Table 2.

Thrombin generation with addition of 450 nM PS antibody according to the severity of the disease

PatientControl, nM+PS Ab, nMTotal increase, nM
Group A (severe, on EHL product) 
349 670 321 
243 397 154 
324 390 66 
342 425 83 
10 284 474 190 
Average 308.4 471.2 162.8 
Group B (severe, on SHL product) 
226 385 159 
Group C (moderate) 
11  492 507 15 
Group D (mild) 
367 470 103 
402 454 52 
339 422 83 
517 665 148 
Average 406 503 97 
PatientControl, nM+PS Ab, nMTotal increase, nM
Group A (severe, on EHL product) 
349 670 321 
243 397 154 
324 390 66 
342 425 83 
10 284 474 190 
Average 308.4 471.2 162.8 
Group B (severe, on SHL product) 
226 385 159 
Group C (moderate) 
11  492 507 15 
Group D (mild) 
367 470 103 
402 454 52 
339 422 83 
517 665 148 
Average 406 503 97 

The single patient with moderate FIX deficiency had an unusually high baseline peak thrombin level. The addition of PS antibody produced a 15-nM increase in thrombin generation.

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