Skip to main content

Novel Therapies in Development for Diabetic Macular Edema

Abstract

Diabetic macular edema (DME) secondary to diabetic retinopathy (DR) is a major cause for functional visual loss in the developed world. Laser photocoagulation has been used for decades in the treatment of DME. However, the advent of anti-vascular endothelial growth factor (anti-VEGF) has revolutionized the treatment of DME. Three important anti-VEGF agents whose efficacy has been well established via phase III clinical trials include ranibizumab, bevacizumab, and aflibercept. However, even in the era of anti-VEGF therapies, there are some challenges that retina specialists have to confront in managing patients with DME. These include the need for frequent treatment and an unpredictable response to therapy. There is evidence to suggest that pathways other than the VEGF pathway may be playing a role in the development of DME. Thus, extensive research is focused on development of novel agents that target these pathways. This review focuses on novel therapeutic agents in development, which may be used as a monotherapy or in combination with anti-VEGF agents, for the management of DME in the future.

This is a preview of subscription content, access via your institution.

References

Papers of particular interest, published recently, have been highlighted as: • Of importance •• Of major importance

  1. International Diabetes Federation. IDF Diabetes Atlas, 5th edition. 2011. http://www.idf.org/diabetesatlas.

  2. Bourne RR, Stevens GA, White RA, Smith JL, Flaxman SR, Price H, et al. Causes of vision loss worldwide, 1990–2010: a systematic analysis. Lancet Global Health. 2013;1(6):e339–49. doi:10.1016/s2214-109x(13)70113-x.

    PubMed  Article  Google Scholar 

  3. Sanchez-Thorin JC. The epidemiology of diabetes mellitus and diabetic retinopathy. Int Ophthalmol Clin. 1998;38(2):11–8.

    CAS  PubMed  Article  Google Scholar 

  4. Boyer DS, Hopkins JJ, Sorof J, Ehrlich JS. Anti-vascular endothelial growth factor therapy for diabetic macular edema. Ther Adv Endocrinol Metab. 2013;4(6):151–69.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  5. Klein BE. Overview of epidemiologic studies of diabetic retinopathy. Ophthalmic Epidemiol. 2007;14(4):179–83. doi:10.1080/09286580701396720.

    PubMed  Article  Google Scholar 

  6. Agarwal A, Sarwar S, Sepah YJ, Nguyen QD. What have we learnt about the management of diabetic macular edema in the antivascular endothelial growth factor and corticosteroid era? Curr Opin Ophthalmol. 2015;26(3):177–83. doi:10.1097/icu.0000000000000152. This review article summarizes the lessons learnt in the management of diabetic macular edema based on the level I evidence from various large, multicenter clinical trials.

    PubMed  Article  Google Scholar 

  7. Arevalo JF. Diabetic macular edema: current management 2013. World J Diab. 2013;4(6):231–3. doi:10.4239/wjd.v4.i6.231.

    Article  Google Scholar 

  8. Nguyen QD, Brown DM, Marcus DM, Boyer DS, Patel S, Feiner L, et al. Ranibizumab for diabetic macular edema: results from 2 phase III randomized trials: RISE and RIDE. Ophthalmology. 2012;119(4):789–801. doi:10.1016/j.ophtha.2011.12.039. This is a landmark trial that provided evidence of the safety and efficacy of ranibizumab in the treatment of diabetic macular edema.

    PubMed  Article  Google Scholar 

  9. Wells JA, Glassman AR, Ayala AR, Jampol LM, Aiello LP, Antoszyk AN, et al. Aflibercept, bevacizumab, or ranibizumab for diabetic macular edema. N Engl J Med. 2015;372(13):1193–203. doi:10.1056/NEJMoa1414264. This is an important study providing head-to-head comparison of three anti-VEGF agents, ranibizumab, aflibercept and bevacizumab in the managament of diabetic macular edema.

    CAS  PubMed  Article  Google Scholar 

  10. Das A, McGuire PG, Rangasamy S, Diabetic Macular Edema. Pathophysiology and novel therapeutic targets. Ophthalmology. 2015. doi:10.1016/j.ophtha.2015.03.024. This study summarizes the pathophysiological mechanisms of microvascular changes in diabetes and potential targets for future therapeutic interventions.

