Clinical trial Recruiting at 1 site Interventional Ages 18 to 70

Evaluating a new treatment for retinitis pigmentosa

Official title: Pilot Study of AuTNA I (Au Nanoparticle-decorated TiO2 Nanowire Arrays, Retinal Prothesis) -a Safety and Efficacy Evaluation.

Run by Eye & ENT Hospital of Fudan University · NCT05853107 · Data updated 2026-11-12

This study is testing a new eye implant to see if it can help improve vision in people with retinitis pigmentosa.

Quick facts

Study typeInterventional
Ages18 Years to 70 Years
SexAll
Enrollment7 (estimated)
SponsorEye & ENT Hospital of Fudan University
Academic / other
Locations1 site (Shanghai, Shanghai Municipality)
StatusRecruiting
StartedMay 12, 2023
Main results expectedFebruary 28, 2026
Study endsFebruary 28, 2026
Registry record updatedSeptember 19, 2025
Trial IDNCT05853107 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18-65 with a clinical diagnosis of retinitis pigmentosa and specific retinal characteristics.

Probably not a fit

Patients with conditions that could interfere with the implant's function, such as open ocular trauma or severe uveitis, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to assess the safety and efficacy of AuTNA I, a nanoparticle-decorated TiO2 Nanowire Array, for subretinal implantation in patients diagnosed with retinitis pigmentosa. Participants aged 18-65 will receive the implant in one eye, and their visual acuity changes, along with any potential side effects, will be closely monitored. The study focuses on patients with specific retinal conditions and intact inner retinal structures to ensure the best outcomes.

Why it matters

Potential benefit: If successful, this treatment could significantly improve vision for patients suffering from retinitis pigmentosa.

How similar studies have gone: While this approach is innovative, similar studies have shown promise in the field of retinal implants, suggesting potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Age: 18-70 years of age.
2. Clinically diagnosed as retinitis pigmentosa (one of the following two conditions):

   ① typical triadfundus manifestations: "osteoblastic" pigmentation of retina, arterial stenosis, and waxy atrophy of optic disc.

   ② typical fundus changes with both a and b, with or without c:
   1. poor night vision before vision loss;
   2. standard 5 ERG examination showing more severely damaged scotopic response than photopic, even non response
   3. impaired peripheral visual field in perimetry (when the patient's vision permits).
3. No or suspicious light perception in the eye for AuTNA I implantation.
4. Intact inner retinal structure on OCT. No macular retinal or choroidal neovascularization.
5. Voluntary to participate in the study and sign the informed consent.

Exclusion Criteria:

1. Entities that might interfere with the functioning of AuTNA I, e.g. open ocular trauma, retinal detachment, glaucoma, severe uveitis, etc.
2. Uncontrolled systemic diseases including hypertension (systolic blood pressure ≥160mmHg and/or diastolic blood pressure ≥100mmHg), diabetes (blood glucose ≥8.0mmol/L with medication);
3. Allergic constitution.
4. Entities that might prevent the observation of the fundus, e.g. corneal opacity, etc.
5. Ocular disease not suitable for undertaking the implantation surgery, e.g. corneal ulcers, etc.
6. Habits of rubbing the eyes.
7. Compromised liver function (ALT and AST 1.5 times over the normal limits), renal function (Cr 1.5 times over the normal limits), coagulation function (APTT 1.5 times over the normal limits).
8. Pregnancy, lactating or planning to be pregnant within 6 months.
9. History of epilepsy or serious psychiatric diseases.
10. Other local or systemic diseases that may affect the vision.
11. Participation in other clinical trials within 1 month before this study.
12. Other conditions that the researcher found imporper to be included into this study.

Where it's running

  • Chunhui Jiang
    Shanghai, Shanghai Municipality, China
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.