AzTrials
AzTrials

Other Retinal DisordersRBBKNCT06796673

Retina BioBank: Retina Biomarkers for a Deeper Understanding of Vitreoretinal and Systemic Diseases

An observational study of Other Retinal Disorders and Retinal Disease, run by Greater Houston Retina Research at 3 sites in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
Search all trials

Trial summary

The RBBK study is a non-interventional, prospective study that will characterize disease state biomarker levels from aqueous humor, vitreous humor, intraoperative tissue and saliva of subjects with various retinal and systemic pathologies. Read more about this study

Who is it for?
Ages 18 years and older
How many people
10,000 participants
Where
3 sitesUnited States
Study dates
11 Apr 2022to Aug 2032
Phase
Observational
Are there results?
Not yet: the study is under way

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

Study population: Retina Consultants of Texas patient population.

Who may be able to join

  • 1. Subjects with vitreoretinal disease in at least one eye receiving a retinal treatment intervention

Who cannot join

  • Prior intraocular or subtenon steroid injection in the study eye within the prior 1 month of signing informed consent
  • Intraocular or refractive surgery in the study eye within 30 days of signing informed consent
  • Systemic anti-VEGF treatment within 90 days of signing informed consent

Trial locations and contacts

3 sites in 1 country. Contact the study team or a site near you to ask about taking part.

United States3 sites

  • Retina Consultants of Texas

    Bellaire, Texas, 77401

  • Retina Consultants of Texas

    Katy, Texas, 77494

  • Retina Consultants of Texas

    The Woodlands, Texas, 77384

Other trials in United States

About this study

The RBBK study is a non-interventional, prospective study that will characterize disease state biomarker levels from aqueous humor, vitreous humor, intraoperative tissue and saliva of subjects with various retinal and systemic pathologies.

Read the detailed description

The RBBK study is a non-interventional, prospective study that will characterize disease state biomarker levels from aqueous humor, vitreous humor, intraoperative tissue and saliva of subjects with various retinal and systemic pathologies.

Participants are eligible to be included in the study only if all of the following criteria apply:

  1. Men or women > 18 years of age
  2. Subjects with vitreoretinal disease in at least one eye receiving a retinal treatment intervention
  3. Able and willing to provide signed informed consent

The study will consist of a single visit and a retrospective chart review. The study visit will consist of:

  1. Screening for eligibility;
  2. Aqueous humor collection (if applicable);
  3. Vitreous humor collection (if applicable);
  4. Intraoperative tissue (if applicable); and
  5. Saliva collection

If applicable, approximately 50 microliters (or more, up to 1000 microliters) of aqueous fluid will be collected by anterior chamber paracentesis according to standard clinical procedures. If applicable, up to 2 milliliters of vitreous fluid will be collected according to standard clinical procedures. Specific tissue, such as scar tissue, are routinely removed from the eye during vitreoretinal procedures. When being removed during a standard of care surgical procedure, these tissues may be collected. Saliva will also be collected according to instructions found in the Saliva Oragene Dx Collection Kit.

Medical subject headings
Retinal Diseases

What is being measured

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

  1. To quantify levels of disease state biomarkers implicated in the pathogenesis of various retinal and systemic pathologies

    An analysis of the ocular fluids and tissues of patients with various vitreoretinal diseases would allow for the development of a deeper understanding of the processes that contribute to their onset and may ultimately provide insight in methods to refine treatment and management options.

    Measured: Baseline

Timeline

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

  1. First posted28 Jan 2025
  2. Study start11 Apr 2022
  3. Primary completionApr 2032 (estimated)
  4. Study completionAug 2032 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
10,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06796673
Sponsor's protocol ID
RBBK
Acronym
RBBK
Status last verified
Jan 2025
First submitted
22 Feb 2023
Last updated
28 Jan 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Aiello LP, Avery RL, Arrigg PG, Keyt BA, Jampel HD, Shah ST, Pasquale LR, Thieme H, Iwamoto MA, Park JE, et al. Vascular endothelial growth factor in ocular fluid of patients with diabetic retinopathy and other retinal disorders. N Engl J Med. 1994 Dec 1;331(22):1480-7. doi: 10.1056/NEJM199412013312203.

    PubMed 7526212

  • Mesquida M, Drawnel F, Fauser S. The role of inflammation in diabetic eye disease. Semin Immunopathol. 2019 Jul;41(4):427-445. doi: 10.1007/s00281-019-00750-7. Epub 2019 Jun 7.

    PubMed 31175392

  • Mesquita J, Castro-de-Sousa JP, Vaz-Pereira S, Neves A, Passarinha LA, Tomaz CT. Evaluation of the growth factors VEGF-a and VEGF-B in the vitreous and serum of patients with macular and retinal vascular diseases. Growth Factors. 2018 Apr;36(1-2):48-57. doi: 10.1080/08977194.2018.1477140. Epub 2018 Jul 3.

