ClinicalTrials.gg
Status unknownNCT04315623Updated Mar 19, 2020

RCA for CRRT in Hyperlactatemia Patient With Increased Bleeding Risk

An interventional study of Regional citrate anticoagulation CRRT and No-anticoagulation CRRT in Continuous Renal Replacement Therapy, Hyperlactatemia and Bleeding, sponsored by Air Force Military Medical University, China. Status unknown at 1 site in China. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2020-03-19.

Sponsored by Air Force Military Medical University, China · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Mar 2020), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
16 Years and older
Sex
All
01

Study summary

The purpose of this single center, randomized, control, open-labeled study is to evaluate the effect and safety of RCA versus no anticoagulation for CRRT in hyperlactatemia patients with increased bleeding risk.

Read the detailed description

For continuous renal replacement therapy (CRRT) patients with shock and muscle hypoperfusion, which characterised by tissue hypoxia and hyperlactatemia, the Kidney Disease Improving Global Outcomes (KIDIGO) guideline recommended no use of regional citrate anticoagulation (RCA) considering the potential increased citrate accumulation (CA) risk. In the condition of increased bleeding, no-anticoagulation was recommended for these patients. However, CRRT processed without anticoagulation was proved to be associated with shorter filter lifespan. Therefore, the purpose of this single center, randomized, control, open-labeled study is to evaluate the safety and efficacy of RCA versus no-anticoagulation for CRRT in hyperlactatemia patients with increased bleeding risk.

02

Conditions studied

  • Continuous Renal Replacement Therapy
  • Hyperlactatemia
  • Bleeding
03

In context

Hyperlactatemia

50 studies on the registry are indexed under Hyperlactatemia; 7 are open to participants now.

This study's planned enrollment of 80 is above the median of 38 across 32 interventional studies indexed under Hyperlactatemia.

Browse Hyperlactatemia studies →

Lead sponsor

Air Force Military Medical University, China is the lead sponsor of 178 studies on the registry; 37 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
16 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age≥16 years
  • Hyperlactatemia (Lactic acid or serum lactate level > 2 mmol/L)
  • Required CRRT
  • Increased bleeding risk: \< 40 x 109, > 60 s, INR > 1.5, bleeding or active bleeding within 7 days, recent trauma or surgery (especially head trauma and neurosurgery), recent stroke, intracranial venous malformation or aneurysm, retinal hemorrhage, uncontrolled hypertension, and epidural catheter implantation.

Exclusion criteria

Exclusion Criteria:

  • Drugs (biguanide, linezolid, cyanide, etc.) and congenital metabolic disorders (glucose-6 phosphatase and 1,6 phosphofructosase deficiency) and mitochondrial damage caused hyperlactatemia.
  • Receiving systemic anticoagulant treatment (heparin/lmol/warfarin/aspirin, etc.) within 24 hours.
  • Critical patients with lactic acid ≥15mmol\L (with a mortality of 100%) were excluded
  • Patients with > 100S were excluded (retrospective data suggested that this type of patients received CRRT treatment should last for more than 24 hours)
  • Patients who are pregnant or during lactation
  • Severe liver failure: score >10 (chronic severe liver failure), MELD score > 30 (acute severe liver failure), total >51 mol/L
  • Patients with internal fistula were treated with CRRT
  • Unable to cooperate with treatment due to mental problems (such as depression and mental illness)
  • CRRT with arteriovenous fistula, or the prescribed treatment time \< 12 hours
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
80 participants (estimated)

Study arms

  • Experimental
    Reginal citrate anticoagulation

    Patients accepted regional citrate anticoagulation for CRRT. Blood flow 120-220 ml/h. Sodium citrate (4%) infusion before the filter in order to maintain post-filter ionCa2+ level between 0.25 to 0.35 mmol/L. Calcium gluconate supplementary after the filter to maintain serum ionCa2+ level between 1.0 to 1.2 mmol/L. Adjusting the infusion rate of sodium citrate and blood flow according to pre- and post-filtration ionCa2+. Adjusting the infusion rate of calcium gluconate according to the serum ionCa2+ level.

