Outcomes of patients (pts) with metastatic clear-cell renal cell carcinoma (mCCRCC) treated with second-line (2L) vascular endothelial growth factor receptor tyrosine kinase inhibitors (VEGFR-TKI) after first-line (1L) immune checkpoint inhibitors (ICI).

Authors

null

Amishi Yogesh Shah

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

Organizations

UT MD Anderson Cancer Center, Houston, TX

Research Funding

Other

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.

VariableTotal n (%)PFS rate of
2L TKI at 6 mo
CR (n)PR (n)SD (n)P value
Male30 (70)0.81012180.43
Female13 (30)0.80157
Localized at presentation13 (30)1.000940.03
Metastatic at Presentation30 (70)0.731821
IMDC good risk6 (14)1.000420.65
IMDC intermediate risk27 (63)0.801917
IMDC poor risk10 (23)0.73046
Nephrectomy35 (81)0.87116180.22
Primary in-situ8 (19)0.63017
Pazopanib12 (28)0.740660.63
Axitinib16 (37)0.780511
Cabozantinib15 (35)0.92168

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Abstract Details

Meeting

2018 Genitourinary Cancers Symposium

Session Type

Poster Session

Session Title

Poster Session C: Renal Cell Cancer

Track

Renal Cell Cancer

Sub Track

Renal Cell Cancer

Citation

J Clin Oncol 36, 2018 (suppl 6S; abstr 682)

DOI

10.1200/JCO.2018.36.6_suppl.682

Abstract #

682

Poster Bd #

K11

Abstract Disclosures

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