deltatrials
Completed PHASE4 INTERVENTIONAL NCT00202124

Double Blind Study of Trp01 in Patients With Alzheimer's Disease

Double Blind Medium Term Efficacy Study of Trp01 in Patients With Mild to Moderate Alzheimer's Disease

Sponsor: Queen's University

Interventions Tryptophan
Updated 6 times since 2017 Last updated: Sep 13, 2005 Started: Apr 30, 2001 Completion: Mar 31, 2002
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT00202124, this PHASE4 trial focuses on Alzheimer's Disease and remains completed. Sponsored by Queen's University, it has been updated 6 times since 2001, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~Jan 2017 – ~Jan 2021 · 48 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Apr 2025 · 7 months · monthly snapshotCompleted~Apr 2025 – ~Jun 2025 · 2 months · monthly snapshotCompleted~Jun 2025 – present · 14 months · monthly snapshotCompleted

Change History

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

    Completed PHASE4

  2. Apr 2025 — Jun 2025 [monthly]

    Completed PHASE4

  3. Sep 2024 — Apr 2025 [monthly]

    Completed PHASE4

  4. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE4

  5. Jan 2021 — Jul 2024 [monthly]

    Completed PHASE4

Show 1 earlier version
  1. Jan 2017 — Jan 2021 [monthly]

    Completed PHASE4

    First recorded

Apr 2001

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Queen's University
Data source: Queen's University

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

Study Locations