AzTrials
AzTrials

Epiretinal MembraneNCT05232539

Efficiency of Intraoperative Optical Coherence Tomography (iOCT)

A study testing Intraoperative Optical Coherence Tomography (iOCT) in people with Epiretinal Membrane and Glaucoma, run by Somich, s.r.o. at 1 site in Czechia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

Efficiency of Intraoperative Optical Coherence Tomography (iOCT) Hypothesis: The use of iOCT during surgery offers the advantage of a new view of the operating field, theoretically allows more precise performance and can also change decision-making mechanisms during surgery with more precise visual control of some… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Epiretinal Membrane, Glaucoma, Cornea
What is being tested?
Intraoperative Optical Coherence Tomography (iOCT)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2 participants
Where
1 siteCzechia
Study dates
May 2022to 31 Dec 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Clinical diagnosis of Bullous keratopathy and Fuchs dystrophy of the cornea indicated for surgical treatment DMEK
  • Clinical diagnosis of Primary open angle glaucoma and Normotension glaucoma indicated for surgical treatment Deep sclerectomy with implantation of subchoroidal implant Esnoper Clip
  • Clinical diagnosis of Epiretinal membrane indicated for surgical treatment Pars plana vitrectomy with epiretinal membrane peeling

Who cannot join

  • If it is not possible to take an iOCT image
  • Uveitis in anamnestic history
  • Other ocular diagnosis deteriorating visual acuity (eg. age related macular degeneration, diabetic macular edema, macular scars)

Trial locations and contacts

1 site in 1 country.

Tomas Benda, MD, FEBO contact

00420777618993

tomas.benda@post.cz

Pavel Studeny, MD, PD, PhD contact

00420775555342

studenypavel@seznam.cz

Czechia1 site, 1 recruiting
  • Somich

    Karlovy Vary, 36006

    Pavel Studeny, MD, 00420775555342, studenypavel@seznam.cz

    Tomas Benda, MD

    Recruiting

Other trials in Czechia

About this study

Official title: Efficiency of Intraoperative Optical Coherence Tomography (iOCT) in Eye Surgery

Efficiency of Intraoperative Optical Coherence Tomography (iOCT)

Hypothesis:

Read more

The use of iOCT during surgery offers the advantage of a new view of the operating field, theoretically allows more precise performance and can also change decision-making mechanisms during surgery with more precise visual control of some surgical steps (incision adaptation, differentiation of healthy and pathological tissue, placement of the implant, graft, etc.) The disadvantage is the prolongation of the operation and thus the theoretical increase in possible complications related to the operation (bleeding, infection, patient subjective problems - pain, restlessness, poorer cooperation and the resulting other possible risks, such as unexpected patient movement).

Aim:

Determining the effectiveness of iOCT use in different types of eye surgery. Evaluation of advantages and disadvantages of using iOCT.

Read the detailed description

Methods:

The effectiveness of iOCT use will be monitored in three types of microsurgical eye surgery:

  1. Lamellar corneal transplantation type DMEK
  2. Antiglaucoma surgery - Deep sclerectomy with implantation of subchoroidal implant Esnoper Clip
  3. Pars plana vitrectomy with epiretinal membrane peeling

For each type of the surgery, the investigators expect to perform about 50 surgeries, individual procedures will be randomly divided into 2 subgroups of 25 patients with and without the use of iOCT during the operation.

Perioperatively, the surgeon will record the number of complications, the net time of the operation and impressions using a questionnaire. The patient will evaluate the subjective perception of the operation using a questionnaire (pain, pressure, subjectively perceived duration of the operation).

The investigators will evaluate the clinical outcome of the operation postoperatively at intervals of 1 week, 1, 3 and 6 months - corrected and uncorrected visual acuity, intraocular pressure, inflammation reaction (SUN - standardization of uveitis nomenclature) and possible postoperative complications in all groups.

