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Table 1 Study overview

From: Enhancement of the haemostatic effect of platelets in the presence of high normal concentrations of von Willebrand factor for critically ill patients needing platelet transfusion—a protocol for the will-plate randomised controlled trial

Visit

Screening

Treatment

Assessment

ICU follow-up

30-day and 1-year follow-upb

Time (hours, days, weeks)

− 1 h

0

30–60 min

1 day

2 days

12 months

Patient information and informed consent

xa

xa

xa

xa

xa

 

Demographics

x

     

Medical history

x

     

In-/exclusion criteria

x

     

Vital signs

x

 

x

x

x

 

Platelet function analysis

x

 

x

   

Laboratory tests

x

 

x

x

x

 

Pregnancy test

x

     

Randomisation

 

x

    

Information related to bleeding

x

 

x

x

x

 

Study medication

 

x

    

Primary outcome variable

  

x

x

x

 

Secondary outcome variables

  

x

x

x

x

Adverse events

  

x

x

x

 

Mortality

ICU

Hospital

30 days

1 year

   

x

x

x

  1. aIf not possible so far
  2. bAssessment of ICU and hospital length of stay, ICU and hospital mortality, 30-day mortality, 1-year mortality, and estimated costs of blood transfusion products