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Usage

Uses

Used in Pharmaceutical Industry:
Benzenesulfonamide, 4-[5-(difluoromethyl)-3-phenyl-4-isoxazolyl]is used as a COX-2 inhibitor for the treatment of pain and inflammation. It selectively targets the COX-2 enzyme, which is responsible for the production of prostaglandins that cause pain and inflammation. The absence of a carboxylic group in its structure allows it to orient differently from other NSAIDs, providing a more selective inhibition of COX-2.
Used in Drug Development:
Due to its unique chemical properties, Benzenesulfonamide, 4-[5-(difluoromethyl)-3-phenyl-4-isoxazolyl]can be further modified and optimized for improved pharmacokinetics, bioavailability, and reduced side effects. It serves as a promising lead compound for the development of new drugs with enhanced therapeutic potential.
Used in Medicinal Chemistry Research:
Benzenesulfonamide, 4-[5-(difluoromethyl)-3-phenyl-4-isoxazolyl]can be employed as a research tool in medicinal chemistry to study the structure-activity relationship of COX-2 inhibitors and other related compounds. This knowledge can be utilized to design and synthesize novel drugs with improved efficacy and safety profiles.

Mechanism of action

As previously discussed, the COX-2 inhibitors have selectivity for inhibition of the COX-2 enzyme, which has low constitutive activity but is highly inducible at sites of tissue injury. In addition to the peripheral role of COX-2 in inflammation, COX-2 may play an important role in the CNS. COX-2 is expressed constitutively in some excitatory neurons in the brain and spinal cord and is induced in traumatic brain injury such as that induced by ischemia and seizures. It has been hypothesized that COX-2 may also be involved in neurodegenerative diseases, since COX-2 inhibitors have shown some positive effects in Alzheimer’s disease. Thus, the mechanism of action of COX-2 inhibitors may involve brain and spinal cord sites as well as local sites of injury.

Clinical Use

Celecoxib has been approved for the treatment of osteoarthritis and rheumatoid arthritis, and rofecoxib has been approved for the treatment of osteoarthritis, acute pain and primary dysmenorrhea. Celecoxib and rofecoxib do not appear to differ in efficacy for the treatment of osteoarthritis. However, neither drug has efficacy greater than that of the non-selective NSAIDs. Since the COX-2 enzyme appears to play an important role in colon cancer the COX-2 inhibitors may find future uses in the treatment or prevention of colorectal cancer.

Side effects

The major advantage of the COX-2 inhibitors is their decreased GI effects and formation of gastric ulcerations compared with the COX nonselective agents. However, once an ulcer is present, COX-2 is induced in response, and the COX-2 enzyme is essential for wound healing.Therefore, celecoxib and rofecoxib can delay in wound healing and increase the time for ulcer repair and tissue regeneration. Patients with gastric ulcers should be switched if possible to another antiinflammatory to allow ulcers to heal. Celecoxib is contraindicated during pregnancy, since COX-2 levels must be maintained for ovulation and onset of labor. COX-2 seems to be involved into the regulation of the renin–angiotensin system, and both celecoxib and rofecoxib use are associated with transient sodium retention.

Relevant academic research and scientific papers

COMBINATION OF A SELECTIVE NMDA NR2B ANTAGONIST AND A COX-2 INHIBITOR

The present invention provides a combination of a selective NMDA NR2B antagonist and a COX-2 inhibitor for the treatment or prevention of pain or nociception.

METHOD OF USING CYCLOOXYGENASE-2 INHIBITORS IN THE TREATMENT AND PREVENTION OF NEOPLASIA

This invention relates to the use of cyclooxygenase-2 inhibitors or derivatives thereof in preventing and treating neoplasia. In particular, the invention describes the method of preventing and treating epithelial cell neoplasia in a subject, said method comprising treating the subject with a therapeutically-effective amount of a compound of Formula (I) wherein A, R and R are as described in the specification.

Use of a COX-2 inhibitor and a NK-1 receptor antagonist for treating inflammation

The present invention provides the use of a COX-2 inhibitior and an NK-1 receptor antagonist for the treatment or prevention of inflammatory disorders.

Substituted isoxazoles for the treatment of inflammation

A class of substituted isoxazolyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula (III) wherein R7 is selected from hydroxyl, lower alkyl, carboxyl, halo, lower carboxylalkyl, lower alkoxycarbonylalkyl, lower alkoxyalkyl, lower carboxyalkoxyalkyl, lower haloalkyl, lower haloalkylsulfonyloxy, lower hydroxyalkyl, lower aryl (hydroxylalkyl), lower carboxyaryloxyalkyl, lower alkoxycarbonylaryloxyalkyl, lower cycloalkyl, lower cycloalkylalkyl, and lower aralkyl; and wherein R8 is one or more radicals independently selected from hydrido, lower alkylsulfinyl, lower alkyl, cyano, carboxyl, lower alkoxycarbonyl, lower haloalkyl, hydroxyl, lower hydroxyalkyl, lower haloalkoxy, amino, lower alkylamino, lower arylamino, lower aminoalkyl, nitro, halo, lower alkoxy, aminosulfonyl, and lower alkylthio; or a pharmaceutically-acceptable salt thereof.

