Meta-analysis of upfront VEGF targeted therapy prior to nephrectomy in metastatic clear cell renal cancer.

Authors

null

Akhila Ganeshi Wimalasingham

Barts Health NHS Trust St Bartholomew's Hospital, London, United Kingdom

Akhila Ganeshi Wimalasingham , Alfonso Gomez De Liano Lista , Roderick de Bruijn , John B. A. G. Haanen , Bernadett Szabados , Peter Hall , Christian U. Blank , Simon Chowdhury , Thomas Hopkins , Thomas Powles , Axel Bex

Organizations

Barts Health NHS Trust St Bartholomew's Hospital, London, United Kingdom, The Netherlands Cancer Institute, Amsterdam, Netherlands, Netherlands Cancer Institute, Amsterdam, Netherlands, Guy's, King's and St. Thomas' Hospitals, London, United Kingdom, Barts Cancer Institute-Queen Mary University of London, London, United Kingdom

Research Funding

Other

Background: The safety and efficacy of upfront VEGF targeted, before nephrectomy in metastatic clear cell renal cancer (mCCRC) has not been robustly evaluated. Methods: In this study we performed a meta-analysis of 3 studies (NCT) with an almost identical design and included a single institution experience (which adopted this approach as a standard). Patients with newly diagnosed mCCRC had 12-18 weeks of sunitinib or pazopanib therapy prior to planned cytoreductive nephrectomy (CN). Results: 224 patients were included in this analysis (54% had sunitinib and 46% pazopanib). Overall, 73% had MSKCC intermediate risk and 23% poor risk disease. 20% of patients had an ECOG performance status of 0.84% of patients obtained stable disease or a response to therapy (by RECIST) before surgery. The median reduction of size of the primary tumour was 14%. 60% of patients had CN. The commonest reason for not performing CN was progression of disease. Progression free survival (PFS) and overall survival (OS) was 6.2 (95% CI 5.7-6.7) and 13 (95% CI: 10.2-15.7) respectively. Patients with MSKCC poor risk disease had a poor outcome irrespective of CN (OS = 7.5 months 95% CI 5.8-9.2). A comparison of sunitinib and pazopanib showed no significant difference in median PFS 7.1 (95% CI, 6.0-9.2) and 6.0 (95% CI: 5.1-6.8) or surgical complications (p<0.05). Conclusions: Outcomes with this approach are in line with expected survival for this population. Results with sunitinib and pazopanib were similar. This approach is attractive for patients with MSKCC intermediate risk disease.

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Abstract Details

Meeting

2017 Genitourinary Cancers Symposium

Session Type

Poster Session

Session Title

Poster Session C: Penile, Urethral, and Testicular Cancers; Renal Cell Cancer

Track

Renal Cell Cancer,Penile, Urethral, and Testicular Cancers

Sub Track

Renal Cell Cancer

Citation

J Clin Oncol 35, 2017 (suppl 6S; abstract 514)

DOI

10.1200/JCO.2017.35.6_suppl.514

Abstract #

514

Poster Bd #

G5

Abstract Disclosures

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