deltatrials
Completed PHASE3 INTERVENTIONAL 2-arm NCT04684719

Type O Whole Blood and Assessment of Age During Prehospital Resuscitation Trial (TOWAR)

Type O Whole Blood and Assessment of Age During Prehospital Resuscitation (TOWAR) Trial

Sponsor: Jason Sperry

Conditions Hemorrhagic Shock Traumatic Injury
Interventions Standard Care low titer whole blood
Updated 19 times since 2021 Last updated: Feb 11, 2026 Started: Apr 19, 2022 Primary completion: Jul 28, 2025 Completion: Aug 12, 2025
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 Hemorrhagic Shock and Traumatic Injury and is currently completed. Jason Sperry leads this study, which shows 19 recorded versions since 2022 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Jan 2021 – ~Sep 2021 · 8 months · monthly snapshot~Sep 2021 – ~Feb 2022 · 5 months · monthly snapshot~Feb 2022 – ~May 2022 · 3 months · monthly snapshot~May 2022 – ~Sep 2022 · 4 months · monthly snapshot~Sep 2022 – ~Feb 2023 · 5 months · monthly snapshot~Feb 2023 – ~Apr 2023 · 59 days · monthly snapshot~Apr 2023 – ~May 2023 · 30 days · monthly snapshot~May 2023 – ~Jun 2023 · 31 days · monthly snapshot~Jun 2023 – ~Jul 2023 · 30 days · monthly snapshot~Jul 2023 – ~Oct 2023 · 3 months · monthly snapshot~Oct 2023 – ~Apr 2024 · 6 months · monthly snapshot~Apr 2024 – ~Jul 2024 · 3 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Oct 2024 · 30 days · monthly snapshot~Oct 2024 – ~Apr 2025 · 6 months · monthly snapshot~Apr 2025 – ~Aug 2025 · 4 months · monthly snapshot~Aug 2025 – ~Sep 2025 · 31 days · monthly snapshot~Sep 2025 – ~Feb 2026 · 5 months · monthly snapshot~Feb 2026 – present · 5 months · monthly snapshot

Change History

19 versions recorded

  1. Feb 2026 — Present [monthly]

    Completed PHASE3

  2. Sep 2025 — Feb 2026 [monthly]

    Completed PHASE3

    Status: Active Not Recruiting → Completed

  3. Aug 2025 — Sep 2025 [monthly]

    Active Not Recruiting PHASE3

    Status: Recruiting → Active Not Recruiting

  4. Apr 2025 — Aug 2025 [monthly]

    Recruiting PHASE3

  5. Oct 2024 — Apr 2025 [monthly]

    Recruiting PHASE3

▶ Show 14 earlier versions

  1. Sep 2024 — Oct 2024 [monthly]

    Recruiting PHASE3

  2. Jul 2024 — Sep 2024 [monthly]

    Recruiting PHASE3

  3. Apr 2024 — Jul 2024 [monthly]

    Recruiting PHASE3

  4. Oct 2023 — Apr 2024 [monthly]

    Recruiting PHASE3

    Phase: PHASE2 → PHASE3

  5. Jul 2023 — Oct 2023 [monthly]

    Recruiting PHASE2

  6. Jun 2023 — Jul 2023 [monthly]

    Recruiting PHASE2

  7. May 2023 — Jun 2023 [monthly]

    Recruiting PHASE2

  8. Apr 2023 — May 2023 [monthly]

    Recruiting PHASE2

  9. Feb 2023 — Apr 2023 [monthly]

    Recruiting PHASE2

  10. Sep 2022 — Feb 2023 [monthly]

    Recruiting PHASE2

  11. May 2022 — Sep 2022 [monthly]

    Recruiting PHASE2

    Status: Not Yet Recruiting → Recruiting

  12. Feb 2022 — May 2022 [monthly]

    Not Yet Recruiting PHASE2

  13. Sep 2021 — Feb 2022 [monthly]

    Not Yet Recruiting PHASE2

  14. Jan 2021 — Sep 2021 [monthly]

    Not Yet Recruiting PHASE2

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Jason Sperry
  • United States Department of Defense
Data source: University of Pittsburgh

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

Study Locations