Diabetic RetinopathyEyesinglecellNCT04682054
Molecular Taxonomy of Surgically-harvested Ocular Tissues Defined by Single-cell Transcriptomics
A study testing ocular surgery in people with Diabetic Retinopathy and Proliferative Vitreoretinopathy, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.
Trial summary
The surgically-harvested eye tissue (ie. vitreous-retinal proliferative membrane, outflow pathway, retinas, and pterygium) is a complex tissue responsible for maintaining intraocular homeostasis or mediating ocular pathogenesis. Read more about this study
- Who is it for?
- Ages 18 to 90 years
- Conditions the study is for
- Diabetic Retinopathy, Proliferative Vitreoretinopathy, Pterygium
- What is being tested?
- ocular surgery
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteChina
- Study dates
- 15 Jan 2021to 31 Dec 2021
- 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 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with ocular diseases and require surgery intervention.
- The surgery intervention remove pathological tissue during surgery.
- Patients consent to the treatment and single-cell sequencing.
Who cannot join
- 1. Surgically removed eye tissue cannot meet with the quality control of single-cell sequencing (mainly the tissue weight and cell counts);
Trial locations and contacts
1 site in 1 country.
China1 site
First Affiliated Hospital of Nanjing Medical University
Nanjing, Jiangsu, 210029
Zizhong Hu, Dr, 15195960100, huzizhong@njmu.edu.cn
About this study
The surgically-harvested eye tissue (ie. vitreous-retinal proliferative membrane, outflow pathway, retinas, and pterygium) is a complex tissue responsible for maintaining intraocular homeostasis or mediating ocular pathogenesis. Dysfunction of one or more resident cell types within the tissues results in different ocular disorder, leading to vision loss, or even blindness. In this study, we aim to use single-cell RNA sequencing to generate a comprehensive cell atlas of surgically-harvested eye tissues.
- Being tested
- ocular surgery
- Medical subject headings
- Diabetic Retinopathy, Vitreoretinopathy, Proliferative, Pterygium, Glaucoma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ocular surgeryProcedure or surgery
surgery to remove the pathological eye tissue
| Study group | Role | What they receive |
|---|---|---|
| surgically-removed eye tissue | Experimental | Not described Receives: Procedure: ocular surgery |
What is being measured
The primary outcome is the main question the study is designed to answer.
counts of each cell type
single-cell sequencing identify what cells and the counts within the eye tissue
Measured: 1 month
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Dec 2020
- Study start15 Jan 2021 (estimated)
- Primary completion31 Dec 2021 (estimated)
- Study completion31 Dec 2021 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Diabetic RetinopathyStudies of the same condition, open and under way.
- More trials run by The First Affiliated Hospital with Nanjing Medical 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
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04682054
- Sponsor's protocol ID
- Eyesinglecell
- Acronym
- Eyesinglecell
- Status last verified
- Dec 2020
- First submitted
- 7 Dec 2020
- Last updated
- 23 Dec 2020
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The single-cell alts of IPD will be available with reasonable request.
Publications
Tan WJ, Wang MM, Castagnoli PR, Tang T, Chan ASY, Lim TS. Single B-Cell Genomic Analyses Differentiate Vitreoretinal Lymphoma from Chronic Inflammation. Ophthalmology. 2021 Jul;128(7):1079-1090. doi: 10.1016/j.ophtha.2020.11.018. Epub 2020 Nov 20.
PubMed 33221324Wynne N, Carroll J, Duncan JL. Promises and pitfalls of evaluating photoreceptor-based retinal disease with adaptive optics scanning light ophthalmoscopy (AOSLO). Prog Retin Eye Res. 2021 Jul;83:100920. doi: 10.1016/j.preteyeres.2020.100920. Epub 2020 Nov 6.
PubMed 33161127de Bruijn SE, Fiorentino A, Ottaviani D, Fanucchi S, Melo US, Corral-Serrano JC, Mulders T, Georgiou M, Rivolta C, Pontikos N, Arno G, Roberts L, Greenberg J, Albert S, Gilissen C, Aben M, Rebello G, Mead S, Raymond FL, Corominas J, Smith CEL, Kremer H, Downes S, Black GC, Webster AR, Inglehearn CF, van den Born LI, Koenekoop RK, Michaelides M, Ramesar RS, Hoyng CB, Mundlos S, Mhlanga MM, Cremers FPM, Cheetham ME, Roosing S, Hardcastle AJ. Structural Variants Create New Topological-Associated Domains and Ectopic Retinal Enhancer-Gene Contact in Dominant Retinitis Pigmentosa. Am J Hum Genet. 2020 Nov 5;107(5):802-814. doi: 10.1016/j.ajhg.2020.09.002. Epub 2020 Oct 5.
PubMed 33022222van Zyl T, Yan W, McAdams A, Peng YR, Shekhar K, Regev A, Juric D, Sanes JR. Cell atlas of aqueous humor outflow pathways in eyes of humans and four model species provides insight into glaucoma pathogenesis. Proc Natl Acad Sci U S A. 2020 May 12;117(19):10339-10349. doi: 10.1073/pnas.2001250117. Epub 2020 Apr 27.
