Antitumor Activity and Safety of Tivozanib (AV-951) in a Phase II Randomized Discontinuation Trial in Patients With Renal Cell Carcinoma

2012 ◽  
Vol 30 (14) ◽  
pp. 1678-1685 ◽  
Author(s):  
Dmitry A. Nosov ◽  
Brooke Esteves ◽  
Oleg N. Lipatov ◽  
Alexei A. Lyulko ◽  
A. A. Anischenko ◽  
...  

Purpose The antitumor activity and safety of tivozanib, which is a potent and selective vascular endothelial growth factor receptor-1, -2, and -3 inhibitor, was assessed in patients with advanced/metastatic renal cell carcinoma (RCC). Patients and Methods In this phase II, randomized discontinuation trial, 272 patients received open-label tivozanib 1.5 mg/d (one cycle equaled three treatment weeks followed by a 1-week break) orally for 16 weeks. Thereafter, 78 patients who demonstrated ≥ 25% tumor shrinkage continued to take tivozanib, and 118 patients with less than 25% tumor change were randomly assigned to receive tivozanib or a placebo in a double-blind manner; patients with ≥ 25% tumor growth were discontinued. Primary end points included safety, the objective response rate (ORR) at 16 weeks, and the percentage of randomly assigned patients who remained progression free after 12 weeks of double-blind treatment; secondary end points included progression-free survival (PFS). Results Of 272 patients enrolled onto the study, 83% of patients had clear-cell histology, 73% of patients had undergone nephrectomy, and 54% of patients were treatment naive. The ORR after 16 weeks of tivozanib treatment was 18% (95% CI, 14% to 23%). Of the 118 randomized patients, significantly more patients who were randomly assigned to receive double-blind tivozanib remained progression free after 12 weeks versus patients who received the placebo (49% v 21%; P = .001). Throughout the study, the ORR was 24% (95% CI, 19% to 30%), and the median PFS was 11.7 months (95% CI, 8.3 to 14.3 months) in the overall study population. The most common grade 3 and 4 treatment-related adverse event was hypertension (12%). Conclusion Tivozanib was active and well tolerated in patients with advanced RCC. These data support additional development of tivozanib in advanced RCC.

1998 ◽  
Vol 84 (5) ◽  
pp. 534-539 ◽  
Author(s):  
Francesco Boccardo ◽  
Alessandra Rubagotti ◽  
Luciano Canobbio ◽  
Enzo Galligioni ◽  
Roberto Sorio ◽  
...  

Background The purpose of the present study was to investigate the therapeutic effectiveness of interleukin-2 (IL-2) and interferon (IFN), either alone or in combination, in comparable groups of patients affected by advanced renal cell carcinoma (RCC). Patients and methods In order to limit selection biases, treatment was allocated on a random basis. Patients randomized to IL-2 alone were scheduled to receive eight rIL-2 24-hour i.v. infusion cycles, days 1 to 4, at a daily dose of 18 x 106 IU/m2 for a total of 25 weeks. Patients randomized to IFN alone were scheduled to receive rIFN-α at a daily dose of 6 x 106 IU/m2, days 1, 3 and 5, every week for a total of 52 weeks. Patients randomized to the combination of IFN and IL-2 were given the same drugs at the same daily doses for a total of 24 weeks. Drug dose was modified according to toxicity. Results Twenty-three percent (95% CI: ± 17.5) of patients treated with IL-2 alone showed an objective response to treatment (9% CR). The corresponding figures in patients treated with IFN alone or IFN plus IL-2 were 9% (95% CI: ± 11.9) and 9% (95% CI: ± 11.9), respectively. Complete responses were observed only in patients treated with IL-2. The median duration of response in the IL-2 arm was 18 months (range, 9.5-24). The duration of the two responses achieved by IFN alone was seven and nine, months, respectively. The corresponding figures in the two patients responding to the combination of IFN with IL-2 were 19 and 27 months, respectively. Total IL-2 dose appeared to be a major predictor of response. Only a minority of patients experienced grade 3-4 toxicity, the incidence being higher in those treated with IL-2 or IL-2 plus IFN. Conclusions Neither IFN nor IL-2 or the combination of the two appear to be very active in patients with advanced RCC, even when trial entry was restricted to patients with relatively indolent disease. This stresses the need for the development of new approaches.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e16097-e16097
Author(s):  
Viktor Grünwald ◽  
Lothar Bergmann ◽  
Peter J. Goebell ◽  
Arne Strauss ◽  
Johannes Meiler ◽  
...  