    Procedure: Regional citrate anticoagulation CRRT

  • Active comparator
    No-anticoagulation

    Patients accepted no-anticoagulation CRRT. Blood flow 200 ml/h. The replacement fluid was infused 50% predilution and 50% post-dilution.

    Procedure: No-anticoagulation CRRT

Interventions

  • ProcedureRegional citrate anticoagulation CRRT

    Regional citrate anticoagulation Sodium citrate (4%) infusion before the filter in order to maintain post-filter ionCa2+ level between 0.25 to 0.35 mmol/L. Calcium gluconate supplementary after the filter to maintain serum ionCa2+ level between 1.0 to 1.2 mmol/L.

  • ProcedureNo-anticoagulation CRRT

    Patients accepted no-anticoagulation CRRT. Blood flow 200 ml/h. The replacement fluid was infused 50% predilution and 50% post-dilution.

06

What researchers measure

Primary outcomes

  1. Filter failure

    TMP (transmembrane pressure) ≥ 300 mmHg, extracorporeal coagulation due to blood clots

    Time frame: 72 hours

Secondary outcomes

  1. Serum Total Ca2+/ion Ca2+ level

    Serum Total Ca2+/ion Ca2+ level

    Time frame: 2, 6, 12, 20, 28, 36, 44, 52, 60, and 72 hours

  2. Serum AST level

    AST

    Time frame: Every 24 hours up to 72 hours

  3. Serum total bilirubin level

    Total bilirubin

    Time frame: Every 24 hours up to 72 hours

  4. Serum citrate concentration

    Citrate concentration

    Time frame: 2, 6, 12, 20, 28, 36, 44, 52, 60, and 72 hours

  5. Serum lactate level

    Serum lactate level

    Time frame: 2, 6, 12, 20, 28, 36, 44, 52, 60, and 72 hours

  6. citrate accumulation

    Metabolic acidosis with an increased anion gap, decreasing ionized calcium, elevated total calcium and the calcium ratio (totCa/ionCa) \> 2.5 were considered as citrate accumulation.

    Time frame: 72 hours

  7. Hypocalcemia

    Ionized Ca2+ \< 1.0

    Time frame: 72 hours

  8. Acidosis

    Blood pH \< 7.35

    Time frame: 72 hours

  9. Alkalosis

    Blood pH \> 7.45

    Time frame: 72 hours

  10. Bleeding

    Bleeding episode during the CRRT

    Time frame: 72 hours

  11. APTT

    activated partial thromboplastin time

    Time frame: Every 24 hours up to 72 hours

  12. PT

    Prothrombin time

    Time frame: Every 24 hours up to 72 hours

  13. INR

    International normalized ratio

    Time frame: Every 24 hours up to 72 hours

  14. Mortality

    In-hospital mortality

    Time frame: Up to 3 months

07

Study locations

1 site
  • Xijing Hospital of Nephrology
    Xi'an, Shaanxi 710032, China
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Mar 2020; primary completion for Mar 2022, 23 months later.

Of 17 interventional studies with no phase under Hyperlactatemia, half reached primary completion within 8 months of starting (the median), counting those still running; a quarter within 3 and three quarters within 12. This study's planned 23 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 29, 2020
First posted
Mar 19, 2020
StartEst.
Mar 30, 2020
Primary completionEst.
Mar 1, 2022
CompletionEst.
Mar 3, 2022
Last update
Mar 19, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 19, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04315623
Responsible party
Shiren sun (Professor, Air Force Military Medical University, China) — Principal investigator
First posted
Mar 19, 2020
Start date
Mar 30, 2020 (estimated)
Primary completion
Mar 1, 2022 (estimated)
Completion
Mar 3, 2022 (estimated)
Last update
Mar 19, 2020

Study contacts

Ming Bai, MD
Contact
mingbai1983@126.com
+86029-84775197
Shiren Sun, MD
principal investigator · Xijing Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion