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Heart FailureDIPSTICKNCT02288819

Spot Urinary Analysis to Assess Loop Diuretic Efficiency in Stable Heart Failure

A study testing Weight monitoring and Loop diuretic downtitration in people with Heart Failure, run by Hasselt University at 1 site in Belgium.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The primary objective of this study is to assess whether the urinary sodium/creatinine or chloride/creatinine ratio might predict successful downtitration of loop diuretics in patients with stable heart failure without clinical signs of volume overload. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Heart Failure
What is being tested?
Weight monitoring and Loop diuretic downtitration
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
1 siteBelgium
Study dates
Sep 2014to Apr 2016
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient has a left ventricular ejection fraction <40% or has been previously hospitalized with a primary diagnosis of heart failure
  • Patient receives a daily maintenance dose of loop diuretics

Who cannot join

  • Patient was hospitalized for heart failure <3 months before study inclusion
  • The maintenance dose of loop diuretics was changed <3 months before study inclusion
  • The maintenance dose of renin-angiotensin-aldosterone system blockers or beta-blocker medication was changed <3 months before study inclusion
  • Cardiac resynchronization therapy (CRT) was initiated <3 months before study inclusion
  • At the moment of inclusion, the patient has either one of the following signs of volume overload: lower leg edema +2/4, ascites, lung congestion
  • Patient is not able to measure his/her weight safely and correct at home

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • Ziekenhuis Oost-Limburg

    Genk, Limburg, 3600

Other trials in Belgium

About this study

Official title: Diuretic Efficiency in Patients With Stable Heart Failure: Ion Excretion Capacity of the Kidneys (DIPSTICK) Study

The primary objective of this study is to assess whether the urinary sodium/creatinine or chloride/creatinine ratio might predict successful downtitration of loop diuretics in patients with stable heart failure without clinical signs of volume overload. In addition, this study will provide information on loop diuretic efficiency and urinary electrolyte composition after intake of diuretics in stable outpatients with heart failure.

Conditions
Heart Failure
Being tested
Weight monitoring, Loop diuretic downtitration
Keywords
loop diuretics, heart failure, natriuresis, urinary analysis
Medical subject headings
Heart Failure

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Weight monitoringDevice

    The body weight of patients is measured each morning in identical conditions on the same balance during 7 days

  • Loop diuretic downtitrationDrug

    The patient's total daily maintenance dose of loop diuretics is downtitrated during 7 consecutive days.

    In case of a total daily maintenance dose ≤40 mg furosemide OR ≤1 mg bumetanide OR ≤20 mg torsemide, the loop diuretic is completely stopped.

    In case of a total daily maintenance dose >40 mg furosemide OR >1 mg bumetanide OR >20 mg torsemide, the loop diuretic dose is halved.

Study groups in NCT02288819
Study groupRoleWhat they receive
Loop diuretic downtitrationExperimentalScheduled downtitration of maintenance loop diuretic dose while monitoring weight
Receives: Device: Weight monitoring; Drug: Loop diuretic downtitration

What is being measured

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

  1. Number of Participants With Successful Downtitration of Loop Diuretics (no Weight Increase >1,5 kg)

    After baseline evaluation, loop diuretics are temporarily downtitrated or stopped for 7 consecutive days. The patient is instructed to measure his/her weight in the morning of these days, immediately after waking up, on the same balance. In case of weight increase >1,5 kg, the original dose of diuretics is restored. To check this, patients are contacted by phone after 3 and 7 days. If the patient has not gained >1,5 kg of weight after 7 days, loop diuretics are considered to be successfully downtitrated.

    Measured: 7 days after baseline

Secondary outcomes (4)
  1. All-cause Mortality

    Measured: 30 days after baseline

  2. Number of Participants Rehospitalized for Heart Failure

    Unplanned hospital admission for symptoms of congestion and/or low output heart failure requiring either intravenous therapy and/or increase of oral diuretics.

    Measured: 30 days after baseline

  3. Number of Participants Requiring a Dose Increase in Loop Diuretics

    Dose increase of oral maintenance therapy with loop diuretics compared to the final dose achieved in the study 7 days after baseline.

    Measured: 30 days after baseline

  4. Weight Change

    Weight change [kg] 7 days after baseline compared to baseline weight.

    Measured: 7 days after baseline

Timeline

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

  1. First posted11 Nov 2014 (estimated)
  2. Study startSep 2014
  3. Primary completionMar 2016
  4. Study completionApr 2016

Why it stopped: Slow recruitment and a lack of funding to complete further follow-up

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02288819
Sponsor's protocol ID
ZOL-DIPSTICK
Acronym
DIPSTICK
Status last verified
Jan 2019
First submitted
23 Oct 2014
Last updated
16 Apr 2019
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Martens P, Verbrugge FH, Boonen L, Nijst P, Dupont M, Mullens W. Value of routine investigations to predict loop diuretic down-titration success in stable heart failure. Int J Cardiol. 2018 Jan 1;250:171-175. doi: 10.1016/j.ijcard.2017.10.018. Epub 2017 Oct 6.

    PubMed 29056238
  • Verbrugge FH, Martens P, Boonen L, Nijst P, Verhaert D, Noyens P, De Vusser P, Dupont M, Tang WHW, Mullens W. Loop diuretic down-titration in stable chronic heart failure is often achievable, especially when urinary chloride concentration is low. Acta Cardiol. 2018 Aug;73(4):335-341. doi: 10.1080/00015385.2017.1385152. Epub 2017 Oct 3.

    PubMed 28971753
  • Boonen L, Verbrugge FH, Nijst P, Noyens P, De Vusser P, Verhaert D, Van Lierde J, Vrolix M, Dupont M, Mullens W. Subclinical volume overload in stable outpatients with chronic heart failure. Acta Cardiol. 2016 Jun;71(3):299-307. doi: 10.2143/AC.71.3.3152090. No abstract available.

    PubMed 27594125

Questions about this trial

What is this clinical trial studying?

A study testing Weight monitoring and Loop diuretic downtitration in people with Heart Failure, run by Hasselt University at 1 site in Belgium.

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 2 inclusion and 6 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: stopped early, as of the sponsor's last update on 16 Apr 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 Belgium. 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?

Yes. Results are posted in the registry (first posted 16 Apr 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Successful Downtitration of Loop Diuretics (no Weight Increase >1,5 kg) (time frame: 7 days after baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02288819, which also lists 3 linked publications.

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 16 Apr 2019.

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