PubMed 32341164
Study at a glance
From the registry record, last updated by the sponsor on 23 Dec 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Molecular Taxonomy of Surgically-harvested Ocular Tissues Defined by Single-cell Transcriptomics
- ClinicalTrials.gov ID
- NCT04682054
- Acronym / sponsor ID
- Eyesinglecell / Eyesinglecell
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 80 participants (estimated)
- Lead sponsor
- The First Affiliated Hospital with Nanjing Medical UniversityUniversity, hospital or other
- Study start
- 15 Jan 2021 (estimated)
- Primary completion
- 31 Dec 2021 (estimated)
- Study completion
- 31 Dec 2021 (estimated)
- First posted
- 23 Dec 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.
The surgically-harvested eye tissue (ie. vitreous-retinal proliferative membrane, outflow pathway, retinas, and pterygium) is a complex tissue responsible for maintaining intraocular homeostasis or mediating ocular pathogenesis. Dysfunction of one or more resident cell types within the tissues results in different ocular disorder, leading to vision loss, or even blindness. In this study, we aim to use single-cell RNA sequencing to generate a comprehensive cell atlas of surgically-harvested eye tissues.
Study design
- Primary purpose
- Basic science
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| surgically-removed eye tissue | Experimental | Procedure: ocular surgery |
Who may qualify
- Ages
- 18 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients with ocular diseases and require surgery intervention.
- The surgery intervention remove pathological tissue during surgery.
- Patients consent to the treatment and single-cell sequencing.
Key exclusion criteria (1 listed)
- 1. Surgically removed eye tissue cannot meet with the quality control of single-cell sequencing (mainly the tissue weight and cell counts);
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 |
|---|---|---|
| ocular surgerysurgery to remove the pathological eye tissue | Procedure or surgery | surgically-removed eye tissue |
Primary outcome
counts of each cell type
Time frame: 1 month
single-cell sequencing identify what cells and the counts within the eye tissue
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Dec 2020.
- Background: PubMed 33221324Tan WJ, Wang MM, Castagnoli PR, Tang T, Chan ASY, Lim TS. Single B-Cell Genomic Analyses Differentiate Vitreoretinal Lymphoma from Chronic Inflammation. Ophthalmology. 2021 Jul;128(7):1079-1090. doi: 10.1016/j.ophtha.2020.11.018. Epub 2020 Nov 20.
- Background: PubMed 33161127Wynne N, Carroll J, Duncan JL. Promises and pitfalls of evaluating photoreceptor-based retinal disease with adaptive optics scanning light ophthalmoscopy (AOSLO). Prog Retin Eye Res. 2021 Jul;83:100920. doi: 10.1016/j.preteyeres.2020.100920. Epub 2020 Nov 6.
- Background: PubMed 33022222de Bruijn SE, Fiorentino A, Ottaviani D, Fanucchi S, Melo US, Corral-Serrano JC, Mulders T, Georgiou M, Rivolta C, Pontikos N, Arno G, Roberts L, Greenberg J, Albert S, Gilissen C, Aben M, Rebello G, Mead S, Raymond FL, Corominas J, Smith CEL, Kremer H, Downes S, Black GC, Webster AR, Inglehearn CF, van den Born LI, Koenekoop RK, Michaelides M, Ramesar RS, Hoyng CB, Mundlos S, Mhlanga MM, Cremers FPM, Cheetham ME, Roosing S, Hardcastle AJ. Structural Variants Create New Topological-Associated Domains and Ectopic Retinal Enhancer-Gene Contact in Dominant Retinitis Pigmentosa. Am J Hum Genet. 2020 Nov 5;107(5):802-814. doi: 10.1016/j.ajhg.2020.09.002. Epub 2020 Oct 5.
- Background: PubMed 32341164van Zyl T, Yan W, McAdams A, Peng YR, Shekhar K, Regev A, Juric D, Sanes JR. Cell atlas of aqueous humor outflow pathways in eyes of humans and four model species provides insight into glaucoma pathogenesis. Proc Natl Acad Sci U S A. 2020 May 12;117(19):10339-10349. doi: 10.1073/pnas.2001250117. Epub 2020 Apr 27.
- Individual participant dataSharing planned: Yes. The single-cell alts of IPD will be available with reasonable request.
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing ocular surgery in people with Diabetic Retinopathy and Proliferative Vitreoretinopathy, run by The First Affiliated Hospital with Nanjing Medical University at 1 site in China.
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 1 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 23 Dec 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 China. 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 Zizong Hu, PhD, MD (+8615195960100, huzizhong@njum.edu.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
counts of each cell type (time frame: 1 month). 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 NCT04682054, which also lists 4 linked publications.
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 23 Dec 2020; AzTrials last refreshed its copy on 7 Nov 2026.