deltatrials
Terminated OBSERVATIONAL NCT04037631

Compare Visual Outcomes Using a New Diagnostic Device

Prospective Clinical Study to Compare Visual Performance Obtained With a New Diagnostic Device

Sponsor: Carl Zeiss Meditec AG

Conditions Presbyopia
Interventions Diagnostic device
Updated 6 times since 2019 Last updated: Jan 26, 2021 Started: Jul 20, 2017 Primary completion: May 1, 2020 Completion: May 1, 2020
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Terminated

recruitment

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This observational or N/A phase trial investigates Presbyopia and is currently terminated or withdrawn. Carl Zeiss Meditec AG leads this study, which shows 6 recorded versions since 2017 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Aug 2019 – ~Jan 2020 · 5 months · monthly snapshotRecruiting~Jan 2020 – ~Jan 2021 · 12 months · monthly snapshotRecruiting~Jan 2021 – ~Feb 2021 · 31 days · monthly snapshotRecruiting~Feb 2021 – ~Jul 2024 · 41 months · monthly snapshotTerminated~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotTerminated~Sep 2024 – present · 22 months · monthly snapshotTerminated

Change History

6 versions recorded
  1. Sep 2024 — Present [monthly]

    Terminated

  2. Jul 2024 — Sep 2024 [monthly]

    Terminated

  3. Feb 2021 — Jul 2024 [monthly]

    Terminated

    Status: RecruitingTerminated

  4. Jan 2021 — Feb 2021 [monthly]

    Recruiting

  5. Jan 2020 — Jan 2021 [monthly]

    Recruiting

Show 1 earlier version
  1. Aug 2019 — Jan 2020 [monthly]

    Recruiting

    First recorded

Jul 2017

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Carl Zeiss Meditec AG
Data source: Carl Zeiss Meditec AG

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

Study Locations