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Ustekinumab (INN, experimental name CNTO 1275, proprietary commercial name Stelara,〔European Medicines Agency, 20 November 2008, http://www.emea.europa.eu/pdfs/human/opinion/Stelara_58227008en.pdf〕 Centocor) is a human monoclonal antibody. It is directed against interleukin 12 and interleukin 23, naturally occurring proteins that regulate the immune system and immune-mediated inflammatory disorders. In two Phase III trials for moderate to severe psoriasis, the longest >76 weeks, ustekinumab was safe and effective. A third Phase III trial, ACCEPT, compared the efficacy and safety of ustekinumab with etanercept in the treatment of moderate to severe plaque psoriasis. This trial found a significantly higher clinical response with ustekinumab over the 12-week study period compared to high-dose etanercept.〔 〔 Ustekinumab is approved in Canada, Europe and the United States to treat moderate to severe plaque psoriasis.〔(Medarex to Receive Milestone Payment for Approval of STELARA(TM) (Ustekinumab) for the Treatment of Moderate to Severe Plaque Psoriasis )〕 It has been tested in Phase II studies for multiple sclerosis and sarcoidosis, the latter versus golimumab (Simponi). On September 24, 2013, the FDA approved the use of ustekinumab for the treatment of psoriatic arthritis. ==Development== , there were 5 NIH-listed research studies involving CNTO 1275 on a multinational basis, including 3 Phase II and 2 Phase III trials. Three studies were focused on patients with psoriasis, one on psoriatic arthritis, and one on multiple sclerosis. On December 4, 2007, a Biologic License Application (BLA) with the U.S. Food and Drug Administration (FDA) was filed by Centocor and Janssen-Cilag International (collaborator) has submitted a Marketing Authorization Application (MAA) to the European Medicines Agency (EMEA). On June 17, 2008, the Dermatologic and Ophthalmic Drugs Advisory Committee (DODAC) of the U.S. Food and Drug Administration unanimously recommended the approval of ustekinumab (CNTO 1275) for the treatment of adult patients with moderate to severe plaque psoriasis. The decision by the committee is non-binding and final decisions on approval of the drug are made by the FDA. The FDA approved the drug on September 25, 2009.〔http://www.empr.com/stelara-approved-for-moderate-to-severe-psoriasis/article/149760/〕 On November 21, 2008, the European Medicines Agency’s (EMEA) Committee for Medicinal Products for Human Use (CHMP) adopted a positive opinion for ustekinumab for the treatment of moderate to severe plaque psoriasis in adult patients who failed to respond to other systemic therapies.〔Centocor 12/19/08 Press Release, http://www.centocor.com/centocor/i/press_releases/FDA_ISSUES_COMPLETE_RESPONSE_LETTER_TO_CENTOCOR_FOR_USTEKINUMAB_BIOLOGIC_LICENSE_APPLICATION_〕 On December 12, 2008 the Canadian Health Authority approved the use of ustekinumab for the treatment of chronic moderate to severe plaque psoriasis in adult patients who are candidates for phototherapy or systemic therapy.〔 In September 2008, Centocor released result of a study comparing etanercept and ustekinumab. The etanercept group received subcutaneous injections of the drug twice weekly for 12-weeks while the ustekinumab group received 2 injections, one-month apart, of either 90 or 45 milligrams. At twelve weeks, psoriatic plaques were reduced by at least three-quarters in 68% of the low-dose ustekinumab group and 74% of the high-dose group. Both groups fared better than the etanercept group, 57% of whom saw such improvement. Dr. Alan Menter, chairman of psoriasis research at Baylor Research Institute said of the results, "now we have a drug that will be used less frequently ... with a significant increase in effectiveness. These results are as good as we've seen in psoriasis."〔Johnson LL. ("Study: Drug for serious psoriasis tops competition" ) The Associated Press. 18 Sept 2008.〕 In November 2011, a study conducted at the Mount Sinai Medical Center in New York City by Drs. Kornbluth and Sandborn showed Ustekinumab's potential for treating severe Crohn's disease.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ustekinumab」の詳細全文を読む スポンサード リンク
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