    Google Scholar 

  11. Funatsu H, Noma H, Mimura T, Eguchi S, Hori S. Association of vitreous inflammatory factors with diabetic macular edema. Ophthalmology. 2009;116(1):73–9. doi:10.1016/j.ophtha.2008.09.037.

    PubMed  Article  Google Scholar 

  12. Sultan MB, Zhou D, Loftus J, Dombi T, Ice KS. A phase 2/3, multicenter, randomized, double-masked, 2-year trial of pegaptanib sodium for the treatment of diabetic macular edema. Ophthalmology. 2011;118(6):1107–18. doi:10.1016/j.ophtha.2011.02.045.

    PubMed  Article  Google Scholar 

  13. Brown DM, Nguyen QD, Marcus DM, Boyer DS, Patel S, Feiner L, et al. Long-term outcomes of ranibizumab therapy for diabetic macular edema: the 36-month results from two phase III trials: RISE and RIDE. Ophthalmology. 2013;120(10):2013–22. doi:10.1016/j.ophtha.2013.02.034. This study provides the long-term beneficial effects of ranibizumab on diabetic macular edema and its efficacy in improving the grade of diabetic retinopathy.

    PubMed  Article  Google Scholar 

  14. Rajendram R, Fraser-Bell S, Kaines A, Michaelides M, Hamilton RD, Esposti SD, et al. A 2-year prospective randomized controlled trial of intravitreal bevacizumab or laser therapy (BOLT) in the management of diabetic macular edema: 24-month data: report 3. Arch Ophthalmol. 2012;130(8):972–9. doi:10.1001/archophthalmol.2012.393.

    CAS  PubMed  Article  Google Scholar 

  15. Korobelnik JF, Do DV, Schmidt-Erfurth U, Boyer DS, Holz FG, Heier JS, et al. Intravitreal aflibercept for diabetic macular edema. Ophthalmology. 2014;121(11):2247–54. doi:10.1016/j.ophtha.2014.05.006. This landmark clinical trial provides level I evidence of the safety and efficacy of aflibercept in the management of diabetic macular edema.

    PubMed  Article  Google Scholar 

  16. Do DV, Sepah YJ, Boyer D, et al. Month-6 Primary Outcomes of the READ-3 Study (Ranibizumab for Edema of the mAcula in Diabetes – Protocol 3 with High Dose Ranibizumab). Eye (London, England). 2015 Jul 31. doi:10.1038/eye.2015.142. This multicenter clinical trial assesses the efficacy of high dose intravitreal ranibizumab in inhibiting VEGF in eyes with diabetic macular edema.

  17. Humayun M, Santos A, Altamirano JC, Ribeiro R, Gonzalez R, de la Rosa A, et al. Implantable micropump for drug delivery in patients with diabetic macular edema. Translat Vis Sci Technol. 2014;3(6):5. doi:10.1167/tvst.3.6.5.

    Article  Google Scholar 

  18. Andres-Guerrero V, Zong M, Ramsay E, Rojas B, Sarkhel S, Gallego B, et al. Novel biodegradable polyesteramide microspheres for controlled drug delivery in ophthalmology. J Control Release : Off J Control Release Soc. 2015. doi:10.1016/j.jconrel.2015.05.279.

    Google Scholar 

  19. Preliminary safety and efficacy of the PDS-1.0 in patients with neovascular age related macular degeneration (AMD). 2010. https://clinicaltrials.gov/ct2/show/NCT01186432. Accessed 5/31/2015.

  20. Wimmer T, Lorenz B, Stieger K. Functional characterization of AAV-expressed recombinant anti-VEGF single-chain variable fragments in vitro. J Ocul Pharmacol Ther : Off J Assoc Ocul Pharmacol Ther. 2015. doi:10.1089/jop.2014.0125.

