Table 2.

Treatment characteristics of historical non-caplacizumab cohort vs caplacizumab cohort

Non-caplacizumab cohort (n = 16),
median (range)
Caplacizumab cohort (n = 17),
median (range)
P value
Time from admission to PLEX initiation, d 0 (0-3) 1 (0-2) .51 
PLEX treatments 11 (5-42) 10 (4-19) .74 
Time from admission to steroid therapy, d 0 (0-7; n = 15) 0 (0-1; n = 17) .19 
Time from admission to rituximab therapy, d 5 (0-15; n = 13) 3 (1-7; n = 15) .04 
Patients receiving bortezomib, n (%) 2 (12.5) 1 (6.2) .54 
Time from admission to caplacizumab therapy, d — 1 (0-4) — 
Caplacizumab doses — 6 (2-30)  — 
Total caplacizumab doses per UTSW approach  — 160  — 
Total estimated drug cost per UTSW approach  — $1 521 600  — 
Estimated caplacizumab doses per manufacturer recommendations  — 840  — 
Total estimated drug cost per manufacturer recommendations  — $7 988 400  — 
Non-caplacizumab cohort (n = 16),
median (range)
Caplacizumab cohort (n = 17),
median (range)
P value
Time from admission to PLEX initiation, d 0 (0-3) 1 (0-2) .51 
PLEX treatments 11 (5-42) 10 (4-19) .74 
Time from admission to steroid therapy, d 0 (0-7; n = 15) 0 (0-1; n = 17) .19 
Time from admission to rituximab therapy, d 5 (0-15; n = 13) 3 (1-7; n = 15) .04 
Patients receiving bortezomib, n (%) 2 (12.5) 1 (6.2) .54 
Time from admission to caplacizumab therapy, d — 1 (0-4) — 
Caplacizumab doses — 6 (2-30)  — 
Total caplacizumab doses per UTSW approach  — 160  — 
Total estimated drug cost per UTSW approach  — $1 521 600  — 
Estimated caplacizumab doses per manufacturer recommendations  — 840  — 
Total estimated drug cost per manufacturer recommendations  — $7 988 400  — 

UTSW, University of Texas Southwestern.

Value includes all iTTP episodes over the study observation period (n = 17).

Estimated cost based on reported wholesale price of $9510.

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