Efficacy and safety of sorafenib in patients with advanced clear-cell renal cell carcinoma (RCC) with diabetes: Results from the phase III TARGET study

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e16099-e16099
Author(s):  
S. Oudard ◽  
T. Eisen ◽  
C. Szczylik ◽  
M. Siebels ◽  
S. Negrier ◽  
...  

e16099 Background: Results of the phase III TARGET trial, a randomized, double-blind, placebo-controlled study of sorafenib (SOR) treatment in pts with clear-cell RCC in whom 1 prior systemic therapy had failed, indicated that SOR is effective and safe for pts with advanced RCC, leading to the approval of SOR for the treatment of advanced RCC. Diabetes can be associated with increased morbidity during treatment in a variety of malignancies. Therefore, an exploratory subset analysis was performed to evaluate the efficacy and safety of SOR in pts enrolled in TARGET with or without diabetes at baseline. Methods: Pts (N=903) with advanced clear-cell RCC, ECOG PS 0–2, and low- or intermediate-risk MSKCC score were randomized 1:1 to SOR 400 mg BID or placebo (PBO). End points included OS, PFS, and safety. A planned independently-assessed formal analysis of PFS showed significant benefit for SOR over PBO; consequently, pts assigned to PBO were able to cross over to SOR. Results: Pt demographics were similar for all subsets. Pre- crossover data by subset are shown in the table . The incidence of drug-related adverse events (AEs) across subgroups was consistent with that for the overall population. In pts with vs without diabetes, treatment with SOR was not associated with increased hyperglycemia (1 pt/arm in the without diabetes subgroups only) or hypertension. Conclusions: The safety profile of SOR in pts with diabetes was comparable with that for the overall study population. SOR was well tolerated and AEs were manageable. Trends in improved PFS were observed for SOR regardless of baseline diabetes status; however, the small diabetic subset limits interpretation of a SOR OS benefit in this subpopulation. *Final PFS of overall study population based on independent review from Jan 2005; all other data from May 2005 database [Table: see text] [Table: see text]

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e16057-e16057
Author(s):  
T. E. Hutson ◽  
J. Bellmunt ◽  
C. Porta ◽  
M. Staehler ◽  
C. Szczylik ◽  
...  

e16057 Background: Results of the phase III multicenter TARGET study, a randomized, double-blind, placebo (PBO)- controlled study of tx with SOR in pts with clear-cell RCC in whom 1 prior systemic therapy had failed, indicated that SOR is effective (PFS 5.5 vs 2.8 mo, HR=0.44, P<0.000001, and 39% increase in survival for SOR vs PBO, HR=0.71, P=0.015) and safe in pts with advanced RCC (Escudier et al. N Engl J Med. 2007). With a database cut-off of Sept 8, 2006, we analyzed the safety of long-term use of SOR in pts in TARGET (study start Nov 2003). Methods: Pts (N=903) with advanced metastatic clear-cell RCC that had progressed after 1 systemic tx, ECOG PS 0–2, and low- or intermediate-risk MSKCC score were randomized 1:1 to SOR 400 mg BID or PBO. End points included OS, PFS, and safety. A single planned analysis of PFS showed a significant benefit of SOR over PBO; consequently, pts assigned to PBO were offered SOR. Descriptive analysis of safety and efficacy of pts treated >1 year (y) was conducted. Results: 169/903 pts were randomized to SOR and treated >1 y and 27 pts treated >2 y. Due to crossover of PBO to SOR, only 6 pts randomized to PBO were treated with SOR >1 y. Pts treated with SOR >1 y had median PFS of 10.9 months and a response rate of 22.5%. Median tx duration was 20 months. Drug-related adverse events (AEs) were mainly grades 1 and 2 and occurred early during tx (see Table ); 31% and 22% of pts required dose interruption and reduction, respectively, because of AEs. Conclusions: Long-term tx with SOR did not result in new toxicities or an increase in overall incidence of tx-related AEs. Toxicity was not cumulative and no increase in grades 3/4 AEs was observed. Pts with preexisting cardiac disease or hypertension tolerated long-term tx with SOR; no dose reduction was required. No increase in cardiovascular toxicity was observed in this pt population. Long-term tx of pts with advanced RCC with SOR is medically manageable, with a predictable AE profile. [Table: see text] [Table: see text]


2011 ◽  
Vol 29 (7_suppl) ◽  
pp. 310-310 ◽  
Author(s):  
R. J. Motzer ◽  
P. Bhargava ◽  
B. Esteves ◽  
M. Al-Adhami ◽  
W. Slichenmyer ◽  
...  

