deltatrials
Completed NA INTERVENTIONAL NCT01024803

Safety and Efficacy of Subretinal Implants for Partial Restoration of Vision in Blind Patients

Safety and Efficacy of Subretinal Implants for Partial Restoration of Vision in Blind Patients: A Prospective Multicenter Clinical Study Based on Randomized Intra-individual Implant Activation in Patients With Degenerative Retinal Diseases

Sponsor: Retina Implant AG

Conditions Retinal Degeneration Retinitis Pigmentosa
Interventions Device name: Retina Implant model Alpha. Surgical implantation of medical device into eye
Updated 9 times since 2017 Last updated: Sep 3, 2018 Started: Dec 31, 2009 Primary completion: Apr 30, 2017 Completion: Apr 30, 2018
This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This NA trial investigates Retinal Degeneration and Retinitis Pigmentosa and is currently completed. Retina Implant AG leads this study, which shows 9 recorded versions since 2009 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

~Jan 2017 – ~Jun 2017 · 5 months · monthly snapshotActive Not Recruiting~Jun 2017 – ~Oct 2017 · 4 months · monthly snapshotCompleted~Oct 2017 – ~Jun 2018 · 8 months · monthly snapshotActive Not Recruiting~Jun 2018 – ~Oct 2018 · 4 months · monthly snapshotActive Not Recruiting~Oct 2018 – ~Jan 2021 · 27 months · monthly snapshotCompleted~Jan 2021 – ~Jul 2024 · 42 months · monthly snapshotCompleted~Jul 2024 – ~Sep 2024 · 2 months · monthly snapshotCompleted~Sep 2024 – ~Sep 2025 · 12 months · monthly snapshotCompleted~Sep 2025 – present · 8 months · monthly snapshotCompleted

Change History

9 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 2021 — Jul 2024 [monthly]

    Completed NA

  5. Oct 2018 — Jan 2021 [monthly]

    Completed NA

    Status: Active Not Recruiting → Completed

▶ Show 4 earlier versions

  1. Jun 2018 — Oct 2018 [monthly]

    Active Not Recruiting NA

  2. Oct 2017 — Jun 2018 [monthly]

    Active Not Recruiting NA

    Status: Completed → Active Not Recruiting

  3. Jun 2017 — Oct 2017 [monthly]

    Completed NA

    Status: Active Not Recruiting → Completed

  4. Jan 2017 — Jun 2017 [monthly]

    Active Not Recruiting NA

    First recorded

Dec 2009

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:
  • Retina Implant AG
Data source: Retina Implant AG

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

Study Locations