Table 1.

Regimens for patients with lenalidomide-refractory disease

RegimenMedian prior lines of therapyLen-refractory n (% of total study population)mPFS for all populationmPFS for first relapsemPFS, mo for len refractoryPFS HR for len refractorymPFS, months for len refractory at first relapse or HRApproved therapy
CASTOR Dara-Vd 2 (1-10) 60 (24) 16.7 27 7.8 0.44 NR YES after at least 1 prior line 
Vd 81 (33) 7.1 7.9 4.9  NR  
CANDOR Dara-Kd56 2 (1-3) 99 (32) NE NE (HR, 0.68) NE 0.474 HR, 0.11 (0.02-0.52) YES (FDA: after 1-3 prior lines; Dara-Kd56 & Dara-Kd70; EMA: after 1 prior line only Dara-Kd56) 
Kd56 55 (36) 15.8 11.1  
IKEMA Isa-Kd56 2 (1-3) 57 (32) NE NE (HR, 0.59) NE 0.60 (0.34-1.06) HR, 0.69 for refractory to len at last line YES (FDA: after 1-3 prior lines; EMA: after 1 prior line) 
Kd56 42 (34) 19.15 15.7  
APOLLO Dara-Pd 2 (1-5) 120 (79) 12.4 14.1 9.9 0.66 NR YES 
Pd 122 (80) 6.9 12.6 6.5  NR  
ICARIA Isa-Pd 3 (2-11) 144 (94) 11.5 − 11.4 0.59 11.6 vs 5.7 if Len-refractory at last line (HR, 0.50) YES (after >2 lines of therapy) 
Pd 140 (92) 6.5 − 5.59  
ELOQUENT-3 Elo-Pd 3 (2-8) 59 (98) 10.3 − NR NR NR YES (after >2 lines of therapy) 
Pd 55 (96) 4.7 − NR NR NR  
ENDEAVOR Kd 2 (1-3) 113 (24) 18.7 22.2 8.6 0.80 <18 mo of prior len: 10.8 vs 6.7 mo YES after at least 1 prior line 
Vd 122 (26) 9.4 10.1 6.6  
OPTIMISMM Bort-Pd 2 (1-3) 200 (71) 11.2 20.7 NR 0.65 17.6 vs 9.5; HR, 0.55 YES (EMA: after at least 1 prior line that included lenalidomide) 
Pd 191 (69) 7.1 11.6 NR   
BOSTON Sel-Vd 1 (1-3) 77 (39) 13.93 16.62 9.59 0.63 NR YES (FDA only: after at least 1 prior line) 
Vd 77 (37) 9.46 10.68 7.23 NR  
BELLINI Ven-Vd 1 (1-3) 38 (20) 22.4 22.4 NE 0.75 NR NO 
Vd 27 (28) 11.5 11.4 14.8  NR  
RegimenMedian prior lines of therapyLen-refractory n (% of total study population)mPFS for all populationmPFS for first relapsemPFS, mo for len refractoryPFS HR for len refractorymPFS, months for len refractory at first relapse or HRApproved therapy
CASTOR Dara-Vd 2 (1-10) 60 (24) 16.7 27 7.8 0.44 NR YES after at least 1 prior line 
Vd 81 (33) 7.1 7.9 4.9  NR  
CANDOR Dara-Kd56 2 (1-3) 99 (32) NE NE (HR, 0.68) NE 0.474 HR, 0.11 (0.02-0.52) YES (FDA: after 1-3 prior lines; Dara-Kd56 & Dara-Kd70; EMA: after 1 prior line only Dara-Kd56) 
Kd56 55 (36) 15.8 11.1  
IKEMA Isa-Kd56 2 (1-3) 57 (32) NE NE (HR, 0.59) NE 0.60 (0.34-1.06) HR, 0.69 for refractory to len at last line YES (FDA: after 1-3 prior lines; EMA: after 1 prior line) 
Kd56 42 (34) 19.15 15.7  
APOLLO Dara-Pd 2 (1-5) 120 (79) 12.4 14.1 9.9 0.66 NR YES 
Pd 122 (80) 6.9 12.6 6.5  NR  
ICARIA Isa-Pd 3 (2-11) 144 (94) 11.5 − 11.4 0.59 11.6 vs 5.7 if Len-refractory at last line (HR, 0.50) YES (after >2 lines of therapy) 
Pd 140 (92) 6.5 − 5.59  
ELOQUENT-3 Elo-Pd 3 (2-8) 59 (98) 10.3 − NR NR NR YES (after >2 lines of therapy) 
Pd 55 (96) 4.7 − NR NR NR  
ENDEAVOR Kd 2 (1-3) 113 (24) 18.7 22.2 8.6 0.80 <18 mo of prior len: 10.8 vs 6.7 mo YES after at least 1 prior line 
Vd 122 (26) 9.4 10.1 6.6  
OPTIMISMM Bort-Pd 2 (1-3) 200 (71) 11.2 20.7 NR 0.65 17.6 vs 9.5; HR, 0.55 YES (EMA: after at least 1 prior line that included lenalidomide) 
Pd 191 (69) 7.1 11.6 NR   
BOSTON Sel-Vd 1 (1-3) 77 (39) 13.93 16.62 9.59 0.63 NR YES (FDA only: after at least 1 prior line) 
Vd 77 (37) 9.46 10.68 7.23 NR  
BELLINI Ven-Vd 1 (1-3) 38 (20) 22.4 22.4 NE 0.75 NR NO 
Vd 27 (28) 11.5 11.4 14.8  NR  

EMA, European Medicines Agency; FDA, Food and Drug Administration; NE, not evaluable/not reached; NR, not reported.