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A Randomized, Open-label, Multicenter, Cross-over Trial to Evaluate the Efficacy of a 20 Week Treatment of Valsartan 320 mg Versus Atenolol 100 mg in Combination With Hydrochlorothiazide on Microcirculation in Hypertensive Patients
This study evaluated the effect of valsartan on small vessel blood flow in patients with mild-to-moderate hypertension in direct comparison to atenolol and hydrochlorothiazide.
Details
| Lead sponsor | Novartis |
|---|---|
| Phase | Phase 3 |
| Status | COMPLETED |
| Enrolment | 30 |
| Start date | 2005-12 |
| Completion | 2007-12 |
Conditions
- Hypertension
Interventions
- Atenolol
- Hydrochlorothiazide (HCTZ))
- Valsartan
Primary outcomes
- Difference in Mean Post-treatment Microcirculation at Acetylcholine (ACH) Injected Sites Compared to NaCl Injected Sites — At end of each treatment period (Week 21 and Week 43)
10 µl of acetylcholine (ACH) at 3 concentrations (10-7, 10-8, 10-9 M) was injected intra-dermally at 3 sites on the forearms. NaCl was injected at 2 sites on the forearms. Microcirculation was measured using laser doppler velocimetry before and 12 times in the 30 minutes following injection. The mean difference of the 12 post-injection measurements to the pre-injection measurement was calculated. Means for the 3 ACH and the 2 NaCl sites were calculated and compared. Microcirculation was measured in perfusion units which is an arbitrary measure specific to each laser doppler scanner.
Countries
Germany, Switzerland