NCT04676854Active, not recruiting
Restoration of Central Vision With the PRIMA System in Patients With Atrophic AMD
Restoration of Central Vision With the PRIMA System in Patients With Atrophic Age-Related Macular Degeneration
Source: ClinicalTrials.gov · Last updated 1 Jun 2026
Brief summary (registry, in English)
The objective of this study is to evaluate the efficacy and safety of the PRIMA System in patients with atrophic AMD. Eligible subjects will be implanted with the PRIMA Implant. The subjects will be assessed with various visual function and functional vision tests at defined timepoints throughout the clinical investigation with the PRIMA System (Implant and Visual Processor).
- Status (registry)
- Active, not recruiting
- Study type
- Interventional
- Enrollment
- 38 (estimated)
- First submitted
- 16 Dec 2020
- Start date
- 24 Nov 2020
- Primary completion date
- 1 Feb 2024
- Lead sponsor
- Science Corporation
- Diseases
- Macular degeneration
- NCT number
- NCT04676854
What you commit to
- Study type: Interventional
- Planned participants: 38
- From 24 Nov 2020 to the primary completion date, 1 Feb 2024
- 21 sites in 6 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Has cataract in the study eye (with LOCS III scale NO, NC, C or P\>1); (these patients will be asked to have cataract surgery performed prior to enrollment; all other patients will get IOL replacement during the PRIMA implantation);
- Has any disease or condition that prevents adequate examination (including OCT) of the study eye including, but not limited to media opacities that cannot be resolved prior to implantation. Note, that this criterion is also important for the function of the implant;
- Has a known sensitivity to the contact materials of the implant (iridium oxide, silicon-carbide and titanium);
- Is receiving anticoagulation therapy that cannot be adapted to allow eye surgery;
- Is participating in another investigational drug or device study that may interfere with the PRIMAvera study;
- Has too high and/or unrealistic expectations (e.g., believes that a benefit is guaranteed or expects normal vision after surgery).
- The following additional exclusion criteria are applicable for French subjects:
Other illness
- Has a history of documented choroidal neovascularization in either eye;
- Has any disease (other than study allowed diseases) or condition that affects retinal function of the study eye or the visual system (e.g., central retinal artery/vein occlusion, end-stage diabetic retinopathy, Proliferative Diabetic Retinopathy (PDR), diabetic macular edema (DME), severe Non-Proliferative Diabetic Retinopathy (NPDR), retinal detachment, infectious or inflammatory retinal disease, severe glaucoma, optic neuropathy, etc.) ;
- Suffers from nystagmus or other ocular motility disorders;
- Has any disease or condition that precludes the understanding or communication of the informed consent, study requirements or test protocols (e.g., deafness, severe multiple sclerosis, amyotrophic lateral sclerosis, severe neuritis, etc.);
- Has epileptic seizures;
- Has a known allergy to anesthetic drugs;
- Has active cancer or a history of intraocular, optic nerve or brain cancer and metastasis;
- Is an immune-suppressed subject (e.g., due to HIV positive diagnosis, etc.);
- Has a history of chronic or recurrent infection or inflammation that would preclude participation in the study;
- Has significant recurrent or chronic inflammations or infections. Specifically, patients with the following disorders are excluded:
- Severe chronic and consuming diseases that frequently associated with infection (e.g. Crohn disease, Whipple's disease);
- Active inflammation in the area of the eye (e.g. herpes of cornea and/or conjunctiva, recurrent blepharoconjunctivitis, hordeolum, chalazion);
- Has a severe psychological disorder;
- Has severe renal, cardiac, hepatic, etc. organ diseases (ASA IV or worse);
Lab values
- Has a corneal endothelial cell count of less than 1000 cells/mm² in the study eye;
Other
- Underwent intra ocular lens implantation in the study eye within the last month ;
- Has a highly myopic study eye (\>26 mm AP);
- Has a highly hyperopic study eye (\<20 mm AP);
- Has no light perception in either eye;
- Has any signs of exudative AMD including exudative AMD with detachment of retinal pigment epithelium in the central visual field of the study eye;
- Has an implanted telescope in one eye;
- Has a black IOL in the study eye;
- Presents with hypotonia in the study eye (\<8 mmHg);
- Presents with hypertonia in the study eye (\>23 mmHg with treatment);
- Is a known carrier of multi-resistant microorganisms;
- Does not have the mental capacity to legally sign the informed consent;
- Has head dimensions that are incompatible with the PRIMA Glasses;
- Has a refraction of study eye higher than + 4 dpt or lower than - 4 dpt for patients with IOL (there is no refraction criteria for phakic patients, since they get an IOL during PRIMA implantation);
- Is a protected person per French law (e.g. is under guardianship, person deprived of their liberty);
- Is not affiliated to a mandatory social security program (health insurance).
