Safety and Efficacy Study of rAAV2-ND4 Treatment of Leber Hereditary Optic Neuropathy (LHON) (rAAV2-ND4)

• The Best Corrected Visual Acuity(BCVA) [ Time Frame: Up to 3 years ]
• Results of CD3/CD4/CD8 Test [ Time Frame: up to 6 months ]
  The mean percentage of CD3+/CD4+/CD8+ test before and after treatment

• Intraocular Pressure; [ Time Frame: Up to 3 years ]
• Neutralizing Antibody Assay [ Time Frame: up to 3 years ]
  The mean of Neutralizing antibody assay of 8 patients before and after treatment
• Average RNFL Thickness Througth Optical Coherence Tomography(OCT) Test [ Time Frame: Up to 3 years ]
  Average RNFL thickness of 8 patients througth Optical coherence tomography(OCT) test before and after treatment
• Computerized Visual Field(MD: Mean Deviation, the Value Close to 0 Regarded Normal) [ Time Frame: up to 3 years ]
  MD: mean deviation, the value Close to 0 regarded normal.VFI/MD：The bigger one was more close to the normal value.
• Computerized Visual Field(VFI: Visual Field Index ,the Value Close to 100% Regarded Normal) [ Time Frame: up to 3 years ]
  VFI: visual field index ,the value Close to 100% regarded normal. VFI/MD：The bigger one was more close to the normal value.

• Intraocular pressure [ Time Frame: 6 month ]
  Intraocular pressure testing before and after treatment
• VEP [ Time Frame: 6 month ]
  VEP testing before and after treatment
• computerized visual field [ Time Frame: 6 month ]
  computerized visual field testing before and after treatment
• OCT [ Time Frame: 6 month ]
  OCT testing before and after treatment
• ERG [ Time Frame: 6 month ]
  ERG testing before and after treatment
• Liver and kidney function in plasma [ Time Frame: 6 month ]
  Liver and kidney function in plasma testing before and after treatment
• ELISA [ Time Frame: 6 month ]
  Antibodies against AAV2 capsid was analyzed by ELISA using serum samples collected before injection and different time points after the injection.

Leber's Hereditary Optic Neuropathy (LHON) is a maternally inherited ocular disorder associated with a mutation in mtDNA . The common manifestation is visual loss which caused by the respiratory chain enzymes complex dysfunction resulting in increased oxidative stress enzymes production.

Material and Method Seven patients with 11778 LHON mutation were randomly treated with a Single IVT Injection of recombinant Adeno-Associated Virus-NADH dehydrogenase, subunit 4 (complex I)（rAAV2-ND4)（0.05ml).The dose was 5 × 10^9 vg/0.05 mL for patients younger than 12 years old, and 1 × 10^10 vg/0.05 mL for patients older than 12 years old. The visual acuity, visual evoked potential （VEP）,optical coherence tomography（ OCT）, computerized visual field, electroretinograms(ERG), retinal nerve fiber layer(RNFL)and Liver and kidney function in plasma were compared before and after treatment at 1,3,and 6, months interval.