    Google Scholar 

  21. Elman MJ, Aiello LP, Beck RW, Bressler NM, Bressler SB, Edwards AR, et al. Randomized trial evaluating ranibizumab plus prompt or deferred laser or triamcinolone plus prompt laser for diabetic macular edema. Ophthalmology. 2010;117(6):1064–77. doi:10.1016/j.ophtha.2010.02.031. e35.

    PubMed Central  PubMed  Article  Google Scholar 

  22. Sadiq MA, Agarwal A, Soliman MK, Hanout M, Sarwar S, Do DV et al. Sustained-release fluocinolone acetonide intravitreal insert for macular edema: clinical pharmacology and safety evaluation. Expert opinion on drug safety. 2015:1–10. doi:10.1517/14740338.2015.1041916

  23. Cunha-Vaz J, Ashton P, Iezzi R, Campochiaro P, Dugel PU, Holz FG, et al. Sustained delivery fluocinolone acetonide vitreous implants: long-term benefit in patients with chronic diabetic macular edema. Ophthalmology. 2014;121(10):1892–903. doi:10.1016/j.ophtha.2014.04.019. This is a landmark clinical trial that led to the approval of sustained-release fluocinolone intravitreal implant, Iluvien®, for the treatment of diabetic macular edema.

    PubMed  Article  Google Scholar 

  24. Boyer DS, Yoon YH, Belfort Jr R, Bandello F, Maturi RK, Augustin AJ, et al. Three-year, randomized, sham-controlled trial of dexamethasone intravitreal implant in patients with diabetic macular edema. Ophthalmology. 2014;121(10):1904–14. doi:10.1016/j.ophtha.2014.04.024. This study demonstrates the efficacy of sustained-release dexamethasone intravitreal implant in the management of diabetic macular edema.

    PubMed  Article  Google Scholar 

  25. Efficacy and safety of betamethasone microsphere in patients with diabetic macular edema (TSUBASA). 2011. https://clinicaltrials.gov/ct2/show/NCT01411254. Accessed 5/31/2015.

  26. Tanito M, Hara K, Takai Y, Matsuoka Y, Nishimura N, Jansook P, et al. Topical dexamethasone-cyclodextrin microparticle eye drops for diabetic macular edema. Invest Ophthalmol Vis Sci. 2011;52(11):7944–8. doi:10.1167/iovs.11-8178.

    CAS  PubMed  Article  Google Scholar 

  27. Kang-Mieler JJ, Osswald CR, Mieler WF. Advances in ocular drug delivery: emphasis on the posterior segment. Expert Opin Drug Deliv. 2014;11(10):1647–60. doi:10.1517/17425247.2014.935338.

    CAS  PubMed  Article  Google Scholar 

  28. Early Treatment Diabetic Retinopathy Study research group. Photocoagulation for diabetic macular edema. Early Treatment Diabetic Retinopathy Study report number 1. Arch Ophthalmol. 1985;103(12):1796–806.

    Article  Google Scholar 

  29. Elman MJ, Qin H, Aiello LP, Beck RW, Bressler NM, Ferris 3rd FL, et al. Intravitreal ranibizumab for diabetic macular edema with prompt versus deferred laser treatment: three-year randomized trial results. Ophthalmology. 2012;119(11):2312–8. doi:10.1016/j.ophtha.2012.08.022.

    PubMed  Article  Google Scholar 

  30. Yun SH, Adelman RA. Recent developments in laser treatment of diabetic retinopathy. Middle East African J Ophthalmol. 2015;22(2):157–63. doi:10.4103/0974-9233.150633. This manuscript summarizes various available options in laser therapy for diabetic macular edema.

    Article  Google Scholar 

  31. Luttrull JK, Dorin G. Subthreshold diode micropulse laser photocoagulation (SDM) as invisible retinal phototherapy for diabetic macular edema: a review. Curr Diab Rev. 2012;8(4):274–84.

    Article  Google Scholar 

  32. Kwon YH, Lee DK, Kwon OW. The short-term efficacy of subthreshold Micropulse yellow (577-nm) laser photocoagulation for diabetic macular edema. Korean J Ophthalmol : KJO. 2014;28(5):379–85. doi:10.3341/kjo.2014.28.5.379.