Who the study is looking for
- Is 60 years or older at the date of inclusion;
- Has a confirmed diagnosis of geographic atrophy due to AMD in both eyes;
- The study eye has best corrected visual acuity of logMAR 1.2 (20/320) or worse as measured by ETDRS test;
- Has an atrophic patch in the study eye including the fovea of at least the implant size (\>4.5 mm2 and \>2.4 mm in minimum diameter);
- Understands the constraints of the study and accepts to present for all scheduled follow-up visits;
- Patient signed informed consent
Age in the registry: 60 years to - · Sex: All · Does not accept healthy volunteers
Sites (21)
Sites in registry order. Save your city in your profile to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Universitätsklinikum Aachen, Klinik fuer Augenheilkunde Coordinator of this site? Confirm its status | Aachen | Germany | Unknown status |
| Universitäts-Augenklinik Bonn Coordinator of this site? Confirm its status | Bonn | Germany | Unknown status |
| Universitätsklinikum Hamburg-Eppendorf (UKE), Augenklinik Coordinator of this site? Confirm its status | Hamburg | Germany | Unknown status |
| Universitätsklinikum Schleswig-Holstein Klinik für Augenheilkunde Coordinator of this site? Confirm its status | Lübeck | Germany | Unknown status |
| Klinikum Ludwigshafen Augenklinik Coordinator of this site? Confirm its status | Ludwigshafen am Rhein | Germany | Unknown status |
| Augenklinik der Ludwig-Maximilian Universität München Coordinator of this site? Confirm its status | Munich | Germany | Unknown status |
| Universitäts-Augenklinik Münster Coordinator of this site? Confirm its status | Münster | Germany | Unknown status |
| KNAPPSCHAFTSKLINIKUM SAAR GMBH Augenklinik Sulzbach Coordinator of this site? Confirm its status | Sulzbach | Germany | Unknown status |
| Universitätsklinikum Tübingen Coordinator of this site? Confirm its status | Tübingen | Germany | Unknown status |
| Universitätsklinikum Ulm Coordinator of this site? Confirm its status | Ulm | Germany | Unknown status |
| Instituto de Microcirugía Ocular de Barcelona Coordinator of this site? Confirm its status | Barcelona | Spain | Unknown status |
| Hopital Pellegrin Coordinator of this site? Confirm its status | Bordeaux | France | Unknown status |
| Centre hospitalier intercommunal de Créteil - Service Ophtalmologie Coordinator of this site? Confirm its status | Créteil | France | Unknown status |
| Hôpital de la Croix-Rousse CHU de LYON Coordinator of this site? Confirm its status | Lyon | France | Unknown status |
| Centre Monticelli Paradis Coordinator of this site? Confirm its status | Marseille | France | Unknown status |
| CHU de Nantes Coordinator of this site? Confirm its status | Nantes | France | Unknown status |
| Fondation Ophtalmologique A. de Rothschild Coordinator of this site? Confirm its status | Paris | France | Unknown status |
| Hopital des Quinze Vingts Coordinator of this site? Confirm its status | Paris | France | Unknown status |
| Moorfields Eye Hospital NHS Foundation Trust Coordinator of this site? Confirm its status | London | United Kingdom | Unknown status |
| Università di Roma Tor Vergata - Policlinico Tor Vergata (PTV), Dipartimento di Medicina Sperimentale - Oftalmologia Coordinator of this site? Confirm its status | Roma | Italy | Unknown status |
| Rotterdam Eye Hospital Coordinator of this site? Confirm its status | Rotterdam | Netherlands | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.