Repositioning Candidate Details
| Candidate ID: | R0315 |
| Source ID: | DB00869 |
| Source Type: | approved |
| Compound Type: | small molecule |
| Compound Name: | Dorzolamide |
| Synonyms: | (4S,6S)-4-ethylamino-6-methyl-7,7-dioxo-4,5,6,7-tetrahydro-7lambda*6*-thieno[2,3-b]thiopyran-2-sulfonic acid amide; (4S,trans)-4-(ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide; 4-Ethylamino-6-methyl-7,7-dioxo-4,5,6,7-tetrahydro-7lambda*6*-thieno[2,3-b]thiopyran-2-sulfonic acid amide; 4-ethylamino-6-methyl-7,7-dioxo-4,5,6,7-tetrahydro-7lambda6-thieno[2,3-b]thiopyran-2-sulfonic acid amide; 4S,6S-dorzolamide |
| Molecular Formula: | C10H16N2O4S3 |
| SMILES: | CCN[C@H]1C[C@H](C)S(=O)(=O)C2=C1C=C(S2)S(N)(=O)=O |
| Structure: |
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| DrugBank Description: | Dorzolamide is a non-bacteriostatic sulfonamide derivative and topical carbonic anhydrase (CA) inhibitor that treats elevated intraocular pressure (IOP) associated with open-angle glaucoma and ocular hypertension. It works by blocking an enzyme in the ciliary process that regulates ion balance and fluid pressure in the eyes. Unlike oral CA inhibitors, dorzolamide has negligible effects of acid-base or electrolyte disturbances and other systemic adverse effects. First marketed in 1995, dorzolamide is available in ophthalmic solutions as monotherapy marketed as Trusopt or in combination with as Cosopt PF. |
| CAS Number: | 120279-96-1 |
| Molecular Weight: | 324.44 |
| DrugBank Indication: | Dorzolamide is indicated for the management of elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma. It can also be used in combination with for the same indication in patients who are insufficiently responsive to ophthalmic beta-blockers. Its pre-operative use was also investigated to prevent elevated intraocular pressure after neodynium yttrium aluminum garnet laser posterior capsulotomy. |
| DrugBank Pharmacology: | Dorzolamide is a carbonic anhydrase inhibitor that reduces elevated intraocular pressure in open-angle glaucoma or ocular hypertension. When used in combination with topic beta-adrenergic antagonists, dorzolamide has an additive effect of lowering intraocular pressure. The peak ocular hypotensive effect of dorzolamide is observed at about 2 hours following ophthalmic administration. |
| DrugBank MoA: | Elevated intraocular pressure is a characteristic manifestation of ocular hypertension or open-angle glaucoma. The level of intraocular pressure (IOP) is governed by the balance between the production of aqueous humour (by ocular ciliary processes) and its outflow from the anterior segment of the eye via trabecular (conventional) or uveoscleral (unconventional) pathways. When there is an increase in the resistance to the trabecular outflow of aqueous humour, the intraocular pressure is elevated. Subsequently, optic nerve damage can occur from blood flow restrictions and mechanical distortion of ocular structures. Optic nerve damage can further result in optic disc cupping and progressive visual field loss (and blindness in some cases). Carbonic anhydrase (CA) is a ubiquitous enzyme that catalyzes the reversible hydration of carbon dioxide to bicarbonate ions and dehydration of carbonic acid. In the ocular ciliary processes, the local production of bicarbonate by CAs promotes sodium and fluid transport. CA-II is a key isoenzyme found primarily in red blood cells (RBCs) that regulates aqueous humour production. Dorzolamide is a highly specific CA-II inhibitor, where it displays a 4000-fold higher affinity for carbonic anhydrase II than carbonic anhydrase I. The inhibition of CA-II in the ciliary process disrupts the formation of bicarbonate ions and reduces sodium and fluid transport, which leads to decreased aqueous humour secretion and reduced intraocular pressure. |
| Targets: | Carbonic anhydrase 2 inhibitor; Carbonic anhydrase 4 inhibitor; Carbonic anhydrase 1 inhibitor; Carbonic anhydrase 3 inhibitor |
| Inclusion Criteria: | Indication associated |
| Strategy ID | Strategy | Synonyms | Related Targets | Related Drugs |
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| Target ID | Target Name | GENE | Action | Class | UniProtKB ID | Entry Name |
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| Diseases ID | DO ID | Disease Name | Definition | Class | |
|---|---|---|---|---|---|
| I12 | 10763 | Hypertension | An artery disease characterized by chronic elevated blood pressure in the arteries. https://en.wikipedia.org/wiki/Hypertension, https://www.ncbi.nlm.nih.gov/pubmed/24352797 | disease of anatomical entity/ cardiovascular system disease/vascular disease/ artery disease | Details |