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. Author manuscript; available in PMC: 2017 Jul 1.
Published in final edited form as: Cancer Immunol Res. 2016 May 13;4(7):569–573. doi: 10.1158/2326-6066.CIR-15-0281

Table 2.

Response to Pembrolizumab based on Progression Free Survival (PFS) to Ipilimumab

Ipilimumab PFS
<90 days (n=57) ≥90 days (n=59) P value
Objective Response Rate 20 (35%) 29 (49%) 0.12
Clinical Benefit Rate 26 (46%) 39 (66%) 0.03
<45 days (n=12) ≥180 days (n=20)
Objective Response Rate 3 (25%) 11 (55%) 0.09
Clinical Benefit Rate 3 (25%) 16 (80%) 0.002