Skip to main content

Table 3 Trial schedule (investigations)

From: The TREATT Trial (TRial to EvaluAte Tranexamic acid therapy in Thrombocytopenia): safety and efficacy of tranexamic acid in patients with haematological malignancies with severe thrombocytopenia: study protocol for a double-blind randomised controlled trial

Trial assessment

Enrolment

Days between enrolment and randomisation

Day R

Day of randomisation platelet count ≤50 × 109/L

Days between Day R and study day 1

Day 1

Day 2

Days 3–11

Day 12 (± 2)

Days 13–29

Day 30 (± 2)

Pregnancy test (if applicable)

X

         

Urine dipstick

X

         

Haemoglobin

X

 

X

 

X

X

X

X

X

X

Platelet count

X

X

X

X

X

X

X

X

X

X

Prothrombin time (or INR if PT not available)

X

 

X

       

Serum creatinine (U&E)

X

 

X

 

X

X

Three times a week or as SOC

X

Three times a week or as SOC

X

Liver function tests: bilirubin and albumin

X

 

X

   

Required if VOD is reported/suspected 3 times a week

 

Required if VOD is reported/suspected 3 times a week

 

HLA antibody screen†

X

         

INVESTIGATIONS TO BE PERFORMED ONLY AT SELECTED PARTICIPATING CENTRES

Assays for fibrinolysis

X

 

X

  

X

  

Required three times a week

 
  1. Abbreviations: INR international normalised ratio, PT prothrombin time, SOC standard of care, U&E urea and electrolytes, VOD veno-occlusive disease, X measurement required
  2. † HLA antibodies to be rechecked if participant becomes refractory to platelet transfusions. Please see section 6.4.1