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Haemodialysis ComplicationNCT03851185

Combining Bioimpedance and Blood Volume Measurements in Haemodialysis

An observational study of Haemodialysis Complication, run by The Leeds Teaching Hospitals NHS Trust at 1 site in United Kingdom.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Around 60,000 patients in the UK are being treated for severe kidney failure. The most common treatment is haemodialysis (HD). An important part of HD is removing extra fluid from the body which the kidneys normally remove in urine. Deciding how much fluid to remove is not easy. Read more about this study

Who is it for?
Ages 18 to 100 years
Conditions the study is for
Haemodialysis Complication
How many people
160 participants
Where
1 siteUnited Kingdom
Study dates
15 Feb 2019to 31 Mar 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Those receiving haemodialysis

Who may be able to join

  • Ultrafiltration volumes in the preceding two weeks of less than 0.5 litres;
  • pre-HD BCM-measured OH <1.1 litres; pre-HD blood pressure <140/90.
  • Cohort 2 - High BMI group: This group is intended to represent patients with high BMI who routinely finish dialysis with significant fluid depletion, as defined by BCM, without intradialytic symptoms.
  • BMI>30 with target weight > 1.1 kg below normally hydrated weight;
  • no recorded symptoms related to fluid removal in the preceding 2 weeks.
  • Cohort 3 - Low LTI group: This group is intended to represent patients who have a low LTI and who routinely finish dialysis with a degree of excess fluid as defined by BCM.
Show all 9Show fewer
  • LTI < 10kg/m2 with target weight > 1.1 kg above normally hydrated weight.
  • Cohort 4 - Localised oedema group: This group is intended to represent patients who have localised lower limb oedema.
  • Oedema as defined by pitting

Who cannot join

None listed.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site, 1 recruiting
  • St James's University Hospitals NHS Trust

    Leeds, LS9 7TF

    David Keane, 01132064119, david.keane@nhs.net

    Recruiting

Other trials in United Kingdom

About this study

Official title: Individualised Fluid Management in Haemodialysis: Combining Bioimpedance and Absolute Blood Volume Measurements for Improved Clinical Effectiveness and Patient Experience

Around 60,000 patients in the UK are being treated for severe kidney failure. The most common treatment is haemodialysis (HD). An important part of HD is removing extra fluid from the body which the kidneys normally remove in urine. Deciding how much fluid to remove is not easy. It is normally based on clinical signs, such as blood pressure or tissue swollen with fluid, but there is a need for better tests to help guide these decisions.

Bioimpedance tests are one way of measuring fluid status. They involve passing a small electric current through tissue using stickers on the skin. The test is portable, cheap, simple, painless and harmless. One bioimpedance device, the Body Composition Monitor (BCM), has been designed particularly for kidney patients. However the BCM measures fluid in the whole body and cannot tell us how much fluid is in the blood (the blood volume), which has the biggest effect on patients' health.

Read more

The aim of this study is to see whether blood volume measurements can help to make fluid management more individualised. This could reduce the impact of dialysis on patients' health and improve patients' experience of the treatment.

Objective 1: To demonstrate whether the addition of blood volume measurements can help to tailor fluid management to HD patients' individual needs. In particular we will look at how body size, nutritional state, age and localised fluid can affect patients' blood volume.

Objective 2: To see if there is a simple way of making blood volume measurements with no need for expertise or extra equipment.

It is planned to recruit 40 patients into 4 clinically different groups and compare results between them.

The results will be compared between groups to help us understand how decisions about fluid management can be tailored to keep blood volume at the optimal level.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Measurement of post-dialysis blood volume (ABV) in the high BMI group.

    Absolute blood volume measurements: ABV measurements will be made based on the infusion of ultra-pure dialysate into the extracorporeal blood circuit and the analysis of the effect of the dilution on RBV.

    Measured: 10 mins

  2. Measurement of post-dialysis blood volume (ABV) in the low lean tissue index (LTI) cohort

    Absolute blood volume measurements: ABV measurements will be made based on the infusion of ultra-pure dialysate into the extracorporeal blood circuit and the analysis of the effect of the dilution on RBV.

    Measured: 10 Mins

  3. Measurement of post-dialysis blood volume (ABV) in the localised oedema cohort

    Absolute blood volume measurements: ABV measurements will be made based on the infusion of ultra-pure dialysate into the extracorporeal blood circuit and the analysis of the effect of the dilution on RBV.

    Measured: 10 mins

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Feb 2019
  2. Study start15 Feb 2019
  3. Primary completion31 Mar 2021 (estimated)
  4. Study completion31 Mar 2021 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
160 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03851185
Sponsor's protocol ID
RL18/109517
Status last verified
Feb 2019
First submitted
21 Feb 2019
Last updated
28 Feb 2019
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Haemodialysis Complication, run by The Leeds Teaching Hospitals NHS Trust at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 28 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Measurement of post-dialysis blood volume (ABV) in the high BMI group. (time frame: 10 mins). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Feb 2019.

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