    PubMed Central  PubMed  Article  Google Scholar 

  33. Vujosevic S, Martini F, Longhin E, Convento E, Cavarzeran F, Midena E. Subthreshold micropulse yellow laser versus subthreshold micropulse infrared laser in center-involving diabetic macular edema. (Philadelphia, Pa): Retina; 2015. doi:10.1097/iae.0000000000000521.

    Google Scholar 

  34. Inagaki K, Ohkoshi K, Ohde S, Deshpande GA, Ebihara N, Murakami A. Comparative efficacy of pure yellow (577-nm) and 810-nm subthreshold micropulse laser photocoagulation combined with yellow (561-577-nm) direct photocoagulation for diabetic macular edema. Jpn J Ophthalmol. 2015;59(1):21–8. doi:10.1007/s10384-014-0361-1.

    CAS  PubMed  Article  Google Scholar 

  35. Figueira J, Khan J, Nunes S, Sivaprasad S, Rosa A, de Abreu JF, et al. Prospective randomised controlled trial comparing sub-threshold micropulse diode laser photocoagulation and conventional green laser for clinically significant diabetic macular oedema. Br J Ophthalmol. 2009;93(10):1341–4. doi:10.1136/bjo.2008.146712.

    CAS  PubMed  Article  Google Scholar 

  36. Vujosevic S, Bottega E, Casciano M, Pilotto E, Convento E, Midena E. Microperimetry and fundus autofluorescence in diabetic macular edema: subthreshold micropulse diode laser versus modified early treatment diabetic retinopathy study laser photocoagulation. Retina (Philadelphia, Pa). 2010;30(6):908–16. doi: 10.1097/IAE.0b013e3181c96986.

  37. Lavinsky D, Cardillo JA, Melo Jr LA, Dare A, Farah ME, Belfort Jr R. Randomized clinical trial evaluating mETDRS versus normal or high-density micropulse photocoagulation for diabetic macular edema. Invest Ophthalmol Vis Sci. 2011;52(7):4314–23. doi:10.1167/iovs.10-6828.

    PubMed  Article  Google Scholar 

  38. Venkatesh P, Ramanjulu R, Azad R, Vohra R, Garg S. Subthreshold micropulse diode laser and double frequency neodymium: YAG laser in treatment of diabetic macular edema: a prospective, randomized study using multifocal electroretinography. Photomed Laser Surg. 2011;29(11):727–33. doi:10.1089/pho.2010.2830.

    CAS  PubMed  Article  Google Scholar 

  39. Jung JJ, Gallego-Pinazo R, Lleo-Perez A, Huz JI, Barbazetto IA. NAVILAS laser system focal laser treatment for diabetic macular edema—one year results of a case series. Open Ophthalmol J. 2013;7:48–53. doi:10.2174/1874364101307010048.

    PubMed Central  PubMed  Article  Google Scholar 

  40. Neubauer AS, Langer J, Liegl R, Haritoglou C, Wolf A, Kozak I, et al. Navigated macular laser decreases retreatment rate for diabetic macular edema: a comparison with conventional macular laser. Clin Ophthalmol (Auckland, NZ). 2013;7:121–8. doi:10.2147/opth.s38559.

    Google Scholar 

  41. Nguyen QD, Tatlipinar S, Shah SM, Haller JA, Quinlan E, Sung J, et al. Vascular endothelial growth factor is a critical stimulus for diabetic macular edema. Am J Ophthalmol. 2006;142(6):961–9. doi:10.1016/j.ajo.2006.06.068.

    CAS  PubMed  Article  Google Scholar 

  42. Noda K, Nakao S, Zandi S, Engelstadter V, Mashima Y, Hafezi-Moghadam A. Vascular adhesion protein-1 regulates leukocyte transmigration rate in the retina during diabetes. Exp Eye Res. 2009;89(5):774–81. doi:10.1016/j.exer.2009.07.010.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  43. Almulki L, Noda K, Nakao S, Hisatomi T, Thomas KL, Hafezi-Moghadam A. Localization of vascular adhesion protein-1 (VAP-1) in the human eye. Exp Eye Res. 2010;90(1):26–32. doi:10.1016/j.exer.2009.09.005.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  44. Murata M, Noda K, Fukuhara J, Kanda A, Kase S, Saito W, et al. Soluble vascular adhesion protein-1 accumulates in proliferative diabetic retinopathy. Invest Ophthalmol Vis Sci. 2012;53(7):4055–62. doi:10.1167/iovs.12-9857.

