Clinical Study of Translocated Internal Limiting Membrane Flap Reposition for the Treatment of Idiopathic Macular Hole

NCT ID: NCT06063005

Last Updated: 2023-10-30

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

76 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-01

Study Completion Date

2025-06-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The main objective of this study is to evaluate the therapeutic effectiveness of the internal limiting membrane (ILM) peeling and translocation surgery compared to the conventional surgical approach for treating large idiopathic macular hole (IMH) through a well-designed prospective randomized controlled clinical trial. This study aims to compare the new surgical approach to the conventional approach in terms of improving visual function, promoting macular retinal anatomical healing, and enhancing patients' quality of life. By conducting this prospective clinical trial, establishing a database, and generating clinical reports and evidence-based medicine on the therapeutic efficacy of the ILM peeling and translocation surgery for large IMH.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Macular Holes

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Translocation

Group Type EXPERIMENTAL

Translocation ILM Flap

Intervention Type PROCEDURE

After vitrectomy, the ILM was dissected from the macula to the vascular arch, and the retina in the fissure area was fully released to make an MH-centered, approximately 2DD-square, ILM flap with a tip (approximately 500μm wide) above; the ILM flap was transposed approximately 25-30 degrees along the tip to the inferior temporal area with the assistance of heavy water, and a total of 1ml of perfluorodecalin fluid (heavy water) was injected to cover the MH area with the ILM flap, and the original ILM defect area corresponding to the MH was transposed to the outside of the MH. The heavy water is replaced by liquid/gas exchange. Ophthalmic 13% perfluoropropane gas (AL.CHI.MI.A. Srl) was chosen as the postoperative intraocular filling.

Peeling

Group Type ACTIVE_COMPARATOR

ILM Peeling

Intervention Type PROCEDURE

After vitrectomy, internal limiting membrane peeling up to the vascular arcade, thorough loosening of the macular hole area of the retina, and fluid/gas exchange. An eye-specific 13% perfluoropropane gas (AL.CHI.MI.A. Srl) was chosen for intraocular tamponade after the operation.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Translocation ILM Flap

After vitrectomy, the ILM was dissected from the macula to the vascular arch, and the retina in the fissure area was fully released to make an MH-centered, approximately 2DD-square, ILM flap with a tip (approximately 500μm wide) above; the ILM flap was transposed approximately 25-30 degrees along the tip to the inferior temporal area with the assistance of heavy water, and a total of 1ml of perfluorodecalin fluid (heavy water) was injected to cover the MH area with the ILM flap, and the original ILM defect area corresponding to the MH was transposed to the outside of the MH. The heavy water is replaced by liquid/gas exchange. Ophthalmic 13% perfluoropropane gas (AL.CHI.MI.A. Srl) was chosen as the postoperative intraocular filling.

Intervention Type PROCEDURE

ILM Peeling

After vitrectomy, internal limiting membrane peeling up to the vascular arcade, thorough loosening of the macular hole area of the retina, and fluid/gas exchange. An eye-specific 13% perfluoropropane gas (AL.CHI.MI.A. Srl) was chosen for intraocular tamponade after the operation.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Participants who can understand the purpose of this clinical trial, volunteer to participate, sign an informed consent form, and can complete the postoperative follow-up on time.
* Participants diagnosed with idiopathic macular hole (IMH).
* Based on OCT scans, the minimum horizontal diameter of the macular hole is \>500 and \<900 µm.
* Participants with an axial length \<26.0mm and a myopic degree lower than 6D.
* For participants with bilateral macular holes, the eye with a larger hole diameter will be included.

Exclusion Criteria

* Patients with the following retinal disorders: age-related macular degeneration, epi-macular membrane neovascularization, non-macular retinal tears, lesions of the retinal pigment epithelium and choroid, inherited or degenerative retinal diseases, optic neuropathies, retinal vascular diseases; patients with large macular holes accompanied by retinal detachment;
* Patients with high myopia (axial length ≥ 26.0mm and myopia exceeding 6D);
* Patients with a history of ocular trauma or retinal laser treatment;
* Patients with glaucoma, ocular infections, inflammations, tumors, corneal diseases, or amblyopia;
* Patients with contraindications to vitrectomy;
* Patients with severe or unstable systemic diseases;
* Patients with a fasting blood glucose level ≥ 9mmol/L before surgery;
* Patients who participated in other clinical trials involving drugs or medical devices within 30 days prior to screening;
* Patients with a history of intraocular surgery within 3 months prior to screening;
* Patients with reduced visual function or vision in the contralateral eye as determined by the investigator;
* Patients who are not considered suitable for enrollment by the investigator for other reasons.
Minimum Eligible Age

55 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Shanghai Municipal Science and Technology Commission

OTHER_GOV

Sponsor Role collaborator

Xinhua Hospital, Shanghai Jiao Tong University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Peiquan Zhao

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Peiquan Zhao, Dr.

Role: STUDY_CHAIR

Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine Shanghai

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine

Shanghai, , China

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

China

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Peiquan Zhao, Dr.

Role: CONTACT

0086 13311620396

Jiao Lyu, Dr.

Role: CONTACT

0086 13564910954

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Peiquan Zhao, Ph.D.

Role: primary

+86 13311620396

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

XH-22-084

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.