Table 1.

Characteristics of 68 pretreatment tumor specimens derived from 41 patients receiving anti–PD-1 therapy

CharacteristicNumber
Patient response to treatment (n = 41)
 Complete2
 Partial8
 Stable disease ≥ 6 months2
 No response29
Patient diagnosis (n = 41)
 Melanoma16
 NSCLCa12
 Kidney cancer6
 Colorectal cancer5
 CRPC2
Number of tumor specimens analyzed per patient (n = 41)
 125
 29
 35
 40
 52
Primary vs. metastatic tumor (n = 68)
 Primary29
 Metastasis39
Anatomic location (n = 68)
 Lymph node (metastasis)17
 Lung (primary or metastasis)15
 Other36
  • aTwelve cases include 9 adenocarcinomas and 3 squamous cell carcinomas of the lung.