In each group the investigators will also specifically evaluate the achievement of the planned surgical goal in the group:

  1. attachment of the lamella (respectively% area of lamella ablation) on the slit lamp, number of necessary reoperations - rebubbling, and density of the transplanted endothelium using the endothelial microscope
  2. correct localization of the Esnoper Clip implant and confirmation of its functionality (decentration of the implant in millimeters, functionality expressed by the size of filtration into the subcleral and suprachoroidal space (using stationary OCT), the amount of postoperative antiglaucoma therapy required).
  3. Frequency of epiretinal membrane residues (using stationary OCT)
  4. Histological verification of tissues identified on the basis of iOCT during surgery (in Deep sclerectomy and Pars plana vitrectomy patients)
Being tested
Intraoperative Optical Coherence Tomography (iOCT)
Keywords
Intraoperative OCT
Medical subject headings
Epiretinal Membrane, Glaucoma, Corneal Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Intraoperative Optical Coherence Tomography (iOCT)Device

    The use of iOCT during surgery offers the advantage of a new view of the operating field, theoretically allows more precise performance and can also change decision-making mechanisms during surgery with more precise visual control of some surgical steps.

Study groups in NCT05232539
Study groupRoleWhat they receive
Lamellar corneal transplantation type DMEKActive comparator50 operations, procedure will be randomly divided into 2 subgroups of 25 patients with and without the use of iOCT during the operation.
Receives: Device: Intraoperative Optical Coherence Tomography (iOCT)
Deep sclerectomy with implantation of subchoroidal implant Esnoper ClipActive comparator50 operations, procedure will be randomly divided into 2 subgroups of 25 patients with and without the use of iOCT during the operation.
Receives: Device: Intraoperative Optical Coherence Tomography (iOCT)
Pars plana vitrectomy with epiretinal membrane peelingActive comparator50 operations, procedure will be randomly divided into 2 subgroups of 25 patients with and without the use of iOCT during the operation.
Receives: Device: Intraoperative Optical Coherence Tomography (iOCT)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Attachment of the transplanted DMEK lamella.

    The investigators will evaluate the attachment of the transplanted DMEK lamella (respectively % area of lamella ablation) on the slit lamp.

    Measured: At the first week postoperatively.

  2. Attachment of the transplanted DMEK lamella.

    The investigators will evaluate the attachment of the transplanted DMEK lamella (respectively % area of lamella ablation) on the slit lamp.

    Measured: 1 month postoperatively

  3. Attachment of the transplanted DMEK lamella.

    The investigators will evaluate the attachment of the transplanted DMEK lamella (respectively % area of lamella ablation) on the slit lamp.

    Measured: 3 months postoperatively

  4. Attachment of the transplanted DMEK lamella.

    The investigators will evaluate the attachment of the transplanted DMEK lamella (respectively % area of lamella ablation) on the slit lamp.

    Measured: 6 months postoperatively

  5. Density of the transplanted endothelium cells.

    The investigators will evaluate the density of the transplanted endothelium cells using the endothelial microscope.

    Measured: At the first week postoperatively.

  6. Density of the transplanted endothelium cells.

    The investigators will evaluate the density of the transplanted endothelium cells using the endothelial microscope.

    Measured: 1 month postoperatively

  7. Density of the transplanted endothelium cells.

    The investigators will evaluate the density of the transplanted endothelium cells using the endothelial microscope.

    Measured: 3 months postoperatively

  8. Density of the transplanted endothelium cells.

    The investigators will evaluate the density of the transplanted endothelium cells using the endothelial microscope.

    Measured: 6 months postoperatively

  9. Correct localization of the Esnoper Clip implant and confirmation of its functionality.

    The investigators will evaluate correct localization of the Esnoper Clip implant and confirmation of its functionality (decentration of the implant in millimeters, functionality expressed by the size of filtration into the subcleral and suprachoroidal space) using stationary OCT.

    Measured: At the first week postoperatively.

  10. Correct localization of the Esnoper Clip implant and confirmation of its functionality.

    The investigators will evaluate correct localization of the Esnoper Clip implant and confirmation of its functionality (decentration of the implant in millimeters, functionality expressed by the size of filtration into the subcleral and suprachoroidal space) using stationary OCT.