• Carelli V, Ross-Cisneros FN, Sadun AA. Mitochondrial dysfunction as a cause of optic neuropathies. Prog Retin Eye Res. 2004 Jan;23(1):53-89. Review.
• Mackey DA, Oostra RJ, Rosenberg T, Nikoskelainen E, Bronte-Stewart J, Poulton J, Harding AE, Govan G, Bolhuis PA, Norby S. Primary pathogenic mtDNA mutations in multigeneration pedigrees with Leber hereditary optic neuropathy. Am J Hum Genet. 1996 Aug;59(2):481-5.
• Wallace DC, Singh G, Lott MT, Hodge JA, Schurr TG, Lezza AM, Elsas LJ 2nd, Nikoskelainen EK. Mitochondrial DNA mutation associated with Leber's hereditary optic neuropathy. Science. 1988 Dec 9;242(4884):1427-30.
• Oguchi Y. [Past, present, and future in Leber's hereditary optic neuropathy]. Nippon Ganka Gakkai Zasshi. 2001 Dec;105(12):809-27. Review. Japanese.
• Cui G, Ding H, Xu Y, Li B, Wang DW. Applications of the method of high resolution melting analysis for diagnosis of Leber's disease and the three primary mutation spectrum of LHON in the Han Chinese population. Gene. 2013 Jan 1;512(1):108-12. doi: 10.1016/j.gene.2012.09.110. Epub 2012 Oct 9.
• Mashima Y, Kigasawa K, Wakakura M, Oguchi Y. Do idebenone and vitamin therapy shorten the time to achieve visual recovery in Leber hereditary optic neuropathy? J Neuroophthalmol. 2000 Sep;20(3):166-70.
• Carelli V, Barboni P, Zacchini A, Mancini R, Monari L, Cevoli S, Liguori R, Sensi M, Lugaresi E, Montagna P. Leber's Hereditary Optic Neuropathy (LHON) with 14484/ND6 mutation in a North African patient. J Neurol Sci. 1998 Oct 8;160(2):183-8.
• Barnils N, Mesa E, Muñoz S, Ferrer-Artola A, Arruga J. [Response to idebenone and multivitamin therapy in Leber's hereditary optic neuropathy]. Arch Soc Esp Oftalmol. 2007 Jun;82(6):377-80. Spanish.
• Angebault C, Gueguen N, Desquiret-Dumas V, Chevrollier A, Guillet V, Verny C, Cassereau J, Ferre M, Milea D, Amati-Bonneau P, Bonneau D, Procaccio V, Reynier P, Loiseau D. Idebenone increases mitochondrial complex I activity in fibroblasts from LHON patients while producing contradictory effects on respiration. BMC Res Notes. 2011 Dec 22;4:557. doi: 10.1186/1756-0500-4-557.
• Klopstock T, Yu-Wai-Man P, Dimitriadis K, Rouleau J, Heck S, Bailie M, Atawan A, Chattopadhyay S, Schubert M, Garip A, Kernt M, Petraki D, Rummey C, Leinonen M, Metz G, Griffiths PG, Meier T, Chinnery PF. A randomized placebo-controlled trial of idebenone in Leber's hereditary optic neuropathy. Brain. 2011 Sep;134(Pt 9):2677-86. doi: 10.1093/brain/awr170. Epub 2011 Jul 25.
• Carelli V, La Morgia C, Valentino ML, Rizzo G, Carbonelli M, De Negri AM, Sadun F, Carta A, Guerriero S, Simonelli F, Sadun AA, Aggarwal D, Liguori R, Avoni P, Baruzzi A, Zeviani M, Montagna P, Barboni P. Idebenone treatment in Leber's hereditary optic neuropathy. Brain. 2011 Sep;134(Pt 9):e188. doi: 10.1093/brain/awr180. Epub 2011 Aug 2.
• Sadun AA, Chicani CF, Ross-Cisneros FN, Barboni P, Thoolen M, Shrader WD, Kubis K, Carelli V, Miller G. Effect of EPI-743 on the clinical course of the mitochondrial disease Leber hereditary optic neuropathy. Arch Neurol. 2012 Mar;69(3):331-8. doi: 10.1001/archneurol.2011.2972.
• Newman NJ. Treatment of Leber hereditary optic neuropathy. Brain. 2011 Sep;134(Pt 9):2447-50. doi: 10.1093/brain/awr192. Epub 2011 Aug 22.
• Maguire AM, Simonelli F, Pierce EA, Pugh EN Jr, Mingozzi F, Bennicelli J, Banfi S, Marshall KA, Testa F, Surace EM, Rossi S, Lyubarsky A, Arruda VR, Konkle B, Stone E, Sun J, Jacobs J, Dell'Osso L, Hertle R, Ma JX, Redmond TM, Zhu X, Hauck B, Zelenaia O, Shindler KS, Maguire MG, Wright JF, Volpe NJ, McDonnell JW, Auricchio A, High KA, Bennett J. Safety and efficacy of gene transfer for Leber's congenital amaurosis. N Engl J Med. 2008 May 22;358(21):2240-8. doi: 10.1056/NEJMoa0802315. Epub 2008 Apr 27.
• Bainbridge JW, Smith AJ, Barker SS, Robbie S, Henderson R, Balaggan K, Viswanathan A, Holder GE, Stockman A, Tyler N, Petersen-Jones S, Bhattacharya SS, Thrasher AJ, Fitzke FW, Carter BJ, Rubin GS, Moore AT, Ali RR. Effect of gene therapy on visual function in Leber's congenital amaurosis. N Engl J Med. 2008 May 22;358(21):2231-9. doi: 10.1056/NEJMoa0802268. Epub 2008 Apr 27.
• Bonnet C, Kaltimbacher V, Ellouze S, Augustin S, Bénit P, Forster V, Rustin P, Sahel JA, Corral-Debrinski M. Allotopic mRNA localization to the mitochondrial surface rescues respiratory chain defects in fibroblasts harboring mitochondrial DNA mutations affecting complex I or v subunits. Rejuvenation Res. 2007 Jun;10(2):127-44.
