PURPOSE: To investigate real-world safety and efficacy of voretigene neparvovec gene therapy administration in pediatric patients with biallelic RPE65 disease-causing variants. METHODS: A retrospective study of 27 eyes of 14 patients with RPE65-associated Leber congenital amaurosis examined postoperative complications and longitudinal changes in photoreceptor function following treatment with subretinal injection of voretigene neparvovec. Full-field stimulus threshold testing (FST), Goldmann visual fields (GVF), best-corrected visual acuity (BCVA), and central subfield thickness (CST) on optical coherence tomography (OCT) scans were collected preoperatively and up to 12 months posttreatment. RESULTS: Baseline through 6-12 month follow-up FST and GVF data were obtained for 13 eyes of 7 patients. FST improved for each eye after treatment with a mean improvement of 2.1 log-units (P < 0.001) and GVF improved for each eye with a mean improvement of 221 sum degrees (P < 0.001). BCVA improved from logMAR 0.98 at baseline to logMAR 0.83 at last follow-up (P < 0.001). Across 19 eyes of 10 patients included in CST analysis, there was a small but statistically significant 9-μ decrease in mean CST from baseline to last follow-up (P < 0.001). The most common postoperative issues included elevation in intraocular pressure (59%), persistent intraocular inflammation (15%), and vitreous opacities (26%) that resolved over a period of months. CONCLUSIONS: This report provides some of the earliest longitudinal real-world evidence of the pediatric safety and efficacy of voretigene neparvovec using multiple functional and structural measures of the retina. Outcomes demonstrate significant improvements in visual function consistent with clinical trial results.
PURPOSE: To investigate real-world safety and efficacy of voretigene neparvovec gene therapy administration in pediatric patients with biallelic RPE65 disease-causing variants. METHODS: A retrospective study of 27 eyes of 14 patients with RPE65-associated Leber congenital amaurosis examined postoperative complications and longitudinal changes in photoreceptor function following treatment with subretinal injection of voretigene neparvovec. Full-field stimulus threshold testing (FST), Goldmann visual fields (GVF), best-corrected visual acuity (BCVA), and central subfield thickness (CST) on optical coherence tomography (OCT) scans were collected preoperatively and up to 12 months posttreatment. RESULTS: Baseline through 6-12 month follow-up FST and GVF data were obtained for 13 eyes of 7 patients. FST improved for each eye after treatment with a mean improvement of 2.1 log-units (P < 0.001) and GVF improved for each eye with a mean improvement of 221 sum degrees (P < 0.001). BCVA improved from logMAR 0.98 at baseline to logMAR 0.83 at last follow-up (P < 0.001). Across 19 eyes of 10 patients included in CST analysis, there was a small but statistically significant 9-μ decrease in mean CST from baseline to last follow-up (P < 0.001). The most common postoperative issues included elevation in intraocular pressure (59%), persistent intraocular inflammation (15%), and vitreous opacities (26%) that resolved over a period of months. CONCLUSIONS: This report provides some of the earliest longitudinal real-world evidence of the pediatric safety and efficacy of voretigene neparvovec using multiple functional and structural measures of the retina. Outcomes demonstrate significant improvements in visual function consistent with clinical trial results.
Authors: Stephen Russell; Jean Bennett; Jennifer A Wellman; Daniel C Chung; Zi-Fan Yu; Amy Tillman; Janet Wittes; Julie Pappas; Okan Elci; Sarah McCague; Dominique Cross; Kathleen A Marshall; Jean Walshire; Taylor L Kehoe; Hannah Reichert; Maria Davis; Leslie Raffini; Lindsey A George; F Parker Hudson; Laura Dingfield; Xiaosong Zhu; Julia A Haller; Elliott H Sohn; Vinit B Mahajan; Wanda Pfeifer; Michelle Weckmann; Chris Johnson; Dina Gewaily; Arlene Drack; Edwin Stone; Katie Wachtel; Francesca Simonelli; Bart P Leroy; J Fraser Wright; Katherine A High; Albert M Maguire Journal: Lancet Date: 2017-07-14 Impact factor: 79.321
Authors: Albert M Maguire; Stephen Russell; Jennifer A Wellman; Daniel C Chung; Zi-Fan Yu; Amy Tillman; Janet Wittes; Julie Pappas; Okan Elci; Kathleen A Marshall; Sarah McCague; Hannah Reichert; Maria Davis; Francesca Simonelli; Bart P Leroy; J Fraser Wright; Katherine A High; Jean Bennett Journal: Ophthalmology Date: 2019-06-22 Impact factor: 12.079
Authors: Daniel C Chung; Sarah McCague; Zi-Fan Yu; Satha Thill; Julie DiStefano-Pappas; Jean Bennett; Dominique Cross; Kathleen Marshall; Jennifer Wellman; Katherine A High Journal: Clin Exp Ophthalmol Date: 2017-08-31 Impact factor: 4.207
Authors: Anneke I den Hollander; Ronald Roepman; Robert K Koenekoop; Frans P M Cremers Journal: Prog Retin Eye Res Date: 2008-06-01 Impact factor: 21.198
Authors: Jean Bennett; Jennifer Wellman; Kathleen A Marshall; Sarah McCague; Manzar Ashtari; Julie DiStefano-Pappas; Okan U Elci; Daniel C Chung; Junwei Sun; J Fraser Wright; Dominique R Cross; Puya Aravand; Laura L Cyckowski; Jeannette L Bennicelli; Federico Mingozzi; Alberto Auricchio; Eric A Pierce; Jason Ruggiero; Bart P Leroy; Francesca Simonelli; Katherine A High; Albert M Maguire Journal: Lancet Date: 2016-06-30 Impact factor: 79.321