Skip to main content
. 2008 Jul 1;99(2):275–282. doi: 10.1038/sj.bjc.6604461

Table 2. Response, toxicity and dose during IRI treatment.

  IRI
CAPIRI
  TA6 TA6 TA7     TA6 TA6 TA7    
UGT1A1 TA6 TA7 TA7 Total   TA6 TA7 TA7 Total  
Evaluable for response N=44 N=30 N=3 N=77 P-value N=61 N=58 N=8 N=127 P-value
Best overall response (%)
 CR           1 (2) 3 (5) 1 (13) 5 (4)  
 PR 7 (16) 4 (13)   11 (14)   29 (48) 22 (38) 4 (50) 55 (43)  
 SD 27 (61) 16 (53) 3 (100) 46 (60)   27 (44) 30 (52) 2 (25) 59 (46)  
 PD 10 (23) 10 (33)   20 (26)   4 (7) 3 (5) 1 (13) 8 (6)  
Response rate, %, (95% exact CI) 15.9 (6.6:30.1) 13.3 (3.8:30.7) 0.0 (0%:70.8) 14.3 (7.4:24.1) 0.595L 49.2 (36.1:62.3) 43.1 (30.2:56.8) 62.5 (24.5:91.5) 47.2 (38.3:56.3) 0.537L
Disease control, %, rate (95% exact CI) 77.3 (62.2:88.5) 66.7 (47.2:82.7) 100 (29.2:100) 74.0 (62.8:83.4) 0.240L 93.4 (84.1:98.2) 94.8 (85.6:98.9) 87.5 (47.3:99.7) 93.7 (88.0:97.2) 0.759L
                     
  TA6 TA6 TA7     TA6 TA6 TA7    
UGT1A1 TA6 TA7 TA7 Total   TA6 TA7 TA7 Total  
Evaluable for toxicity (grade 3–4) N=46 N=31 N=3 N=80 P-value N=65 N=62 N=11 N=138 P-value
Overall (%)
 All cycles 20 (43.5) 12 (38.7) 3 (100) 35 (43.8) Etrend 0.56 33 (50.8) 33 (53.2) 8 (72.7) 74 (53.6) Etrend 0.35
 Cycle 1 3 (6.5) 4 (12.9) 0 (0.0) 7 (8.8) FE 0.430 3 (4.6) 6 (9.7) 1 (9.1) 10 (7.2) Etrend 0.44
                     
Febrile neutropenia (%)
 All cycles 1 (2.2) 6 (19.4) 0 (0.0) 7 (8.8) FE 0.015 1 (1.5) 4 (6.5) 2 (18.2) 7 (5.1) Etrend 0.031
 Cycle 1 1 (2.2) 2 (6.5) 0 (0.0) 3 (3.8) FE 0.561 0 (0.0) 1 (1.6) 2 (18.2) 3 (2.2) Etrend 0.008
                     
Diarrhea
 All cycles 7 (15.2) 7 (22.6) 2 (66.7) 16 (20.0) Etrend 0.090 14 (21.5) 14 (22.6) 4 (36.4) 32 (23.2) Etrend 0.43
 Cycle 1 3 (6.5) 4 (12.9) 0 (0.0) 7 (8.8) FE 0.430 3 (4.6) 6 (9.7) 1 (9.1) 10 (7.2) Etrend 0.44
                     
  TA6 TA6 TA7     TA6 TA6 TA7    
UGT1A1 TA6 TA7 TA7 Total   TA6 TA7 TA7 Total  
Evaluable for dose analysis N=41 N=29 N=3 N=73 P-value N=61 N=58 N=11 N=130 P-value
Number of cycles
 Median (range) 6 (3–17) 6 (1–15) 8 (4–8) 6 (1–17) 0.33$ 9 (1–30) 9 (1–32) 9 (1–30) 9 (1–32) 0.66$
                     
Total dose ( g )
 Median (range) 4.4 (1.7–11.2) 3.6 (0.7–10.8) 4.0 (2.6–4.9) 4.2 (0.7–11.2) 0.39$ 3.8 (0.4–10.7) 3.7 (0.4–14.7) 3.0 (0.5–14.7) 3.7 (0.4–14.7) 0.44$
                     
Total dose ( g  m −2 )
 Median (range) 2.1 (1.0–6.0) 2.0 (0.3–5.3) 2.3 (1.4–2.4) 2.1 (0.3–6.0) 0.25$ 2.1 (0.3–6.2) 2.0 (0.2–8.0) 1.9 (0.2–7.6) 2.0 (0.2–8.0) 0.51$
                     
Dose (mg m −2 ) per cycle
 Median (range) 347 (266–390) 336 (272–364) 302 (284–355) 341 (266–390) 0.45$ 242 (84–257) 242 (190–277) 242 (156–253) 242 (84–277) 0.83$
Reduction of IRI after cycle 1 8 5 2 15 0.45E 12 13 3 28 0.62E
                     
Cycle of first reduction (%)
 Cycle 2–3 4 (50) 4 (80) 1 (50) 9 (60) 0.544L 5 (42) 9 (69) 1 (33) 15 (54) 0.444L
 Cycle 4–6 1 (13) 1 (20)   2 (13) NS 4 (33) 2 (15) 1 (33) 7 (25) NS
 Cycle 7–9 1 (13)   1 (50) 2 (13) NS 2 (17) 1 (8) 1 (33) 4 (14) NS
 Cycle ⩾10 2 (25)     2 (13) NS 1 (8) 1 (8)   2 (7) NS

CAPIRI=irinotecan first-line combination therapy (250 mg m−2 every 3 weeks, with capecitabine); CI=confidence interval; CR=complete response; E=exact; Etrend=exact-values for trend; FE=Fisher's exact; IRI=irinotecan (350 mg m−2 every 3 weeks) second-line single-agent therapy; L=logistic regression; NS=statistically non-significant difference; PD=progressive disease; PR=partial response; SD=stable disease.

Response is defined as CR or PR, disease control as CR, PR or SD.

P-values are calculated by L, Etrend, E, FE or Kruskal–Wallis.

$Kruskal–Wallis.