310 Background: Drugs that block vascular endothelial growth factor (VEGF) pathway signaling, such as the tyrosine kinase inhibitor sorafenib, have become standard treatment for pts with RCC. Tivozanib (AV-951) is a potent, selective small-molecule pan-VEGF receptor (VEGFR) inhibitor, with activity against the VEGFR-1, -2, and -3 kinases at subnanomolar concentrations. Preliminary results from a phase II randomized discontinuation trial of tivozanib (1.5 mg/d; 3 wks on, 1 wk off) in pts with RCC demonstrated an objective response rate (ORR) of 27% and a median progression-free survival (PFS) of 11.8 mo by independent radiology review, with a favorable safety profile. Patients with clear cell RCC who had undergone nephrectomy had an ORR of 32% and median PFS of 14.8 mo (Bhargava, et al. ASCO 2010. Abstract 4599). Based on this antitumor activity a phase III, randomized, controlled, global, multicenter trial is currently in progress to compare tivozanib with sorafenib in pts with advanced RCC. Methods: Approximately 500 adults with clear cell RCC who have undergone nephrectomy and received ≤ 1 prior systemic treatment (no prior VEGF-targeted therapy) were randomized 1:1 to treatment with tivozanib or sorafenib. Pts are receiving 1.5 mg/d tivozanib orally in 4-week cycles (3 wks on, 1 wk off) or continuous 400 mg sorafenib orally twice daily. The primary endpoint will be PFS by independent radiology review; secondary endpoints will include overall survival, ORR, and duration of response. Safety is being monitored through adverse event reporting and laboratory analyses; toxicities are graded using the NCI Common Terminology Criteria for Adverse Events, version 3.0. The effect of therapy on health-related quality of life will be compared between arms using kidney cancer-specific (FKSI-DRS), oncology (FACT-G), and general (EQ-5D) assessments. Pharmacokinetics and biomarker analyses will be performed. Results: Pending. Conclusions: Enrollment completed in August 2010. An ongoing extension study will allow access to tivozanib for pts who demonstrate progressive disease on sorafenib, as well as long-term treatment with tivozanib or sorafenib for pts who demonstrate clinical benefit. [Table: see text]


2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 692-692
Author(s):  
Abigail Sy Chan ◽  
Gregory Russell Pond ◽  
Guru Sonpavde ◽  
Ajjai Shivaram Alva

692 Background: IO and VEGFR/TKI are approved treatment options, either alone or combination, in advanced clear cell RCC. Currently, there is a lack of evidence comparing efficacy and safety outcomes amongst these therapies. We sought to compare the published data for the various options with respect to efficacy and safety. Methods: A literature search using PubMed, clinicaltrials.gov, ASCO and ESMO meeting abstract databases from January 1, 2015 to June 30, 2019 to identify eligible clinical trials in advanced clear cell RCC involving at least one immunotherapy agent was performed. Due to small sample sizes in the various cohorts, descriptive statistics were provided. Weighting of estimates was based on sample size of the intervention arms. Results: 14 studies involving 6,197 pts were identified. The median age was 62 years (54.8, 64), men constituting median of 75%, and prior TKI receipt in 63%. There were 7 studies in each treatment arm. The efficacy outcomes did not demonstrate statistical differences. In the safety analyses, IO + VEGFR/TKI demonstrated the highest serious adverse event rate, correlating with treatment discontinuation rates. Conclusions: IO + IO and IO + VEGFR/TKI showed comparable efficacy and toxicity outcomes in the treatment of advanced clear cell RCC. There is a non-significant trend towards increased efficacy in some outcomes with IO + VEGFR/TKI, with possibly increased adverse events. Further studies with patient level data, cross-comparative trials, and predictive biomarkers are needed to establish a therapeutic matrix for RCC pts.[Table: see text]


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