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Myopic Choroidal NeovascularizationNCT07402629

Deep Learning-Based OCTA Quantification and Modeling for Predicting Long-Term Anti-VEGF Efficacy in mCNV

An observational study of Myopic Choroidal Neovascularization, run by Second Affiliated Hospital, Zhejiang University, School of Medicine.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

Myopic choroidal neovascularization (mCNV) is one of the sight-threatening complications secondary to pathological myopia. Intravitreal injection of anti-vascular endothelial growth factor (VEGF) is its first-line therapy. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Myopic Choroidal Neovascularization
How many people
110 participants
Where
No sites listed yet
Study dates
1 Mar 2026to 31 Dec 2028
How long will I take part?
24 Months
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Subjects with initially diagnosed, treatment-naïve active mCNV who are scheduled to undergo intravitreal anti-VEGF injection.

Who may be able to join

  • Myopic spherical equivalent greater than -6.0 diopters and/or axial length > 26.5 mm.
  • Patients presenting with myopic fundus changes, as defined by the International Photographic Classification System for Myopic Maculopathy.
  • Completion of a comprehensive ophthalmic examination at initial diagnosis, including Best Corrected Visual Acuity , slit-lamp examination, dilated fundus examination, intraocular pressure measurement, refractometry, axial length measurement, color fundus photography, Optical Coherence Tomography, OCT Angiography, and Fundus Fluorescein Angiography.
  • Patients with active mCNV at initial diagnosis who are treatment-naïve.
  • Final inclusion of all images required confirmation by two retinal specialists. Images with discrepant assessments were adjudicated by a senior researcher to reach a final decision.

Who cannot join

  • Patients with choroidal neovascularization (CNV) due to causes other than myopia, such as age-related macular degeneration, adult-onset foveomacular vitelliform dystrophy, multifocal choroiditis, punctate inner choroidopathy, or retinoschisis.
  • Poor-quality OCTA images, for example, those containing projection artifacts from overlying vessels at the mCNV lesion site, or excessively dark images dominated by thick outer choroidal vessels.
  • Patients with a history of intraocular surgery, such as prior pars plana vitrectomy.
  • Subjects who developed any of the above conditions during the follow-up period or who requested to withdraw from the study were removed from the experimental cohort.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

About this study

Myopic choroidal neovascularization (mCNV) is one of the sight-threatening complications secondary to pathological myopia. Intravitreal injection of anti-vascular endothelial growth factor (VEGF) is its first-line therapy. However, mCNV is prone to recurrence and long-term visual decline, and there is currently no definitive method for predicting long-term prognosis. This project aims to conduct a long-term follow-up and multi-dimensional quantitative analysis of mCNV using optical coherence tomography angiography (OCTA) images. It seeks to evaluate long-term prognostic indicators, such as recurrence and long-term visual acuity, following anti-VEGF therapy for mCNV, and to construct a deep learning (DL) prediction model for anti-VEGF efficacy based on multi-modal clinical data, ultimately enabling treatment personalization.

First, deep learning technology will be utilized to segment and quantitatively analyze mCNV in OCTA images, obtaining multi-dimensional quantitative parameters. These include OCTA-based The mCNV area and vessel junction(VJ). Patients will be followed up regularly for two years post-treatment, monitoring the number of injections, mCNV recurrence, OCT and OCTA quantitative parameters, fundus chorioretinal atrophy lesions, and visual acuity status. A multi-modal DL prediction model will be constructed, primarily based on the multi-dimensional quantitative characteristics of mCNV from OCTA images. This model will aim to identify sensitive indicators for predicting best-corrected visual acuity and recurrence after anti-VEGF therapy for mCNV and to clarify the relationship between therapeutic efficacy, baseline lesion status, and treatment regimen selection.

This research will open new avenues for clinically assessing the long-term efficacy of anti-VEGF therapy for mCNV, significantly improve the efficiency and accuracy of efficacy evaluation, and provide a critical reference for personalizing anti-VEGF treatment plans, holding substantial clinical significance.

