- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07571330
Upper Punctal Plug Occlusion in Previous Lower Punctal Occlusion.
Effectiveness of Upper Punctal Plug Occlusion in Patients With Dry Eye Disease With Previous Lower Punctal Occlusion.
Přehled studie
Postavení
Podmínky
Intervence / Léčba
Detailní popis
Typ studie
Zápis (Odhadovaný)
Fáze
- Nelze použít
Kontakty a umístění
Studijní kontakt
- Jméno: Karim Mohamed-Noriega, Dr. med.
- Telefonní číslo: 8514 +52 8113404960
- E-mail: karim.mohamednr@uanl.edu.mx
Studijní místa
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Nuevo León
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Monterrey, Nuevo León, Mexiko, 64460
- Nábor
- Ophthalmology Department
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Kontakt:
- Karim Mohamed-Noriega, Dr. med.
- Telefonní číslo: 8514 +52 8113404960
- E-mail: karim.mohamednrg@uanl.edu.mx
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Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
- Dospělý
- Starší dospělý
Přijímá zdravé dobrovolníky
Popis
Inclusion Criteria:
- Patients of both sexes
- One or both eyes may be included
- Inferior lacrimal punctum occluded (with a punctal plug or cauterization), clinically sealed under slit-lamp examination
- Functional superior lacrimal punctum
- Aqueous-deficient dry eye (such as Sjögren's disease, graft-versus-host disease, or primary dry eye disease.)
- Age >18 years
- OSDI score >13 and one of the following signs: Tear film markers (Fluorescein tear break up-time <5, First non-invasive tear breakup time <10, Schirmer test without anesthesia <10 mm, Schirmer test with anesthesia <10 mm), Ocular surface markers (corneal staining >5 spots or conjunctival staining >9 spots).
Exclusion Criteria:
- Active ocular surface infection.
- Patients who are unwilling to participate or to provide written informed consent.
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Jiný
- Přidělení: N/A
- Intervenční model: Přiřazení jedné skupiny
- Maskování: Žádné (otevřený štítek)
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
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Experimentální: 1 arm, superior lacrimal punctal occlusion with plug in patients with aqueous-deficient dry eye who
1 arm, superior lacrimal punctal occlusion with plug in patients with aqueous-deficient dry eye who have previously occlusion of the inferior lacrimal punctum.
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Superior lacrimal punctal occlusion with plug in patients with aqueous-deficient dry eye who have previously occlusion of the inferior lacrimal punctum.
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Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
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1. Effectiveness
Časové okno: Baseline, 2 weeks, 4 weeks, 3 months and 6 months
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To evaluate signs and symptoms of dry eye, after superior lacrimal punctal occlusion with plug in patients with aqueous-deficient dry eye who have previously occlusion of the inferior lacrimal punctum at baseline, 2 weeks, 4 weeks, 3 months and 6 months
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Baseline, 2 weeks, 4 weeks, 3 months and 6 months
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Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
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Change in lower tear meniscus heigh
Časové okno: Baseline to 3 months after upper punctal plug placement.
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Change in lower tear meniscus height measured using Keratograph and optical coherence tomography (OCT) after upper punctal plug placement.
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Baseline to 3 months after upper punctal plug placement.
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Change in lower tear meniscus area
Časové okno: Baseline to 3 months after upper punctal plug placement.
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Change in lower tear meniscus area measured using Keratograph and optical coherence tomography (OCT) after upper punctal plug placement.
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Baseline to 3 months after upper punctal plug placement.
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Change from baseline in dry eye severity as assessed by the Ocular Surface Disease Index (OSDI)
Časové okno: Baseline to 3 months after upper punctal plug placement.
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The OSDI is a validated 12-item questionnaire evaluating dry eye symptoms and their impact on vision-related functioning across three domains: ocular symptoms, visual function, and environmental triggers. Each item is scored on a 5-point scale (0 = none of the time to 4 = all of the time). The total OSDI score is calculated as: OSDI= number of questions answered (sum of scores)×25 Scores range from 0 to 100, with higher scores indicating greater disability. Severity categories are: normal (0-12), mild (13-22), moderate (23-32), and severe (33-100). |
Baseline to 3 months after upper punctal plug placement.
