deltatrials
Active Not Recruiting OBSERVATIONAL NCT02337244

Zimmer POLAR Persona - TKA (EMEA Study)

Persona Outcomes Led Assessment Research in Total Knee Arthroplasty (POLAR - TKA)

Sponsor: Zimmer, GmbH

Conditions Osteoarthritis Polyarthritis Rheumatoid Arthritis Severe Knee Disability Severe Knee Pain Traumatic Arthritis
Interventions Zimmer Persona Total Knee System
Updated 17 times since 2017 Last updated: Nov 20, 2025 Started: Nov 18, 2013 Primary completion: Dec 31, 2026 Completion: Dec 31, 2026
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 Osteoarthritis and Polyarthritis, this trial is ongoing. The trial is conducted by Zimmer, GmbH and has accumulated 17 data snapshots since 2013. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

~Jan 2017 – ~Feb 2017 · 31 days · monthly snapshot~Feb 2017 – ~Sep 2017 · 7 months · monthly snapshot~Sep 2017 – ~Apr 2018 · 7 months · monthly snapshot~Apr 2018 – ~Jun 2018 · 2 months · monthly snapshot~Jun 2018 – ~Oct 2018 · 4 months · monthly snapshot~Oct 2018 – ~Mar 2020 · 17 months · monthly snapshot~Mar 2020 – ~Sep 2020 · 6 months · monthly snapshot~Sep 2020 – ~Jan 2021 · 4 months · monthly snapshot~Jan 2021 – ~Feb 2021 · 31 days · monthly snapshot~Feb 2021 – ~Mar 2022 · 13 months · monthly snapshot~Mar 2022 – ~Mar 2023 · 12 months · monthly snapshot~Mar 2023 – ~Jul 2024 · 16 months · monthly snapshot~Jul 2024 – ~Aug 2024 · 31 days · monthly snapshot~Aug 2024 – ~Sep 2024 · 31 days · monthly snapshot~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshot~Sep 2025 – ~Dec 2025 · 3 months · monthly snapshot~Dec 2025 – present · 7 months · monthly snapshot

Change History

17 versions recorded

  1. Dec 2025 — Present [monthly]

    Active Not Recruiting

  2. Sep 2025 — Dec 2025 [monthly]

    Active Not Recruiting

  3. Sep 2024 — Sep 2025 [monthly]

    Active Not Recruiting

  4. Aug 2024 — Sep 2024 [monthly]

    Active Not Recruiting

  5. Jul 2024 — Aug 2024 [monthly]

    Active Not Recruiting

▶ Show 12 earlier versions

  1. Mar 2023 — Jul 2024 [monthly]

    Active Not Recruiting

  2. Mar 2022 — Mar 2023 [monthly]

    Active Not Recruiting

    Status: Recruiting → Active Not Recruiting

  3. Feb 2021 — Mar 2022 [monthly]

    Recruiting

  4. Jan 2021 — Feb 2021 [monthly]

    Recruiting

  5. Sep 2020 — Jan 2021 [monthly]

    Recruiting

  6. Mar 2020 — Sep 2020 [monthly]

    Recruiting

  7. Oct 2018 — Mar 2020 [monthly]

    Recruiting

  8. Jun 2018 — Oct 2018 [monthly]

    Recruiting

  9. Apr 2018 — Jun 2018 [monthly]

    Recruiting

    Phase: NA → None

  10. Sep 2017 — Apr 2018 [monthly]

    Recruiting NA

  11. Feb 2017 — Sep 2017 [monthly]

    Recruiting NA

  12. Jan 2017 — Feb 2017 [monthly]

    Recruiting NA

    First recorded

Nov 2013

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Zimmer, GmbH
Data source: Zimmer Biomet

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

Study Locations

Braunschweig, Germany , Clermont-Ferrand, France , Clydebank, United Kingdom , Delft, Netherlands , Harrogate, United Kingdom , Heidelberg, Germany , Leeds, United Kingdom , Montpellier, France , Newcastle, United Kingdom , Sabadell, Spain and 2 more locations