    CAS  PubMed  Article  Google Scholar 

  45. Yoshikawa N, Noda K, Ozawa Y, Tsubota K, Mashima Y, Ishida S. Blockade of vascular adhesion protein-1 attenuates choroidal neovascularization. Mol Vis. 2012;18:593–600.

    PubMed Central  CAS  PubMed  Google Scholar 

  46. Inoue T, Morita M, Tojo T, Nagashima A, Moritomo A, Miyake H. Novel 1H-imidazol-2-amine derivatives as potent and orally active vascular adhesion protein-1 (VAP-1) inhibitors for diabetic macular edema treatment. Bioorg Med Chem. 2013;21(13):3873–81. doi:10.1016/j.bmc.2013.04.011.

    CAS  PubMed  Article  Google Scholar 

  47. A Study to Evaluate ASP8232 in Reducing Central Retinal Thickness in Subjects With Diabetic Macular Edema (DME) (The VIDI study). 2015. https://clinicaltrials.gov/ct2/show/NCT02302079. Accessed 6/1/2015.

  48. Lamberton RP, Goodman AD, Kassoff A, Rubin CL, Treble DH, Saba TM, et al. Von Willebrand factor (VIII R:Ag), fibronectin, and insulin-like growth factors I and II in diabetic retinopathy and nephropathy. Diabetes. 1984;33(2):125–9.

    CAS  PubMed  Article  Google Scholar 

  49. Boulton M, Gregor Z, McLeod D, Charteris D, Jarvis-Evans J, Moriarty P, et al. Intravitreal growth factors in proliferative diabetic retinopathy: correlation with neovascular activity and glycaemic management. Br J Ophthalmol. 1997;81(3):228–33.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  50. Waldbillig RJ, Jones BE, Schoen TJ, Moshayedi P, Heidersbach S, Bitar MS, et al. Vitreal insulin-like growth factor binding proteins (IGFBPs) are increased in human and animal diabetics. Curr Eye Res. 1994;13(7):539–46. doi:10.3109/02713689408999886.

    CAS  PubMed  Article  Google Scholar 

  51. Haurigot V, Villacampa P, Ribera A, Llombart C, Bosch A, Nacher V, et al. Increased intraocular insulin-like growth factor-I triggers blood-retinal barrier breakdown. J Biol Chem. 2009;284(34):22961–9. doi:10.1074/jbc.M109.014787.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  52. Ringholm L, Vestgaard M, Laugesen CS, Juul A, Damm P, Mathiesen ER. Pregnancy-induced increase in circulating IGF-I is associated with progression of diabetic retinopathy in women with type 1 diabetes. Growth Hormon IGF Res : Off J Growth Hormon Res Soc Int IGF Res Soc. 2011;21(1):25–30. doi:10.1016/j.ghir.2010.12.001.

    CAS  Article  Google Scholar 

  53. A phase 1, open-label study of teprotumumab in patients with diabetic macular edema (DME). 2014. https://clinicaltrials.gov/ct2/show/NCT02103283. Accessed 5/30/2015.

  54. Dong N, Xu B, Wang B, Chu L, Tang X. Aqueous cytokines as predictors of macular edema in patients with diabetes following uncomplicated phacoemulsification cataract surgery. Bio Med Res Int. 2015;2015:126984. doi:10.1155/2015/126984.

    Google Scholar 

  55. Abu el Asrar AM, Maimone D, Morse PH, Gregory S, Reder AT. Cytokines in the vitreous of patients with proliferative diabetic retinopathy. Am J Ophthalmol. 1992;114(6):731–6.

    CAS  PubMed  Article  Google Scholar 

  56. Yuuki T, Kanda T, Kimura Y, Kotajima N, Tamura J, Kobayashi I, et al. Inflammatory cytokines in vitreous fluid and serum of patients with diabetic vitreoretinopathy. J Diabetes Complicat. 2001;15(5):257–9.

