Rhegmatogenous Retinal Detachment of Both Eyes (Diagnosis)RDNCT04288440
Characters of Epiretinal Membranes in Patients With Previous Vitrectomy for Retinal Detachment
A study testing Surgery and Vitrectomy machine in people with Rhegmatogenous Retinal Detachment of Both Eyes (Diagnosis), run by Tanta University at 1 site in Egypt.
Trial summary
31 patients were included in the study,15 cases with ERM in silicone filled eyes and 16 eyes with idiopathic ERM Read more about this study
- Who is it for?
- Ages 42 to 64 yearsHealthy volunteers can take part
- Conditions the study is for
- Rhegmatogenous Retinal Detachment of Both Eyes (Diagnosis)
- What is being tested?
- Surgery and Vitrectomy machine
- Type of treatment
- Medical device, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 31 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Jan 2019to 1 Aug 2019
- 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 42 to 64 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Fifteen cases had pars plana vitrectomy for rhegmatogenous retinal detachment nine months earlier with ERM detected by OCT one day before silicone oil removal.
- The other 16 cases matched for age and gender with idiopathic ERM and were included as a control. Histopathological features of the ERMs were compared between the two groups.
- -
- Exclusion Criteria:the investigator excluded 1-patients with previous intraocular surgery (except cataract surgery) for the control group.
- 2- Diabetes mellitus/diabetic retinopathy. 3-Coincident retinal pathology as choroidal neovascular membrane and age related macular degeneration.
- 4-previous laser photocoagulation, intravitreal injection of Triamcinolone Acetonide or antivascular endothelial growth factor (anti-VEGF) agents.
Show all 9Show fewer
- 5- prior intra-ocular inflammation, retinal degenerations.
- 6-Neovascularization or rubeosis and vascular disorders e.g. retinal vein or artery occlusion.
- -
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Pathological Features of Epiretinal Membranes in Silicone Filled Eyes
31 patients were included in the study,15 cases with ERM in silicone filled eyes and 16 eyes with idiopathic ERM
Read the detailed description
This is a prospective study that included 31 patients and was performed in Tanta University Eye Hospital in cooperation with the Pathology Department, Tanta University, between January 2018 and June 2019. The approval of the ethical committee of the Faculty of Medicine in Tanta University was obtained, and the study was conducted in accordance with the 1964 Helsinki Declaration and its later amendment. A detailed informed written consent was signed by all study participants. The research is not funded by the university or any organization or entity.
Fifteen cases had pars plana vitrectomy for rhegmatogenous retinal detachment nine months earlier with ERM detected by OCT one day before silicone oil removal. The other 16 cases matched for age and gender with idiopathic ERM and were included as a control. Histopathological features of the ERMs were compared between the two groups.
All patients have undergone complete ophthalmic evaluation including: best corrected visual acuity (BCVA) by Snellen chart that was converted to log MAR for statistical analysis, anterior segment examination by slit lamp, posterior segment examination by slit lamp bimicroscopy using +78 D lens and indirect Ophthalmoscopy, and Spectral domain optical coherence tomography (SD-OCT) (Spectralis; Heidelberg Engineering,Heidelberg, Germany) was performed for all patients before surgery.
The investigators excluded patients with previous intraocular surgery (except cataract surgery) for the control group, diabetes mellitus/diabetic retinopathy, coincident retinal pathology as choroidal neovascular membrane and age related macular degeneration, previous laser photocoagulation, intravitreal injection of Triamcinolone Acetonide or antivascular endothelial growth factor (anti-VEGF) agents, prior intra-ocular inflammation, retinal degenerations, neovascularization or rubeosis and vascular disorders e.g. retinal vein or artery occlusion.
- Being tested
- Surgery, Vitrectomy machine
- Medical subject headings
- Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SurgeryProcedure or surgery
Also called Invasive procedure
Removal of epiretinal membrane and ILM
Vitrectomy machineDevice
Pars plana vitrectomy
| Study group | Role | What they receive |
|---|---|---|
| Silicone filled eyes | Active comparator | Eyes filled with silicone oil Receives: Procedure: Surgery; Device: Vitrectomy machine |
| Idiopathic ERM | Active comparator | Eyes not filled with silicone oil Receives: Procedure: Surgery; Device: Vitrectomy machine |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of GFAP and CD cells in idiopathic and silicone oil ERM
Percentage of glial fibrillary acid protein positive cells and number of cluster of differentiation cells in idiopathic and silicone oil ERM
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Feb 2020
- Study start1 Jan 2019
- Primary completion1 Jul 2019
- Study completion1 Aug 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Rhegmatogenous Retinal Detachment of Both Eyes (Diagnosis)Studies of the same condition, open and under way.
- More trials run by Tanta UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 31 participants (actual)
Sponsor and investigators
- Lead sponsor
- Tanta University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sharif Yousef El Emam, Tanta University
- Investigators
- Heba M Shafik, MD, Study chair, Tanta University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04288440
- Sponsor's protocol ID
- IAA
- Other IDs
- Faculty of medicine
- Acronym
- RD
- Status last verified
- Feb 2020
- First submitted
- 23 Feb 2020
- Last updated
- 28 Feb 2020
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Abrams GW, Azen SP, McCuen BW 2nd, Flynn HW Jr, Lai MY, Ryan SJ. Vitrectomy with silicone oil or long-acting gas in eyes with severe proliferative vitreoretinopathy: results of additional and long-term follow-up. Silicone Study report 11. Arch Ophthalmol. 1997 Mar;115(3):335-44. doi: 10.1001/archopht.1997.01100150337005.
