Partial radiological response (n=20) Progressive and no change (n=20) P-value
CYFRA 21-1(ng/ml)
Pre-treatment level 18.99 ± 44.87 19.97 ± 23.57 0.86
Post-treatment level 15.53 ± 49.66 26.24 ± 33.19 0.43
CEA (ng/ml)
Pre-treatment level 32.23 ± 67.86 72.31 ± 119.74 0.20
Post-treatment level 15.00 ± 40.04 89.04 ± 145.84 0.035*
Table 4: Pre and post-chemotherapeutic CYFRA 21-1 and CEA levels with relation to the radiological response.