The Safety and Efficacy of ZVS106e in the Treatment of IRDs Caused by Biallelic Mutations in ABCA4

NCT ID: NCT07241169

Last Updated: 2025-11-21

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Clinical Phase: EARLY_PHASE1
• Total Enrollment: 9 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-12-26
• Study Completion Date: 2028-12-30

Brief Summary

To evaluate the preliminary safety of monocular and single subretinal injection of ZVS106e injection in the treatment of patients with hereditary retinal degeneration (ABCA4-IRDS) caused by ABCA4 biallelic mutations.

Detailed Description

The main research objective: To evaluate the preliminary safety of single subretinal injection of ZVS106e injection in one eye for patients with hereditary retinal degeneration (ABCA4-IRDS) caused by biallelic mutations in ABCA4. Secondary research objective: To preliminarily explore the clinical efficacy of ZVS106e injection in the treatment of patients with hereditary retinal degeneration (ABCA4-IRDS) caused by ABCA4 biallelic mutations. The purpose of the exploratory study is to evaluate the improvement of retinal structure and visual function in non-injection eyes compared to the baseline.

Conditions

Stargardt

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Single arm

All patients enrolled in the study will receive a single subretinal injection of ZVS106e in one eye

Group Type: EXPERIMENTAL

ZVS106e

Intervention Type: DRUG

ZVS106e is A colorless, clear and transparent liquid, containing two active ingredients, ZVS106E-A and ZVS106E-B. The viral vectors used for both active ingredients are rAAV8

Interventions

ZVS106e

ZVS106e is A colorless, clear and transparent liquid, containing two active ingredients, ZVS106E-A and ZVS106E-B. The viral vectors used for both active ingredients are rAAV8

Intervention Type: DRUG

Other Intervention Names

rAAV8

Eligibility Criteria

Inclusion Criteria

1. Age ≥8 years old;

2. Patients diagnosed with hereditary retinal degeneration caused by ABCA4 biallelic mutations through genetic testing, and without other ophthalmic genetic diseases;

3. The target eye must meet the following requirements: the best corrected visual acuity is 0.5 to 2.0 LogMAR (including 0.5 and 2.0 LogMAR, equivalent to the decimal visual acuity index up to 0.3);

4. The subject and his or her spouse agree to take effective contraceptive measures during the trial period and for at least one year after administration.

5. Voluntarily participate in clinical trials and sign informed consent forms, and be able to complete all trial processes as required by the protocol.

Exclusion Criteria

1. The researchers determined that the target eye currently has or has previously had other macular lesions such as retinal schisis or epiretinal membrane. Or have other eye diseases that may hinder the surgery or interfere with the interpretation of the study endpoint;

2. Having received drug treatment that may affect the observation of the trial within the three months prior to screening;

3. The target eye has undergone the following intraocular surgeries: retinal repositioning and vitrectomy;

4. There are known eye/visual diseases, disorders or lesions that cause or are related to vision loss, or whose related treatments or therapies are known to cause or are related to vision loss;

5. Having suffered from a viral infectious disease that may affect the efficacy and safety evaluation of the investigational drug or having received an antiviral vaccine within one month prior to enrollment;

6. Systemic medications that are currently in use or may be required to cause eye toxicity, such as psoralen, risselinic acid or tamoxifen, etc.

7. Known to be allergic to the drugs planned to be used in the study;

8. Suffering from poorly drug-controlled hypertension: systolic blood pressure ≥160 mmHg or diastolic blood pressure ≥100 mmHg;

9. The following laboratory test abnormalities have clinical significance:

Liver function: Chronic liver disease, elevation of ALT or AST >2 times the upper limit of the normal value; Those with abnormal coagulation function (prothrombin time ≥ 3 seconds above the upper limit of the normal value, activated partial thromboplastin time ≥ 10 seconds above the upper limit of the normal value); Serum virological examination: Positive for active hepatitis B, hepatitis C virus antibody (HCV-Ab), human immunodeficiency virus antibody (HIV-Ab), or syphilis antibody;

10. There is any past or current medical history that may affect the safety of the trial or the in vivo process of the drug, especially a history of diseases such as cardiovascular, liver, kidney, endocrine, digestive tract, lung, nervous, hematological, tumor, immune or metabolic disorders that the investigators consider to have clinical significance;

11. Those who have participated in any clinical trials of drugs or medical devices within the three months prior to screening;

12. Pregnant or lactating women; According to the researcher's judgment, those who are deemed unsuitable to participate in this clinical trial for other reasons

• Minimum Eligible Age: 8 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Zhongshan Ophthalmic Center, Sun Yat-sen University

OTHER

Sponsor Role: lead

Responsible Party

Qingjiong Zhang

PI

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

qingjiong zhang, M.D

Role: STUDY_DIRECTOR

PI

lin Lv, M.D

Role: PRINCIPAL_INVESTIGATOR

PI

Central Contacts

dayou Ding

Role: CONTACT

dingdayou@chinagene.cc

010-82266699

Other Identifiers

ZYA-2025-002

Identifier Type: -

Identifier Source: org_study_id