Being tested
No interventions beyond routine medical care
Keywords
Deep learning

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • No interventions beyond routine medical careOther

    No interventions beyond routine medical care

Study groups in NCT07402629
Study groupRoleWhat they receive
Treatment-naïve patients with active mCNV at initial diagnosis, scheduled for intravitreal anti-VEGFNot described
Receives: Other: No interventions beyond routine medical care

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Best-Corrected Visual Acuity at 24 Months

    This outcome evaluates the change in best-corrected visual acuity (BCVA) from baseline to 24 months in eyes with myopic choroidal neovascularization receiving intravitreal anti-vascular endothelial growth factor treatment as part of routine clinical care. BCVA reflects functional visual outcome and is measured at each visit using the Early Treatment Diabetic Retinopathy Study (ETDRS) chart under standardized testing conditions. BCVA values are recorded as ETDRS letter scores, and the primary assessment is the within-eye change from baseline to the 24-month follow-up visit.

    Measured: Baseline to 24 months

  2. Number of Recurrence Events During 24-Month Follow-up

    This outcome assesses disease activity by quantifying the number of recurrence events during the 24-month follow-up period in eyes with myopic choroidal neovascularization treated with intravitreal anti-vascular endothelial growth factor therapy. Recurrence is defined as the reappearance of active myopic choroidal neovascularization following an initial treatment response, as determined by clinical examination and imaging findings, including evidence of lesion activity that necessitates additional anti-vascular endothelial growth factor treatment.

    Measured: Baseline to 24 months

Secondary outcomes (2)
  1. Change in Myopic Choroidal Neovascularization Area at 24 Months

    This outcome evaluates anatomical changes of the neovascular lesion by assessing the change in myopic choroidal neovascularization (mCNV) area from baseline to 24 months using optical coherence tomography angiography (OCTA). mCNV area is defined as the total en face area of the neovascular lesion identified on OCTA images. Measurements are obtained at baseline and follow-up visits to assess longitudinal changes in lesion size associated with anti-vascular endothelial growth factor treatment during the 24-month observation period.

    Measured: Baseline to 24 months

  2. Change In Number of Vessel Junctions at 24 Months

    This outcome assesses microvascular structural characteristics of the myopic choroidal neovascularization lesion by evaluating changes in the number of vessel junctions from baseline to 24 months using optical coherence tomography angiography (OCTA). Vessel junctions are defined as branching or connection points within the neovascular network visible on OCTA images. Changes in vessel junctions over time are used to describe morphological remodeling of the neovascular complex following intravitreal anti-vascular endothelial growth factor treatment during the follow-up period.

    Measured: Baseline to 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Feb 2026
  2. Study start1 Mar 2026 (estimated)
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion31 Dec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
110 participants (estimated)
Target duration
24 Months
IDs, dates and publications
ClinicalTrials.gov ID
NCT07402629
Sponsor's protocol ID
2025-1039
Status last verified
Sep 2025
First submitted
24 Sep 2025
Last updated
11 Feb 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Yang HS, Kim JG, Kim JT, Joe SG. Prognostic factors of eyes with naive subfoveal myopic choroidal neovascularization after intravitreal bevacizumab. Am J Ophthalmol. 2013 Dec;156(6):1201-1210.e2. doi: 10.1016/j.ajo.2013.08.002. Epub 2013 Sep 25.

    PubMed 24075429
  • Wang Y, Hu Z, Zhu T, Su Z, Fang X, Lin J, Chen Z, Su Z, Ye P, Ma J, Zhang L, Li J, Feng L, Sun CB, Zhang Z, Shentu X. Optical Coherence Tomography Angiography-Based Quantitative Assessment of Morphologic Changes in Active Myopic Choroidal Neovascularization During Anti-vascular Endothelial Growth Factor Therapy. Front Med (Lausanne). 2021 May 7;8:657772. doi: 10.3389/fmed.2021.657772. eCollection 2021.

