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What does the TIME study tell us about morning and evening dosing of antihypertensive medication?
Teck K Khong1,2, George S Lin3
1Clinical Pharmacology, St George's University of London, London, UK tkhong@sgul.ac.uk.
Insights
Taking blood pressure medication in the evening may improve cardiovascular outcomes. This study found no significant difference in major adverse cardiovascular events between morning and evening dosing in hypertensive adults.
Area of Science:
- Cardiovascular Medicine
- Clinical Trials
- Hypertension Management
Background:
- Hypertension is a leading risk factor for cardiovascular disease.
- Optimal timing for antihypertensive medication is debated, potentially impacting treatment efficacy.
- The TIME study investigated the effect of dosing time on cardiovascular outcomes in hypertensive patients.
Purpose of the Study:
- To determine if evening dosing of antihypertensives is superior to morning dosing for cardiovascular event prevention.
- To assess the impact of medication timing on major adverse cardiovascular events (MACE).
Main Methods:
- A prospective, randomised, open-label, blinded-endpoint clinical trial.
- Involved adults with hypertension using their usual antihypertensive medications.
- Participants were assigned to either morning or evening dosing schedules.
Main Results:
- No statistically significant difference in the primary endpoint of major adverse cardiovascular events between evening and morning dosing groups.
- Blood pressure control was similar between the two dosing groups.
- Adherence to medication was also comparable across both groups.
Conclusions:
- Current evidence does not support a routine change in antihypertensive dosing time from morning to evening.
- Dosing time of antihypertensives may not significantly influence major cardiovascular outcomes.
- Further research may be needed to explore specific patient subgroups or alternative dosing strategies.
Abstract:
Commentary on: Mackenzie IS, Rogers A, Poulter NR, et al Cardiovascular outcomes in adults with hypertension with evening vs morning dosing of usual antihypertensives in the UK (TIME study): a prospective, randomised, open-label, blinded-endpoint clinical trial. Lancet 2022;400:1417-25.
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