NCT00302328

Brief Summary

The project is a randomized clinical trial with a follow up time of 12 months comparing the effects of surgical treatment of idiopathic macular holes. Patients are randomized to vitrectomy alone, vitrectomy plus indocyanine green (ICG) assisted inner limiting membrane ( ILM) peeling or vitrectomy plus trypan blue (tb) assisted ILM peeling. At baseline patients are characterized using early treatment diabetic retinopathy study (ETDRS) visual charts, tests of aniseikonia, optical coherence tomography 3 (OCT3), visual field and fundus photography. Per- and postoperative complications are registered. Data analyses will help clarify the effect of ILM peeling on hole closure and visual acuity. Comparing results after ICG- and tb assisted ILM peeling will help clarify the topic of a toxic effect on retinal cells after staining and peeling of the ILM. Changes in intraretinal morphology before and after dye-assisted ILM peeling will be studied using OCT3 imaging and the patients' subjective opinion on the surgical results will be analyzed using quality of life questionnaires and metamorphopsia tests.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
78

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2005

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

August 1, 2005

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

March 13, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 14, 2006

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2008

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2009

Completed
5.3 years until next milestone

Results Posted

Study results publicly available

April 16, 2014

Completed
Last Updated

April 16, 2014

Status Verified

March 1, 2014

Enrollment Period

2.4 years

First QC Date

March 13, 2006

Results QC Date

October 4, 2012

Last Update Submit

March 13, 2014

Conditions

Outcome Measures

Primary Outcomes (1)

  • Visual Acuity (ETDRS Letters)

    Visual acuity measured as the number of ETDRS letters at last follow-up

    Visual acuity at 12 months

Secondary Outcomes (2)

  • Anatomic Success

    macular hole closure at 12 months

  • Visual Field Defects

    6 months

Study Arms (3)

macular hole operation no peeling

NO INTERVENTION

Macular hole operation ICG peeling

ACTIVE COMPARATOR
Procedure: macular hole operation

Macular hole operation TB peeling

EXPERIMENTAL
Procedure: macular hole operation

Interventions

macular hole surgery with either no peeling, indocyanine green (ICG) assisted peeling or trypan blue (tb) peeling

Macular hole operation ICG peelingMacular hole operation TB peeling

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Idiopathic macular hele stage 2 or 3.
  • Duration of Symptoms ≤ 12 months.
  • Visual acuity ≥ 34 ETDRS letters.
  • Intraocular pressure ≤ 23 mmHg.
  • Informed consent.

You may not qualify if:

  • Previous macular hole in project eye
  • Macular pucker worse than a cellophane macular reflex.
  • Previous surgery or disease in the eye affecting retinal function.
  • Systemic disease affection vision including diabetes mellitus with level of retinopathy ≥ 14a.
  • Amblyopia i project eye.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Ophthalmology, Glostrup Hospital

Copenhagen, DK-2600, Denmark

Location

Related Publications (5)

  • Christensen UC. Value of internal limiting membrane peeling in surgery for idiopathic macular hole and the correlation between function and retinal morphology. Acta Ophthalmol. 2009 Dec;87 Thesis 2:1-23. doi: 10.1111/j.1755-3768.2009.01777.x.

  • Christensen UC, Kroyer K, Sander B, Jorgensen TM, Larsen M, la Cour M. Macular morphology and visual acuity after macular hole surgery with or without internal limiting membrane peeling. Br J Ophthalmol. 2010 Jan;94(1):41-7. doi: 10.1136/bjo.2009.159582. Epub 2009 Aug 18.

  • Kroyer K, Christensen U, la Cour M, Larsen M. Metamorphopsia assessment before and after vitrectomy for macular hole. Invest Ophthalmol Vis Sci. 2009 Dec;50(12):5511-5. doi: 10.1167/iovs.09-3530. Epub 2009 Jul 2.

  • Christensen UC, Kroyer K, Sander B, Larsen M, Henning V, Villumsen J, la Cour M. Value of internal limiting membrane peeling in surgery for idiopathic macular hole stage 2 and 3: a randomised clinical trial. Br J Ophthalmol. 2009 Aug;93(8):1005-15. doi: 10.1136/bjo.2008.151266. Epub 2008 Nov 21.

  • Kroyer K, Christensen U, Larsen M, la Cour M. Quantification of metamorphopsia in patients with macular hole. Invest Ophthalmol Vis Sci. 2008 Sep;49(9):3741-6. doi: 10.1167/iovs.07-1452. Epub 2008 Apr 30.

Limitations and Caveats

non-closure of macular hole after surgical procedure in 18 patients led to re-operation. Data included in main published papers.

Results Point of Contact

Title
Ulrik Christensen
Organization
Glostrup Hospital

Study Officials

  • Morten la Cour, MD,DMSc,EBOD

    Glostrup Hospital, Department of Ophthalmology

    STUDY DIRECTOR
  • Michael Larsen, MD, DMSc

    Glostrup Hospital, Department of Ophthalmology

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

March 13, 2006

First Posted

March 14, 2006

Study Start

August 1, 2005

Primary Completion

January 1, 2008

Study Completion

January 1, 2009

Last Updated

April 16, 2014

Results First Posted

April 16, 2014

Record last verified: 2014-03

Locations