AI Article Synopsis
- This study aims to determine if monitoring antihypertensive drug concentrations through a dried blood spot method, coupled with personalized feedback from doctors, can decrease the prevalence of resistant hypertension (RH) over 12 months by improving medication adherence.
- It employs a multi-centre, single-blinded randomized controlled trial format, where patients with high blood pressure readings are assigned to either standard care or the intervention group that receives additional drug concentration monitoring and personalized feedback.
- The trial will continue for one year, with follow-ups at 3, 6, and 12 months to assess changes in medication adherence, the number of required antihypertensive drugs, and the overall cost-effectiveness of the intervention compared to standard care.
Article Abstract
Background: Adherence to antihypertensive drugs (AHDs) is important for adequate blood pressure control. Not taking these drugs as prescribed is one of the main underlying causes for resistant hypertension (RH), which in turn leads to an increased risk of cardiovascular events, stroke and kidney damage. Therefore, correct identification of patients that are non-adherent to AHDs is crucial to improve clinical outcome. For this goal, therapeutic drug monitoring is the most reliable method. The primary objective of this trial is to investigate whether monitoring of drug concentrations with a dried blood spot (DBS) sampling method combined with personalised feedback leads to a decrease in prevalence of RH after 12 months due to an increase in adherence. Secondary objectives include the difference over time in the number of required AHDs as well as the defined daily dose (DDD). Lastly, the cost-utility of SoC versus the intervention in RH is determined.
Methods: This is a multi-centre single-blinded randomised controlled trial (RHYME-RCT). First, at an eligibility visit, DBS sampling, to monitor drug concentrations in blood, and a 24-h ambulatory blood pressure measurement (24-h ABPM) are performed simultaneously. Patients with a daytime systolic blood pressure (SBP) > 135 and/or diastolic blood pressure (DBP) > 85 mmHg are randomised to SoC or intervention + SoC. The intervention is performed by the treating physician and includes information on drug concentrations and a comprehensive personalised feedback conversation with the use of a communication tool. The follow-up period is one year with visits at 3, 6 and 12 months randomisation and includes 24-h ABPM and DBS sampling.
Discussion: This will be the first trial that focusses specifically on patients with RH without taking into account suspicion of non-adherence and it combines monitoring of AHD concentrations to identify non-adherence to AHDs with a comprehensive feedback to improve non-adherence. Furthermore, if this trial shows positive outcomes for the intervention it can be directly implemented in clinical practice, which would be a great improvement in the treatment of RH.
Trial Registration: RHYME-RCT is registered in the Dutch Trial Register on 27/12/2017 (NTR6914) and can be found in the International Clinical Trials Registry Platform.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9926861 | PMC |
| http://dx.doi.org/10.1186/s12872-023-03114-0 | DOI Listing |
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