    PubMed 29969324

  • Amadio M, Govoni S, Pascale A. Targeting VEGF in eye neovascularization: What's new?: A comprehensive review on current therapies and oligonucleotide-based interventions under development. Pharmacol Res. 2016 Jan;103:253-69. doi: 10.1016/j.phrs.2015.11.027. Epub 2015 Dec 8.

    PubMed 26678602

  • Witmer AN, Vrensen GF, Van Noorden CJ, Schlingemann RO. Vascular endothelial growth factors and angiogenesis in eye disease. Prog Retin Eye Res. 2003 Jan;22(1):1-29. doi: 10.1016/s1350-9462(02)00043-5.

    PubMed 12597922

  • Zhang X, Bao S, Lai D, Rapkins RW, Gillies MC. Intravitreal triamcinolone acetonide inhibits breakdown of the blood-retinal barrier through differential regulation of VEGF-A and its receptors in early diabetic rat retinas. Diabetes. 2008 Apr;57(4):1026-33. doi: 10.2337/db07-0982. Epub 2008 Jan 3.

    PubMed 18174522

  • Hofman P, Blaauwgeers HG, Tolentino MJ, Adamis AP, Nunes Cardozo BJ, Vrensen GF, Schlingemann RO. VEGF-A induced hyperpermeability of blood-retinal barrier endothelium in vivo is predominantly associated with pinocytotic vesicular transport and not with formation of fenestrations. Vascular endothelial growth factor-A. Curr Eye Res. 2000 Aug;21(2):637-45.

    PubMed 11148600

  • Wu H, Hwang DK, Song X, Tao Y. Association between Aqueous Cytokines and Diabetic Retinopathy Stage. J Ophthalmol. 2017;2017:9402198. doi: 10.1155/2017/9402198. Epub 2017 Jun 7.

    PubMed 28680705

  • Dong N, Xu B, Wang B, Chu L. Study of 27 aqueous humor cytokines in patients with type 2 diabetes with or without retinopathy. Mol Vis. 2013 Aug 4;19:1734-46. Print 2013.

    PubMed 23922491

  • Kersten E, Paun CC, Schellevis RL, Hoyng CB, Delcourt C, Lengyel I, Peto T, Ueffing M, Klaver CCW, Dammeier S, den Hollander AI, de Jong EK. Systemic and ocular fluid compounds as potential biomarkers in age-related macular degeneration. Surv Ophthalmol. 2018 Jan-Feb;63(1):9-39. doi: 10.1016/j.survophthal.2017.05.003. Epub 2017 May 15.

    PubMed 28522341

  • Knickelbein JE, Chan CC, Sen HN, Ferris FL, Nussenblatt RB. Inflammatory Mechanisms of Age-related Macular Degeneration. Int Ophthalmol Clin. 2015 Summer;55(3):63-78. doi: 10.1097/IIO.0000000000000073. No abstract available.

    PubMed 26035762

  • Jonas JB, Tao Y, Neumaier M, Findeisen P. Cytokine concentration in aqueous humour of eyes with exudative age-related macular degeneration. Acta Ophthalmol. 2012 Aug;90(5):e381-8. doi: 10.1111/j.1755-3768.2012.02414.x. Epub 2012 Apr 10.

    PubMed 22490043

  • Park KS, Kim JW, An JH, Woo JM. Elevated plasma pentraxin 3 and its association with retinal vein occlusion. Korean J Ophthalmol. 2014 Dec;28(6):460-5. doi: 10.3341/kjo.2014.28.6.460. Epub 2014 Nov 19.

    PubMed 25435748

  • Noma H, Funatsu H, Yamasaki M, Tsukamoto H, Mimura T, Sone T, Hirayama T, Tamura H, Yamashita H, Minamoto A, Mishima HK. Aqueous humour levels of cytokines are correlated to vitreous levels and severity of macular oedema in branch retinal vein occlusion. Eye (Lond). 2008 Jan;22(1):42-8. doi: 10.1038/sj.eye.6702498. Epub 2006 Jul 7.

    PubMed 16826241

  • Lopez-Contreras AK, Martinez-Ruiz MG, Olvera-Montano C, Robles-Rivera RR, Arevalo-Simental DE, Castellanos-Gonzalez JA, Hernandez-Chavez A, Huerta-Olvera SG, Cardona-Munoz EG, Rodriguez-Carrizalez AD. Importance of the Use of Oxidative Stress Biomarkers and Inflammatory Profile in Aqueous and Vitreous Humor in Diabetic Retinopathy. Antioxidants (Basel). 2020 Sep 20;9(9):891. doi: 10.3390/antiox9090891.

    PubMed 32962301

Questions about this trial

What is this clinical trial studying?

An observational study of Other Retinal Disorders and Retinal Disease, run by Greater Houston Retina Research at 3 sites in United States.

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 1 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: enrolling by invitation, as of the sponsor's last update on 28 Jan 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. 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?

This study is still under way. Results are not available in the source record yet.

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?

To quantify levels of disease state biomarkers implicated in the pathogenesis of various retinal and systemic pathologies (time frame: Baseline). 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 NCT06796673, which also lists 15 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 28 Jan 2025.

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