European Patent Office of Opposition to That Patent, in Accordance with the Implementing Regulations

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European Patent Office of Opposition to That Patent, in Accordance with the Implementing Regulations (19) TZZ _¥_T (11) EP 2 451 435 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.: of the grant of the patent: A61K 33/04 (2006.01) C01B 17/64 (2006.01) 01.11.2017 Bulletin 2017/44 A61K 9/00 (2006.01) A61P 39/02 (2006.01) (21) Application number: 10797770.4 (86) International application number: PCT/US2010/041182 (22) Date of filing: 07.07.2010 (87) International publication number: WO 2011/005841 (13.01.2011 Gazette 2011/02) (54) SODIUM THIOSULFATE-CONTAINING PHARMACEUTICAL COMPOSITIONS NATRIUMTHIOSULFATHALTIGE PHARMAZEUTISCHE ZUSAMMENSETZUNGEN COMPOSITIONS PHARMACEUTIQUES CONTENANT DU THIOSULFATE DE SODIUM (84) Designated Contracting States: (56) References cited: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB US-A- 2 763 531 US-A- 6 007 777 GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO US-A1- 2006 177 523 PL PT RO SE SI SK SM TR • "Sodium thiosulfate pentahydrate 99.999 (30) Priority: 08.07.2009 US 223993 P Suprapur", Merck , 12 April 2013 (2013-04-12), pages 1-7, XP002695361, Retrieved from the (43) Date of publication of application: Internet: 16.05.2012 Bulletin 2012/20 URL:http://www.merckmillipore.com/is-bin/I NTERSHOP.enfinity/WFS/Merck-International- (60) Divisional application: Site/en_US/-/USD/ViewPDF-Print.pdf?RenderP 17165738.0 / 3 213 756 ageType=ProductDetail&CatalogCategoryID=0 m (73) Proprietor: Hope Medical Enterprises, Inc. Kb.s1OaYIAAAEvlypQnxE5&ProductUUID=Tyib. d.b.a. Hope Pharmaceuticals s1 Scottsdale, AZ 85260 (US) OwX0AAAEWAr0W4z8i&PortalCatalogUUID=t02 b.s 1LX0MAAAEWc9UfVhTl [retrieved on (72) Inventors: 2013-04-12] • SHERMAN, Craig • MERCK: ’Safety Data Sheet,’’, [Online] 20 April Scottsdale 2006, pages 1 - 7, XP008163962 Retrieved from AZ 85260 (US) the Internet: • SMITH, Catherine Marie <URL:http://www.merck-chemicals.com/sodium Grafton - WI 53024 (US) thiosulfate-pentahydrate/MDA_CHEM-106509/p_ • WIRTZ, Kevin Robert HXeb.s1 Belgium Lb5QAAAEW9.AfVhTI?attachments=MSDS> WI 53004 (US) [retrieved on 2010-08-20] • SCHULZE, Erich • SCHREIBER ET AL.: ’Adsorption of dissolved Lake Elsinore organic matter onto activated carbon - the CA 92530 (US) influenceof temperature, absorption wavelength, and molecular size’ WATER RESEARCH vol. 39, (74) Representative: Weber, Martin et al no.ISS.15, 01September 2005, pages 3449- 3456, Jones Day XP027613812 Prinzregentenstraße 11 80538 München (DE) Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the Implementing Regulations. Notice of opposition shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention). EP 2 451 435 B1 Printed by Jouve, 75001 PARIS (FR) (Cont. next page) EP 2 451 435 B1 • GE WATER & POWER: ’Sievers InnovOx • Federal Register, 77, 71006-71008, 28-11-2012 Laboratory and On-Une TOC Analyzers’, [Online] • Manual of the 11th Edition of the Japanese 2008, pages 1 - 4, XP008151429 Retrieved from Pharmacopoeia, 1986, pages C-1099-1103 the Internet: (English translation thereof) <URL:http://www.geinstruments.com/products- • Manual of the 15th Edition of the Japanese and-services/toc-analyzers-and-sensor/innov Pharmacopoeia, 2006, pp. C 2476-2480 (English ox-laboratory> [retrieved on 2010-08-20] translation thereof) • SCIENCELAB.COM: ’Material Safety Data Sheet’, • English version of the 15th Edition of the [Online] 06 November 2008, pages 1 - 5, Japanese Pharmacopoeia, Last updated: April XP008151430 Retrieved from the Internet: 23, 2007, pp. 1109-1110 <URL:http://www.sciencelab.com/search.php?q • U.S. Pharmacopeial Convention USP 31, 2008, p. =sodium+thiosulfate+pentahydrate> [retrieved 3260, Sodium Thiosulfate on 2010-08-20] • Manual of the 6th Edition of the European • MULDOON ET AL.: ’Delayed Administration of Pharmacopoeia, July 16, 2007, p. 2927, SODIUM Sodium Thiosulfate in Animal Models Reduces THIOSULPHATE Platinum Ototoxicity without Reduction of • Certificate of Analysis for Sodium thiosulfate Antitumor Activity’ CLINICAL CANCER pentahydrate 99,999 Suprapur® by Merck KGaA RESEARCH vol. 6, no. ISS.1, 01 January 2000, (Test date: March 24, 2006) pages 309 - 315, XP008151433 • Experimental Report, Faculty of Pharmaceutical • ARAYA ET AL.: ’Sodium Thiosulfate Treatment Sciences,Sojo University, Prof. Keishi Yamasaki, for Calcific Uremic Arteriolopathy in Children and 30-04-2015 Young Adults’ CLINICAL JOUMAL OF THE • Product catalogue of Kokusan Chemical Co., Ltd AMERICAN SOCIETY OF NEPHROLOGY vol. 1, (Laboratory Chemicals Vol. 18), 01-07-2006 no. ISS.6, 01 November 2006, pages 1161 - 1166, • Applicant-Initiated Interview Summary at the XP008151434 USPTO (Date of interview: March 12, 2013) • Sodium