A comparison of the efficacy and duration of action of telmisartan, amlodipine and ramipril in patients with confirmed ambulatory hypertension
Why this work is in the frame
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Bibliographic record
Abstract
OBJECTIVES: The aim of the study was to compare the antihypertensive effects and the duration of action of telmisartan, amlodipine and ramipril in patients with mild-to-moderate hypertension using ambulatory blood pressure (ABP) monitoring. METHODS: After a 2-4-week single-blind, placebo run-in period, qualifying patients were randomized to receive telmisartan 80 mg (n=18); amlodipine 5 mg (n=22); titrated to 10 mg after 4 weeks; or ramipril 2.5 mg (n=17); titrated to 5 mg and 10 mg after 1 and 3 weeks, respectively, administered once daily in the morning (0700 h). Ambulatory blood pressure monitoring was performed at baseline and at the end of the 8-week treatment period. Plasma renin activity was measured over 24 h at the same time points. RESULTS: Telmisartan and amlodipine provided significant reductions from baseline (P<0.0001) and not statistically different reductions between treatments in ABP during daytime (9.3/6.0 and 14.7/9.4 mmHg, respectively) and night-time (12.4/7.7 and 13.3/8.6 mmHg, respectively) at the end of 8 weeks' treatment. In contrast, although ramipril provided significant reductions in ambulatory systolic and diastolic BP from 2-6 h post dose (peak effect), it failed to induce significant reductions in mean daytime (4.5/1.6 mmHg) and night-time (1.8/0.1 mmHg) ambulatory BP. In addition, the greater reductions in ABP with telmisartan and amlodipine were associated with a significant rise in plasma renin activity whereas ramipril only increased renin during the first 4 h of the administration interval. CONCLUSION: The results of the present study confirm the efficacy of both telmisartan and amlodipine in reducing ABP during each period of the 24-h interval. Because ABP reduction with ramipril was restricted to its peak effect, the present data do not support the use of this agent when administered once daily in the morning.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it