TABLE 2

Treatment Responses to FOLFOX and Changes in 18F-FLT Uptake

RECIST 1.0 response achievedAssessment with 18F-FLT PET
Patient no.No. of target lesionsPercentage change in tumor sizeAfter 3 cycles of FOLFOXBest overall responseLesionBaseline SUVMAXPercentage change of SUVMAX on day 2Percentage change of SUVMAX on day 5
15−25.7Stable diseasePartial responseLymph node5.669.65.4
22−2.3Stable diseaseStable diseasePeritoneum5.3107.5−3.8
32−12.8Stable diseasePartial responsePeritoneum2.5380.024.0
43−25.0Stable diseasePartial responseLymph node3.148.480.6
51−16.7Stable diseasePartial responseLung1.75.90.0
61−18.8Stable diseasePartial responseLymph node5.4131.5181.5
74−48.3Partial responsePartial responseLung1.241.7−16.7
848.7Progressive disease*Progressive diseaseLung2.669.2−34.6
95−51.9Partial responseComplete responseLymph node5.236.5−67.3
105−23.2Stable diseaseStable diseaseLymph node8.773.6−21.8
113−46.0Partial responsePartial responseLymph node7.245.8−76.4
126−23.3Stable diseasePartial responseLung1.752.95.9
134−30.7Partial responsePartial responseLymph node5.119.6−23.5
142−8.3Stable diseaseStable diseasePeritoneum10.3141.736.9
153−31.4Partial responsePartial responseLung4.742.6−10.6
162−8.3Stable diseaseStable diseaseLymph node3.72.7−16.2
172−27.3Stable diseasePartial responseLung2.010.015.0
189−13.3Stable diseasePartial responseLymph node11.317.736.3
  • * Patient showed unequivocal progression of nontarget lesions after 3 cycles of FOLFOX.