Study on Precision Treatment of Diabetic Retinopathy Macular Edema Guided by Real-time OCT During Operation

NCT ID: NCT05138029

Last Updated: 2023-08-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-11-15

Study Completion Date

2024-05-31

Brief Summary

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Select Proliferative Proliferative diabetic retinopathy(PDR) patients who are planning to undergo vitrectomy for informed notification. After obtaining informed consent, vitrectomy will be performed. After hemorrhage is removed, the macular shape can be obtained through intraoperative optical coherence tomography (iOCT) real-time scanning. If the central Macular Thickness (CMT) of the patient is ≥250μm, random Enter the Anti-vascular endothelial growth factor (anti-VEGF) treatment group, the internal limiting membrane stripping group and the glucocorticoid treatment group for treatment, and compare the patients' visual acuity (1 day, 7 days, 1 month, 3 months, 6 months) and The thickness of the center of the macula, compare and observe its treatment effect.

Detailed Description

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1. Test method:

* Include suitable cases of diabetic retinopathy and macular edema Inclusion criteria: a. PDR patients with severe vitreous hemorrhage who cannot collect oct images and require vitrectomy b. Type 2 diabetes, aged 18\~80 years old c. Good blood sugar control (glycated hemoglobin \<8.3%) d. Sign the informed consent form voluntarily, and are willing and able to follow the outpatient visits and research procedures within the time specified in the trial Exclusion criteria: a. Exclude severe infections of conjunctiva, cornea, and sclera b. Combined with other retinal vascular diseases such as retinal vein occlusion c. Cardiorenal insufficiency d. Myocardial infarction or stroke occurred within 6 months ②Intraoperative real-time operation All patients underwent 25Gauge(25G) transplanter three-channel vitrectomy to remove cloudy vitreous or vitreous hemorrhage and posterior vitreous cortex. Through intraoperative oct, the macular area was observed in real time and the central macular thickness was measured. If central macular thickness (CMT) ≥ 250 μm, anti-VEGF, glucocorticoid, or internal limiting membrane peeling was randomly selected to treat macular edema.

* Re-examine the effect of surgery after operation The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Conditions

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Diabetic Retinopathy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Anti-VEGF treatment group

Visual acuity and center thickness of the macula

Group Type EXPERIMENTAL

Ranibizumab Injection [Lucentis]

Intervention Type DRUG

The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Inner limiting membrane stripping group

Visual acuity and center thickness of the macula

Group Type EXPERIMENTAL

Inner limiting membrane stripping

Intervention Type PROCEDURE

The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Glucocorticoid treatment group

Visual acuity and center thickness of the macula

Group Type EXPERIMENTAL

Dexamethasone intravitreal implant

Intervention Type DRUG

The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Interventions

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Ranibizumab Injection [Lucentis]

The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Intervention Type DRUG

Inner limiting membrane stripping

The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Intervention Type PROCEDURE

Dexamethasone intravitreal implant

The visual acuity and the thickness of the center of the macula were reviewed at 1 day, 7 days, 1 month, 3 months, and 6 months after the operation to compare the effect of the operation, and observe the cornea, anterior chamber, vitreous cavity, and intraocular pressure.

Intervention Type DRUG

Other Intervention Names

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Lucentis Dexamethasone Implants

Eligibility Criteria

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Inclusion Criteria

* PDR patients with severe vitreous hemorrhage who cannot collect oct images and need vitrectomy
* Type 2 diabetes, aged 18\~80 years old
* Good blood sugar control (glycated hemoglobin \<8.3%)
* Sign the informed consent form voluntarily, and are willing and able to follow the outpatient visits and research procedures within the time specified in the trial

Exclusion Criteria

* Exclude severe infections of conjunctiva, cornea, and sclera
* Combined with other retinal vascular diseases such as retinal vein occlusion
* Cardiorenal insufficiency
* Myocardial infarction or stroke occurred within 6 months.
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Affiliated Hospital of Nantong University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Rongrong Zhu, master

Role: PRINCIPAL_INVESTIGATOR

Affiliated Hospital of Nantong University

Locations

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Affiliated Hospital of Nantong University

Nantong, Jiangsu, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Rongrong Zhu, Master

Role: CONTACT

13809089545

Zhuojun Xie, Bachelor

Role: CONTACT

19502558036

Facility Contacts

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Rongrong Zhu, Master

Role: primary

13809089545

Jian Zhu, Bachelor

Role: backup

18860975286

Other Identifiers

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MSZ20180

Identifier Type: -

Identifier Source: org_study_id

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