Use of 5h-dibenz/b,f/azepine-5-carboxamide derivatives in the treatment of neuropathic pain and neurological disorders

Abstract

This invention relates to the use of 5H-dibenz/b,f/azepine-5-carboxamide derivatives in the manufacture of various medicaments for treating neuropathic pain and for treating neurological disorders which involve both motor impairment and neuropathic pain.

1 . Use of a 5H-dibenz/b,f/azepine-5-carboxamide derivative selected from eslicarbazepine acetate, R-licarbazepine acetate or a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion in the manufacture of a medicament for treating neuropathic pain. 
     
     
         2 . Use according to  claim 1 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is the racemate of eslicarbazepine acetate and R-licarbazepine acetate. 
     
     
         3 . Use of a 5H-dibenz/b,f/azepine-5-carboxamide derivative selected from eslicarbazepine acetate, R-licarbazepine acetate or a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion in combination with a nonselective COX inhibitor selected from: acetylsalicylic acid, sodium salicylate, choline, magnesium trisalicylate, salsalate, diflunisal, sulfasalazine, olsalazine, or combinations thereof; acetaminophen; indometahcin, sulindac, or combinations thereof; tolmetin, diclofenac, ketorelac, or combinations thereof; ibuprofen, naproxen, flurbiprofen, ketoprofen, fenoprofen, oxaprozin, or combinations thereof; mephenamic acid, meclofenamic acid, or combinations thereof; Piroxicam, meloxicam, or combinations thereof; and nabumetone, a selective COX inhibitor selected from: rofecoxib, celecoxib, etoricoxib, parecoxib, valdecoxib, lumiracoxib, cimicoxib, or combinations thereof; Etodolac; and Nimesulide, opioid receptor agonists selected from Morphine, methadone, etorphine, codeine, hydrocodone, oxycodone, tramadol, levorphanol, meperidine, propoxyphene, fentanyl, sufentanil, alfentanil, remifentanil, and combinations thereof, and/or opioid receptor partial agonists selected from pentazocine, butorphanol, buprenorphine and combinations thereof in the manufacture of a medicament for treating neuropathic pain. 
     
     
         4 . Use according to  claim 3 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is eslicarbazepine acetate. 
     
     
         5 . Use according to  claim 3 , wherein the 5H-di benz/b,f/azepine-5-carboxamide derivative is R-licarbazepine acetate. 
     
     
         6 . Use according to  claim 3 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion. 
     
     
         7 . Use according to  claim 6 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is the racemate of eslicarbazepine acetate and R-licarbazepine acetate. 
     
     
         8 . Use according to any preceding claim, wherein the neuropathic pain is caused by trigeminal neuralgia, phantom pain, diabetic neuropathy or postherpetic neuralgia. 
     
     
         9 . Use of a 5H-dibenz/b,f/azepine-5-carboxamide derivative selected from eslicarbazepine acetate, R-licarbazepine acetate, a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion, S-licarbazepine, R-licarbazepine, a mixture of S-licarbazepine and R-licarbazepine in any proportion, oxcarbazepine and carbamazepine in the manufacture of a medicament for treating neurological disorders which involve both motor impairment and neuropathic pain. 
     
     
         10 . Use according to  claim 9 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is the racemate of eslicarbazepine acetate and R-licarbazepine acetate. 
     
     
         11 . Use according to  claim 9 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is the racemate of S-licarbazepine and R-licarbazepine. 
     
     
         12 . Use of a 5H-dibenz/b,f/azepine-5-carboxamide derivative selected from eslicarbazepine acetate, R-licarbazepine acetate, a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion, S-licarbazepine, R-licarbazepine, a mixture of S-licarbazepine and R-licarbazepine in any proportion, oxcarbazepine and carbamazepine in combination with a nonselective COX inhibitor selected from: acetylsalicylic acid, sodium salicylate, choline, magnesium trisalicylate, salsalate, diflunisal, sulfasalazine, olsalazine, or combinations thereof; acetaminophen; indometahcin, sulindac, or combinations thereof; tolmetin, diclofenac, ketorelac, or combinations thereof; ibuprofen, naproxen, flurbiprofen, ketoprofen, fenoprofen, oxaprozin, or combinations thereof; mephenamic acid, meclofenamic acid, or combinations thereof; Piroxicam, meloxicam, or combinations thereof; and nabumetone, a selective COX inhibitor selected from: rofecoxib, celecoxib, etoricoxib, parecoxib, valdecoxib, lumiracoxib, cimicoxib, or combinations thereof; Etodolac; and Nimesulide, opioid receptor agonists selected from Morphine, methadone, etorphine, codeine, hydrocodone, oxycodone, tramadol, levorphanol, meperidine, propoxyphene, fentanyl, sufentanil, alfentanil, remifentanil, and combinations thereof, and/or opioid receptor partial agonists selected from pentazocine, butorphanol, buprenorphine and combinations thereof in the manufacture of a medicament for treating neurological disorders which involve both motor impairment and neuropathic pain. 
     
     
         13 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is eslicarbazepine acetate. 
     
     
         14 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is R-licarbazepine acetate. 
     
     
         15 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion. 
     
     
         16 . Use according to  claim 15 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is the racemate of eslicarbazepine acetate and R-licarbazepine acetate. 
     
     
         17 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is S-licarbazepine. 
     
     
         18 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is R-licarbazepine. 
     
     
         19 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is a mixture of S-licarbazepine and R-licarbazepine in any proportion. 
     
     
         20 . Use according to  claim 19 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is the racemate of S-licarbazepine and R-licarbazepine. 
     
     
         21 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is oxcarbazepine. 
     
     
         22 . Use according to  claim 12 , wherein the 5H-dibenz/b,f/azepine-5-carboxamide derivative is carbamazepine. 
     
     
         23 . Use according to any of  claims 9  to  22 , wherein the disorder is selected from polyneuropathies, multiple sclerosis, Parkinson disease, CNS diseases (caused by vascular, tumoral and inflammatory processes) with de-efferentiation, motor neuron disease, progressive supranuclear palsy, multiple system atrophy, corticobasal degeneration, spinocerebellar ataxia, cervical myelopathy, spinal cord injury and radicular avulsion. 
     
     
         24 . A method of treating neuropathic pain comprising administering to a subject in need thereof a therapeutically effective amount of a 5H-dibenz/b,f/azepine-5-carboxamide derivative selected from eslicarbazepine acetate, R-licarbazepine acetate or a mixture of eslicarbazepine acetate and R-licarbazepine acetate in any proportion. 
     
     
         25 . A method of treating neurological disorders which involve both motor impairment and neuropathic pain comprising administering to a subject in need thereof a therapeutically effective amount of a 5H-dibenz/b,f/azepine-5-carboxamide derivative selected from eslicarbazepine acetate, R-licarbazepine acetate, mixtures of eslicarbazepine acetate and R-licarbazepine acetate in any proportion, S-licarbazepine, R-licarbazepine, mixtures of S-licarbazepine and R-licarbazepine in any proportion, oxcarbazepine and carbamazepine.