Table 2.

Therapies for patients with CLL with available data on patients with BTKi resistance mutations

TreatmentStudy descriptionNo. of patients with documented BTKi resistance mutationsNo. of ORR in patients with BTKi resistance mutations
(%)
No. of median PFS in patients with BTKi resistance mutations
(95% CI)
Clinical trial reference
Venetoclax Prospective phase 2 17 12 (71) 21.9 (4.4-NR) 34 
Duvelisib Prospective phase 1 0 (0) NA 79 
ARQ-531 Prospective phase 1 9* 8 (89) NA 80 
LOXO-305 Prospective phase 1 24 17 (70) NA .81 
TreatmentStudy descriptionNo. of patients with documented BTKi resistance mutationsNo. of ORR in patients with BTKi resistance mutations
(%)
No. of median PFS in patients with BTKi resistance mutations
(95% CI)
Clinical trial reference
Venetoclax Prospective phase 2 17 12 (71) 21.9 (4.4-NR) 34 
Duvelisib Prospective phase 1 0 (0) NA 79 
ARQ-531 Prospective phase 1 9* 8 (89) NA 80 
LOXO-305 Prospective phase 1 24 17 (70) NA .81 

NA, not available; NR, not reached; ORR, overall response rate.

*

No. of patients with BTKi-resistant mutations that were treated at the recommended dose of 65 mg daily.

Twenty-four patients on study had a BTK C481S mutation, and 4 additional patients had a PLC2 mutation, but response data were not available for this population.

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