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Change from baseline in dry eye symptoms as assessed by the Symptom Assessment in Dry Eye (SANDE) scale.
Časové okno: Baseline to 3 months after upper punctal plug placement.
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The SANDE is a validated, patient-reported outcome measuring dry eye symptom burden using two 100-mm visual analog scales assessing frequency and severity of symptoms (0 = none, 100 = maximal). The composite SANDE score is calculated as the square root of the product of frequency and severity scores: Higher scores indicate worse symptoms. |
Baseline to 3 months after upper punctal plug placement.
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Change in tear film break-up time (TFBUT).
Časové okno: Baseline to 3 months after upper punctal plug placement.
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Change in tear film break-up time measured with fluorescein after upper punctal plug placement.
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Baseline to 3 months after upper punctal plug placement.
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Change in non-invasive tear break-up time (NIBUT).
Časové okno: Baseline to 3 months after upper punctal plug placement.
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Change in non-invasive tear break-up time measured using Keratograph after upper punctal plug placement.
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Baseline to 3 months after upper punctal plug placement.
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Change from baseline in ocular surface damage as assessed by the SICCA Ocular Surface Staining Score (OSS).
Časové okno: Baseline to 3 months after upper punctal plug placement.
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The SICCA OSS is a standardized clinical grading system developed by the Sjögren's International Collaborative Clinical Alliance to quantify ocular surface epithelial damage using vital dyes.
The score combines fluorescein corneal staining and lissamine green conjunctival staining in each eye.
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Baseline to 3 months after upper punctal plug placement.
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Change from baseline in corneal epithelial damage as assessed by the National Eye Institute Corneal Fluorescein Staining (NEI) score
Časové okno: Baseline to 3 months after upper punctal plug placement.
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The NEI corneal fluorescein staining score is a standardized slit-lamp-based grading system used to quantify corneal epithelial damage after fluorescein instillation. The cornea is divided into five regions (central, superior, inferior, nasal, and temporal). Each region is graded on a 0 to 3 scale based on staining density and extent: 0 = no staining
The total NEI score is the sum of all regions, ranging from 0 to 15, with higher scores indicating greater corneal epithelial damage. |
Baseline to 3 months after upper punctal plug placement.
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Change in Schirmer I test results.
Časové okno: Baseline to 3 months after upper punctal plug placement.
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Change in tear production measured using the Schirmer I test with and without anesthesia after upper punctal plug placement.
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Baseline to 3 months after upper punctal plug placement.
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Change in corneal sensitivity.
Časové okno: Baseline to 3 months after upper punctal plug placement.
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Change in corneal sensitivity measured by corneal esthesiometry after upper punctal plug placement.
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Baseline to 3 months after upper punctal plug placement.
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Incidence of epiphora after upper punctal plug placement.
Časové okno: Up to 3 months after upper punctal plug placement.
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Incidence of epiphora reported after upper punctal plug placement during the follow-up period.
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Up to 3 months after upper punctal plug placement.
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Upper punctal plug retention rate.
Časové okno: Up to 3 months after upper punctal plug placement.
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Proportion of upper punctal plugs remaining in place during the follow-up period after placement.
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Up to 3 months after upper punctal plug placement.
