Effect of Mitomycin-C on the Outcomes of Patients Receiving Ahmed Glaucoma Valve Implantation Surgery

Summary

The goal of this clinical trial is to determine if the intraoperative application of Mitomycin-C can enhance the outcomes of Ahmed Glaucoma Valve (AGV) implantation in treating refractory glaucoma. This study is conducted among adult patients diagnosed with refractory glaucoma, a condition characterized by uncontrolled intraocular pressure despite the use of maximum tolerated medical therapy and previous surgical interventions. The main questions it aims to answer are: Does intraoperative Mitomycin-C reduce postoperative intraocular pressure more effectively than surgery without it? Does Mitomycin-C reduce the occurrence of postoperative complications such as hypertensive phases? Researchers will compare the experimental group receiving Mitomycin-C during AGV implantation to the control group undergoing AGV implantation without Mitomycin-C to see if the treatment leads to lower intraocular pressure and fewer surgical complications. Participants will: * Undergo baseline assessment including eye examination and measurement of intraocular pressure. * Be randomly assigned to receive either the Mitomycin-C treatment or no intervention during their scheduled AGV implantation surgery. * Attend follow-up visits at 1 week, 1 month, 3 months, 6 months, and 12 months post-surgery to assess intraocular pressure, visual acuity, and any postoperative complications.

Timeline

Start

2024-12-01

Primary completion

2026-07-01

Completion

2026-12-01

Publications

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• Background Alasbali T, Alghamdi AA, Khandekar R. Outcomes of Ahmed valve surgery for refractory glaucoma in Dhahran, Saudi Arabia. Int J Ophthalmol. 2015 Jun 18;8(3):560-4. doi: 10.3980/j.issn.2222-3959.2015.03.22. eCollection 2015.
• Background Heijl A, Leske MC, Bengtsson B, Hyman L, Bengtsson B, Hussein M; Early Manifest Glaucoma Trial Group. Reduction of intraocular pressure and glaucoma progression: results from the Early Manifest Glaucoma Trial. Arch Ophthalmol. 2002 Oct;120(10):1268-79. doi: 10.1001/archopht.120.10.1268.
• Background Riva I, Roberti G, Oddone F, Konstas AG, Quaranta L. Ahmed glaucoma valve implant: surgical technique and complications. Clin Ophthalmol. 2017 Feb 17;11:357-367. doi: 10.2147/OPTH.S104220. eCollection 2017.
• Background Kurnaz E, Kubaloglu A, Yilmaz Y, Koytak A, Ozertrk Y. The effect of adjunctive mitomycin C in Ahmed glaucoma valve implantation. Eur J Ophthalmol. 2005 Jan - Feb 2005;15(1):27-31. doi: 10.5301/EJO.2008.210.
• Background Luzu J, Baudouin C, Hamard P. The role of Ahmed glaucoma valve in the management of refractory glaucoma: Long-term outcomes and complications. Eur J Ophthalmol. 2021 Sep;31(5):2383-2389. doi: 10.1177/1120672120968733. Epub 2020 Nov 25.
• Background Amoozgar B, Lin SC, Han Y, Kuo J. A role for antimetabolites in glaucoma tube surgery: current evidence and future directions. Curr Opin Ophthalmol. 2016 Mar;27(2):164-9. doi: 10.1097/ICU.0000000000000244.
• Background Cui QN, Hsia YC, Lin SC, Stamper RL, Rose-Nussbaumer J, Mehta N, Porco TC, Naseri A, Han Y. Effect of mitomycin c and 5-flurouracil adjuvant therapy on the outcomes of Ahmed glaucoma valve implantation. Clin Exp Ophthalmol. 2017 Mar;45(2):128-134. doi: 10.1111/ceo.12811. Epub 2016 Sep 1.
• Background Costa VP, Azuara-Blanco A, Netland PA, Lesk MR, Arcieri ES. Efficacy and safety of adjunctive mitomycin C during Ahmed Glaucoma Valve implantation: a prospective randomized clinical trial. Ophthalmology. 2004 Jun;111(6):1071-6. doi: 10.1016/j.ophtha.2003.09.037.
• Background Kook MS, Yoon J, Kim J, Lee MS. Clinical results of Ahmed glaucoma valve implantation in refractory glaucoma with adjunctive mitomycin C. Ophthalmic Surg Lasers. 2000 Mar-Apr;31(2):100-6.
• Background Tien M., Yip L., Wong E.P.Y., Yong V., Wong H.T. & Lim B.A. (2013). The effect of adjuvant mitomycin C in ahmed glaucoma valve surgery for refractory glaucoma. Investigative Ophthalmology and Visual Science, 54(15), no pagination. Retrieved from http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=reference&D=emed14&NEWS=N&AN=628682336.
• Background Kurnaz E, Kubaloglu A, Yilmaz Y, Koytak A, Ozerturk Y. The effect of adjunctive Mitomycin C in Ahmed glaucoma valve implantation. Eur J Ophthalmol. 2005 Jan-Feb;15(1):27-31.
• Background Bikbov MM, Khusnitdinov II. The Results of the Use of Ahmed Valve in Refractory Glaucoma Surgery. J Curr Glaucoma Pract. 2015 Sep-Dec;9(3):86-91. doi: 10.5005/jp-journals-10008-1191. Epub 2016 Feb 2.
• Background Alvarado JA, Hollander DA, Juster RP, Lee LC. Ahmed valve implantation with adjunctive mitomycin C and 5-fluorouracil: long-term outcomes. Am J Ophthalmol. 2008 Aug;146(2):276-284. doi: 10.1016/j.ajo.2008.04.008. Epub 2008 Jun 6.
• Background Park Y, Cho KJ. Posterior segment complications of Ahmed valve implantation. BMC Ophthalmol. 2022 Feb 15;22(1):78. doi: 10.1186/s12886-022-02297-y.

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Indications