CClinicalTrials.gg
Enrolling by invitationNCT07307469Updated Jun 17, 2026

Compassionate Administration of ZVS101e for Extended Treatment

An interventional study of ZVS101e in Bietti Crystalline Corneoretinal Dystrophy, sponsored by Chigenovo Co., Ltd. Enrolling by invitation at 5 sites in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-06-17.

Sponsored by Chigenovo Co., Ltd · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
32
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

To provide treatment options for the control group of subjects who completed the 52-week follow-up of the Phase III clinical trial (Protocol number: ZYA-2024-001) of ZVS101e in subjects with Bietti crystalline corneoretinal dystrophy (BCD).

Read the detailed description

The trial period lasts for a total of 8 weeks, including a 4-week screening period, a administration period, and visits on the 1st day, 7th day, and 4th week after administration. The patients will be followed up at the research center on the 1st day, 7th day and 4th week after administration to evaluate the safety.

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Conditions studied

  • Bietti Crystalline Corneoretinal Dystrophy
03

In context

Lead sponsor

Chigenovo Co., Ltd is the lead sponsor of 5 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

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

Inclusion criteria

  1. Subjects who were randomly assigned as the control group in a multicenter, randomized controlled, Phase III clinical trial (Protocol number: ZYA-2024-001) on the efficacy and safety of a single subretinal injection of ZVS101e in subjects with BCD and completed a 52-week safety follow-up were included.
  2. Voluntarily participate in clinical trials and sign informed consent forms, and be willing to complete all trial procedures as required by the protocol.
  3. Study the BCVA of the eye ≤60 ETDRS letters.

Exclusion criteria

Exclusion Criteria:

  1. The study eye currently has or has had macular degeneration such as macular holes or neovascularization in the macular area; Other ocular diseases such as glaucoma and diabetic retinopathy that may hinder surgery or interfere with the interpretation of the study endpoint.
  2. The study eye had undergone retinal repositioning surgery, vitrectomy, or had undergone any intraocular surgery within 3 months prior to enrollment, such as phacoemulsification for cataract.
  3. Within one month prior to enrollment, the patient had a viral infectious disease that may affect the efficacy and safety evaluation of the investigational drug or had received an antiviral vaccine.
  4. Any eye has previously received gene therapy or stem cell therapy for BCD and other ocular diseases, including but not limited to other viral vector gene therapies, mRNA therapies, etc.
  5. Known to be allergic to the drugs planned to be used in the study.
  6. The following laboratory test abnormalities have clinical significance:

    Liver function: ALT or AST>2 times the upper limit of the normal value; Abnormal coagulation function (prothrombin time ≥ the upper limit of normal value by 3 seconds, activated partial thromboplastin time ≥ the upper limit of normal value by 10 seconds).

  7. Pregnant or lactating women.
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Study design

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

Study arms

  • Experimental
    ZVS101e treatment

    The study eye of the subject receives a subretinal injection of ZVS101e.

    Drug: ZVS101e

Interventions

  • DrugZVS101e

    ZVS101e is a recombinant adeno-associated virus serotype 8 (rAAV8) vector expressing human CYP4V2 protein

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What researchers measure

Primary outcomes

  1. Incidence and severity of adverse events and serious adverse events

    This study specifies that the recording of adverse events begins on Day 0 (D0). Adverse events (AEs) include, but are not limited to, the following: 1. Worsening of pre-existing medical conditions/diseases (i.e., conditions present prior to enrollment in the clinical trial), including exacerbation of symptoms, signs, frequency of episodes, or abnormal laboratory test results; 2. Any newly occurring adverse medical conditions (including symptoms, signs, or newly diagnosed diseases); 3. Abnormal laboratory test values or results with clinical significance, or other safety assessments (e.g., vital signs measurements).

    Time frame: 4 weeks

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Study locations

5 sites
  • Peking University Third Hospital
    Beijing, Beijing Municipality, China
  • Zhongshan Ophthalmic Center, Sun Yat-sen University
    Guangzhou, Guangdong, China
  • Henan Provincial People's Hospital
    Zhengzhou, Henan, China
  • West China Hospital, Sichuan University
    Chengdu, Sichuan, China
  • Tianjin Medical University Eye Hospital
    Tianjin, Tianjin Municipality, China
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References and documents

Publications

  • Yang L, Li W, Zhang J, Chen S, Qiao J, Qu B, Zhang F, Shen X, Leung HYE, Lam DSC. ZVS101e: AAV-mediated gene replacement therapy for Bietti crystalline corneoretinal dystrophy (BCD). Asia Pac J Ophthalmol (Phila). 2026 May-Jun;15(3):100320. doi: 10.1016/j.apjo.2026.100320. Epub 2026 Apr 21. PubMed 42025802 ↗
  • Jia R, Chen S, Li W, Zhang J, Qu B, Qiao J, Meng X, Yu S, Liu X, Xu B, Chen T, Shen X, Sun W, Dou H, Mahajan VB, Zhang Q, Yang L. Unravelling CYP4V2: Clinical features, genetic insights, pathogenic mechanisms and therapeutic strategies in Bietti crystalline corneoretinal dystrophy. Prog Retin Eye Res. 2025 Jul;107:101377. doi: 10.1016/j.preteyeres.2025.101377. Epub 2025 Jun 5. PubMed 40482806 ↗
  • Jia R, Meng X, Chen S, Zhang F, Du J, Liu X, Yang L. AAV-mediated gene-replacement therapy restores viability of BCD patient iPSC derived RPE cells and vision of Cyp4v3 knockout mice. Hum Mol Genet. 2023 Jan 1;32(1):122-138. doi: 10.1093/hmg/ddac181. PubMed 35925866 ↗
  • Wang J, Zhang J, Yu S, Li H, Chen S, Luo J, Wang H, Guan Y, Zhang H, Yin S, Wang H, Li H, Liu J, Zhu J, Yang Q, Sha Y, Zhang C, Yang Y, Yang X, Zhang X, Zhao X, Wang L, Yang L, Wei W. Gene replacement therapy in Bietti crystalline corneoretinal dystrophy: an open-label, single-arm, exploratory trial. Signal Transduct Target Ther. 2024 Apr 24;9(1):95. doi: 10.1038/s41392-024-01806-3. PubMed 38653979 ↗
  • Yang L, Xing D, Zhang J, Liu B, Jiang X, Chen S, Li W, Qu B, Qiao J, Feng X, Jia H, Hu X, Yu S, Jia R, Wang L, Mahajan VB, Dou H, Lu F, Li X. Gene therapy for Bietti crystalline corneoretinal dystrophy: A phase 1/2 clinical trial. Mol Ther. 2026 Mar 4;34(3):1743-1755. doi: 10.1016/j.ymthe.2026.01.005. Epub 2026 Jan 10. PubMed 41520174 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07307469
Lead sponsor
Chigenovo Co., Ltd
Responsible party
Sponsor
First posted
Dec 29, 2025
Start date
Jul 2026 (estimated)
Primary completion
Jan 2027 (estimated)
Completion
Jul 2027 (estimated)
Last update
Jun 17, 2026

Oversight

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

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