deltatrials
Completed PHASE3 INTERVENTIONAL 2-arm NCT03325556

Relapse Prevention Study of Pimavanserin in Dementia-related Psychosis

A Double-blind, Placebo-controlled, Relapse Prevention Study of Pimavanserin for the Treatment of Hallucinations and Delusions Associated With Dementia-related Psychosis

Sponsor: ACADIA Pharmaceuticals Inc.

Updated 24 times since 2017 Last updated: May 27, 2021 Started: Sep 27, 2017 Primary completion: Jul 31, 2019 Completion: Oct 30, 2019
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT03325556, this PHASE3 trial focuses on Dementia-related Psychosis and remains completed. Sponsored by ACADIA Pharmaceuticals Inc., it has been updated 24 times since 2017, reflecting substantial change activity. Mental health research at this phase helps define safety and dosing parameters for future study.

Status Flow

~Nov 2017 – ~Dec 2017 · 30 days · monthly snapshot~Dec 2017 – ~Mar 2018 · 3 months · monthly snapshot~Mar 2018 – ~May 2018 · 2 months · monthly snapshot~May 2018 – ~Jun 2018 · 31 days · monthly snapshot~Jun 2018 – ~Jul 2018 · 30 days · monthly snapshot~Jul 2018 – ~Aug 2018 · 31 days · monthly snapshot~Aug 2018 – ~Oct 2018 · 2 months · monthly snapshot~Oct 2018 – ~Nov 2018 · 31 days · monthly snapshot~Nov 2018 – ~Dec 2018 · 30 days · monthly snapshot~Dec 2018 – ~Feb 2019 · 2 months · monthly snapshot~Feb 2019 – ~Mar 2019 · 28 days · monthly snapshot~Mar 2019 – ~May 2019 · 2 months · monthly snapshot~May 2019 – ~Jun 2019 · 31 days · monthly snapshot~Jun 2019 – ~Aug 2019 · 2 months · monthly snapshot~Aug 2019 – ~Sep 2019 · 31 days · monthly snapshot~Sep 2019 – ~Nov 2019 · 2 months · monthly snapshot~Nov 2019 – ~Dec 2019 · 30 days · monthly snapshot~Dec 2019 – ~May 2020 · 5 months · monthly snapshot~May 2020 – ~Jan 2021 · 8 months · monthly snapshot~Jan 2021 – ~Sep 2021 · 8 months · monthly snapshot~Sep 2021 – ~Jul 2024 · 34 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – present · 10 months · monthly snapshot

Change History

24 versions recorded
  1. Sep 2025 — Present [monthly]

    Completed PHASE3

  2. Sep 2024 — Sep 2025 [monthly]

    Completed PHASE3

  3. Jul 2024 — Sep 2024 [monthly]

    Completed PHASE3

  4. Sep 2021 — Jul 2024 [monthly]

    Completed PHASE3

  5. Jan 2021 — Sep 2021 [monthly]

    Completed PHASE3

Show 19 earlier versions
  1. May 2020 — Jan 2021 [monthly]

    Completed PHASE3

  2. Dec 2019 — May 2020 [monthly]

    Completed PHASE3

    Status: Active Not RecruitingCompleted

  3. Nov 2019 — Dec 2019 [monthly]

    Active Not Recruiting PHASE3

    Status: RecruitingActive Not Recruiting

  4. Sep 2019 — Nov 2019 [monthly]

    Recruiting PHASE3

  5. Aug 2019 — Sep 2019 [monthly]

    Recruiting PHASE3

  6. Jun 2019 — Aug 2019 [monthly]

    Recruiting PHASE3

  7. May 2019 — Jun 2019 [monthly]

    Recruiting PHASE3

  8. Mar 2019 — May 2019 [monthly]

    Recruiting PHASE3

  9. Feb 2019 — Mar 2019 [monthly]

    Recruiting PHASE3

  10. Dec 2018 — Feb 2019 [monthly]

    Recruiting PHASE3

  11. Nov 2018 — Dec 2018 [monthly]

    Recruiting PHASE3

  12. Oct 2018 — Nov 2018 [monthly]

    Recruiting PHASE3

  13. Aug 2018 — Oct 2018 [monthly]

    Recruiting PHASE3

  14. Jul 2018 — Aug 2018 [monthly]

    Recruiting PHASE3

  15. Jun 2018 — Jul 2018 [monthly]

    Recruiting PHASE3

  16. May 2018 — Jun 2018 [monthly]

    Recruiting PHASE3

  17. Mar 2018 — May 2018 [monthly]

    Recruiting PHASE3

  18. Dec 2017 — Mar 2018 [monthly]

    Recruiting PHASE3

  19. Nov 2017 — Dec 2017 [monthly]

    Recruiting PHASE3

    First recorded

Sep 2017

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • ACADIA Pharmaceuticals Inc.
Data source: ACADIA Pharmaceuticals Inc.

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