(12) Patent Application Publication (10) Pub. No.: US 2008/0014272 A1 Skolnick Et Al
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US 2008.0014272A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2008/0014272 A1 Skolnick et al. (43) Pub. Date: Jan. 17, 2008 (54) COMPOSITIONS AND METHODS FOR Publication Classification TREATMENT OF CHRONIC PAIN CONDITIONS (51) Int. Cl. A6II 3 L/403 (2006.01) (76) Inventors: Phil Skolnick, Edgewater, NJ (US); A6II 3/19 (2006.01) Warren Stern, Plymouth, MA (US) A6II 3/44 (2006.01) A6IR 9/00 (2006.01) Correspondence Address: A6IP 9/00 (2006.01) Jeffrey J. King, Esq. A6IP 9/02 (2006.01) BLACKLOWE & GRAHAM PLLC (52) U.S. Cl. ......................... 424/484: 514/282: 514/415; Suite 4800 514/557 701 Fifth Avenue Seattle, WA 98104 (US) (57) ABSTRACT (21) Appl. No. 11/775,721 The present invention relates to methods, pharmaceutical compositions and kits for treating osteoarthritis associated (22) Filed: Jul. 10, 2007 pain, inflammation and improving function in a patient comprising a first therapeutic agent which comprises bici Related U.S. Application Data fadine or a pharmaceutically acceptable salt, enantiomer, Solvate, hydrate, polymorph or prodrug thereof and a second (60) Provisional application No. 60/830,412, filed on Jul. therapeutic agent which comprises a non-steroidal anti 11, 2006. inflammatory drug or derivative thereof. 1 hr post-treatment 2 hr post-treatment 1. 2 SO Boifadine Morphine Treatment, (mg/kg PO) Patent Application Publication Jan. 17, 2008 Sheet 1 of 4 US 2008/0014272 A1 F - : 1hr post-treatment as 2 hr post-treatment S. - O s w Sg 25 is t f Wehicle 5 SO Bici fadine Morphine Treatment, (mg/kg PO) Figure 1 Patent Application Publication Jan. 17, 2008 Sheet 2 of 4 US 2008/0014272 A1 25 20 ss 15 10 S Sm 5 < 0 2C 5 -10 Placebo BiCifadine |buprofen Bici fadine + buprofer Figure 2 Patent Application Publication Jan. 17, 2008 Sheet 3 of 4 US 2008/0014272 A1 15 O -150 Placebo BC fade |buprofen Biciifadine + buprofen Figure 3 Patent Application Publication Jan. 17, 2008 Sheet 4 of 4 US 2008/0014272 A1 60 5 O 4. O 30 Placebo BiCifadine |buprofen Bici fadine + Ibuprofen Figure 4 US 2008/0014272 A1 Jan. 17, 2008 COMPOSITIONS AND METHODS FOR point where quality of life, functional capabilities, produc TREATMENT OF CHRONIC PAIN CONDITIONS tivity and other functional/activity measures are profoundly affected. RELATED APPLICATIONS 0006 Generally, OA is treated pharmacologically. How 0001. This application claims all priority benefits of U.S. ever, currently approved pharmacological agents such as Provisional patent application No. 60/830,412, filed Jul. 11, acetaminophen or non-steroidal anti-inflammatory drugs 2006 which is incorporated herein by reference. (NSAIDs). Such as aspirin, ibuprofen, and cyclo-oxyge nase-2 (COX-2) inhibitors, only reduce pain by approxi TECHNICAL FIELD mately 30 percent. (Schnitzer T.J. Update of ACR guidelines for osteoarthritis: role of coxibs. J. Pain Symptom Manage. 0002 The present invention relates to compositions and 2002; 23:S24-30; Easton B. T. Evaluation and treatment of methods for treatment of chronic pain conditions, including the subject with osteoarthritis. J. Family. Practice. 2001: 50: osteoarthritis, rheumatoid arthritis, chronic low back pain, 791-797: Chard J, Dieppe P. Update: treatment of osteoar and other chronic pain conditions. More specifically, the thritis. Arthritis and Rheumatism. 2002: 47: 686-690.) Ste present invention relates to compositions and methods to roids may be used to treat swelling caused by OA, however, alleviate chronic pain and/or to reduce functional disabilities steroids are contraindicated for long term use due to side associated with chronic pain. effects Such as increased bone loss and increased suscepti bility to infection. Surgery such as joint replacement, arthro BACKGROUND OF THE INVENTION scopic lavage and debridement, repositioning of bones or 0003 Chronic pain conditions are diverse and wide fusing of bones may also be recommended. However, Sur spread in humans and other Subjects, often causing serious gery, particularly in older patients, has increased risks of impacts on quality of life and resulting in serious disabilities complications and long recovery periods. including functional and activity impairment. The high 0007. There is therefore an urgent need in the art for new prevalence and morbidity of chronic pain conditions result and alternative treatments for management of chronic pain, in high costs for human and veterinary health care to treat including osteoarthritis, and for alleviating disabilities, chronic pain. Exemplary chronic pain conditions for which including function/activity impairment, in patients with new drugs and therapies are urgently needed include chronic pain. osteoarthritis pain; rheumatoid arthritis