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Effects of non-specific Endothelin-A receptor blockade on ocular blood flow in patients with glaucoma

Effects of non-specific Endothelin-A receptor blockade on ocular blood flow in patients with glaucoma

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2006-003140-27-AT
Enrollment
28
Registered
2006-07-26
Start date
2006-07-25
Completion date
Unknown
Last updated
2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

patients with primary open angle glaucoma in comparision to a healthy control group.

Interventions

Trade Name: Tracleer@ 125 mg Filmtabletten Pharmaceutical Form: Tablet

Sponsors

Department of Clinical Pharmacology
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Men and women aged over 18 years - Normal findings in the medical history and physical examination unless the investigator considers an abnormality to be clinically irrelevant - Inclusion criteria for patients is primary open angle glaucoma defined as pathological optic disc appearance and characteristic visual field loss - Men and women will be included in equal parts - Ametropia of less than 6 diopters and anisometropia of less than 2 diopters Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Exclusion criteria (glaucoma patients) - Abuse of alcoholic beverages, participation in a clinical trial in the 3 weeks preceding the study - Smoking - Symptoms of a clinically relevant illness in the 3 weeks before the first study day - History or presence of gastrointestinal, liver or kidney disease, or other conditions known to interfere with distribution, metabolism or excretion of study drugs - Blood donation during the previous 3 weeks - Ametropy > 6 dpt - Systemic treatment with, oral antikoagulation, Glibenclamid or vasoactive drugs - History of IOP > 30 (untreated) - Presence of intraocular pathology other than glaucoma - Advanced visual field defect defined as MD >-10 - Presence of PEX (pseudoexfoliation) glaucoma and pigment glaucoma - Ophthalmolgical surgery (including argon laser trabeculoplasty (ALT), trabeculectomy, deep sclerectomy) within the last 6 months before the study - Pregnancy - Diabetes mellitus Exclusion criteria (healthy controls) - Abuse of alcoholic beverages, participation in a clinical trial in the 3 weeks preceding the study - Smoking - Symptoms of a clinically relevant illness in the 3 weeks before the first study day - History or presence of gastrointestinal, liver or kidney disease, or other conditions known to interfere with distribution, metabolism or excretion of study drugs - Blood donation during the previous 3 weeks - Ametropy > 6 dpt - Systemic treatment with oral anticoagulation, Glibenclamid or vasoactive drugs - Pregnancy - Diabetes mellitus

Design outcomes

Primary

MeasureTime frame
Main Objective: To test the hypothesis that the endothelin antagonist bosentan increases ocular blood flow in patients with primary open angle glaucoma.;Secondary Objective: none;Primary end point(s): as stated in the protocol

Countries

Austria

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026