Natural History Study of Advanced RCD (ECSTASI)

October 5, 2026 updated by: SparingVision

External Control, preScreening, and naTurAl hiStory of Advanced retInal Degeneration Due to Rod-cone Dystrophy (ECSTASI)

ECSTASI is a Natural History Study, which will be monitoring how standard of care (SoC) affect advanced rod-cone dystrophy (RCD), a type of eye disease also known as retinitis pigmentosa. No experimental, investigational or any other drug or treatment will be tested during the study.

This study collects information in 3 parts:

Part 1: retrospective health information from medical records (up to past 10 years), Part 2: prospective health information from in-person visits (up to 1 year), and Part 3: prospective health information from medical records (up to 1 year). Participants will decide if they wish to participate in all or only to some of these parts.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

100

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Medical Director

Study Contact Backup

Study Locations

  • Belgium
      • Ghent, Belgium
        • Recruiting
        • Ghent University Hospital
        • Contact:
        • Principal Investigator:
          • Bart Leroy, Prof
  • France
      • Paris, France
        • Not yet recruiting
        • CHNO XV-XX Paris - CIC 1423
        • Contact:
        • Principal Investigator:
          • Isabelle Audo, Dr
  • Ireland
      • Dublin, Ireland
        • Not yet recruiting
        • Royal Victoria Eye And Ear Hospital
        • Contact:
        • Principal Investigator:
          • Emma Duignan, Dr

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Males and females 18 years of age or older, with history of formed vision
  2. Clinical diagnosis of advanced retinal degeneration due to RCD
  3. BCVA no better than (≥) 1.0 LogMAR (≤35 Early-Treatment Diabetic Retinopathy Study [ETDRS] letters, or 20/200 Snellen equivalent) in at least one eye
  4. Documented preservation of foveal Outer Nuclear Layer (ONL) in at least one eye

Exclusion Criteria:

  1. Individuals who are receiving or have received an investigational medicinal product (IMP) in another clinical trial are excluded from the prospective part . However, they can participate in the retrospective part of the study.
  2. Individuals with a medical condition (systemic or ophthalmic), psychiatric condition (including substance abuse disorder), physical examination or laboratory findings that may in the opinion of the Investigator preclude adherence to the scheduled study visits, safe participation in the study, or affect study results are excluded from participating in in-person study visits. However, they can participate in the collection of data reported during both retrospective and prospective SoC routine eye examinations.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Prospective and/or retrospective data collection

This Natural History study is designed as a combination of prospective and retrospective evaluations in patients diagnosed with advanced RCD. Prospective data will be collected during in-person study visits and/or SoC routine eye examinations (not planned per protocol) as they are reported in the medical records of the participant for up to 1 year after study enrollment. Retrospective data will be collected from the medical records of the participant for up to 10 years before enrollment.
Other: Eye examinations

Routine eye examinations (including slit lamp exam and dilated fundus exam), standard visual assessments (such as best corrected visual acuity test and ocular coherence tomography), evaluation of visual function (such as microperimetry).

Other: Questionnaire

Patient-reported quality of life questionnaire.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Best-corrected visual acuity (BCVA)
Time Frame: At 6 months

Change in BCVA from Baseline to Month 6
At 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To evaluate the effects of SoC on visual function at 1 year of follow up
Time Frame: At 1 year

Change in BCVA from baseline to Year 1
At 1 year
To determine the precision and reliability of the assessments of visual function measured in ECSTASI
Time Frame: 1 year

Test-retest variability and signal-to-noise ratio of visual function measurements such as BCVA and microperimetry.
1 year
To evaluate participant potential eligibility for the Phase 1/2a clinical trial of SPVN20 (NYRVANA).
Time Frame: 1 year

Percentage of participants potentially eligible to participate in the Phase 1/2a clinical trial of SPVN20 (NYRVANA), based on data collected in the ECSTASI study.
1 year
To evaluate the effects of SOC on visual function at 6 months and 1 year of follow-up for FST
Time Frame: 1 year

Change in FST from baseline to Month 6 and Year 1
1 year
To evaluate the effects of SOC on visual function at 6 months and 1 year of follow-up for microperimetry
Time Frame: 1 year

Change in microperimetry foveal sensitivity from baseline to Month 6 and Year 1
1 year
To evaluate the effects of SOC on visual function at 6 months and 1 year of follow-up for eye dominance
Time Frame: 1 year

Change in eye dominance from baseline to Month 6 and Year 1
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

SparingVision

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 11, 2026

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

September 1, 2028

Study Registration Dates

First Submitted

August 17, 2026

First Submitted That Met QC Criteria

September 28, 2026

First Posted (Actual)

October 2, 2026

Study Record Updates

Last Update Posted (Actual)

October 8, 2026

Last Update Submitted That Met QC Criteria

October 5, 2026

Last Verified

October 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SPVN-NHS-03

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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