NCT06316388

Brief Summary

  1. 1.assessment the outcomes of vitrectomy on retinal function by mf-ERG (multifocal electroretinogram) and anatomy by OCT (optical coherence tomography) in patients with tractional diabetic macular edema (TDME) .
  2. 2.To correlate the postoperative corrected distance visual acuity (CDVA) with the mf-ERG and OCT findings following vitrectomy surgery for TDME.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
21

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Mar 2024

Shorter than P25 for all trials

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 9, 2024

Completed
1 day until next milestone

Study Start

First participant enrolled

March 10, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 18, 2024

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 10, 2025

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 11, 2025

Completed
Last Updated

March 18, 2024

Status Verified

March 1, 2024

Enrollment Period

1 year

First QC Date

March 9, 2024

Last Update Submit

March 14, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • assessment the outcomes of vitrectomy on retinal function in patients with tractional diabetic macular edema

    assessment the outcomes of vitrectomy on retinal function by mf-ERG (multifocal electroretinogram) in patients with tractional diabetic macular edema

    baseline

  • assessment the outcomes of vitrectomy on retinal anatomy in patients with tractional diabetic macular edema

    assessment the outcomes of vitrectomy on retinal anatomy by OCT (optical coherence tomography) in patients with tractional diabetic macular edema

    Baseline

Secondary Outcomes (1)

  • correlation CDVA with mf-ERG and OCT finding

    baseline

Interventions

vitrectomyPROCEDURE

pars plana vitrectomy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

eyes with tractional diabetic macular edema

You may qualify if:

  • Age ≥18 years; type 1 or 2 diabetes
  • TDME as the indication for vitrectomy; central foveal thickness (CFT) ≥300 µm as measured by spectral-domain optical coherence tomography (SD-OCT) , We defined VMIA on OCT as ERM, anomalous vitreomacular adhesions, or both , ), and possible visual acuity impairment attributed to foveal thickening due to DME.

You may not qualify if:

  • A history of other retinal diseases; or active ocular inflammation or infection or glaucoma .
  • Eyes with macular edema from etiologies other than diabetes
  • Dense refractive media opacity before and after surgery, such as dense cataract, vitreous hemorrhage which can conceal fundus visualization and OCT measurements
  • Central retinal ischemia detected by intravenous fluorescein angiograms.
  • A history of vitrectomy
  • A visual acuity worse than 1\\60 and the duration of tractional ERM is more than 12 months.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (11)

  • Lee R, Wong TY, Sabanayagam C. Epidemiology of diabetic retinopathy, diabetic macular edema and related vision loss. Eye Vis (Lond). 2015 Sep 30;2:17. doi: 10.1186/s40662-015-0026-2. eCollection 2015.

    PMID: 26605370BACKGROUND
  • Yau JW, Rogers SL, Kawasaki R, Lamoureux EL, Kowalski JW, Bek T, Chen SJ, Dekker JM, Fletcher A, Grauslund J, Haffner S, Hamman RF, Ikram MK, Kayama T, Klein BE, Klein R, Krishnaiah S, Mayurasakorn K, O'Hare JP, Orchard TJ, Porta M, Rema M, Roy MS, Sharma T, Shaw J, Taylor H, Tielsch JM, Varma R, Wang JJ, Wang N, West S, Xu L, Yasuda M, Zhang X, Mitchell P, Wong TY; Meta-Analysis for Eye Disease (META-EYE) Study Group. Global prevalence and major risk factors of diabetic retinopathy. Diabetes Care. 2012 Mar;35(3):556-64. doi: 10.2337/dc11-1909. Epub 2012 Feb 1.

    PMID: 22301125BACKGROUND
  • Romero-Aroca P, Baget-Bernaldiz M, Pareja-Rios A, Lopez-Galvez M, Navarro-Gil R, Verges R. Diabetic Macular Edema Pathophysiology: Vasogenic versus Inflammatory. J Diabetes Res. 2016;2016:2156273. doi: 10.1155/2016/2156273. Epub 2016 Sep 28.

    PMID: 27761468BACKGROUND
  • Lewis H, Abrams GW, Blumenkranz MS, Campo RV. Vitrectomy for diabetic macular traction and edema associated with posterior hyaloidal traction. Ophthalmology. 1992 May;99(5):753-9. doi: 10.1016/s0161-6420(92)31901-3.

    PMID: 1594222BACKGROUND
  • Agarwal D, Gelman R, Prospero Ponce C, Stevenson W, Christoforidis JB. The Vitreomacular Interface in Diabetic Retinopathy. J Ophthalmol. 2015;2015:392983. doi: 10.1155/2015/392983. Epub 2015 Sep 3.

    PMID: 26425349BACKGROUND
  • Duker JS, Kaiser PK, Binder S, de Smet MD, Gaudric A, Reichel E, Sadda SR, Sebag J, Spaide RF, Stalmans P. The International Vitreomacular Traction Study Group classification of vitreomacular adhesion, traction, and macular hole. Ophthalmology. 2013 Dec;120(12):2611-2619. doi: 10.1016/j.ophtha.2013.07.042. Epub 2013 Sep 17.

    PMID: 24053995BACKGROUND
  • Yamamoto T, Akabane N, Takeuchi S. Vitrectomy for diabetic macular edema: the role of posterior vitreous detachment and epimacular membrane. Am J Ophthalmol. 2001 Sep;132(3):369-77. doi: 10.1016/s0002-9394(01)01050-9.

    PMID: 11530050BACKGROUND
  • Massin P, Audren F, Haouchine B, Erginay A, Bergmann JF, Benosman R, Caulin C, Gaudric A. Intravitreal triamcinolone acetonide for diabetic diffuse macular edema: preliminary results of a prospective controlled trial. Ophthalmology. 2004 Feb;111(2):218-24; discussion 224-5. doi: 10.1016/j.ophtha.2003.05.037.

    PMID: 15019365BACKGROUND
  • Dowler JG. Laser management of diabetic retinopathy. J R Soc Med. 2003 Jun;96(6):277-9. doi: 10.1177/014107680309600605. No abstract available.

    PMID: 12782691BACKGROUND
  • Khattab AAA, Ahmed MM, Hammed AH. Pars plana vitrectomy for tractional diabetic macular edema with or without internal limiting membrane peeling. Med Hypothesis Discov Innov Ophthalmol. 2022 Dec 3;11(3):110-118. doi: 10.51329/mehdiophthal1454. eCollection 2022 Fall.

    PMID: 37641643BACKGROUND
  • Marmor MF, Hood DC, Keating D, Kondo M, Seeliger MW, Miyake Y; International Society for Clinical Electrophysiology of Vision. Guidelines for basic multifocal electroretinography (mfERG). Doc Ophthalmol. 2003 Mar;106(2):105-15. doi: 10.1023/a:1022591317907. No abstract available.

    PMID: 12678274BACKGROUND

MeSH Terms

Interventions

Vitrectomy

Intervention Hierarchy (Ancestors)

Ophthalmologic Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • ehab wasfi, prof

    Assiut University

    STUDY CHAIR

Central Study Contacts

rehab azzam, master

CONTACT

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principle investigator

Study Record Dates

First Submitted

March 9, 2024

First Posted

March 18, 2024

Study Start

March 10, 2024

Primary Completion

March 10, 2025

Study Completion

March 11, 2025

Last Updated

March 18, 2024

Record last verified: 2024-03