UT MD Anderson Cancer Center, Houston, TX
Amishi Yogesh Shah , Emily Lemke , Jianjun Gao , Anuradha Chandramohan , Matthew T. Campbell , Amado J. Zurita , Lianchun Xiao , Jennifer Wang , Paul Gettys Corn , Eric Jonasch , Padmanee Sharma , Nizar M. Tannir
Background: Little data exists on objective response rates (ORR), progression-free survival (PFS), and safety of 2L VEGFR-TKI after 1L ICI therapy in pts with mCCRCC. Methods: This is a retrospective study of pts with mCCRCC who received 2L VEGFR-TKI after progressive disease (PD) with 1L ICI. Tumor response was assessed by a blinded radiologist using RECIST 1.1. Descriptive statistics, the Fisher’s test, and Kaplan-Meier method were used. Results: We report on 43 pts who were treated at MDACC from 2015 till present. Median age at mCCRCC diagnosis was 59 years (range: 43-72). 33 pts had lung mets, 20 had LN mets, 14 had bone mets, and 3 had liver mets. As 1L therapy, 20 pts received nivolumab + ipilimumab, 14 received nivolumab + bevacizumab, and 9 received nivolumab. Median time on ICI therapy was 29.4 weeks. All pts had resolution of Grade 3/4 AEs from ICI and PD before initiation of VEGFR-TKI. One patient (2%) had CR, 17 pts (40%) had PR, and 25 pts (58%) had SD, leading to 100% disease control rate (DCR) as best response to 2L VEGFR-TKI. Median PFS was 10.0 months (95% CI: 7.4, NA). Estimated 1-yr overall survival (OS) was 87.5% (95% CI: 74.6 - 100). Seven pts (16%) discontinued VEGFR-TKI therapy because of AEs: Gr 3 transaminitis (3 on pazopanib), Gr 3 hand-foot skin reaction (1 on axitinib), impaired wound healing (1 on axitinib), and Gr 3 pancreatitis (1 on pazopanib, 1 on axitinib). Conclusions: In this retrospective study, we observed a 42% ORR, a 10-month median PFS, and a 100% DCR in pts with mCCRCC who received VEGFR-TKI after PD with ICI. These results inform the design of trials with 2L VEGFR-TKI after failure of ICI therapy.
Variable | Total n (%) | PFS rate of 2L TKI at 6 mo | CR (n) | PR (n) | SD (n) | P value |
---|---|---|---|---|---|---|
Male | 30 (70) | 0.81 | 0 | 12 | 18 | 0.43 |
Female | 13 (30) | 0.80 | 1 | 5 | 7 | |
Localized at presentation | 13 (30) | 1.00 | 0 | 9 | 4 | 0.03 |
Metastatic at Presentation | 30 (70) | 0.73 | 1 | 8 | 21 | |
IMDC good risk | 6 (14) | 1.00 | 0 | 4 | 2 | 0.65 |
IMDC intermediate risk | 27 (63) | 0.80 | 1 | 9 | 17 | |
IMDC poor risk | 10 (23) | 0.73 | 0 | 4 | 6 | |
Nephrectomy | 35 (81) | 0.87 | 1 | 16 | 18 | 0.22 |
Primary in-situ | 8 (19) | 0.63 | 0 | 1 | 7 | |
Pazopanib | 12 (28) | 0.74 | 0 | 6 | 6 | 0.63 |
Axitinib | 16 (37) | 0.78 | 0 | 5 | 11 | |
Cabozantinib | 15 (35) | 0.92 | 1 | 6 | 8 |
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