Combination therapy using COX-2 selective inhibitor and thromboxane inhibitor and compositions therefor

The present invention provides a method for the treatment or prophylaxis of COX-2-mediated conditions in patients who are at risk of developing thromboembolic events which comprises administering to said patient a therapeutically or prophylactically effective amount of a COX-2 selective inhibitor and a cardiovascular protective amount of a thromboxane inhibitor, as well as compositions therefor.

Combination therapy in the prevention of cardiovascular disorders

This invention relates to the use of cyclooxygenase-2 inhibitors or derivatives thereof in preventing cardiovascular disorders.

Antiangiogenic combination therapy for the treatment of cancer

The present invention provides combinations of a DNA topoisomerase I inhibiting agent and a selective COX-2 inhibiting agent for preventing, treating, and/or reducing the risk of developing a neoplasia disorder in a mammal.

Combination of a GABAA alpha 5 inverse agonist and COX-2 inhibitor, NSAID, estrogen or vitamin E

Combinations of a GABAAalpha 5 inverse agonist and a COX-2 inhibitor, NSAID, estrogen or vitamin E are disclosed for treating neurodegenerative conditions such as Alzheimer's Disease.

Combination therapy for treating neurodegenerative disease

The instant invention provides a novel drug combination comprised of an HMG-CoA reductase inhibitor and a selective COX-2 inhibitor, which is useful for treating, preventing, delaying the onset of and/or reducing the risk of developing Alzheimer's disease. One object of the instant invention is to administer the above-described combination therapy to people who do not yet show clinical signs of Alzheimer's disease, but who are at risk of developing Alzheimer's disease. These individuals may already show signs of mild cognitive impairment. Toward this end, the instant invention provides methods for preventing or reducing the risk of developing Alzheimer's by administering the above-described combination therapy to said at risk persons. Such treatment may halt or reduce the rate of further cognitive decline or, in fact, reverse cognitive decline. The present invention also provides for a method of preventing cognitive impairment or dementia, reducing the risk of cognitive decline or impairment or reducing cognitive decline or impairment resulting from stroke, stroke, cerebral ischemia or de-myelinating disorders.

Method for treating inflammatory diseases by administering a thrombin inhibitor

The invention is a method for treating an inflammatory disease in a patient which comprises treating the patient with a composition comprising a thrombin inhibitor. Such diseases include but are not limited to nephritis, systemic lupus erythematosus, rheumatoid arthritis, glomerulonephritis, and sacoidosis. In one class of the method, the thrombin inhibitor is selected from the group consisting of 3-(2-phenylethylamino)-6-methyl-1-(2-amino-6-methyl-5-methylenecarboxamidomethylpyridinyl)-2-pyrazinone, N′-[[1-(aminoiminomethyl)-4-piperidinyl]methyl]-N-(3,3-diphenylpropionyl)-L-proline amide, and 3-(2-phenethylamino)-6-methyl-1-(2-amino-6-methyl-5-methylenecarboxamidomethylpyridinyl)-2-pyridinone or a pharmaceutically acceptable salt thereof. The invention is also a method for treating an inflammatory disease in a patient which comprises treating the patient with a composition comprising a thrombin inhibitor and an NSAID, e.g., a COX-2 inhibitor. Such diseases include but are not limited to nephritis, systemic lupus, erythematosus, rheumatoid arthritis, glomerulonephritis, and sacoidosis. In one class of the method, the thrombin inhibitor is selected from the group consisting of 3-(2-phenylethylamino)-6-methyl-1-(2-amino-6-methyl-5-methylene-carboxamidomethylpyridinyl)-2-pyrazinone, N′-[[1-(aminoiminomethyl)-4-piperidinyl]methyl]-N-(3,3-diphenylpropionyl)-L-proline amide, and 3-(2-phenethylamino)-6-methyl-1-(2-amino-6-methyl-5-methylenecarboxamidomethylpyridinyl)-2-pyridinone or a pharmaceutically acceptable salt thereof and the COX-2 inhibitor is 3-phenyl-4-(4-(methylsulfonyl)phenyl)-2-(5H)-furanone or a pharmaceutically acceptable salt thereof.