H Izzedine1, L Derosa2, G Le Teuff3, L Albiges4, B Escudier4. 1. Department of Nephrology, Monceau Park International Clinic, Paris. Electronic address: hassan.izzedine@clinique-monceau.com. 2. Department of Medical Oncology, Gustave Roussy, Villejuif, France; Department of Medical Oncology, Santa Chiara Hospital, Pisa, Italy. 3. Department of Biostatistics and Epidemiology, Gustave Roussy, Villejuif, France. 4. Department of Medical Oncology, Gustave Roussy, Villejuif, France.
Abstract
BACKGROUND: To examine the association between hypertension (HTN), angiotensin system inhibitors (ASI) use and survival outcomes in patients with metastatic renal cell carcinoma (mRCC) treated with sunitinib (SU). METHODS: We retrospectively reviewed all patients with mRCC who received SU as first-line treatment in Gustave Roussy from April 2004 to November 2013. The HTN (either pre-existing or secondary to SU), use of ASI (either before or during SU) were analysed. Overall survival (OS) and progression-free survival (PFS) of different exposures were compared with log-rank test. The associations between exposures and survival outcomes were estimated with hazard ratios (HRs) and 95% confidence interval (CI) through a multivariable Cox model adjusted for age, gender, International mRCC Database Consortium risk group and histology. RESULTS: Among 213 patients with a 3.6-year median follow-up, 134 were hypertensive and 105 were ASI users with a significant association between the two exposures (P < 0.0001). Hypertensive patients have longer OS (median: 41.6 versus 16.4 months, P < 0.0001) and longer PFS (median: 12.9 versus 5.6 months, P < 0.0001) than non-hypertensive patients (n = 79). ASI users (n = 105) had more HTN_PRE compared with those (n = 108) who did not (65% versus 19%, P < 0.001). Multivariable analysis showed that hypertensive patients were significantly associated with OS (P = 0.05) and marginally with PFS (P = 0.06) while ASI intake was significantly associated with better OS [HR = 0.40; 95% CI (0.24-0.66), P < 0.001] and PFS [HR = 0.55 (0.35-0.86), P = 0.009]. The latter remain statistically significantly associated after controlling for the number of metastases. There is no difference on outcome between patients who receive ASI before starting SU and those who received ASI during SU treatment. CONCLUSION: Concomitant use of ASI may significantly improve OS and PFS in mRCC patients receiving SU. HTN is marginally associated with the outcome in these patients.
BACKGROUND: To examine the association between hypertension (HTN), angiotensin system inhibitors (ASI) use and survival outcomes in patients with metastatic renal cell carcinoma (mRCC) treated with sunitinib (SU). METHODS: We retrospectively reviewed all patients with mRCC who received SU as first-line treatment in Gustave Roussy from April 2004 to November 2013. The HTN (either pre-existing or secondary to SU), use of ASI (either before or during SU) were analysed. Overall survival (OS) and progression-free survival (PFS) of different exposures were compared with log-rank test. The associations between exposures and survival outcomes were estimated with hazard ratios (HRs) and 95% confidence interval (CI) through a multivariable Cox model adjusted for age, gender, International mRCC Database Consortium risk group and histology. RESULTS: Among 213 patients with a 3.6-year median follow-up, 134 were hypertensive and 105 were ASI users with a significant association between the two exposures (P < 0.0001). Hypertensivepatients have longer OS (median: 41.6 versus 16.4 months, P < 0.0001) and longer PFS (median: 12.9 versus 5.6 months, P < 0.0001) than non-hypertensivepatients (n = 79). ASI users (n = 105) had more HTN_PRE compared with those (n = 108) who did not (65% versus 19%, P < 0.001). Multivariable analysis showed that hypertensivepatients were significantly associated with OS (P = 0.05) and marginally with PFS (P = 0.06) while ASI intake was significantly associated with better OS [HR = 0.40; 95% CI (0.24-0.66), P < 0.001] and PFS [HR = 0.55 (0.35-0.86), P = 0.009]. The latter remain statistically significantly associated after controlling for the number of metastases. There is no difference on outcome between patients who receive ASI before starting SU and those who received ASI during SU treatment. CONCLUSION: Concomitant use of ASI may significantly improve OS and PFS in mRCC patients receiving SU. HTN is marginally associated with the outcome in these patients.
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