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Patients With Acute Renal InsufficiencyPhase 3VERROU-REANCT01962116

Citrate Versus Heparin for the Lock of Non-tunneled Hemodialysis Catheters in Patients Hospitalised in ICU

A Phase 3 study testing Citrate 4% and unfractionated heparin in people with Patients With Acute Renal Insufficiency, run by Centre Hospitalier Universitaire Dijon at 1 site in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

After obtaining written informed consent and inclusion, patients will be randomised into 2 groups for the type of dialysis catheter lock: The first group will have a citrate lock The second group will have a heparin lock Patients will be stratified according to the centre and type of Renal Replacement Therapy (RRT)… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Patients With Acute Renal Insufficiency
What is being tested?
Citrate 4% and unfractionated heparin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
405 participants
Where
1 siteFrance
Study dates
14 Jun 2013to 31 Dec 2016
Phase
Phase 3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients aged > 18 years
  • Requiring RRT for acute renal insufficiency
  • For which a 1st non-tunneled catheter is placed
  • In the jugular or femoral position
  • After written informed consent has been obtained from the patient, a member of the family or a person of trust

Who cannot join

  • Patient presenting active poorly controlled bleeding
  • Known allergy to citrate
  • Acute liver failure (Prothrombin level <30%)
  • Thrombopenia < 30 000/mm3
  • Known or suspected heparin-induced thrombopenia
  • Known systemic bacterial infection at the time the catheter is placed
Show all 10Show fewer
  • catheter in the subclavicular position
  • Persons not affiliated to a national health insurance scheme
  • Pregnant women
  • Adults under guardianship

Trial locations and contacts

1 site in 1 country.

France1 site
  • CHU Dijon

    Dijon, 21000

Other trials in France

About this study

Official title: Citrate Versus Heparin for the Lock of Non-tunneled Hemodialysis Catheters in Patients Hospitalised in ICU = Multicentre, Controlled, Randomised Superiority Trial

After obtaining written informed consent and inclusion, patients will be randomised into 2 groups for the type of dialysis catheter lock:

  • The first group will have a citrate lock
  • The second group will have a heparin lock Patients will be stratified according to the centre and type of Renal Replacement Therapy (RRT) continuous or intermittent.
Read more

The daily surveillance of patients will not be different from the usual surveillance of patients on Renal Replacement Therapy.

The hemodialysis catheters used will be specific Renal Replacement Therapy catheters.

The decision to withdraw the catheter will be made by the investigator and based on clinical criteria (complications related to the catheter, termination of Renal Replacement Therapy…)

Being tested
Citrate 4%, unfractionated heparin

What participants receive

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

  • Citrate 4%Drug

  • unfractionated heparinDrug

Study groups in NCT01962116
Study groupRoleWhat they receive
Heparin lockPlacebo comparatorNot described
Receives: Drug: unfractionated heparin
Citrate lockExperimentalNot described
Receives: Drug: Citrate 4%

What is being measured

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

  1. Duration of event-free survival of the first non-tunneled hemodialysis catheter (defined at the time in days from catheter insertion to withdrawal whatever the reason)

    Measured: up to 28 days

Timeline

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

  1. First posted14 Oct 2013 (estimated)
  2. Study start14 Jun 2013
  3. Primary completion1 Apr 2016
  4. Study completion31 Dec 2016

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
405 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01962116
Sponsor's protocol ID
QUENOT DB 2012
Acronym
VERROU-REA
Status last verified
Feb 2026
First submitted
27 Aug 2013
Last updated
9 Feb 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Quenot JP, Helms J, Bourredjem A, Dargent A, Meziani F, Badie J, Blasco G, Piton G, Capellier G, Mezher C, Rebibou JM, Nadji A, Crepin T, Barbar SD, Fleck C, Cransac A, Boulin M, Binquet C, Soudry-Faure A, Bruyere R; VERROU-REA Trial Investigators and the CRICS TRIGGERSEP Group (Clinical Research in Intensive Care and Sepsis Trial Group for Global Evaluation and Research in Sepsis). Trisodium citrate 4% versus heparin as a catheter lock for non-tunneled hemodialysis catheters in critically ill patients: a multicenter, randomized clinical trial. Ann Intensive Care. 2019 Jul 1;9(1):75. doi: 10.1186/s13613-019-0553-4.

    PubMed 31264073
  • Tsujimoto H, Tsujimoto Y, Nakata Y, Fujii T, Takahashi S, Akazawa M, Kataoka Y. Pharmacological interventions for preventing clotting of extracorporeal circuits during continuous renal replacement therapy. Cochrane Database Syst Rev. 2020 Dec 14;12(12):CD012467. doi: 10.1002/14651858.CD012467.pub3.

    PubMed 33314078
  • Bruyere R, Soudry-Faure A, Capellier G, Binquet C, Nadji A, Torner S, Blasco G, Yannaraki M, Barbar SD, Quenot JP. Comparison of heparin to citrate as a catheter locking solution for non-tunneled central venous hemodialysis catheters in patients requiring renal replacement therapy for acute renal failure (VERROU-REA study): study protocol for a randomized controlled trial. Trials. 2014 Nov 19;15:449. doi: 10.1186/1745-6215-15-449.

    PubMed 25409678

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Citrate 4% and unfractionated heparin in people with Patients With Acute Renal Insufficiency, run by Centre Hospitalier Universitaire Dijon at 1 site in France.

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 5 inclusion and 10 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: finished, as of the sponsor's last update on 9 Feb 2026. 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 France. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Duration of event-free survival of the first non-tunneled hemodialysis catheter (defined at the time in days from catheter insertion to withdrawal whatever the reason) (time frame: up to 28 days). 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 NCT01962116, 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 9 Feb 2026.

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