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Diurnal BP Patterns in Those at Increased Risk of CVD

Sponsor: University of Edinburgh

NCT ID: NCT04522765

View on ClinicalTrials.gov ↗

At a glance

What the study gets you
Health checks and monitoring — no treatment given
Type of study
Observational (no treatment given)
Time in hospital
In-person visits at study sites — visit count not specified by the sponsor
Drug or intervention
Assessment of 24 hour blood pressure and arterial stiffness (diagnostic test)
How long the study runs
Study runs about 81 months (dates as stated)
About the drug or intervention
Assessment of 24 hour blood pressure and arterial stiffness — diagnostic test: Assessment of 24 hour blood pressure and arterial stiffness using Mobil-o-graph device
Patient visit burden
Not specified by the sponsor
Type of study
Observing health over time
Ages
18 Years to 90 Years
Who
All
Number of participants
120
Started
2020-03-17
Last checked
2026-09

Plain English Summary

What is this study?

  • • Testing a new treatment for cardiovascular risk factor
  • • Clinical study - 120 participants
  • • In health, blood pressure (BP) falls at night by \>10% compared with day-time values

Who can take part?

  • • Ages 18 Years to 90 Years
  • • Diagnosed with cardiovascular risk factor

Where?

  • • Edinburgh - Royal Infirmary of Edinburgh

This is a simplified summary. Always discuss with your doctor before making any decisions.

About This Trial

In health, blood pressure (BP) falls at night by \>10% compared with day-time values. This natural dipping pattern is important as without it there is an increased risk of cardiovascular disease (CVD). Recent evidence suggests that chronotherapy (taking anti-hypertensive medication at bedtime instead of in the morning) may enhance nocturnal BP dipping and reduce the risk of CVD events. There is therefore an urgent need to characterise diurnal BP patterns in patients who may be at risk of reduced nocturnal dipping in order to maximise protective therapy in all those who would benefit. Similarly, it has previously been demonstrated that increased arterial stiffness is associated with increased CVD risk, however little is known about whether loss of diurnal variations in arterial stiffness confer addition risk. Kidney disease is independently associated with increased CVD events, but the exact makeup of this risk is not clear. Within this heterogenous cohort several very distinct groups exist including those with acute kidney injury (AKI), chronic kidney disease (CKD), inflammatory conditions like small vessel vasculitis (SVV), and those who have either donated or received a kidney transplant. Diurnal BP and arterial stiffness patterns within these patient groups are not well characterised. The investigators will recruit patients at increased risk of CVD from the Royal Infirmary of Edinburgh Renal and Vasculitis Clinics. Participants will undergo 24-hour ambulatory BP and arterial stiffness measurement in conjunction with day- and night-time blood and urine sampling on two separate occasions. This study aims to characterise diurnal patterns of BP and arterial stiffness in patients at increased risk of CVD and compare findings with healthy controls. In doing so, the investigators aim to allow more targeted CVD risk reduction strategies and improve long-term patient outcomes.

Cardiovascular Risk FactorBlood PressureArterial StiffnessChronic Kidney Diseases

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What we know so far

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Preliminary match based on your answers. Full eligibility requires on-site assessment including medical history, physical exam, and lab tests. This does not guarantee enrolment.

Eligibility at a Glance

Key info

  • Age: 18 Years - 90 Years
  • Who can join: All genders

What the study is looking for

  • ✓CKD as defined by the Kidney Disease Outcome Quality Initiative (K/DOQI) classification
  • ✓AKI as defined by the Kidney Disease Improving Global Outcomes (KDIGO) classification
  • ✓Small vessel vasculitis
  • ✓Kidney transplant recipient
  • ✓Kidney donor We will also recruit a healthy control group from the community.

Who cannot take part

  • ✗Age \<18 years and \>90 years
  • ✗Lack of ability to provide agreement to take part
See the full criteria
Inclusion Criteria: * Patients will be eligible to take part in the study if they attend NHS Lothian inpatient or outpatient services and can be classified as being at increased risk of CVD. This will include, but is not limited to, the following subgroups: 1. CKD as defined by the Kidney Disease Outcome Quality Initiative (K/DOQI) classification 2. AKI as defined by the Kidney Disease Improving Global Outcomes (KDIGO) classification 3. Small vessel vasculitis 4. Kidney transplant recipient 5. Kidney donor We will also recruit a healthy control group from the community. Exclusion Criteria: 1. Age \<18 years and \>90 years 2. Lack of ability to provide informed consent

Where Is This Study? (1 UK site)

Royal Infirmary of Edinburgh

Edinburgh EH164SA, United Kingdom

Recruiting
Hospital R&D contact (matched)

Colleen Bowthorpe

colleen.bowthorpe@nhs.scot01387 241815

How to Get in Touch

Neeraj Dhaun, MBChB PhD

Sponsor contact

CONTACT

07968810899 bean.dhaun@ed.ac.uk
Data sourced from ClinicalTrials.gov · Last verified: 2026-09