    CAS  PubMed  Article  Google Scholar 

  57. Kowluru RA, Odenbach S. Role of interleukin-1beta in the pathogenesis of diabetic retinopathy. Br J Ophthalmol. 2004;88(10):1343–7. doi:10.1136/bjo.2003.038133.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  58. Schmidt M, Tisdale A, Lowden P, Kovalchin J, Furfine ES. Optimized IL-6 blockade for the treatment of diabetic macular edema. Invest Ophthalmol Vis Sci. 2014;55(13):1062.

    Google Scholar 

  59. Zhu D, Zhu H, Wang C, Yang D. Intraocular soluble intracellular adhesion molecule-1 correlates with subretinal fluid height of diabetic macular edema. Indian J Ophthalmol. 2014;62(3):295–8. doi:10.4103/0301-4738.111184.

    PubMed Central  PubMed  Article  Google Scholar 

  60. Dong L, Lv XY, Wang BJ, Wang YQ, Mu H, Feng ZL, et al. Association of monocyte chemoattractant protein-1 (MCP-1)2518A/G polymorphism with proliferative diabetic retinopathy in northern Chinese type 2 diabetes. Graefe's Arch Clin Exp Ophthalmol = Albrecht von Graefes Arch klin Exp Ophthalmol. 2014;252(12):1921–6. doi:10.1007/s00417-014-2651-1.

    CAS  Article  Google Scholar 

  61. Jeon HJ, Choi HJ, Park BH, Lee YH, Oh T. Association of monocyte chemoattractant protein-1 (MCP-1) 2518A/G polymorphism with proliferative diabetic retinopathy in Korean type 2 diabetes. Yonsei Med J. 2013;54(3):621–5. doi:10.3349/ymj.2013.54.3.621.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  62. A phase 2, multi-center study to compare the efficacy and safety of a chemokine CCR2/5 receptor antagonist with ranibizumab in adults with diabetic macular edema. 2013. https://clinicaltrials.gov/ct2/show/NCT01994291. Accessed 5/30/2015.

  63. Peters S, Cree IA, Alexander R, Turowski P, Ockrim Z, Patel J, et al. Angiopoietin modulation of vascular endothelial growth factor: effects on retinal endothelial cell permeability. Cytokine. 2007;40(2):144–50. doi:10.1016/j.cyto.2007.09.001.

    CAS  PubMed  Article  Google Scholar 

  64. Shen J, Frye M, Lee BL, Reinardy JL, McClung JM, Ding K, et al. Targeting VE-PTP activates TIE2 and stabilizes the ocular vasculature. J Clin Invest. 2014;124(10):4564–76. doi:10.1172/jci74527. This study provides evidence of usefulness of targeting the TIE2 angiogenic pathway for treating diabetic macular edema.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  65. Campochiaro PA, Sophie R, Tolentino M, Miller DM, Browning D, Boyer DS, et al. Treatment of diabetic macular edema with an inhibitor of vascular endothelial-protein tyrosine phosphatase that activates Tie2. Ophthalmology. 2015;122(3):545–54. doi:10.1016/j.ophtha.2014.09.023.

    PubMed  Article  Google Scholar 

  66. The TIME-2 study: a phase 2 study of AKB-9778, a novel tie-2 activator, in patients with diabetic macular edema. 2014. https://clinicaltrials.gov/ct2/show/NCT02050828. Accessed 5/31/2015.

  67. Campochiaro PA, Channa R, Berger BB, Heier JS, Brown DM, Fiedler U et al. Treatment of diabetic macular edema with a designed ankyrin repeat protein that binds vascular endothelial growth factor: a phase I/II study. American journal of ophthalmology. 2013;155(4):697–704, e1-2. doi:10.1016/j.ajo.2012.09.032. This multicenter clinical trial established the efficacy of designed ankyrin repeat proteins (DARPins), a novel class of drugs, in treating macular edema due to diabetes.

  68. Pennesi G, Caspi RR. Genetic control of susceptibility in clinical and experimental uveitis. Int Rev Immunol. 2002;21(2–3):67–88.

