deltatrials
Terminated NA INTERVENTIONAL 3-arm NCT03808961

Low Dose Niacin (Vitamin B3) for Parkinson's Disease (NAPS)

NAPS: Niacin for Parkinson's Disease

Sponsor: VA Office of Research and Development

Conditions Parkinson's Disease
Interventions Niacin Niacinamide Placebo
Updated 14 times since 2019 Last updated: Feb 10, 2025 Started: Jan 1, 2020 Primary completion: Nov 1, 2023 Completion: Nov 1, 2023
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Terminated

Not enough recruitment

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Listed as NCT03808961, this NA trial focuses on Parkinson's Disease and remains terminated or withdrawn. Sponsored by VA Office of Research and Development, it has been updated 14 times since 2020, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Feb 2019 – ~May 2019 · 3 months · monthly snapshot~May 2019 – ~Jun 2019 · 31 days · monthly snapshot~Jun 2019 – ~Jan 2020 · 7 months · monthly snapshot~Jan 2020 – ~Feb 2020 · 31 days · monthly snapshot~Feb 2020 – ~Jul 2020 · 5 months · monthly snapshot~Jul 2020 – ~Nov 2020 · 4 months · monthly snapshot~Nov 2020 – ~Jan 2021 · 2 months · monthly snapshot~Jan 2021 – ~May 2021 · 4 months · monthly snapshot~May 2021 – ~Apr 2022 · 11 months · monthly snapshot~Apr 2022 – ~Feb 2024 · 22 months · monthly snapshot~Feb 2024 – ~Jul 2024 · 5 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Apr 2025 · 7 months · monthly snapshot~Apr 2025 – present · 15 months · monthly snapshot

Change History

14 versions recorded

  1. Apr 2025 — Present [monthly]

    Terminated NA

  2. Sep 2024 — Apr 2025 [monthly]

    Terminated NA

  3. Jul 2024 — Sep 2024 [monthly]

    Terminated NA

  4. Feb 2024 — Jul 2024 [monthly]

    Terminated NA

    Status: Active Not Recruiting → Terminated

  5. Apr 2022 — Feb 2024 [monthly]

    Active Not Recruiting NA

    Status: Recruiting → Active Not Recruiting

▶ Show 9 earlier versions

  1. May 2021 — Apr 2022 [monthly]

    Recruiting NA

  2. Jan 2021 — May 2021 [monthly]

    Recruiting NA

  3. Nov 2020 — Jan 2021 [monthly]

    Recruiting NA

    Status: Active Not Recruiting → Recruiting

  4. Jul 2020 — Nov 2020 [monthly]

    Active Not Recruiting NA

    Status: Recruiting → Active Not Recruiting

  5. Feb 2020 — Jul 2020 [monthly]

    Recruiting NA

    Status: Not Yet Recruiting → Recruiting

  6. Jan 2020 — Feb 2020 [monthly]

    Not Yet Recruiting NA

  7. Jun 2019 — Jan 2020 [monthly]

    Not Yet Recruiting NA

  8. May 2019 — Jun 2019 [monthly]

    Not Yet Recruiting NA

  9. Feb 2019 — May 2019 [monthly]

    Not Yet Recruiting NA

    First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • VA Office of Research and Development
Data source: VA Office of Research and Development

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

Study Locations