Related Experiment Video
Updated: Mar 3, 2026

Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension
Published on: June 6, 2025
Achieving Quality 24-h Blood Pressure Control with Candesartan Cilexetil
1a Department of Medicine and Therapeutics, University of Glasgow, Glasgow, UK.
Insights
Candesartan cilexetil offers superior 24-hour blood pressure control compared to losartan. Its sustained efficacy and favorable trough-to-peak ratio enhance patient compliance and cardiovascular protection.
Area of Science:
- Pharmacology
- Cardiovascular Medicine
- Hypertension Management
Background:
- Optimal blood pressure control necessitates consistent 24-hour reduction.
- Antihypertensive medications require good tolerability and once-daily dosing for compliance.
- The renin-angiotensin system plays a crucial role in blood pressure regulation.
Purpose of the Study:
- To evaluate the 24-hour antihypertensive efficacy of candesartan cilexetil.
- To compare the sustained blood pressure lowering effects of candesartan cilexetil and losartan.
- To assess the trough-to-peak ratio as a measure of antihypertensive persistence.
Main Methods:
- Administration of candesartan cilexetil (8 and 16 mg) and losartan (50 and 100 mg).
- Measurement of trough-to-peak ratio to assess efficacy persistence.
- Ambulatory blood pressure monitoring (0-36 hours) and clinic measurements (48 hours).
Main Results:
- Candesartan cilexetil demonstrated a trough-to-peak ratio close to the ideal 1.0.
- Losartan (50 mg) showed a trough-to-peak ratio of 0.7.
- Candesartan cilexetil (16 mg) exhibited significantly greater antihypertensive effect than losartan (100 mg) up to 48 hours post-dosing.
Conclusions:
- Candesartan cilexetil provides smooth, sustained 24-hour blood pressure control.
- Its long-lasting action and favorable trough-to-peak ratio suggest improved patient compliance.
- Candesartan cilexetil offers enhanced cardiovascular protection, even with occasional missed doses.
Abstract:
Epidemiological evidence suggests that optimal blood pressure control requires strategies that lower blood pressure consistently and fully throughout 24 h. In order to maximize compliance, antihypertensive agents also need to be well tolerated and effective when administered at a convenient once-daily dose. The new angiotensin II type 1 (AT 1 ) receptor blocker candesartan binds tightly to, and dissociates slowly from, the AT1-receptor and thereby provides long-lasting suppression of the renin-angiotensin system. This is likely to explain its pronounced antihypertensive efficacy, which is maintained smoothly over 24 h. The trough-to-peak ratio is a useful measure of the persistence of antihypertensive efficacy at the end of the dosing interval. This ratio was found to be close to the ideal of 1.0 for candesartan cilexetil, -8 and 16 mg, whereas it was 0.7 for the prototype AT 1 -receptor blocker losartan, 50 mg. The antihypertensive effect of candesartan cilexetil, 16 mg, was also significantly greater than that of losartan, 100 mg, as demonstrated by ambulatory blood pressure measurements 0-36 h after dosing and by clinic measurements 48 h after dosing. By controlling blood pressure well beyond the normal dosing interval, candesartan cilexetil provides cardiovascular protection even in those patients who may occasionally miss doses.
Related Concept Videos
Hypertension IV: Drug Therapy and Lifestyle Modifications
Antihypertensive Drugs: Angiotensin II Receptor Blockers
Errors occurring during blood pressure monitoring
Several factors...
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors
Antihypertensive Drugs: Direct Renin Inhibitors
Hypertension V: Nursing Management