• Ellouze S, Augustin S, Bouaita A, Bonnet C, Simonutti M, Forster V, Picaud S, Sahel JA, Corral-Debrinski M. Optimized allotopic expression of the human mitochondrial ND4 prevents blindness in a rat model of mitochondrial dysfunction. Am J Hum Genet. 2008 Sep;83(3):373-87. doi: 10.1016/j.ajhg.2008.08.013. Epub 2008 Sep 4.
• Koilkonda RD, Yu H, Chou TH, Feuer WJ, Ruggeri M, Porciatti V, Tse D, Hauswirth WW, Chiodo V, Boye SL, Lewin AS, Neuringer M, Renner L, Guy J. Safety and effects of the vector for the Leber hereditary optic neuropathy gene therapy clinical trial. JAMA Ophthalmol. 2014 Apr 1;132(4):409-20. doi: 10.1001/jamaophthalmol.2013.7630.
• Koilkonda R, Yu H, Talla V, Porciatti V, Feuer WJ, Hauswirth WW, Chiodo V, Erger KE, Boye SL, Lewin AS, Conlon TJ, Renner L, Neuringer M, Detrisac C, Guy J. LHON gene therapy vector prevents visual loss and optic neuropathy induced by G11778A mutant mitochondrial DNA: biodistribution and toxicology profile. Invest Ophthalmol Vis Sci. 2014 Oct 23;55(12):7739-53. doi: 10.1167/iovs.14-15388.
• Shi H, Gao J, Pei H, Liu R, Hu WK, Wan X, Li T, Li B. Adeno-associated virus-mediated gene delivery of the human ND4 complex I subunit in rabbit eyes. Clin Exp Ophthalmol. 2012 Dec;40(9):888-94. doi: 10.1111/j.1442-9071.2012.02815.x. Epub 2012 Jul 2.
• Mays LE, Vandenberghe LH, Xiao R, Bell P, Nam HJ, Agbandje-McKenna M, Wilson JM. Adeno-associated virus capsid structure drives CD4-dependent CD8+ T cell response to vector encoded proteins. J Immunol. 2009 May 15;182(10):6051-60. doi: 10.4049/jimmunol.0803965.
• Hsu TK, Wang AG, Yen MY, Liu JH. Leber's hereditary optic neuropathy masquerading as optic neuritis with spontaneous visual recovery. Clin Exp Optom. 2014 Jan;97(1):84-6. doi: 10.1111/cxo.12100. Epub 2013 Aug 1.
• Leo-Kottler B, Christ-Adler M. [Leber optic neuropathy in women and children]. Ophthalmologe. 1999 Nov;96(11):698-701. German.
• Li H, Tuyishime S, Wu TL, Giles-Davis W, Zhou D, Xiao W, High KA, Ertl HC. Adeno-associated virus vectors serotype 2 induce prolonged proliferation of capsid-specific CD8+ T cells in mice. Mol Ther. 2011 Mar;19(3):536-46. doi: 10.1038/mt.2010.267. Epub 2010 Dec 14.
• Giordano C, Montopoli M, Perli E, Orlandi M, Fantin M, Ross-Cisneros FN, Caparrotta L, Martinuzzi A, Ragazzi E, Ghelli A, Sadun AA, d'Amati G, Carelli V. Oestrogens ameliorate mitochondrial dysfunction in Leber's hereditary optic neuropathy. Brain. 2011 Jan;134(Pt 1):220-34. doi: 10.1093/brain/awq276. Epub 2010 Oct 13.
• Testa F, Maguire AM, Rossi S, Pierce EA, Melillo P, Marshall K, Banfi S, Surace EM, Sun J, Acerra C, Wright JF, Wellman J, High KA, Auricchio A, Bennett J, Simonelli F. Three-year follow-up after unilateral subretinal delivery of adeno-associated virus in patients with Leber congenital Amaurosis type 2. Ophthalmology. 2013 Jun;120(6):1283-91. doi: 10.1016/j.ophtha.2012.11.048. Epub 2013 Mar 6.
• Yang S, He H, Zhu Y, Wan X, Zhou LF, Wang J, Wang WF, Liu L, Li B. Chemical and material communication between the optic nerves in rats. Clin Exp Ophthalmol. 2015 Nov;43(8):742-8. doi: 10.1111/ceo.12547. Epub 2015 Jun 25.
• Ghelli A, Porcelli AM, Zanna C, Martinuzzi A, Carelli V, Rugolo M. Protection against oxidant-induced apoptosis by exogenous glutathione in Leber hereditary optic neuropathy cybrids. Invest Ophthalmol Vis Sci. 2008 Feb;49(2):671-6. doi: 10.1167/iovs.07-0880.
• Yu-Wai-Man P, Griffiths PG, Chinnery PF. Mitochondrial optic neuropathies - disease mechanisms and therapeutic strategies. Prog Retin Eye Res. 2011 Mar;30(2):81-114. doi: 10.1016/j.preteyeres.2010.11.002. Epub 2010 Nov 26. Review.
• Koilkonda RD, Guy J. Leber's Hereditary Optic Neuropathy-Gene Therapy: From Benchtop to Bedside. J Ophthalmol. 2011;2011:179412. doi: 10.1155/2011/179412. Epub 2010 Dec 26.
• Wan X, Pei H, Zhao MJ, Yang S, Hu WK, He H, Ma SQ, Zhang G, Dong XY, Chen C, Wang DW, Li B. Efficacy and Safety of rAAV2-ND4 Treatment for Leber's Hereditary Optic Neuropathy. Sci Rep. 2016 Feb 19;6:21587. doi: 10.1038/srep21587.

Inclusion Criteria:

1. comply with Leber hereditary optic neuropathy diagnostic criteria.
2. in patients with informed consent, voluntary participation.
3. signed informed consent.
4. 8 ≤ Age ≤ 60 years old, good health, the patient can tolerate local anesthesia surgery.
5. to comply with doctor's instructions, can in the time of referral.

Exclusion Criteria:

1. Cardiopulmonary and renal function in severe weakness, cancer, a variety of bleeding disorders, acute sensing disease, high fever, high fever disease, women during pregnancy, heart disease, such as post-operative recovery period.
2. Are participating in other clinical studies of patients.
3. Patients with mental disorders.