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Heart DiseasePhase 2NCT02767154

Dextran-based Priming vs. Crystalloid and Mannitol-based Priming Solution in Adult Cardiac Surgery

A Phase 2 study testing A colloid Dextran 40 solution for extracorporeal circulation and Ringer-Acetate and Mannitol in people with Heart Disease, run by Sahlgrenska University Hospital at 1 site in Sweden.

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

This study will compare two priming solutions for extracorporeal circulation, one based on Dextran 40, one based on crystalloid and mannitol. Primary endpoint is oncotic pressure during cardiopulmonary bypass. Secondary endpoints included fluid balance and organ functions. Read more about this study

Who is it for?
Ages 50 to 75 years
Conditions the study is for
Heart Disease
What is being tested?
A colloid Dextran 40 solution for extracorporeal circulation and Ringer-Acetate and Mannitol
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
84 participants
Where
1 siteSweden
Study dates
May 2016to 13 Jul 2017
Phase
Phase 2
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 50 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 50 - 75 years
  • Elective cardiac surgery procedure with expected CBP time above 90 minutes
  • Subject provides a legally effective informed consent.

Who cannot join

  • Known previous cardiac surgery
  • Coagulation disorder
  • Malignancy
  • Kidney failure
  • Liver failure
  • Ongoing septicaemia
Show all 9Show fewer
  • Ongoing antithrombotic treatment other than acetylsalicylic acid
  • Systemic inflammatory disorders treated with corticosteroids
  • Not able to understand Swedish

Trial locations and contacts

1 site in 1 country.

Sweden1 site
  • Sahlgrenska University Hospital

    Gothenburg, VGR, 41345

Other trials in Sweden

About this study

Official title: A Randomized Controlled Trial Comparing Dextran-based Priming (PrimECC), and Standard Crystalloid and Mannitol-based Priming Solution in Adult Cardiac Surgery

This study will compare two priming solutions for extracorporeal circulation, one based on Dextran 40, one based on crystalloid and mannitol. Primary endpoint is oncotic pressure during cardiopulmonary bypass. Secondary endpoints included fluid balance and organ functions.

Read the detailed description

This is a prospective, single center, double-blinded, randomized controlled clinical trial. Eighty patients are randomized 1:1 to either cardiopulmonary bypass with the dextran-based solution or standard priming with Ringer-Acetate and Mannitol.

Primary endpoint will be oncotic pressure during cardio pulmonary bypass. Secondary endpoints include perioperative fluid balance, coagulation, platelet function, postoperative bleeding volume, transfusion requirements, renal function, liver function, pulmonary function, inflammatory activation and markers for brain and heart injury.

Blood samples for oncotic pressure measurements will be collected from an arterial line before and during surgery. Organ function will be assessed before surgery and 2 hours cardio pulmonary bypass.

Conditions
Heart Disease
Being tested
A colloid Dextran 40 solution for extracorporeal circulation, Ringer-Acetate and Mannitol
Keywords
extracorporeal circulation
Medical subject headings
Heart Diseases

What participants receive

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

  • A colloid Dextran 40 solution for extracorporeal circulationDevice

    Also called PrimECC

    The oncotic pressure of the PrimECC solution is higher than that of a crystalloid Ringer-acetate/mannitol solution. It should maintain the plasma oncotic pressure during and after cardiopulmonary bypass (CPB). Subsequently, the leakage of fluids from the systemic circulation to the interstitial compartment during CPB can be reduced, and a higher plasma volume and a better fluid balance can be achieved.

  • Ringer-Acetate and MannitolDevice

    Also called Standard crystalloid prime

    Currently clinic standard for priming the CPB circuit.

Study groups in NCT02767154
Study groupRoleWhat they receive
PrimECCActive comparator1250 ml of a priming solution based on the colloid Dextran 40 to use for extracorporeal circulation.
Receives: Device: A colloid Dextran 40 solution for extracorporeal circulation
Ringer-Acetate/MannitolActive comparator1250 ml of a priming solution based on the crystalloid Ringer-Acetate (1000ml) and Mannitol (250ml).
Receives: Device: Ringer-Acetate and Mannitol

What is being measured

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

  1. Change in oncotic pressure in plasma

    The oncotic pressure in plasma is measured using an Osmomat 050 and reported in kPa. Points of measurement is before ECC and at 60 minutes into ECC

    Measured: After 1 hour of cardiopulmonary bypass

Secondary outcomes (17)
  1. Change in fluid balance

    Patient fluid balance is registered from ECC-start until 24 hours post-ECC. Infusion of crystalloids and colloids and urine output is registered in ml.

