deltatrials
Completed OBSERVATIONAL NCT03280303

Palbociclib in Real World Practice

POLARIS: PALBOCICLIB IN HORMONE RECEPTOR POSITIVE ADVANCED BREAST CANCER: A PROSPECTIVE MULTICENTER NON-INTERVENTIONAL STUDY

Sponsor: Pfizer

Conditions Advanced Breast Cancer Metastatic Breast Cancer
Interventions non-interventional
Updated 37 times since 2017 Last updated: May 20, 2024 Started: Jan 4, 2017 Primary completion: Oct 1, 2022 Completion: Dec 22, 2022
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

A observational or N/A phase clinical study on Advanced Breast Cancer and Metastatic Breast Cancer, this trial is completed. The trial is conducted by Pfizer and has accumulated 37 data snapshots since 2017. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Status Flow

~Oct 2017 – ~Nov 2017 · 31 days · monthly snapshot~Nov 2017 – ~Apr 2018 · 5 months · monthly snapshot~Apr 2018 – ~May 2018 · 30 days · 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 – ~Jan 2019 · 31 days · monthly snapshot~Jan 2019 – ~Feb 2019 · 31 days · monthly snapshot~Feb 2019 – ~Mar 2019 · 28 days · monthly snapshot~Mar 2019 – ~Apr 2019 · 31 days · monthly snapshot~Apr 2019 – ~Jun 2019 · 2 months · monthly snapshot~Jun 2019 – ~Jul 2019 · 30 days · monthly snapshot~Jul 2019 – ~Aug 2019 · 31 days · monthly snapshot~Aug 2019 – ~Sep 2019 · 31 days · monthly snapshot~Sep 2019 – ~Nov 2020 · 14 months · monthly snapshot~Nov 2020 – ~Jan 2021 · 2 months · monthly snapshot~Jan 2021 – ~Feb 2021 · 31 days · monthly snapshot~Feb 2021 – ~Jun 2021 · 4 months · monthly snapshot~Jun 2021 – ~Dec 2021 · 6 months · monthly snapshot~Dec 2021 – ~Jan 2022 · 31 days · monthly snapshot~Jan 2022 – ~Mar 2022 · 59 days · monthly snapshot~Mar 2022 – ~Jul 2022 · 4 months · monthly snapshot~Jul 2022 – ~Sep 2022 · 2 months · monthly snapshot~Sep 2022 – ~Nov 2022 · 2 months · monthly snapshot~Nov 2022 – ~Mar 2023 · 4 months · monthly snapshot~Mar 2023 – ~Apr 2023 · 31 days · monthly snapshot~Apr 2023 – ~May 2023 · 30 days · monthly snapshot~May 2023 – ~Jul 2023 · 2 months · monthly snapshot~Jul 2023 – ~Aug 2023 · 31 days · monthly snapshot~Aug 2023 – ~Jul 2024 · 11 months · monthly snapshot~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshot~Sep 2024 – ~Oct 2024 · 30 days · monthly snapshot~Oct 2024 – ~Sep 2025 · 11 months · monthly snapshot~Sep 2025 – present · 9 months · monthly snapshot

Change History

37 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed

  2. Oct 2024 — Sep 2025 [monthly]

    Completed

  3. Sep 2024 — Oct 2024 [monthly]

    Completed

  4. Jul 2024 — Sep 2024 [monthly]

    Completed

  5. Aug 2023 — Jul 2024 [monthly]

    Completed

▶ Show 32 earlier versions

  1. Jul 2023 — Aug 2023 [monthly]

    Completed

  2. May 2023 — Jul 2023 [monthly]

    Completed

  3. Apr 2023 — May 2023 [monthly]

    Completed

  4. Mar 2023 — Apr 2023 [monthly]

    Completed

    Status: Recruiting → Completed

  5. Nov 2022 — Mar 2023 [monthly]

    Recruiting

  6. Sep 2022 — Nov 2022 [monthly]

    Recruiting

  7. Jul 2022 — Sep 2022 [monthly]

    Recruiting

  8. Mar 2022 — Jul 2022 [monthly]

    Recruiting

  9. Jan 2022 — Mar 2022 [monthly]

    Recruiting

  10. Dec 2021 — Jan 2022 [monthly]

    Recruiting

  11. Jun 2021 — Dec 2021 [monthly]

    Recruiting

  12. Feb 2021 — Jun 2021 [monthly]

    Recruiting

  13. Jan 2021 — Feb 2021 [monthly]

    Recruiting

  14. Nov 2020 — Jan 2021 [monthly]

    Recruiting

  15. Sep 2019 — Nov 2020 [monthly]

    Recruiting

  16. Aug 2019 — Sep 2019 [monthly]

    Recruiting

  17. Jul 2019 — Aug 2019 [monthly]

    Recruiting

  18. Jun 2019 — Jul 2019 [monthly]

    Recruiting

  19. Apr 2019 — Jun 2019 [monthly]

    Recruiting

  20. Mar 2019 — Apr 2019 [monthly]

    Recruiting

  21. Feb 2019 — Mar 2019 [monthly]

    Recruiting

  22. Jan 2019 — Feb 2019 [monthly]

    Recruiting

  23. Dec 2018 — Jan 2019 [monthly]

    Recruiting

  24. Nov 2018 — Dec 2018 [monthly]

    Recruiting

  25. Oct 2018 — Nov 2018 [monthly]

    Recruiting

  26. Aug 2018 — Oct 2018 [monthly]

    Recruiting

  27. Jul 2018 — Aug 2018 [monthly]

    Recruiting

  28. Jun 2018 — Jul 2018 [monthly]

    Recruiting

  29. May 2018 — Jun 2018 [monthly]

    Recruiting

  30. Apr 2018 — May 2018 [monthly]

    Recruiting

    Phase: NA → None

  31. Nov 2017 — Apr 2018 [monthly]

    Recruiting NA

  32. Oct 2017 — Nov 2017 [monthly]

    Recruiting NA

    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:
  • Pfizer
Data source: Pfizer

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

Study Locations

Alabaster, United States , Allen, United States , Allentown, United States , Ames, United States , Arlington, United States , Arlington Heights, United States , Asheville, United States , Auburn, United States , Aurora, United States , Austell, United States and 215 more locations