    Measured: 1 month postoperatively

  11. Correct localization of the Esnoper Clip implant and confirmation of its functionality.

    The investigators will evaluate correct localization of the Esnoper Clip implant and confirmation of its functionality (decentration of the implant in millimeters, functionality expressed by the size of filtration into the subcleral and suprachoroidal space) using stationary OCT.

    Measured: 3 months postoperatively

  12. Correct localization of the Esnoper Clip implant and confirmation of its functionality.

    The investigators will evaluate correct localization of the Esnoper Clip implant and confirmation of its functionality (decentration of the implant in millimeters, functionality expressed by the size of filtration into the subcleral and suprachoroidal space) using stationary OCT.

    Measured: 6 months postoperatively

  13. Frequency of epiretinal membrane residues.

    The investigators will evaluate the frequency of epiretinal membrane residues using stationary OCT.

    Measured: At the first week postoperatively.

  14. Histological verification of tissues identified on the basis of iOCT during surgery.

    The investigators in cooperation with pathologist will histologicaly verificate tissues identified on the basis of iOCT during surgery in Deep sclerectomy and Pars plana vitrectomy patients.

    Measured: At the first week postoperatively.

Secondary outcomes (12)
  1. Inflammation reaction

    The investigators will evaluate intraocular postoperative inflammation reaction using the SUN - standardization of uveitis nomenclature

    Measured: At the first week postoperatively.

  2. Inflammation reaction

    The investigators will evaluate intraocular postoperative inflammation reaction using the SUN - standardization of uveitis nomenclature

    Measured: 1 month postoperatively

  3. Inflammation reaction

    The investigators will evaluate intraocular postoperative inflammation reaction using the SUN - standardization of uveitis nomenclature

    Measured: 3 months postoperatively

  4. Inflammation reaction

    The investigators will evaluate intraocular postoperative inflammation reaction using the SUN - standardization of uveitis nomenclature

    Measured: 6 months postoperatively

  5. Visual acuity

    The investigators will evaluate corrected and uncorrected visual acuity on LogMAR chart.

    Measured: At the first week postoperatively.

  6. Visual acuity

    The investigators will evaluate corrected and uncorrected visual acuity on LogMAR chart.

    Measured: 1 month postoperatively

  7. Visual acuity

    The investigators will evaluate corrected and uncorrected visual acuity on LogMAR chart.

    Measured: 3 months postoperatively

  8. Visual acuity

    The investigators will evaluate corrected and uncorrected visual acuity on LogMAR chart.

    Measured: 6 months postoperatively

  9. Intraocular pressure

    The investigators will evaluate intraocular pressure using non-contact tonometry in mmHg.

    Measured: At the first week postoperatively.

  10. Intraocular pressure

    The investigators will evaluate intraocular pressure using non-contact tonometry in mmHg.

    Measured: 1 month postoperatively

  11. Intraocular pressure

    The investigators will evaluate intraocular pressure using non-contact tonometry in mmHg.

    Measured: 3 months postoperatively

  12. Intraocular pressure

    The investigators will evaluate intraocular pressure using non-contact tonometry in mmHg.

    Measured: 6 months postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Feb 2022
  2. Study startMay 2022 (estimated)
  3. Primary completionDec 2023 (estimated)
  4. Study completion31 Dec 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Device feasibility
Allocation
Randomised
Intervention model
Parallel groups
Model description
A prospective, randomized, comparative study conducted at the SOMICH Eye Center s.r.o. in Karlovy Vary, comparing the effectiveness and safety of the use of Intraoperative Optical Coherence Tomography (iOCT)
Masking
None (open label)
Enrolment
2 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05232539
Sponsor's protocol ID
IOCT2022
Status last verified
May 2022
First submitted
15 Jan 2022
Last updated
9 May 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Intraoperative Optical Coherence Tomography (iOCT) in people with Epiretinal Membrane and Glaucoma, run by Somich, s.r.o. at 1 site in Czechia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 9 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Czechia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Tomas Benda, MD, FEBO (00420777618993, tomas.benda@post.cz), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Attachment of the transplanted DMEK lamella. (time frame: At the first week postoperatively.). The study lists 14 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 May 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in