    CAS  PubMed  Article  Google Scholar 

  69. Heiligenhaus A, Thurau S, Hennig M, Grajewski RS, Wildner G. Anti-inflammatory treatment of uveitis with biologicals: new treatment options that reflect pathogenetic knowledge of the disease. Graefe′s Arch Clin Exp Ophthalmol = Albrecht von Graefes Arch klin Exp Ophthalmol. 2010;248(11):1531–51. doi:10.1007/s00417-010-1485-8.

    Article  Google Scholar 

  70. Gomes Bittencourt M, Sepah YJ, Do DV, Agbedia O, Akhtar A, Liu H, et al. New treatment options for noninfectious uveitis. Dev Ophthalmol. 2012;51:134–61. doi:10.1159/000336338.

    PubMed  Article  Google Scholar 

  71. Maya JR, Sadiq MA, Zapata LJ, Hanout M, Sarwar S, Rajagopalan N, et al. Emerging therapies for noninfectious uveitis: what may be coming to the clinics. J Ophthalmol. 2014;2014:310329. doi:10.1155/2014/310329.

    PubMed Central  PubMed  Article  Google Scholar 

  72. Krishnadev N, Forooghian F, Cukras C, Wong W, Saligan L, Chew EY, et al. Subconjunctival sirolimus in the treatment of diabetic macular edema. Graefe′s Arch Clin Exp Ophthalmol = Albrecht von Graefes Arch klin Exp Ophthalmol. 2011;249(11):1627–33. doi:10.1007/s00417-011-1694-9.

    CAS  Article  Google Scholar 

  73. Dugel PU, Blumenkranz MS, Haller JA, Williams GA, Solley WA, Kleinman DM, et al. A randomized, dose-escalation study of subconjunctival and intravitreal injections of sirolimus in patients with diabetic macular edema. Ophthalmology. 2012;119(1):124–31. doi:10.1016/j.ophtha.2011.07.034.

    PubMed  Article  Google Scholar 

  74. Wang S, Park JK, Duh EJ. Novel targets against retinal angiogenesis in diabetic retinopathy. Curr Diab Rep. 2012;12(4):355–63. doi:10.1007/s11892-012-0289-0.

    PubMed  Article  Google Scholar 

  75. Verma NK, Kelleher D. Adaptor regulation of LFA-1 signaling in T lymphocyte migration: potential druggable targets for immunotherapies? Eur J Immunol. 2014;44(12):3484–99. doi:10.1002/eji.201344428.

    CAS  PubMed  Article  Google Scholar 

  76. A phase 2 randomized, controlled, double-masked, multicenter clinical trial designed to evaluate the safety and exploratory efficacy of Luminate® (ALG-1001) as compared to Avastin® and focal laser photocoagulation in the treatment of diabetic macular edema. 2015. https://clinicaltrials.gov/ct2/show/NCT02348918. Accessed 5/31/2015.

  77. Emerson MV, Lauer AK. Emerging therapies for the treatment of neovascular age-related macular degeneration and diabetic macular edema. BioDrugs : Clin Immunotherapeutics, Biopharmaceuticals Gene The. 2007;21(4):245–57.

    CAS  Article  Google Scholar 

  78. Squalamine for the Treatment in Proliferative Diabetic Retinopathy. 2013. https://clinicaltrials.gov/ct2/show/NCT01769183. Accessed 5/31/2015.

  79. Squalamine lactate eye drops in combination with ranibizumab in patients with diabetic macular edema (DME). 2014. https://clinicaltrials.gov/ct2/show/NCT02349516. Accessed 5/31/2015.

  80. Williams MA, Chakravarthy U. Evidence underlying the clinical management of diabetic macular oedema. Clin Med (London, England). 2013;13(4):353–7. doi:10.7861/clinmedicine.13-4-353.

    Article  Google Scholar 

  81. Lois N, McCarter RV, O′Neill C, Medina RJ, Stitt AW. Endothelial progenitor cells in diabetic retinopathy. Front Endocrinol. 2014;5:44. doi:10.3389/fendo.2014.00044.

