ClinicalTrials.gg
Active, not recruitingNCT04844619KDR-NVGUpdated Dec 11, 2024

KDR2-2 Suspension Eyedrop in the Treatment of Neovascular Glaucoma (KDR-NVG) Trial

A Phase 1 interventional study of 4mg/ml KDR2-2 suspension eyedrop and 16mg/ml KDR2-2 suspension eyedrop in Neovascular Glaucoma and Neovascularization, sponsored by Sun Yat-sen University. Active, not recruiting at 1 site in China. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-12-11.

Sponsored by Sun Yat-sen University · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Dec 2024, 1 year 10 months ago, but the record still lists the study as active, not recruiting.
Phase
Phase 1
Study type
Interventional
Enrollment
40
Allocation
Not applicable
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The clinical trial is aimed to evaluate the anti-neovascular effect of KDR2-2 suspension eyedrop in the treatment of neovascular glaucoma. Fourty subjects would receive either 0.96 or 3.84 mg/per day/eye, in a QID fashion, ×7 days (those without complications can continue to 28 days). The anti-neovascular effect of KDR2-2 on iris neovascularization would be evaluated at day 1, day 7, day 14, day 28 after KDR2-2 usage.

Read the detailed description

Neovascular glaucoma (NVG) has a high blinding rate and poor prognosis. Anti-glaucoma surgery is the main stake of saving visual function and relieving pain, but the proliferation of iris neovascularization (NVI) makes it difficult to treat NVG. Normally, the patients need an intravitreal injection of anti-vascular endothelial growth factor (anti-VEGF) agents prior to glaucoma surgery to control the NVI proliferation.

KDR2-2, a novel small-molecule tyrosine kinase inhibitor targeting VEGF receptor 2 (VEGFR2), has demonstrated anti-neovascular effect without obvious side-effects or complications in animal studies and a Phase I clinical trial (NCT04620109). In this study, 40 patients with NVG will be included to evaluate the effectiveness of KDR2-2 suspension eyedrop on NVI in NVG eyes. The included subjects would receive either 0.96 or 3.84 mg/day/eye, in a QID fashion, ×7 days (those without complications can continue to 28 days).

This study aims to and propose a novel, non-invasive and more compliant method for the treatment of NVG.

02

Conditions studied

  • Neovascular Glaucoma
  • Neovascularization

Keywords

  • Neovascular Glaucoma
  • Neovascularization
  • anti-VEGF
  • vascular endothelial growth factor
03

In context

Glaucoma, Neovascular

39 studies on the registry are indexed under Glaucoma, Neovascular; 5 are open to participants now.

This study's planned enrollment of 40 is close to the median of 40 across 32 interventional studies indexed under Glaucoma, Neovascular.

Browse Glaucoma, Neovascular studies →

Lead sponsor

Sun Yat-sen University is the lead sponsor of 1,690 studies on the registry; 619 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18-75;
  • The best-corrected visual acuity (BCVA) of the included eyes was \<0.01 (Snellen chart);
  • The BCVA of the contralateral eye of the included subjects was >0.1;
  • Patients with clinically diagnosed neovascular glaucoma; The diagnostic criteria for neovascularization glaucoma were as follows: Intraocular pressure > 21mmHg measured by Goldmann applanation tonometer; Neovascularization is seen in the iris or anterior chamber angle, with or without corneal edema;
  • Compliance with follow up for more than 28 days and written obtained;

Exclusion criteria

Exclusion Criteria:

  • Intravitreal injection of anti-VEGF drugs within 3 month before enrollment;
  • Participation in other clinical trials within 1 month;
  • Suffering from other ocular diseases that affect ocular examinations (e.g. keratopathy, uveitis, intraocular infection, etc.);
  • Those who plan to receive ocular surgery during the follow-up period;
  • Premenopausal women without ;
  • Having other systemic diseases such as severe liver and kidney function damage, cardiovascular disorders, respiratory disorders, etc.) that may affect the anti-neovascular effect of KDR2-2 or more likely to develop adverse events ;
  • Systemic infections under treatment;
  • Any study in which the physician believes that the patient's condition will interfere with the clinical trial (e.g., the patient is prone to stress, mood disorders, depression, etc.);
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
40 participants (estimated)

Study arms

  • Experimental
    KDR2-2 group

    The patients with NVG will receive 4.0 mg/ml or 16.0mg/ml KDR2-2 suspension eyedrop and the anti-neovascular effect of KDR2-2 would be evaluated during the follow-up visits.

    Drug: 4mg/ml KDR2-2 suspension eyedrop · Drug: 16mg/ml KDR2-2 suspension eyedrop

Interventions

  • Drug4mg/ml KDR2-2 suspension eyedrop

    KDR2-2 is a synthetic anti-angiogenic chemical compound with highly effective inhibition on vascular endothelial growth factor receptor-2 (VEGFR2), and an additional, moderate inhibitory effect on platelet-derived growth factor receptor β (PDGFRβ). KDR2-2 suspension eyedrop is developed for the treatment of iris neovascularization.

    Also known as: Low-dose KDR2-2

  • Drug16mg/ml KDR2-2 suspension eyedrop

    KDR2-2 is a synthetic anti-angiogenic chemical compound with highly effective inhibition on vascular endothelial growth factor receptor-2 (VEGFR2), and an additional, moderate inhibitory effect on platelet-derived growth factor receptor β (PDGFRβ). KDR2-2 suspension eyedrop is developed for the treatment of iris neovascularization.

    Also known as: High-dose KDR2-2

06

What researchers measure

Primary outcomes

  1. Changes of iris neovascularization

    Changes of the iris neovascularization using anterior photography or anterior optical coherence tomography angiography.

    Time frame: Day 0 and 7

Secondary outcomes

  1. Intraocular pressure

    Measurement of intraocular pressure using non-contact tonometer or iCare tonometer

    Time frame: Day 0,7 and 28

  2. Best-corrected visual acuity

    Measurement of best-corrected visual acuity with Snellen LogMAR Chart

    Time frame: Day 0,7 and 28

  3. Adverse events

    Adverse events related with the anti-angiogenic effect of KDR2-2

    Time frame: Day 0,7 and 28

  4. Changes of iris neovascularization

    Changes of the iris neovascularization using anterior photography or anterior optical coherence tomography angiography.

    Time frame: Day 0,7 and 28

07

Study locations

1 site
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Apr 2021 (actual). Primary completion is estimated for Dec 2024, 44 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 13, 2021
First posted
Apr 14, 2021
StartActual
Apr 19, 2021
Primary completionEst.
Dec 31, 2024
CompletionEst.
Dec 31, 2024
Last update
Dec 11, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 11, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04844619
Responsible party
Xiulan Zhang (Professor of Ophthalmology, Director of Clinical Research Center, Director of CFDA-certified Pharmaceutical Research Unit, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University) — Principal investigator
First posted
Apr 14, 2021
Start date
Apr 19, 2021
Primary completion
Dec 31, 2024 (estimated)
Completion
Dec 31, 2024 (estimated)
Last update
Dec 11, 2024

Study contacts

Xiulan Zhang, MD, PhD
principal investigator · Zhongshan Ophthalmic Center, Sun Yat-sen University

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Dec 2024. You cannot join it, but the record below documents what was studied.

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