Cytoreductive nephrectomy in metastatic papillary renal cell carcinoma: Results from the International Metastatic Renal Cell Carcinoma Database Consortium (IMDC).

Authors

null

Jeffrey Graham

Tom Baker Cancer Centre, University of Calgary, Calgary, AB, Canada

Jeffrey Graham , Connor Wells , Frede Donskov , Jae-Lyun Lee , Anna Paola Fraccon , Felice Pasini , Camillo Porta , I. Alex Bowman , Georg A. Bjarnason , D. Scott Ernst , Sun Young Rha , Benoit Beuselinck , Aaron Richard Hansen , Scott A. North , Christian K. Kollmannsberger , Lori Wood , Ulka N. Vaishampayan , Sumanta K. Pal , Toni K. Choueiri , Daniel Yick Chin Heng

Organizations

Tom Baker Cancer Centre, University of Calgary, Calgary, AB, Canada, Aarhus University Hospital, Aarhus, Denmark, University of Ulsan College of Medicine/ Asan Medical Center, Seoul, Korea, Republic of (South), CDC Pererzoli, Peschiera del Garda, Italy, Oncologia Medica Ospedale Santa Maria della Misericordia, Rovigo, Italy, IRCCS San Matteo University Hospital Foundation, Pavia, Italy, UT Southwestern Medical Center, Dallas, TX, Sunnybrook Research Institute, Toronto, ON, Canada, London Health Sciences Centre, London, ON, Canada, Yonsei University College of Medicine, Seoul, Korea, Republic of (South), University Hospitals Leuven, Leuven Cancer Institute, Leuven, Belgium, Princess Margaret Cancer Centre, Toronto, ON, Canada, University of Alberta Cross Cancer Institute, Edmonton, AB, Canada, British Columbia Cancer Agency - Vancouver Centre, Vancouver, BC, Canada, QEII Health Sciences Centre, Halifax, NS, Canada, Karmanos Cancer Center, Detroit, MI, City of Hope Comprehensive Cancer Center, Duarte, CA, Dana-Farber Cancer Institute/ Brigham and Women’s Hospital/ Harvard Medical School, Boston, MA

Research Funding

Other

Background: There is evidence that cytoreductive nephrectomy (CN) may be beneficial in metastatic renal cell carcinoma (mRCC), but the role of CN in patients with papillary histology is unclear. Methods: Using the IMDC database, a retrospective analysis was performed on patients with papillary mRCC treated with or without CN. Baseline characteristics and IMDC risk factors were collected. Median overall survival (OS) was determined for both patient groups. Multivariable Cox regression analysis was performed to control for imbalances in individual IMDC risk factors. Results: In total, 353 patients with papillary mRCC with (n = 75) or without (n = 278) a component of clear cell histology were identified. Median follow-up time was 57.1 months (95% CI 32.9-77.8) and the OS from the start of first-line targeted therapy for the entire cohort was 13.2 months (95% CI 12.0-16.1). Baseline characteristics are in Table 1 and patients who had CN were more likely to be younger, with better KPS, and have sarcomatoid histology. Median OS in patients with CN was 16.3 months (95% CI 13.1-19.2), compared to 8.6 months (95% CI 6.1-12.2; p < 0.0001) in the no CN group. When adjusted for individual IMDC risk factors, the hazard ratio (HR) of death for CN was 0.62 (95% CI 0.45-0.85; p = 0.0031). Conclusions: The use of CN in patients with mRCC and papillary histology appears to be associated with improved survival when compared to no CN after adjustment for risk criteria. A clinical trial in this rare population may not be possible but this data does corroborate with clear cell literature.

No CN
(n = 109)
CN
(n = 244)
p value
Median Age67 years59 years0.0001
KPS < 8028/90 (31%)41/214 (19%)0.0231
Diagnosis to therapy < 1 year99/109 (91%)204/244 (84%)0.0723
Calcium > ULN16/89 (18%)30/193 (16%)0.6072
Hemoglobin < LLN69/99 (70%)136/216 (63%)0.2445
Neutrophils > ULN25/98 (26%)38/209 (18%)0.1383
Platelets > ULN26/98 (27%)42/213 (20%)0.1769
Brain metastases3/106 (2.8%)5/204 (2.5%)0.8417
Sarcomatoid histology0/8931/215 (14%)0.0002

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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 581)

DOI

10.1200/JCO.2018.36.6_suppl.581

Abstract #

581

Poster Bd #

E18

Abstract Disclosures

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