    Article  Google Scholar 

  82. Samiy N. Gene therapy for retinal diseases. J Ophthalmic Vis Res. 2014;9(4):506–9. doi:10.4103/2008-322x.150831. This review summarizes various advances in gene therapies for retinal diseases.

    PubMed Central  PubMed  Article  Google Scholar 

  83. Thompson DA, Ali RR, Banin E, Branham KE, Flannery JG, Gamm DM, et al. Advancing therapeutic strategies for inherited retinal degeneration: recommendations from the Monaciano Symposium. Invest Ophthalmol Vis Sci. 2015;56(2):918–31. doi:10.1167/iovs.14-16049.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

  84. Trapani I, Puppo A, Auricchio A. Vector platforms for gene therapy of inherited retinopathies. Prog Retin Eye Res. 2014;43:108–28. doi:10.1016/j.preteyeres.2014.08.001.

    CAS  PubMed  Article  Google Scholar 

  85. El-Bab MF, Zaki NS, Mojaddidi MA, Al-Barry M, El-Beshbishy HA. Diabetic retinopathy is associated with oxidative stress and mitigation of gene expression of antioxidant enzymes. Int J General Med. 2013;6:799–806. doi:10.2147/ijgm.s40665.

    Article  Google Scholar 

  86. Wenick AS, Bressler NM. Diabetic macular edema: current and emerging therapies. Middle East African J Ophthalmol. 2012;19(1):4–12. doi:10.4103/0974-9233.92110.

    Article  Google Scholar 

  87. Nguyen QD, Schachar RA, Nduaka CI, Sperling M, Basile AS, Klamerus KJ, et al. Dose-ranging evaluation of intravitreal siRNA PF-04523655 for diabetic macular edema (the DEGAS study). Invest Ophthalmol Vis Sci. 2012;53(12):7666–74. doi:10.1167/iovs.12-9961.

    PubMed  Article  Google Scholar 

  88. Hu B, Zhang Y, Zeng Q, Han Q, Zhang L, Liu M, et al. Intravitreal injection of ranibizumab and CTGF shRNA improves retinal gene expression and microvessel ultrastructure in a rodent model of diabetes. Int J Mol Sci. 2014;15(1):1606–24. doi:10.3390/ijms15011606.

    PubMed Central  PubMed  Article  Google Scholar 

  89. Mastropasqua R, Toto L, Cipollone F, Santovito D, Carpineto P, Mastropasqua L. Role of microRNAs in the modulation of diabetic retinopathy. Prog Retin Eye Res. 2014. doi:10.1016/j.preteyeres.2014.07.003.

    PubMed  Google Scholar 

  90. Kato M, Castro NE, Natarajan R. MicroRNAs: potential mediators and biomarkers of diabetic complications. Free Radic Biol Med. 2013;64:85–94. doi:10.1016/j.freeradbiomed.2013.06.009.

    PubMed Central  CAS  PubMed  Article  Google Scholar 

Download references

Compliance with Ethics Guidelines

Conflict of Interest

Aniruddha Agarwal, Rubbia Afridi, Muhammad Hassan, Mohammad Ali Sadiq, and Yasir J. Sepah declare that they have no conflict of interest. Diana V. Do serves on the Scientific Advisory Boards for Genentech and Regeneron. Quan Dong Nguyen serves on the Scientific Advisory Boards for Genentech, Regeneron, and Santen.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

Author information

Affiliations

Authors

Corresponding author

Correspondence to Quan Dong Nguyen.

Additional information

This article is part of the Topical Collection on Microvascular Complications—Retinopathy

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Agarwal, A., Afridi, R., Hassan, M. et al. Novel Therapies in Development for Diabetic Macular Edema. Curr Diab Rep 15, 75 (2015). https://doi.org/10.1007/s11892-015-0652-z

Download citation

  • Published:

  • DOI: https://doi.org/10.1007/s11892-015-0652-z

Keywords

  • Diabetic macular edema
  • Clinical trials
  • Anti-VEGF
  • Diabetic retinopathy
  • DARPin
  • VAP-1
  • Stem cell therapy