PubMed 9076205
Study at a glance
From the registry record, last updated by the sponsor on 28 Feb 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Pathological Features of Epiretinal Membranes in Silicone Filled Eyes
- ClinicalTrials.gov ID
- NCT04288440
- Acronym / sponsor ID
- RD / IAA
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 31 participants (actual)
- Lead sponsor
- Tanta UniversityUniversity, hospital or other
- Study start
- 1 Jan 2019 (actual)
- Primary completion
- 1 Jul 2019 (actual)
- Study completion
- 1 Aug 2019 (actual)
- First posted
- 28 Feb 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
31 patients were included in the study,15 cases with ERM in silicone filled eyes and 16 eyes with idiopathic ERM
Detailed description
This is a prospective study that included 31 patients and was performed in Tanta University Eye Hospital in cooperation with the Pathology Department, Tanta University, between January 2018 and June 2019. The approval of the ethical committee of the Faculty of Medicine in Tanta University was obtained, and the study was conducted in accordance with the 1964 Helsinki Declaration and its later amendment. A detailed informed written consent was signed by all study participants. The research is not funded by the university or any organization or entity.
Fifteen cases had pars plana vitrectomy for rhegmatogenous retinal detachment nine months earlier with ERM detected by OCT one day before silicone oil removal. The other 16 cases matched for age and gender with idiopathic ERM and were included as a control. Histopathological features of the ERMs were compared between the two groups.
All patients have undergone complete ophthalmic evaluation including: best corrected visual acuity (BCVA) by Snellen chart that was converted to log MAR for statistical analysis, anterior segment examination by slit lamp, posterior segment examination by slit lamp bimicroscopy using +78 D lens and indirect Ophthalmoscopy, and Spectral domain optical coherence tomography (SD-OCT) (Spectralis; Heidelberg Engineering,Heidelberg, Germany) was performed for all patients before surgery.
The investigators excluded patients with previous intraocular surgery (except cataract surgery) for the control group, diabetes mellitus/diabetic retinopathy, coincident retinal pathology as choroidal neovascular membrane and age related macular degeneration, previous laser photocoagulation, intravitreal injection of Triamcinolone Acetonide or antivascular endothelial growth factor (anti-VEGF) agents, prior intra-ocular inflammation, retinal degenerations, neovascularization or rubeosis and vascular disorders e.g. retinal vein or artery occlusion.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Silicone filled eyes | Active comparator | Procedure: Surgery, Device: Vitrectomy machineEyes filled with silicone oil |
| Idiopathic ERM | Active comparator | Procedure: Surgery, Device: Vitrectomy machineEyes not filled with silicone oil |
Who may qualify
- Ages
- 42 to 64 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (9 listed)
- Fifteen cases had pars plana vitrectomy for rhegmatogenous retinal detachment nine months earlier with ERM detected by OCT one day before silicone oil removal.
- The other 16 cases matched for age and gender with idiopathic ERM and were included as a control. Histopathological features of the ERMs were compared between the two groups.
- -
- Exclusion Criteria:the investigator excluded 1-patients with previous intraocular surgery (except cataract surgery) for the control group.
- 2- Diabetes mellitus/diabetic retinopathy. 3-Coincident retinal pathology as choroidal neovascular membrane and age related macular degeneration.
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SurgeryAlso: Invasive procedureRemoval of epiretinal membrane and ILM | Procedure or surgery | Idiopathic ERM, Silicone filled eyes |
| Vitrectomy machinePars plana vitrectomy | Device | Idiopathic ERM, Silicone filled eyes |
Primary outcome
Percentage of GFAP and CD cells in idiopathic and silicone oil ERM
Time frame: 6 months
Percentage of glial fibrillary acid protein positive cells and number of cluster of differentiation cells in idiopathic and silicone oil ERM
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Feb 2020.
- Results publication: PubMed 9076205Abrams GW, Azen SP, McCuen BW 2nd, Flynn HW Jr, Lai MY, Ryan SJ. Vitrectomy with silicone oil or long-acting gas in eyes with severe proliferative vitreoretinopathy: results of additional and long-term follow-up. Silicone Study report 11. Arch Ophthalmol. 1997 Mar;115(3):335-44. doi: 10.1001/archopht.1997.01100150337005.
- medical link that contains hundreds of scientific papersLink provided by the sponsor.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Heba M Shafik, MD study chair
Tanta University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Surgery and Vitrectomy machine in people with Rhegmatogenous Retinal Detachment of Both Eyes (Diagnosis), run by Tanta University at 1 site in Egypt.
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 9 inclusion and 0 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: finished, as of the sponsor's last update on 28 Feb 2020. 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 Egypt. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of GFAP and CD cells in idiopathic and silicone oil ERM (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04288440, which also lists 1 linked publication.
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 28 Feb 2020; AzTrials last refreshed its copy on 8 Nov 2026.