshot~Jan 2022 – ~Mar 2022 · 59 days · monthly snapshot~Mar 2022 – ~Jul 2023 · 16 months · monthly snapshot~Jul 2023 – ~Jul 2024 · 12 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Dec 2024 · 3 months · monthly snapshot~Dec 2024 – ~Jan 2026 · 13 months · monthly snapshot~Jan 2026 – present · 8 months · monthly snapshot

Change History

15 versions recorded

  1. Jan 2026 — Present [monthly]

    Recruiting PHASE2

  2. Dec 2024 — Jan 2026 [monthly]

    Recruiting PHASE2

  3. Sep 2024 — Dec 2024 [monthly]

    Recruiting PHASE2

  4. Jul 2024 — Sep 2024 [monthly]

    Recruiting PHASE2

  5. Jul 2023 — Jul 2024 [monthly]

    Recruiting PHASE2

▶ Show 10 earlier versions

  1. Mar 2022 — Jul 2023 [monthly]

    Recruiting PHASE2

  2. Jan 2022 — Mar 2022 [monthly]

    Recruiting PHASE2

  3. Jan 2021 — Jan 2022 [monthly]

    Recruiting PHASE2

  4. Dec 2020 — Jan 2021 [monthly]

    Recruiting PHASE2

  5. Nov 2019 — Dec 2020 [monthly]

    Recruiting PHASE2

  6. Nov 2018 — Nov 2019 [monthly]

    Recruiting PHASE2

    Phase: NA → PHASE2

  7. Jun 2018 — Nov 2018 [monthly]

    Recruiting NA

  8. Jul 2017 — Jun 2018 [monthly]

    Recruiting NA

  9. Feb 2017 — Jul 2017 [monthly]

    Recruiting NA

  10. Jan 2017 — Feb 2017 [monthly]

    Recruiting NA

    First recorded

Dec 2014

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • University of California, Davis
Data source: University of California, Davis

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

Study Locations