(12) United States Patent (10) Patent No.: US 9,642,809 B2 Hemmingsen Et Al
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USOO9642809B2 (12) United States Patent (10) Patent No.: US 9,642,809 B2 Hemmingsen et al. (45) Date of Patent: *May 9, 2017 (54) CONTROLLED RELEASE 4.389,393 A 6, 1983 Schor et al. PHARMACEUTICAL COMPOSITIONS FOR 4.404,183 A 9, 1983 Kawata et al. 4,449,983 A 5/1984 Cortese et al. PROLONGED EFFECT 4,503,067 A 3, 1985 Wiedemann et al. 4,686,212 A 8, 1987 Ducatman et al. (71) Applicant: Egalet Ltd., London (GB) 4,769,372 A 9, 1988 Kreek 4,824,675 A 4/1989 Wong et al. (72) Inventors: Pernille Hoyrup Hemmingsen, 4,844,984 A 7, 1989 Eckenhoff et al. Bagsvaerd (DK); Anders Vagno 4,873,080 A 10, 1989 Bricklet al. 4,892,742 A 1, 1990 Shah Pedersen, Virum (DK); Daniel 4,898,733. A 2f1990 De Prince et al. Bar-Shalom, Kokkedal (DK) 5,019,396 A 5/1991 Ayer et al. 5,068,112 A 11/1991 Samejima et al. (73) Assignee: EGALET LTD., London (GB) (Continued) (*) Notice: Subject to any disclaimer, the term of this FOREIGN PATENT DOCUMENTS patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. EP O 435 T26 A2 7, 1991 EP O 908 181 4f1999 This patent is Subject to a terminal dis claimer. (Continued) (21) Appl. No.: 14/446,234 OTHER PUBLICATIONS Krogel et al (Pharmaceutical Research, 1998, vol. 15, pp. 474 (22) Filed: Jul. 29, 2014 481).* U.S. Appl. No. 13/803,132, filed Aug. 25, 2006, Purdue Pharma C. (65) Prior Publication Data U.S. Appl. No. 13/900,933, filed Aug. 25, 2006, Purdue Pharma C. U.S. Appl. No. 13/949.966, filed Dec. 18, 2002, Pain Therapeutics US 2015/OO24O48 A1 Jan. 22, 2015 A. International Search Report issued on Jul. 8, 2008 in application No. Related U.S. Application Data PCT/DK2008/000016 (corresponding to U.S. Pat. No. 8,603,526). International Search Report issued on Oct. 20, 2009 in application (63) Continuation of application No. 12/602.953, filed as No. PCTDK2009/000192. application No. PCT/EP2008/056910 on Jun. 4, 2008, International Search Report issued on Apr. 21, 2010 in application now Pat. No. 8,821,928. No. PCT/EP2010/00728 (corresponding to US 2010/0204259). International Search Report issued on May 18, 2010 in application No. PCT/DK2010/00019 (corresponding to U.S. Pat. No. (60) Provisional application No. 60/941,848, filed on Jun. 8,603,526). 4, 2007. (Continued) (30) Foreign Application Priority Data Primary Examiner — Mark V Stevens (74) Attorney, Agent, or Firm — Foley & Lardner LLP Jun. 4, 2007 (DK) ................................. 2007 OO816 (57) ABSTRACT (51) Int. Cl. Layered pharmaceutical composition Suitable for oral use in A6 IK 9/20 (2006.01) the treatment of diseases where absorption takes place over A6 IK 9/28 (2006.01) a large part of the gastrointestinal tract. The composition A6 IK3I/I67 (2006.01) comprising A) a Solid inner layer comprising i) an active Substance, and A6 IK 3/485 (2006.01) ii) one or more disintegrants/exploding agents, one of more A 6LX 3/573 (2006.01) effervescent agents or a mixture thereof. A6 IK 9/24 (2006.01) The solid inner layer being sandwiched between two outer (52) U.S. Cl. layers B1) and B2), each outer layer comprising CPC ............ A61K 9/2086 (2013.01); A61K 9/209 iii) a substantially water soluble and/or crystalline polymer (2013.01); A61 K9/2072 (2013.01); A61 K or a mixture of substantially water soluble and/or crys 9/2853 (2013.01); A61K 9/2866 (2013.01); talline polymers, the polymer being a polyglycol in the A61K 31/167 (2013.01); A61K 31/485 form of one of a) a homopolymer having a MW of at least (2013.01); A61 K3I/573 (2013.01) about 100,000 daltons, and b) a copolymer having a MW (58) Field of Classification Search of at least about 2,000 daltons, or a mixture thereof, and CPC ..... A61 K9/2086; A61 K9/2072: A61 K9/209 iv) an active Substance, which is the same as in said solid See application file for complete search history. inner layer A), and layer A being different from layer B. the layered composition being coated with a coating C) that (56) References Cited has at least one opening exposing at least one Surface of said outer layer, the coating being Substantially insoluble in and U.S. PATENT DOCUMENTS impermeable to fluids and comprising a polymer, and the composition having a cylindrical form optionally with one 2,685,553 A 3, 1951 Carroll et al. or more tapered ends, wherein the ratio between the surface 3,835,221 A 9, 1974 Fulberth et al. area of one end surface of the cylinder and the length of the 3,957,523 A 5, 1976 Ohno et al. 4,034,758 A 7, 1977 Theeuwes cylinder is in a range of from 0.02 to 45 mm. 4,330,338 A 5, 1982 Banker 27 Claims, 24 Drawing Sheets US 9,642.809 B2 Page 2 (56) References Cited 6,733,783 B2 5, 2004 OShlack et al. 6,757,558 B2 6/2004 Lange et al. 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