ClinicalTrials.gg
Not yet recruitingNCT07705568Updated Jul 16, 2026

An Open-label Safety, Tolerability and Exploratory Efficacy Clinical Trial of PST-611 in Geographic Atrophy

A Phase 2 interventional study of PST-611 in Geographic Atrophy and Age - Related Macular Degeneration (AMD), sponsored by Eyevensys. Not yet recruiting at 3 sites in France. Open to participants aged 65 Years and older. Per ClinicalTrials.gov, last updated 2026-07-16.

Sponsored by Eyevensys · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
24
Allocation
Not applicable
Ages
65 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 30 studies in Geographic Atrophy with a site in France — 6 open to participants now, 10 under way, 3 of them phase 3. Geographic Atrophy · France.

Planned enrollment
24th of 25
24 · median 310
Started
2026
with 1 other
Phase 2
8 of 30
4 open now
Registered
30th of 30
by date

Among the 30 studies in Geographic Atrophy with a site in France, this one is the 24th largest by planned enrollment of the 25 interventional ones, is one of 2 that started in 2026, is one of 8 in phase 2, and was the 30th registered.

By phase

30 studies; the count open now beside each. This study's row is marked.

Phase 314 · 1 open
Phase 2this study8 · 4 open
Observational5 · 1 open
No phase3 · 0 open

By the year they started

First in 2014; this study’s year is marked. 2 started in 2026.

Size and results

Median enrollment 310 across the 25 interventional studies, 202 across the 5 observational. Of the 20 that completed or were terminated, 15 (75%) have results posted.

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02

Study summary

The goals of this interventional study are (1) to evaluate the safety and tolerability of multiple doses of PST-611 in men and women over the age of 65 with geographic atrophy secondary to age-related macular degeneration and (2) to assess efficacy of multiple doses of PST-611 by assessing retinal morphology and visual function changes over time.

Participants will:

  • receive one dose every 20 weeks, for a total of 3 doses.
  • will be followed up for a total of 52 weeks following the first PST-611 dose.
Read the detailed description

The maximum study duration per patient is 64 Weeks (including an up to 12 week screening/baseline period + 52 weeks of follow-up after the first dose). The study is a multiple dose study that investigates one PST-611 dose level for the 3 planned administrations. The study will enroll up to 24 participants.

03

Conditions studied

  • Geographic Atrophy
  • Age - Related Macular Degeneration (AMD)

Keywords

  • Geographic atrophy
  • Age related macular degeneration
  • PST-611
04

Who can participate

Ages eligible
65 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Subjects must give written , be able to make the required trial visits and follow instructions.
  • Female and male subjects must be 65 years of age or older.
  • In the study eye (SE): cRORA must be present on OCT and attributed to AMD, as evaluated by the Investigator.
  • Documented recent history (i.e., over 3 to 12 months prior to first PST-611 administration) of GA lesion area progression, with a yearly growth projection of ≥ 1.6 mm2, in the SE
  • GA lesion area prior to the first PST-611 administration must be between 1.25 mm2 and 16 mm2, as assessed by OCT, in SE.
  • BCVA must be \< or = 75 ETDRS letters (Snellen \< or = 20/32) in the SE.
  • Fixation, either central or eccentric, of both eyes, must be compatible with the performance of the ocular imaging and functional assessments included in the trial, as evaluated by the Investigator.
  • If both eyes are eligible, the SE will be selected by the Investigator based on the totality of the clinical evaluation.

Exclusion criteria

Exclusion Criteria:

