An Open-label, Multicenter Trial to Assess Safety and Efficacy of a Subretinal Administration of AAVB-039

2025-522207-15-01 Protocol 039-101 Phase I and Phase II (Integrated) - First administration to humans Authorised, recruitment pending

Status Authorised, recruitment pending · 4 EU/EEA countries · 4 sites · Protocol 039-101

Overview

Sponsor-declared trial summary

Phase Phase I and Phase II (Integrated) - First administration to humans
Status Authorised, recruitment pending
Participants planned 75
Countries 4
Sites 4

Stargardt Disease (STGD1)

To determine the safety, tolerability and efficacy of a single administration of AAVB-039 via subretinal injection

Key facts

Sponsor
Aavantgarde Bio S.r.l.
Participant type
Pediatric, Patients
Age range
0-17 years, 18-64 years
Gender
Male and Female
Therapeutic area
Diseases [C] - Eye Diseases [C11], Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16]
Decision date (initial)
2026-04-10
Transition trial
No
Low-intervention
No
Rare-disease indication
Yes
Vulnerable population
Yes

External identifiers

EU CT number
2025-522207-15-01
ClinicalTrials.gov
NCT07161544

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Dose response, Pharmacogenomic, Prophylaxis, Therapy, Diagnosis, Efficacy, Safety

To determine the safety, tolerability and efficacy of a single administration of AAVB-039 via subretinal injection

Conditions and MedDRA coding

Stargardt Disease (STGD1)

VersionLevelCodeTermSystem organ class
20.1 PT 10062766 Stargardt's disease 100000004850

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 4

  1. Molecular diagnosis of Stargardt disease due to ABCA4 mutation
  2. Aged ≥8 years to ≤55 years inclusive
  3. Willingness to adhere to protocol per informed consent
  4. No history of vitreoretinal or retinal macular surgery, No current history of cancer for 5 years, No history of myocardial infarct, stroke, or other heart conditions < 6 months

Exclusion criteria 5

  1. Unwillingness to meet the requirements of the study
  2. Participation in a clinical study with another Investigation Medicinal Product
  3. Previous participation in another gene or cell therapy trial
  4. Any condition that would preclude subretinal surgery
  5. Complicating ocular and/or systemic diseases

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. To measure the number and severity of treatment related adverse events following treatment with AAVB-039

Secondary endpoints 4

  1. Change in the area of atrophy (assessed via short wavelength fundus autofluorescence (SW-FAF), following treatment with AAVB-039.
  2. Change in ellipsoid zone (EZ) loss following treatment with AAVB-039.
  3. Change in macular sensitivity assessed via microperimetry following treatment with AAVB-039
  4. Change in visual acuity following treatment with AAVB-039

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

AAVB-039

PRD12697549 · Product

Active substance
Combination of Two Adeno-Associated Viral Vectors of Serotype 8 Containing the 5'- and the 3'- Half Coding Sequences of Human ABCA4 Fused to Inteins
Other product name
Dual AAV8.5’ABCA4; AAV8.5’ABCA4 and AAV8.3’ABCA4
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
SUBRETINAL USE
Authorisation status
Not Authorised
MA holder
AAVANTGARDE BIO
Paediatric formulation
No
Orphan designation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Aavantgarde Bio S.r.l.

Sponsor organisation
Aavantgarde Bio S.r.l.
Address
Via Uberto Visconti Di Modrone 18
City
Milan
Postcode
20122
Country
Italy

Scientific contact point

Organisation
Aavantgarde Bio S.r.l.
Contact name
Nicola Tuckwell

Public contact point

Organisation
Aavantgarde Bio S.r.l.
Contact name
Tessa Brandon

Third parties 1

OrganisationCity, countryDuties
Ora Europe Limited
ORG-100044931
London, United Kingdom On site monitoring, Code 12, Code 2, Code 5, Data management, E-data capture, Code 8

Locations

4 EU/EEA countries · 4 investigational sites

By country

CountryMS statusPlanned subjectsSites
Belgium Authorised, recruitment pending 3 1
Italy Authorised, recruitment pending 8 1
Netherlands Authorised, recruitment pending 6 1
Norway Authorised, recruitment pending 4 1
Rest of world
United Kingdom, United States
54

Investigational sites

Belgium

1 site · Authorised, recruitment pending
Universitair Ziekenhuis Gent
Ophthalmology, Corneel Heymanslaan 10, 9000, Gent

Italy

1 site · Authorised, recruitment pending
Azienda Ospedaliera Universitaria Universita' Degli Studi Della Campania Luigi Vanvitelli
Ophthalmology, Via Sergio Pansini 5, 80131, Naples

Netherlands

1 site · Authorised, recruitment pending
The Rotterdam Eye Hospital
Rotterdams Oogheelkundig Instituut, Schiedamse Vest 180, 3011 BH, Rotterdam

Norway

1 site · Authorised, recruitment pending
Oslo University Hospital HF
Ophthalmology, P. O. Box 4950, 0424, Oslo

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 45 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol Clarification Letter N/A
Protocol (for publication) D1_Protocol_2025-522207-15_redacted 2.0
Protocol (for publication) D4_Patient facing documents_EQ-5D-3L_ENG_Redacted 2.2
Protocol (for publication) D4_Patient facing documents_EQ-5D-Y-3L_ENG_Redacted 2.4
Protocol (for publication) D4_Patient facing documents_MRDQ_ENG_Redacted AU1.0
Protocol (for publication) D5_Protocol Lay Summary_2025-522207-15_Redacted 2.0
Recruitment arrangements (for publication) K1_Recruitment Arrangements n/a
Recruitment arrangements (for publication) K1_Recruitment Arrangements n/a
Recruitment arrangements (for publication) K1_Recruitment Arrangements_ITA n/a
Recruitment arrangements (for publication) K1_Recruitment Procedure_NL n/a
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 08-11_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 08-11_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 12-15_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 12-16_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 12-17_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 12-17_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 16-17_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 8-11_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Ado 8-11_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Adult_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Adult_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Adult_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Adult_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Concierge Screening_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Genetic Testing Of Relative_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Genetic Testing of Relative_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Genetic Testing Of Relative_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Parent _Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Parent_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Parent_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Parent_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pre-Screening Concierge_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pre-Screening Concierge_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnancy Follow-up_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnancy Follow-Up_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnancy Follow-Up_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnancy Follow-Up_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnant Partner_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnant Partner_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnant Partner_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Pregnant Partner_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Privacy and data processing_Genetic_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Privacy and data processing_Redacted 2.0
Subject information and informed consent form (for publication) L1_SIS and ICF_Screening Concierge_Redacted 2.0
Synopsis of the protocol (for publication) D1_Protocol Synopsis_EN 2025-522207-15_Redacted 2.0

Application history

2 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-12-12 Belgium Acceptable
2026-04-10
2026-04-10
2 NON SUBSTANTIAL MODIFICATION NSM-1 2026-05-21 Belgium Acceptable
2026-04-10
2026-05-21