The Safety and Efficacy of Intravitreal Topotecan for the Treatment of Proliferative Vitreoretinopathy

Summary

The goal of this clinical trial is to evaluate the safety and efficacy of intravitreal topotecan for the treatment of patients with rhegmatogenous retinal detachment due to proliferative vitreoretinopathy (PVR) or resulting from an open globe injury, and compare the outcomes to those who do no receive intravitreal topotecan. The main objectives it aims to achieve are: * to study the safety profile of intravitreal topotecan in the treatment of PVR * to evaluate the efficacy of intravitreal topotecan in treating PVR. Post-consent, participants will: * undergo vitrectomy (with or without scleral buckle) as part of standard treatment for retinal detachment. * receive intravitreal topotecan at the time of surgery, post-operative day 7 and post-operative day 28 (if randomized to receive the medication) * come in at post-operative day 1, 7, 28, 56, 84, 126 and 168 to undergo a complete ophthalmic exam along with a fundus photography and optical coherence tomography of the macula, have their intraocular pressure and visual acuity measured and their adverse events monitored, if any. Researchers will compare participants who receive intravitreal topotecan for PVR to those who do not to see if there is a significant variability in recurrence of retinal detachment, rate of retinal reattachment and PVR grade 6 months after surgery.

Timeline

Start

2026-09-01

Primary completion

2027-12-01

Completion

2028-09-01

Publications

• Background Ohman T, Gawriyski L, Miettinen S, Varjosalo M, Loukovaara S. Molecular pathogenesis of rhegmatogenous retinal detachment. Sci Rep. 2021 Jan 13;11(1):966. doi: 10.1038/s41598-020-80005-w.
• Background Mysore Y, Del Amo EM, Loukovaara S, Hagstrom M, Urtti A, Kauppinen A. Statins for the prevention of proliferative vitreoretinopathy: cellular responses in cultured cells and clinical statin concentrations in the vitreous. Sci Rep. 2021 Jan 13;11(1):980. doi: 10.1038/s41598-020-80127-1.
• Background Claes C, Lafeta AP. Proliferative vitreoretinopathy. Dev Ophthalmol. 2014;54:188-95. doi: 10.1159/000360466. Epub 2014 Aug 26.
• Background Pastor JC, de la Rua ER, Martin F. Proliferative vitreoretinopathy: risk factors and pathobiology. Prog Retin Eye Res. 2002 Jan;21(1):127-44. doi: 10.1016/s1350-9462(01)00023-4.
• Background Sadaka A, Giuliari GP. Proliferative vitreoretinopathy: current and emerging treatments. Clin Ophthalmol. 2012;6:1325-33. doi: 10.2147/OPTH.S27896. Epub 2012 Aug 14.
• Background Rao R, Honavar SG, Sharma V, Reddy VAP. Intravitreal topotecan in the management of refractory and recurrent vitreous seeds in retinoblastoma. Br J Ophthalmol. 2018 Apr;102(4):490-495. doi: 10.1136/bjophthalmol-2017-310641. Epub 2017 Aug 26.
• Background Bogan CM, Kaczmarek JV, Pierce JM, Chen SC, Boyd KL, Calcutt MW, Bridges TM, Lindsley CW, Nadelmann JB, Liao A, Hsieh T, Abramson DH, Francis JH, Friedman DL, Richmond A, Daniels AB. Evaluation of intravitreal topotecan dose levels, toxicity and efficacy for retinoblastoma vitreous seeds: a preclinical and clinical study. Br J Ophthalmol. 2022 Feb;106(2):288-296. doi: 10.1136/bjophthalmol-2020-318529. Epub 2021 May 10.
• Background Nadelmann J, Francis JH, Brodie SE, Muca E, Abramson DH. Is intravitreal topotecan toxic to retinal function? Br J Ophthalmol. 2021 Jul;105(7):1016-1018. doi: 10.1136/bjophthalmol-2020-316588. Epub 2020 Jul 14.
• Background Ghassemi F, Shields CL, Ghadimi H, Khodabandeh A, Roohipoor R. Combined intravitreal melphalan and topotecan for refractory or recurrent vitreous seeding from retinoblastoma. JAMA Ophthalmol. 2014 Aug;132(8):936-41. doi: 10.1001/jamaophthalmol.2014.414.
• Background Cepeda MS, Boston R, Farrar JT, Strom BL. Comparison of logistic regression versus propensity score when the number of events is low and there are multiple confounders. Am J Epidemiol. 2003 Aug 1;158(3):280-7. doi: 10.1093/aje/kwg115.
• Background Kim J, Shin W. How to do random allocation (randomization). Clin Orthop Surg. 2014 Mar;6(1):103-9. doi: 10.4055/cios.2014.6.1.103. Epub 2014 Feb 14.
• Background Machemer R, Aaberg TM, Freeman HM, Irvine AR, Lean JS, Michels RM. An updated classification of retinal detachment with proliferative vitreoretinopathy. Am J Ophthalmol. 1991 Aug 15;112(2):159-65. doi: 10.1016/s0002-9394(14)76695-4.

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Indications