  • Both eyes (OU): any active intraocular or periocular infection or inflammation (eg, infectious blepharitis, infectious conjunctivitis, keratitis, scleritis, endophthalmitis), or history of intraocular or periocular infection or inflammation in the 12 weeks (84 days) prior to Dose 1.
  • SE: any intraocular surgery (including cataract surgery) or intravitreal (IVT) or periocular injection in the 12 weeks (84 days) prior to Dose 1.
  • SE: the documented need for more than 2 anti-VEGF IVT treatments per year as well as any anti-VEGF IVT treatment within 3 months prior to Dose 1, and lesion must be clinically inactive.
  • SE: media opacity that interferes with fundus imaging or is likely to require surgery during the trial period.
  • SE: subject with history of glaucoma filtering surgery (e.g., trabeculectomy or aqueous shunt implant) or who underwent eye surgery in the 12 weeks (84 days) prior to Dose 1.
  • SE: subject who has uncontrolled intraocular pressure of ≥ 25 mmHg in the SE at the Screening and Trial Baseline Visits.
  • SE: subject with intraocular hypotension (\<6 mmHg) in the SE that in the opinion of the Investigator would interfere with the PST-611 administrations or the evaluation of its safety or efficacy.
  • SE: subject with history of scleritis, scleral thinning, cicatrizing conjunctival diseases, severe ocular allergies, severe ocular surface disease, ocular scarring or intraocular hardware (e.g., retained implant device) that could interfere with the PST-611 administrations or the evaluation of its safety.
  • SE: any other concurrent ocular surface or intra-ocular condition, including retinal disease other than AMD, which, in the opinion of the Investigator, may pose a safety risk for the PST-611 administrations or interfere with the evaluation of its safety.
  • Subject has any condition, which in the opinion of the Investigator, could compromise the subject's safety or adherence to the trial protocol or follow-up.
  • Known/suspected to any standard of care topical or local analgesics/anesthetics or other standard of care treatments used in the preparation of PST-611 administration procedure.
  • Treatment with medicinal products in the 12 weeks (84 days) prior to Dose 1.
  • Subject previously exposed to any gene therapy product other than the non-viral gene therapy PST-611.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
24 participants (estimated)

Study arms

  • Experimental
    Active treatment

    This arm consists of 1 dose group receiving multiple dose of PST-611 (one PST-611 dose level for the 3 planned administrations).

    Biological: PST-611

Interventions

  • BiologicalPST-611

    PST-611 is a naked plasmid DNA encoding human transferrin administered into the ciliary muscle

06

What researchers measure

Primary outcomes

  1. Frequency and severity of ocular and non-ocular adverse events (Safety and Tolerability)

    Ocular and non-ocular adverse events over time will be recorded

    Time frame: Screening to week 52

Secondary outcomes

  1. Intraocular pressure

    Intraocular pressure measured in mmHg

    Time frame: Screening to week 52

  2. Best corrected visual acuity

    Best corrected visual acuity measured in ETDRS letters

    Time frame: Screening to week 52

  3. Slit lamp biomicroscopy examination

    Changes over time will be recorded

    Time frame: Screening to week 52

  4. Dilated ophthalmoscopy examination

    Changes over time will be recorded

    Time frame: Screening to week 52

  5. Color fundus photography

    Changes over time will be recorded

    Time frame: Screening to week 52

  6. Spectral Domain-Optical Coherence Tomography

    Changes over time will be recorded

    Time frame: Screening to week 52

  7. Quantitative contrast sensitivity function

    Changes over time will be recorded

    Time frame: screening to week 52

  8. Area of retinal pigment epithelium (RPE) loss

    Changes over time will be recorded. Area of RPE loss will be assessed by deep learning-based analysis of SD-OCT

    Time frame: screening to week 52

  9. Area of photoreceptor degeneration (EZ layer loss)

    Changes over time will be recorded. EZ layer loss will be assessed by deep learning-based analysis of SD-OCT

    Time frame: Screening to week 52

07

Study locations

3 sites
08

References and documents

Publications

  • Bigot K, Gondouin P, Benard R, Montagne P, Youale J, Piazza M, Picard E, Bordet T, Behar-Cohen F. Transferrin Non-Viral Gene Therapy for Treatment of Retinal Degeneration. Pharmaceutics. 2020 Sep 1;12(9):836. doi: 10.3390/pharmaceutics12090836. PubMed 32882879 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Sep 2026; primary completion for Jun 2028, 21 months later.

Of 24 phase 2 interventional studies under Geographic Atrophy, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 25 and three quarters within 54. This study's planned 21 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 10, 2026
First posted
Jul 15, 2026
StartEst.
Sep 2026
Primary completionEst.
Jun 2028
CompletionEst.
Jun 2028
Last update
Jul 16, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 16, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07705568
Lead sponsor
Eyevensys
Responsible party
Sponsor
First posted
Jul 15, 2026
Start date
Sep 2026 (estimated)
Primary completion
Jun 2028 (estimated)
Completion
Jun 2028 (estimated)
Last update
Jul 16, 2026

Study contacts

Karine Bigot, PhD
Contact
karine.bigot@pulsesight.com
+33 (0)1 84 79 10 62
Karine Bigot, PhD
study director · PulseSight Therapeutics

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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