deltatrials
Completed NA INTERVENTIONAL 2-arm NCT03111407

iAssist vs. Conventional Instrumentation in Total Knee Arthroplasty

Evaluation of Zimmer® iASSIST™ vs. Conventional Instrumentation in Total Knee Arthroplasty: Radiographic, Clinical and Economic Outcomes

Sponsor: Zimmer, GmbH

Conditions Avascular Necrosis Knee Osteoarthritis Post-traumatic; Arthrosis
Interventions total knee arthroplasty
Updated 11 times since 2017 Last updated: Mar 18, 2021 Started: Apr 30, 2014 Primary completion: Dec 31, 2018 Completion: Dec 31, 2018
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT03111407, this NA trial focuses on Avascular Necrosis and Knee Osteoarthritis and remains completed. Sponsored by Zimmer, GmbH, it has been updated 11 times since 2014, reflecting substantial change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

~May 2017 – ~Jul 2018 · 14 months · monthly snapshotRecruiting~Jul 2018 – ~Aug 2019 · 13 months · monthly snapshotActive Not Recruiting~Aug 2019 – ~Jan 2021 · 17 months · monthly snapshotCompleted~Jan 2021 – ~May 2021 · 4 months · monthly snapshotCompleted~May 2021 – ~Dec 2021 · 7 months · monthly snapshotCompleted~Dec 2021 – ~Dec 2022 · 12 months · monthly snapshotCompleted~Dec 2022 – ~Jan 2023 · 31 days · monthly snapshotCompleted~Jan 2023 – ~Jul 2024 · 18 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 10 months · monthly snapshotCompleted

Change History

11 versions recorded

  1. Sep 2025 — Present [monthly]

    Completed NA

  2. Sep 2024 — Sep 2025 [monthly]

    Completed NA

  3. Jul 2024 — Sep 2024 [monthly]

    Completed NA

  4. Jan 2023 — Jul 2024 [monthly]

    Completed NA

  5. Dec 2022 — Jan 2023 [monthly]

    Completed NA

▶ Show 6 earlier versions

  1. Dec 2021 — Dec 2022 [monthly]

    Completed NA

  2. May 2021 — Dec 2021 [monthly]

    Completed NA

  3. Jan 2021 — May 2021 [monthly]

    Completed NA

  4. Aug 2019 — Jan 2021 [monthly]

    Completed NA

    Status: Active Not Recruiting → Completed

  5. Jul 2018 — Aug 2019 [monthly]

    Active Not Recruiting NA

    Status: Recruiting → Active Not Recruiting

  6. May 2017 — Jul 2018 [monthly]

    Recruiting NA

    First recorded

Apr 2014

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