    Measured: Within 24 hours after cardiopulmonary bypass

  2. Amount of bleeding

    Bleeding is registered from ECC-start until 24 hours post-ECC. Intraoperative bleeding and postoperative chest tube drainage for 24 hours are added and registered in ml.

    Measured: Within 24 hours after cardiopulmonary bypass

  3. Amount of transfusions

    Transfusions of red blood cells, platelets and plasma from ECC-start until 24 hours post-ECC are registered and reported in ml.

    Measured: Within 24 hours after cardiopulmonary bypass

  4. Change in coagulation (1).

    Blood samples will be analyzed with modified rotational thromboelastometry (ROTEM) and calibrated automated thrombography. Points of measurement will be before ECC and at 2 hours post-ECC. Results will be reported as normal, above normal or below normal.

    Measured: Within 2 hours after cardiopulmonary bypass

  5. Change in coagulation (2).

    Blood samples will be analyzed calibrated automated thrombography. Points of measurement will be before ECC and at 2 hours post-ECC. Results will be reported as normal, above normal or below normal.

    Measured: Within 2 hours after cardiopulmonary bypass

  6. Change in platelet function

    Platelet function will be measured with impedance aggregometry (Multiplate). Points of measurement will be before ECC and at 2 hours post-ECC. Results will be reported as normal or below normal.

    Measured: Within 2 hours after cardiopulmonary bypass

  7. Change in renal function (1)

    Renal function is measured as µmol/L of Creatinine in serum. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  8. Change in renal function (2)

    Renal tubular damage is measured by analysis of U-NAG. Urine is collected before ECC and at 60 minutes into ECC. Results will be reported as U-NAG/U-Creatinine ratio (U/min).

    Measured: After 1 hour of cardiopulmonary bypass

  9. Change in liver function (1)

    The liver function is measured as µkat/L of ASAT in serum. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  10. Change in liver function (2)

    The liver function is measured as µkat/L of ALAT in serum. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  11. Change in pulmonary function

    The pulmonary function is measured by arterial blood gases assessing PaO2/FiO2 and reported in mmHg. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  12. Change in ischemic heart injury marker.

    The ischemic status of the heart is measures as ng/L of highly sensitive Troponin-T. Points of measurement will be before ECC and at 24 hours post-ECC.

    Measured: Within 24 hours after cardiopulmonary bypass

  13. Change in brain injury marker (1)

    Brain damage is measured as ng/L Tau in plasma. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  14. Change in brain injury marker (2)

    Brain damage is measured as ng/L of NFL in serum. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  15. Change in brain injury marker (3)

    Brain damage is measured as µg/L of S100B in serum. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  16. Change in brain injury marker (4)

    Brain damage is measured as µg/L of NSE in serum. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

  17. Change in inflammatory activation

    Inflammatory activation is measured as ng/L of IL-6 in plasma. Points of measurement will be before ECC and at 2 hours post-ECC.

    Measured: Within 2 hours after cardiopulmonary bypass

Timeline

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

  1. First posted10 May 2016 (estimated)
  2. Study startMay 2016
  3. Primary completion12 Jul 2017
  4. Study completion13 Jul 2017

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
84 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02767154
Sponsor's protocol ID
1003-15
Status last verified
Oct 2017
First submitted
12 Apr 2016
Last updated
9 Oct 2017
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing A colloid Dextran 40 solution for extracorporeal circulation and Ringer-Acetate and Mannitol in people with Heart Disease, run by Sahlgrenska University Hospital at 1 site in Sweden.

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 3 inclusion and 9 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 Oct 2017. 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 Sweden. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

Change in oncotic pressure in plasma (time frame: After 1 hour of cardiopulmonary bypass). 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 9 Oct 2017.

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