deltatrials
Completed EARLY_PHASE1 INTERVENTIONAL 2-arm NCT04181606

Age Comparisons of Exercising Muscle O2 Supply in Healthy Adults: Effects of Esmolol Infusion

Sponsor: David N. Proctor, PhD

Conditions Aging
Updated 14 times since 2019 Last updated: Apr 28, 2025 Started: Feb 2, 2022 Primary completion: Apr 25, 2023 Completion: Apr 25, 2023
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT04181606, this EARLY_PHASE1 trial focuses on Aging and remains completed. Sponsored by David N. Proctor, PhD, it has been updated 14 times since 2022, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Dec 2019 – ~Jan 2020 · 31 days · monthly snapshot~Jan 2020 – ~Mar 2020 · 2 months · monthly snapshot~Mar 2020 – ~Jun 2020 · 3 months · monthly snapshot~Jun 2020 – ~Sep 2020 · 3 months · monthly snapshot~Sep 2020 – ~Jan 2021 · 4 months · monthly snapshot~Jan 2021 – ~Mar 2021 · 59 days · monthly snapshot~Mar 2021 – ~Sep 2021 · 6 months · monthly snapshot~Sep 2021 – ~Nov 2021 · 2 months · monthly snapshot~Nov 2021 – ~Dec 2023 · 25 months · monthly snapshot~Dec 2023 – ~Mar 2024 · 3 months · monthly snapshot~Mar 2024 – ~Jul 2024 · 4 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Jun 2025 · 9 months · monthly snapshot~Jun 2025 – present · 13 months · monthly snapshot

Change History

14 versions recorded
  1. Jun 2025 — Present [monthly]

    Completed EARLY_PHASE1

  2. Sep 2024 — Jun 2025 [monthly]

    Completed EARLY_PHASE1

  3. Jul 2024 — Sep 2024 [monthly]

    Completed EARLY_PHASE1

  4. Mar 2024 — Jul 2024 [monthly]

    Completed EARLY_PHASE1

    Status: WithdrawnCompleted

  5. Dec 2023 — Mar 2024 [monthly]

    Withdrawn EARLY_PHASE1

Show 9 earlier versions
  1. Nov 2021 — Dec 2023 [monthly]

    Withdrawn EARLY_PHASE1

    Status: Not Yet RecruitingWithdrawn

  2. Sep 2021 — Nov 2021 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  3. Mar 2021 — Sep 2021 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  4. Jan 2021 — Mar 2021 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  5. Sep 2020 — Jan 2021 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  6. Jun 2020 — Sep 2020 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  7. Mar 2020 — Jun 2020 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  8. Jan 2020 — Mar 2020 [monthly]

    Not Yet Recruiting EARLY_PHASE1

  9. Dec 2019 — Jan 2020 [monthly]

    Not Yet Recruiting EARLY_PHASE1

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • David N. Proctor, PhD
Data source: Penn State University

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