Evidence map›Paper›PMID 28815689›Full record

Trial reportBritish journal of clinical pharmacology2018

Medication adherence in patients with apparent resistant hypertension: findings from the SYMPATHY trial.

Rosa L de Jager, Erik M van Maarseveen, Michiel L Bots, Peter J Blankestijn, SYMPATHY investigators

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Renal denervation for resistant hypertension.The Cochrane database of systematic reviews · 2021
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Review
  7. Impact of medication adherence on the efficacy of Baroreflex activation therapy.Journal of clinical hypertension (Greenwich, Conn.) · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Antihypertensive medication adherence trends by sex and drug class: A pilot study.American heart journal plus : cardiology research and practice · 2021
    Article
  12. Review
  13. Observational
  14. Antithrombotic management of patients with atrial fibrillation-Dutch anticoagulant initiatives anno 2020.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2020
    Review
  15. Medication adherence-Key considerations for clinical pharmacologists.British journal of clinical pharmacology · 2020
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Resistant Hypertension Updated Guidelines.Current cardiology reports · 2019
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Rosa L de JagerDepartment of Nephrology & Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands.ORCID http://orcid.org/0000-0003-1189-1235
Erik M van MaarseveenDepartment of Clinical Pharmacy, University Medical Center Utrecht, Utrecht, The Netherlands.
Michiel L BotsThe Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
Peter J BlankestijnDepartment of Nephrology & Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands.
SYMPATHY investigators
University Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsHypertension is only controlled in approximately 35% of the patients, which could be partially due to nonadherence. Recently, bioanalytical assessment of adherence to blood pressure (BP) lowering drugs has gaining interest. Our aim was to explore possible determinants of nonadherence in treatment resistant hypertension, assessed by objective screening for antihypertensive agents in serum. The secondary aim was to study the effect of adherence on the change in BP.

methodsThis project was a substudy of SYMPATHY; an open-label randomized-controlled trial to assess the effect of renal denervation on BP 6 months after treatment compared to usual care in patients with resistant hypertension. Stored serum samples were screened for antihypertensive agents to assess adherence at baseline and 6 months after intervention, using liquid chromatography-tandem mass spectrometry. Office and 24-h BP were measured on the same day as blood was sampled. Patients and physicians were unaware of adherence measurements.

resultsNinety-eight baseline and 83 6-month samples were available for analysis. Sixty-eight percent [95% confidence interval (CI) 59-78%] of the patients was nonadherent (n = 67). For every onw pill more prescribed, 0.785 [95%CI 0.529-0.891] prescribed pill was less detected in blood. A decrease of one pill in adherence between baseline and 6 months was associated with a significant rise in office systolic BP of 4 (95%CI 0.230-8.932) mmHg.

conclusionObjective measurement of BP lowering drugs in serum, as a tool to assess adherence, showed that nonadherence was very common in patients with apparent resistant hypertension. Furthermore, the assessment results were related to (changes in) blood pressure. Our findings provide direct and objective methodology to help the physician to understand and to improve the condition of apparent resistant hypertension.

Indexed as

Drug MonitoringSympathectomyAgedAntihypertensive AgentsBlood PressureBlood Pressure Monitoring, AmbulatoryCoronary VasospasmFemaleHumansHypertensionKidneyMaleMiddle AgedTreatment OutcomeAntihypertensive Agentsadherencerandomized controlled trialresistant hypertension

Identifiers

PMID28815689
PMCPMC5736834
OpenAlexW2749620475

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.