pain; cancer pain; and various other chronic pain conditions of non-neuro SUMMARY OF EXEMPLARY EMBODIMENTS pathic origin, such as chronic low back pain, chronic lumbar OF THE INVENTION and cervical pain, chronic fibromyalgia pain, chronic pain 0008. The present invention provides methods and com from arteriovenuous malformation, arachnoiditis, chronic positions to treat and/or prevent chronic pain conditions in pain from root avulsion, chronic postthoracotomy pain, and mammalian Subjects. The compositions and methods of the chronic postmastectomy pain of non-neuropathic origin. invention effectively treat a wide variety of chronic pain 0004 Osteoarthritis (OA), sometimes called degenera conditions and symptoms, including, for example, osteoar tive joint disease, hypertrophic arthritis, degenerative arthri thritis (OA) pain; rheumatoid arthritis pain; cancer pain; and tis or osteoarthrosis is the most common form of arthritis various other chronic pain conditions of non-neuropathic currently afflicting more than 21 million Americans. It is the origin, including chronic low back pain, chronic lumbar and most common rheumatic disease affecting humans and it is cervical pain, chronic fibromyalgia pain, chronic pain from the second most common disease responsible for disability arteriovenuous malformation, arachnoiditis, chronic pain in the United States. (Peyron J. G. Altman R D: The from root avulsion, chronic postthoracotomy pain, and Epidemiology of Osteoarthritis. In Osteoarthritis: Diagnosis chronic postmastectomy pain of non-neuropathic origin. The and Medical/Surgical Management, edin 2. Edited by Mosk methods and compositions of the invention employ combi owitz R. W. Howell DS, Goldberg V M. Philadelphia: W B natorial formulations and/or coordinate treatment methods Saunders; 1992: 15-37). Despite the frequency of the disease, wherein an effective amount of bici fadine is administered to the cause is still unknown and there is no cure or effective a patient Suffering from chronic pain in combination with treatment. one or more non-steroidal anti-inflammatory drugs 0005 OA is a chronic and progressive disease which (NSAIDs), wherein the combination of drug treatments is causes damage to afflicted joints and Surrounding tissues. It Sufficient to alleviate one or more targeted chronic pain often develops slowly as the articular cartilage that lies on condition(s) or symptom(s). the ends of bones and forms the articulating surface of the 0009. Within certain embodiments of the invention, joints gradually degenerates. As cartilage degeneration methods for treating chronic pain associated with OA are progresses, secondary changes occur in other tissues in and provided which employ an effective combination of bicifa around the joints including the bone, muscle, ligaments, dine and one or more NSAID(s) sufficient to alleviate one or menisci and synovium. The effect of the failure of cartilage more condition(s) or symptom(s) of OA. tissue and secondary damage to other tissues is that an individual experiences pain, Swelling, weakness and loss of 0010. In other embodiments, the methods and composi functional ability in the afflicted joint(s). Individuals with tions of the invention employing bicifadine in combination OA have pain that typically worsens with weight bearing with one or more NSAID(s) are effective for inhibiting and activity and improves with rest. Many individuals with progression of a chronic pain condition in a mammalian OA develop functional/activity impairments, such as Subject. impaired coordination, and postural and gait defects due to 0011. In a further embodiment, the invention is directed pain and stiffness. These symptoms frequently progress to a to methods and compositions for treating inflammation US 2008/0014272 A1 Jan. 17, 2008 associated with a chronic pain condition, Such as inflamma including, but not limited to, trifumidate; pyrazoles includ tion associated with OA. These methods similarly employ a ing, but not limited to, phenylbutaZone, aminopyrine, anti combination of bici fadine and one or more NSAID(s) suf pyrine, oxyphenbutaZone, and tetrydamine; aminonicotinic ficient to alleviate one or more symptoms of inflammation acids including, but not limited to, flunixin; pyrazolones associated with a chronic pain condition. including, but not limited to phenylbutaZone, feprazone, and apazone. Additional NSAIDs which may be used in the 0012. In another embodiment, the invention is directed to present invention further include, but are not limited to, methods and compositions for treating or preventing a benzindopyrine hydrochloride, benzydamine hydrochloride, disability associated with chronic pain, for example by cinchophen, cintaZone, clonixeril, clonixin, diflumidone reducing or eliminating functional/activity impairment in a Sodium, dimefadane,