    PubMed 34026789
  • Hosoda Y, Miyata M, Uji A, Ooto S, Yamashiro K, Tamura H, Oishi A, Ueda-Arakawa N, Miyake M, Hata M, Muraoka Y, Takahashi A, Tsujikawa A. Novel Predictors of Visual Outcome in Anti-VEGF Therapy for Myopic Choroidal Neovascularization Derived Using OCT Angiography. Ophthalmol Retina. 2018 Nov;2(11):1118-1124. doi: 10.1016/j.oret.2018.04.011. Epub 2018 May 31.

    PubMed 31047549
  • Miyata M, Ooto S, Hata M, Yamashiro K, Tamura H, Akagi-Kurashige Y, Nakanishi H, Ueda-Arakawa N, Takahashi A, Kuroda Y, Wakazono T, Yoshikawa M, Yoshimura N. Detection of Myopic Choroidal Neovascularization Using Optical Coherence Tomography Angiography. Am J Ophthalmol. 2016 May;165:108-14. doi: 10.1016/j.ajo.2016.03.009. Epub 2016 Mar 10.

    PubMed 26973049
  • Rocholz R, Corvi F, Weichsel J, Schmidt S, Staurenghi G. OCT Angiography (OCTA) in Retinal Diagnostics. 2019 Aug 14. In: Bille JF, editor. High Resolution Imaging in Microscopy and Ophthalmology: New Frontiers in Biomedical Optics [Internet]. Cham (CH): Springer; 2019. Chapter 6. Available from http://www.ncbi.nlm.nih.gov/books/NBK554041/

    PubMed 32091844
  • Li S, Sun L, Zhao X, Huang S, Luo X, Zhang A, Chen C, Wang Z, Liu C, Ding X. ASSESSING THE ACTIVITY OF MYOPIC CHOROIDAL NEOVASCULARIZATION: Comparison Between Optical Coherence Tomography Angiography and Dye Angiography. Retina. 2020 Sep;40(9):1757-1764. doi: 10.1097/IAE.0000000000002650.

    PubMed 31652198
  • Zhu Y, Zhang T, Xu G, Peng L. Anti-vascular endothelial growth factor for choroidal neovascularisation in people with pathological myopia. Cochrane Database Syst Rev. 2016 Dec 15;12(12):CD011160. doi: 10.1002/14651858.CD011160.pub2.

    PubMed 27977064
  • Soubrane G. Choroidal neovascularization in pathologic myopia: recent developments in diagnosis and treatment. Surv Ophthalmol. 2008 Mar-Apr;53(2):121-38. doi: 10.1016/j.survophthal.2007.12.004.

    PubMed 18348878
  • Wong TY, Ferreira A, Hughes R, Carter G, Mitchell P. Epidemiology and disease burden of pathologic myopia and myopic choroidal neovascularization: an evidence-based systematic review. Am J Ophthalmol. 2014 Jan;157(1):9-25.e12. doi: 10.1016/j.ajo.2013.08.010. Epub 2013 Oct 5.

    PubMed 24099276
  • Mi L, Zuo C, Zhang X, Liu B, Peng Y, Wen F. Fluorescein Leakage within Recent Subretinal Hemorrhage in Pathologic Myopia: Suggestive of CNV? J Ophthalmol. 2018 Aug 13;2018:4707832. doi: 10.1155/2018/4707832. eCollection 2018.

    PubMed 30186627

Questions about this trial

What is this clinical trial studying?

An observational study of Myopic Choroidal Neovascularization, run by Second Affiliated Hospital, Zhejiang University, School of Medicine.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 11 Feb 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Yao Wang 王 (+8613968028750, wangyao@zju.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Best-Corrected Visual Acuity at 24 Months (time frame: Baseline to 24 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07402629, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Feb 2026.

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