Don't get left behind! The modernized is coming. Check it out now.
Say goodbye to!
The new site is coming soon - go to the modernized
Working… Menu

Restoration of Central Vision With the PRIMA System in Patients With Atrophic AMD (PRIMAvera)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT04676854
Recruitment Status : Active, not recruiting
First Posted : December 21, 2020
Last Update Posted : February 9, 2023
Information provided by (Responsible Party):
Pixium Vision SA

Brief Summary:
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).

Condition or disease Intervention/treatment Phase
Geographic Atrophy Device: PRIMA Bionic Vision System Not Applicable

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 38 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Restoration of Central Vision With the PRIMA System in Patients With Atrophic Age-Related Macular Degeneration
Actual Study Start Date : November 24, 2020
Estimated Primary Completion Date : February 2024
Estimated Study Completion Date : February 2026

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: PRIMA Bionic Vision System Device: PRIMA Bionic Vision System
Implantation of PRIMA, Vision training, follow up

Primary Outcome Measures :
  1. Proportion of subjects with meaningful improvement of visual acuity [ Time Frame: 12 months ]
    Proportion of subjects with an improvement of visual acuity of logMAR 0.2 or more from baseline to 12 months

  2. Serious Adverse Events [ Time Frame: 12 months ]
    Number and severity of device and procedure related serious adverse events at 12 months follow-up

Secondary Outcome Measures :
  1. Proportion of subjects with meaningful improvement of visual acuity [ Time Frame: 6, 24, 36 months ]
    Proportion of subjects with an improvement of visual acuity of logMAR 0.2 or more at 6, 24 and 36 months compared to baseline

  2. Improvement of visual acuity [ Time Frame: 6, 12, 24, 36 months ]
    Mean improvement of visual acuity at 6, 12, 24 and 36 months compared to baseline

  3. Quality of life measured by IVI [ Time Frame: 6, 12, 24, 36 months ]
    IVI-Impact of Vision Impairment questionnaire (quality of life based on patient reported outcome of functional vision, participation in vision-related daily living activities and emotional well-being) at 6, 12, 24 and 36 months

  4. Central visual perception [ Time Frame: 12 months ]
    Central visual perception with PRIMA at 12 months compared to central visual perception at baseline

  5. Adverse Events [ Time Frame: 6, 12, 24, 36 months ]
    Number and severity of procedure and device related adverse events at 6, 12, 24 and 36 months follow-up

  6. Change of natural visual acuity [ Time Frame: 6, 12, 24, 36 months ]
    Change of natural visual acuity without the PRIMA Glasses

  7. Proportion of compliant implantations [ Time Frame: 4 weeks after implantation ]
    Number of subjects with PRIMA implant placed according protocol

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   60 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 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

Exclusion Criteria:

  • 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);
  • 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 a history of documented choroidal neovascularization 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;
  • 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.) ;
  • 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 corneal endothelial cell count of less than 1000 cells/mm² in the study eye;
  • 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 sensitivity to the contact materials of the implant (iridium oxide, silicon-carbide and titanium);
  • Has a known allergy to anesthetic drugs;
  • Presents with hypotonia in the study eye (<8 mmHg);
  • Presents with hypertonia in the study eye (>23 mmHg with treatment);
  • 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.);
  • Is a known carrier of multi-resistant microorganisms;
  • 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 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;
  • Does not have the mental capacity to legally sign the informed consent;
  • Has severe renal, cardiac, hepatic, etc. organ diseases (ASA IV or worse);
  • 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);
  • 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:

  • 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).

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04676854

Show Show 21 study locations
Sponsors and Collaborators
Pixium Vision SA
Additional Information:
Layout table for additonal information
Responsible Party: Pixium Vision SA Identifier: NCT04676854    
Other Study ID Numbers: CIP-PV-M
First Posted: December 21, 2020    Key Record Dates
Last Update Posted: February 9, 2023
Last Verified: February 2023
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
Layout table for MeSH terms
Geographic Atrophy
Macular Degeneration
Retinal Degeneration
Retinal Diseases
Eye Diseases