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Dorzolamide

Generic Name
Dorzolamide
Brand Names
Cosopt, Trusopt
Drug Type
Small Molecule
Chemical Formula
C10H16N2O4S3
CAS Number
120279-96-1
Unique Ingredient Identifier
9JDX055TW1
Background

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 timolol as Cosopt PF.

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 timolol 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.

Associated Conditions
Increased Intra Ocular Pressure (IOP), Ocular Hypertension

A Study to Evaluate the Effectiveness of Cosopt® as First Line Therapy (MK-0507A-153)

Phase 3
Completed
Conditions
Ocular Hypertension
Glaucoma
Interventions
First Posted Date
2007-10-18
Last Posted Date
2017-04-04
Lead Sponsor
Merck Sharp & Dohme LLC
Target Recruit Count
170
Registration Number
NCT00546286

Dry Eye Study With Cosopt® Over 8 Weeks in Patients With Open-Angle Glaucoma or Ocular Hypertension (0507A-152)(COMPLETED)

Phase 4
Completed
Conditions
Ocular Hypertension
Open Angle Glaucoma
First Posted Date
2007-10-17
Last Posted Date
2017-06-20
Lead Sponsor
Merck Sharp & Dohme LLC
Target Recruit Count
176
Registration Number
NCT00545064

A Phase IV Study of Travoprost + Brinzolamide to Treat Glaucoma or Ocular Hypertension

First Posted Date
2007-05-09
Last Posted Date
2010-03-16
Lead Sponsor
Alcon Research
Target Recruit Count
46
Registration Number
NCT00471380
Locations
🇮🇹

Catania, Catania, Italy

Study of Travatan and Cosopt in Primary Open-Angle Glaucoma or Ocular Hypertension

Phase 4
Terminated
Conditions
Open-angle Glaucoma
Ocular Hypertension
Interventions
Drug: Placebo (Timolol Vehicle)
First Posted Date
2007-05-09
Last Posted Date
2012-04-11
Lead Sponsor
Alcon Research
Target Recruit Count
46
Registration Number
NCT00471068
Locations
🇵🇹

Coimbra, Coimbra, Portugal

MK0507A Clinical Study in Patients With Glaucoma and Ocular Hypertension (0507A-149)(COMPLETED)

Phase 3
Completed
Conditions
Glaucoma
Interventions
First Posted Date
2007-03-21
Last Posted Date
2017-06-20
Lead Sponsor
Merck Sharp & Dohme LLC
Target Recruit Count
474
Registration Number
NCT00449956

Comparison of Efficacy of Two Groups of Glaucoma Drops (Xalatan vs.Cosopt) in Reducing Eye Pressure Following Laser (SLT)Treatment in the Management of Glaucoma.

Not Applicable
Conditions
Open Angle Glaucoma
First Posted Date
2007-02-27
Last Posted Date
2007-03-01
Lead Sponsor
Advanced Glaucoma Specialists
Target Recruit Count
30
Registration Number
NCT00440336
Locations
🇺🇸

Advanced Glaucoma Specialist, Reading, Massachusetts, United States

12-Month Stability of Diurnal IOP Control on Cosopt

Phase 4
Completed
Conditions
Glaucoma
Interventions
First Posted Date
2006-09-25
Last Posted Date
2015-02-10
Lead Sponsor
West Virginia University
Target Recruit Count
10
Registration Number
NCT00379834

A Study of Glaucoma Therapy to Treat Open-Angle Glaucoma or Ocular Hypertension

First Posted Date
2006-06-02
Last Posted Date
2016-11-18
Lead Sponsor
Alcon Research
Target Recruit Count
319
Registration Number
NCT00333125

A Study of a Glaucoma Therapy to Treat Open-Angle Glaucoma or Ocular Hypertension

First Posted Date
2006-04-13
Last Posted Date
2016-11-18
Lead Sponsor
Alcon Research
Target Recruit Count
437
Registration Number
NCT00314171

Effects of Common Topical Glaucoma Therapy on Optic Nerve Head Blood Flow Autoregulation During Increased Arterial Blood Pressure and Artificially Elevated Intraocular Pressure in Healthy Humans

Not Applicable
Withdrawn
Conditions
Glaucoma
Interventions
Device: Laser Doppler flowmetry
Device: Goldmann applanation tonometer
Procedure: Suction cup method
First Posted Date
2006-01-12
Last Posted Date
2014-11-21
Lead Sponsor
Medical University of Vienna
Registration Number
NCT00275756
Locations
🇦🇹

Department of Clinical Pharmacology, Vienna, Austria

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