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Spolupracovníci a vyšetřovatelé
Vyšetřovatelé
- Vrchní vyšetřovatel: Karim Mohamed-Noriega, Dr. med., Universidad Autonoma de Nuevo Leon
Publikace a užitečné odkazy
Obecné publikace
- 14. Qiu, W., Liu, Z., Ao, M., Li, X., & Wang, W. (2013). Punctal plugs versus artificial tears for treating primary Sjögren's syndrome with keratoconjunctivitis SICCA: A comparative observation of their effects on visual function. Rheumatology International, 33(10), 2543-2548. https://doi.org/10.1007/s00296-013-2769-1
- 13. Perez, V. L., Chen, W., Craig, J. P., Dogru, M., Jones, L., Stapleton, F., Wolffsohn, J. S., & Sullivan, D. A. (2025). TFOS DEWS III: Executive Summary. American Journal of Ophthalmology. https://doi.org/10.1016/j.ajo.2025.09.035
- 12. Marcet, M. M., Shtein, R. M., Bradley, E. A., Deng, S. X., Meyer, D. R., Bilyk, J. R., Yen, M. T., Lee, W. B., Mawn, L. A., & Lum, F. (2015a). Safety and Efficacy of Lacrimal Drainage System Plugs for Dry Eye Syndrome A Report by the American Academy of Ophthalmology. Ophthalmology, 122(8), 1681-1687. https://doi.org/10.1016/j.ophtha.2015.04.034
- 11. Lanza NL, Valenzuela F, Perez VL, Galor A. The Matrix Metalloproteinase 9 Point-of-Care Test in Dry Eye. Ocul Surf [Internet]. 2016 Apr 1;14(2):189-95. Available from: https://linkinghub.elsevier.com/retrieve/pii/S1542012416000082
- 10. Kaido, M., Ishida, R., Dogru, M., & Tsubota, K. (2013). Comparison of retention rates and complications of 2 different types of silicon lacrimal punctal plugs in the treatment of dry eye disease. American Journal of Ophthalmology, 155(4). https://doi.org/10.1016/j.ajo.2012.10.024
- 9. Hallali, G., Guindolet, D., Gabison, E. E., Cochereau, I., & Doan, S. (2024a). Immediate and Delayed Effects of Punctal Plug Insertion on Tear Meniscus Height in Severe Aqueous-Deficient Dry Eye. www.corneajrnl.com
- 8. Craig, J. P., Nichols, K. K., Akpek, E. K., Caffery, B., Dua, H. S., Joo, C. K., Liu, Z., Nelson, J. D., Nichols, J. J., Tsubota, K., & Stapleton, F. (2017a). TFOS DEWS II Definition and Classification Report. In Ocular Surface (Vol. 15, Issue 3, pp. 276-283). Elsevier Inc. https://doi.org/10.1016/j.jtos.2017.05.008
- 7. Chen, F., Wang, J., Chen, W., Shen, M., Xu, S., & Lu, F. (2010). Upper punctal occlusion versus lower punctal occlusion in dry eye. Investigative Ophthalmology and Visual Science, 51(11), 5571-5577. https://doi.org/10.1167/iovs.09-5097
- 6. Chen, F., Shen, M., Chen, W., Wang, J., Li, M., Yuan, Y., & Lu, F. (2010). Tear meniscus volume in dry eye after punctal occlusion. Investigative Ophthalmology and Visual Science, 51(4), 1965-1969. https://doi.org/10.1167/iovs.09-4349
- 5. Burgess, P. I., Koay, P., & Clark, P. (n.d.). SmartPlug Versus Silicone Punctal Plug Therapy for Dry Eye A Prospective Randomized Trial.
- 4. Boldin, I., Klein, A., Haller-Schober, E. M., & Horwath-Winter, J. (2008). Long-term Follow-up of Punctal and Proximal Canalicular Stenoses After Silicone Punctal Plug Treatment in Dry Eye Patients. American Journal of Ophthalmology, 146(6). https://doi.org/10.1016/j.ajo.2008.06.028
- 3. Balaram, M., Schaumberg, D. A., & Dana, M. R. (2001). Efficacy and Tolerability Outcomes After Punctal Occlusion With Silicone Plugs in Dry Eye Syndrome.
- 2. Ali, M. J., & Singh, S. (2021). Optical coherence tomography and the proximal lacrimal drainage system: a major review. In Graefe's Archive for Clinical and Experimental Ophthalmology (Vol. 259, Issue 11, pp. 3197-3208). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/s00417-021-05175-3
- 1. Ahn, H., Ji, Y. W., Jun, I., Kim, T. I., Lee, H. K., & Seo, K. Y. (2022). Comparison of Treatment Modalities for Dry Eye in Primary Sjogren's Syndrome. Journal of Clinical Medicine, 11(2). https://doi.org/10.3390/jcm11020463
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Aktuální)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
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Více informací
Termíny související s touto studií
Další identifikační čísla studie
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