thiosulfate pentahydrate, 99.999 regarding US Patent Application No. 12/831,331 Suprapur, Cat. No. 106509, Specification Sheet • Handbook of Chemistry, Applied Chemistry Merck, 2010 Edition, edited by the Chemical Society of Japan, • E-mail string with Merck inquiry, 15-06-2011 to Maruzen Co., Ltd, issued on October 15, 1986 pp. 28-06-2011 234-236 • Conditions of sale Merck Chemicals Ltd., pp. 1-7, • Encyclopaedia Chimica (Kagaku Daijiten) 2, 2010 Reduced Edition, edited by Editorial Board of • S.W. Young, W.E. Burke, J. Am. Chem. Soc. 28, Encyclopaedia Chimica, Kyoritsu Shuppan Co., 315-347, 1906 Ltd, Reduced Edition 11th Issue issued on • R.E. Davis, J. Am. Chem. Soc. 80, 3565-3569, 1958 February 5, 1971, pp. 437-438 • H. Vally, N.L.A. Misso, V. Madan, Clinical & • GB 500 489 A (IG FARBENINDUSTRIE AG) 9 Experimental Allergy 39, 1643-1651, 2009 February 1939 (1939-02-09) • Material safety data sheet Cetylpyridinium • Qian Lin, et al., Chemical Engineering Journal, Bromide, Science Lab Vol.139 (2008), pp. 264-271 • J. R. Layton, An Overview of Activated Carbon in • Sievers®, 800 Series Total Organic Carbon the Marine Tank, Analyzer, Operation and Maintenance Manual, http://www.hallman.org/filter/gac.html, IONICS, 2004 16.09.2010 • GE, Water & Process Technologies, Analytical • Shimadzu, Brochure: On-Line Total Organic Instruments, New Wet Chemical Oxidation Carbon Analyzer TOC-4200 Process for Total Organic Carbon (TOC) • Activated carbon adsorption of trace organic Analysis, 2008 compounds, EPA, Document EPA-600.2-77-223, 1977 • Science Lab Certificate of Analysis Sodium Thiosulfate, Pentahydrate, Crystal, FCC, Product Code SLS2962 2 EP 2 451 435 B1 Description FIELD 5 [0001] Provided herein are pharmaceutically acceptable sodium thiosulfate pentahydrate and pharmaceutical com- positions thereof. Also provided herein are methods for determining the total non-purgable organic carbon in a sodium thiosulfate pentahydrate-containing sample. Further provided herein are methods for producing pharmaceutically ac- ceptable sodium thiosulfate pentahydrate. Still further provided herein is sodium thiosulfate pentahydrate for use in methods of treatment. 10 BACKGROUND [0002] Sodium thiosulfate pentahydrate has numerous industrial applications including such uses as removing chlorine from solutions, bleaching paper pulp, and extracting silver from ores. It is also used as a fixer in photography, a mordant 15 in dyeing and printing textiles, and a pharmaceutical ingredient. Even though thousands of metric tons of sodium thio- sulfate pentahydrate are produced annually, only a few hundred kilograms are utilized pharmaceutically for the production of sodium thiosulfate injection as currently indicated as a treatment for cyanide poisoning or for the production of a lotion containing sodium thiosulfate pentahydrate for the treatment of tinea versicolor. It has been recently reported that sodium thiosulfate pentahydrate is an effective treatment for calciphylaxis (Ackermann et al., Archives of Dermatology 2007, 20 143(10): 1336-1337). It has also been reported that sodium thiosulfate pentahydrate is an effective treatment for vascular calcification (O’Neill, Kidney International 2008, 74(11): 1376-1378). It has been reported that sodium thiosulfate pen- tahydrate is an effective treatment to prevent platinum-induced ototoxicity and nephrotoxicity that is associated with the use of platinum-containing chemotherapeutic agents (Skinner, Current Opinions in Oncology 1995, 7(4): 310-315). [0003] The manufacture of pharmaceutical products in the United States is regulated by the Food and Drug Admin- 25 istration (FDA). Since the passage of the Federal Food Drug and Cosmetic Act in 1938, the FDA has required new pharmaceutical products and their corresponding active ingredients to be manufactured in accordance with the exacting requirements of "pharmaceutical grade" Good Manufacturing Practices as detailed in the United States Code of Federal Regulations 21 CFR 211. Because of the relatively small quantity of sodium thiosulfate pentahydrate that is currently used to formulate pharmaceutical products, no raw material supplier presently manufactures sodium thiosulfate pen- 30 tahydrate in accordance with "pharmaceutical grade" Good Manufacturing Practices. [0004] In addition to regulating manufacturing practices, the FDA establishes stringent quality specifications for each new pharmaceutical product and its corresponding active ingredients. A pharmaceutical product is classified as "new" if it was introduced to the market after the passage of the Food Drug and Cosmetic Act in 1938. As mandated in this Act, the FDA requires a new pharmaceutical product and its active ingredients to be manufactured in accordance
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