NCT04988620

Brief Summary

In vitro platelet function and post-transfusion platelet recovery of platelets stored in whole blood decline during storage. In this pilot randomized clinical trial we aim to investigate the impact of storage time of whole blood on the effect and safety in treatment of immediate blood loss in patients undergoing complex cardiothoracic surgery. The study is designed as an exploratory superiority study to support feasibility and provide critical guidance for future, more definitive randomized trials. In the study the test group will receive CPD whole blood leukocyte-depleted with a platelet-sparing filter and stored for 15-21 days whereas the control group patients will receive leukocyte-depleted CPD whole blood stored for less than 7 days.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 4, 2021

Completed
Same day until next milestone

Study Start

First participant enrolled

June 4, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 3, 2021

Completed
4.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

August 3, 2022

Status Verified

August 1, 2022

Enrollment Period

4.6 years

First QC Date

June 4, 2021

Last Update Submit

August 2, 2022

Conditions

Outcome Measures

Primary Outcomes (2)

  • Blood loss

    Comparison of postoperative immediate blood loss (measured by chest drain output and/or bleeding score) in patients receiving fresher or older cold stored whole blood.

    24 hours (8:00 am morning after surgery)

  • Blood usage

    Comparison of amount of whole blood and blood components given

    24 hours (8:00 am morning after surgery)

Secondary Outcomes (22)

  • INR

    24 hours (8:00 am morning after surgery)

  • APTT

    24 hours (8:00 am morning after surgery)

  • Thromboelastography

    24 hours (8:00 am morning after surgery)

  • Platelet aggregometry

    24 hours (8:00 am morning after surgery)

  • Platelet count

    24 hours (8:00 am morning after surgery)

  • +17 more secondary outcomes

Study Arms (4)

Whole Blood stored for 15-21 days

EXPERIMENTAL

CPD Whole Blood leukoreduced with a platelet-sparing filter and stored cold for 15-21 days

Other: Whole Blood transfusion

Whole Blood stored for less than 7 days

ACTIVE COMPARATOR

CPD Whole Blood leukoreduced with a platelet-sparing filter and stored cold for less than 7 days. We aim at using as fresh as possible.

Other: Whole Blood transfusion

Whole Blood stored for 8-14 days

ACTIVE COMPARATOR

CPD Whole Blood leukoreduced with a platelet-sparing filter and stored cold for 8-14 days. This group may be added if deemed of interest after interim analysis.

Other: Whole Blood transfusion

Standard Blood Component

ACTIVE COMPARATOR

This group may be added for comparison if deemed of interest after interim analysis.

Other: Whole Blood transfusion

Interventions

In this study the effect of storage time of whole blood will be investigated. Intervention is storage of whole blood.

Standard Blood ComponentWhole Blood stored for 15-21 daysWhole Blood stored for 8-14 daysWhole Blood stored for less than 7 days

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients undergoing cardiothoracic, cardiac, or aortic surgery
  • Patients with complex surgical procedures and expected cardiopulmonary bypass (CPB) time over 120 minutes
  • Patients capable of providing informed consent to participate in the study

You may not qualify if:

  • Patients not capable of providing informed consent to participate or who will not provide informed consent
  • Patients with known congenital coagulopathies or hemostatic disorders (von Willebrands Disease, hemophilia etc)
  • Patients with known erythrocyte- or platelet/HLA antibodies
  • Patients with a particular increased surgical risk with expected need of ECMO
  • Patients with preoperative EuroScore II ≥ 30
  • \. RhD negative patient

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Haukeland University Hospital

Bergen, Norway

RECRUITING

MeSH Terms

Conditions

Hemorrhage

Interventions

Exchange Transfusion, Whole Blood

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Blood TransfusionBiological TherapyTherapeutics

Study Officials

  • Einar K Kristoffersen, PhD

    Helse Bergen

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Masking Details
The participant and clinical personell ordering and evalutaing the effect of transfusion will be blinded, so will also the investigators performing the statistical evaluation of the results. The project co-workers preparing the whole blood units and perforing laboratory analysis will not be blinded.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Test group ( Whole Blood stored for 15-21 days) versus Control group(s) (Whole Blood stored for less than 7 days, Whole Blood stored for 8-14 days and/or Standard Blood Component treatment)
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 4, 2021

First Posted

August 3, 2021

Study Start

June 4, 2021

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

August 3, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

Locations