deltatrials
Terminated PHASE3 INTERVENTIONAL 1-arm NCT03121586

Extension Study of Pimavanserin for the Adjunctive Treatment of Schizophrenia

A 52-Week, Open-Label, Extension Study of Pimavanserin for the Adjunctive Treatment of Schizophrenia

Sponsor: ACADIA Pharmaceuticals Inc.

Conditions Schizophrenia
Interventions Pimavanserin
Updated 27 times since 2017 Last updated: Aug 6, 2025 Started: Jan 31, 2017 Primary completion: Apr 30, 2024 Completion: May 30, 2024
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Terminated

This trial was terminated. No reason was provided.

Other terminated trials from ACADIA Pharmaceuticals Inc.

More terminations from ACADIA Pharmaceuticals Inc.

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Browse all Schizophrenia trials

Listed as NCT03121586, this PHASE3 trial focuses on Schizophrenia and remains terminated or withdrawn. Sponsored by ACADIA Pharmaceuticals Inc., it has been updated 27 times since 2017, reflecting substantial change activity. Mental health research at this phase helps define safety and dosing parameters for future study.

Status Flow

~Jun 2017 – ~Jan 2018 · 7 months · monthly snapshot~Jan 2018 – ~May 2018 · 4 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 – ~Jan 2019 · 2 months · monthly snapshot~Jan 2019 – ~Feb 2019 · 31 days · monthly snapshot~Feb 2019 – ~Mar 2019 · 28 days · monthly snapshot~Mar 2019 – ~May 2019 · 2 months · monthly snapshot~May 2019 – ~Aug 2019 · 3 months · monthly snapshot~Aug 2019 – ~Oct 2019 · 2 months · monthly snapshot~Oct 2019 – ~Dec 2019 · 2 months · monthly snapshot~Dec 2019 – ~Jan 2021 · 13 months · monthly snapshot~Jan 2021 – ~Nov 2021 · 10 months · monthly snapshot~Nov 2021 – ~Sep 2022 · 10 months · monthly snapshot~Sep 2022 – ~Jan 2023 · 4 months · monthly snapshot~Jan 2023 – ~Apr 2023 · 3 months · monthly snapshot~Apr 2023 – ~May 2023 · 30 days · monthly snapshot~May 2023 – ~Jul 2023 · 2 months · monthly snapshot~Jul 2023 – ~Sep 2023 · 2 months · monthly snapshot~Sep 2023 – ~May 2024 · 8 months · monthly snapshot~May 2024 – ~Jul 2024 · 2 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – present · 12 months · monthly snapshot

Change History

27 versions recorded

  1. Sep 2025 — Present [monthly]

    Terminated PHASE3

  2. Sep 2024 — Sep 2025 [monthly]

    Terminated PHASE3

    Status: Active Not Recruiting → Terminated

  3. Jul 2024 — Sep 2024 [monthly]

    Active Not Recruiting PHASE3

  4. May 2024 — Jul 2024 [monthly]

    Active Not Recruiting PHASE3

    Status: Recruiting → Active Not Recruiting

  5. Sep 2023 — May 2024 [monthly]

    Recruiting PHASE3

▶ Show 22 earlier versions

  1. Jul 2023 — Sep 2023 [monthly]

    Recruiting PHASE3

  2. May 2023 — Jul 2023 [monthly]

    Recruiting PHASE3

  3. Apr 2023 — May 2023 [monthly]

    Recruiting PHASE3

  4. Jan 2023 — Apr 2023 [monthly]

    Recruiting PHASE3

  5. Sep 2022 — Jan 2023 [monthly]

    Recruiting PHASE3

  6. Nov 2021 — Sep 2022 [monthly]

    Recruiting PHASE3

  7. Jan 2021 — Nov 2021 [monthly]

    Recruiting PHASE3

  8. Dec 2019 — Jan 2021 [monthly]

    Recruiting PHASE3

  9. Oct 2019 — Dec 2019 [monthly]

    Recruiting PHASE3

  10. Aug 2019 — Oct 2019 [monthly]

    Recruiting PHASE3

  11. May 2019 — Aug 2019 [monthly]

    Recruiting PHASE3

  12. Mar 2019 — May 2019 [monthly]

    Recruiting PHASE3

  13. Feb 2019 — Mar 2019 [monthly]

    Recruiting PHASE3

  14. Jan 2019 — Feb 2019 [monthly]

    Recruiting PHASE3

  15. Nov 2018 — Jan 2019 [monthly]

    Recruiting PHASE3

  16. Oct 2018 — Nov 2018 [monthly]

    Recruiting PHASE3

  17. Aug 2018 — Oct 2018 [monthly]

    Recruiting PHASE3

  18. Jul 2018 — Aug 2018 [monthly]

    Recruiting PHASE3

  19. Jun 2018 — Jul 2018 [monthly]

    Recruiting PHASE3

  20. May 2018 — Jun 2018 [monthly]

    Recruiting PHASE3

  21. Jan 2018 — May 2018 [monthly]

    Recruiting PHASE3

  22. Jun 2017 — Jan 2018 [monthly]

    Recruiting PHASE3

    First recorded

Jan 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 .

Study Locations

Albuquerque, United States , Arkhangelsk, Russia , Atlanta, United States , Barcelona, Spain , Belgrade, Serbia , Bellflower, United States , Berlin, United States , Bialystok, Poland , Budapest, Hungary , Buenos Aires, Argentina and 90 more locations