e16097 Background: Inhibitors of the vascular endothelial growth factor (VEGF), its receptor (Ri) or mammalian target of rapamycin (mTORi) are components of systemic treatment in metastatic renal cell carcinoma (mRCC) and are applied in sequence. We compared the efficacy of VEGFRi and mTORi in 2nd line after failure of bevacizumab/interferon in a phase II trial. Methods: Key inclusion criteria were: measurable mRCC (all histologies), ECOG 0-1, IMDC risk: good or intermediate, adequate organ function. Tumor status was assessed in week 11 and q12 wks., thereafter. Measures of Health-related quality of life (HR-QoL) utilized FKSI-10 and was assessed in week 4, 10 and q12 wks., thereafter. 1st line consisted of bevacizumab 10mg/kg q2wks. + interferon 9*106 IE 3x/week (BEV/IFN). Upon progression or intolerance, patients were re-screened and randomized between VEGFRi (axitinib 5 mg BID, dose-escalation permitted; sunitinib 50 mg OD, 4-2 regimen) and everolimus (EVE) treatment (10 mg OD). Cross-over occurred at time of progression or intolerance. Improvement of 2nd line PFS-rate at 6 mo. from 50% to 65% was the primary endpoint. Secondary endpoints were PFS, total PFS, ORR, OS, safety and HR-QoL. Results: Between November 2012 and June 2015 a total of 22 of 100 patients were included and at that time stopped for poor accrual. 10 pts. (46%) were randomized to receive 2nd line treatment with everolimus (n = 5) or VEGFRi (n = 5). At study entry (2/10) 20% had nephrectomy. ECOG 0 was recorded in 20% (EVE) and 60% (VEGFRi), respectively. Objective response rate (ORR) to 1st line BEV/IFN was 20%. In 2nd line treatment all patients experienced adverse events (AE). Grade ≥3 AEs occurred in 2/5 (40%) (EVE) and 4/5 (80%) (VEGFRi) pts., respectively. SAEs occurred in 3/5 (60%) in each arm. ORR was 1/5 (20%) for axitinib and 0/5 (0%) for EVE. PFS rate at 180 days was 20% in each arm. Median PFS was 3.7 (EVE) and 2.2 mo. (VEGFRi) HR 1.0 (95%CI 0.26-3.85; p = 0.997). OS was comparable between arms HR 1.12 (95%CI 0.27-4.61; P = 0.872). 7 pts. crossed over to 3rd line treatment. Conclusions: The small number of pts. randomized to EVE or VEGFRi is a major limitation of our trial, but may mirror the current change of treatment reality. However, no significant difference was detected for the PFS rate at 6 mo., indicating the limited activity of EVE or VEGFRi in 2nd line treatment. Clinical trial information: NCT01731158.


2006 ◽  
Vol 24 (16) ◽  
pp. 2505-2512 ◽  
Author(s):  
Mark J. Ratain ◽  
Tim Eisen ◽  
Walter M. Stadler ◽  
Keith T. Flaherty ◽  
Stan B. Kaye ◽  
...  

Purpose This phase II randomized discontinuation trial evaluated the effects of sorafenib (BAY 43-9006), an oral multikinase inhibitor targeting the tumor and vasculature, on tumor growth in patients with metastatic renal cell carcinoma. Patients and Methods Patients initially received oral sorafenib 400 mg twice daily during the initial run-in period. After 12 weeks, patients with changes in bidimensional tumor measurements that were less than 25% from baseline were randomly assigned to sorafenib or placebo for an additional 12 weeks; patients with ≥ 25% tumor shrinkage continued open-label sorafenib; patients with ≥ 25% tumor growth discontinued treatment. The primary end point was the percentage of randomly assigned patients remaining progression free at 24 weeks after the initiation of sorafenib. Results Of 202 patients treated during the run-in period, 73 patients had tumor shrinkage of ≥ 25%. Sixty-five patients with stable disease at 12 weeks were randomly assigned to sorafenib (n = 32) or placebo (n = 33). At 24 weeks, 50% of the sorafenib-treated patients were progression free versus 18% of the placebo-treated patients (P = .0077). Median progression-free survival (PFS) from randomization was significantly longer with sorafenib (24 weeks) than placebo (6 weeks; P = .0087). Median overall PFS was 29 weeks for the entire renal cell carcinoma population (n = 202). Sorafenib was readministered in 28 patients whose disease progressed on placebo; these patients continued on sorafenib until further progression, for a median of 24 weeks. Common adverse events were skin rash/desquamation, hand-foot skin reaction, and fatigue; 9% of patients discontinued therapy, and no patients died from toxicity. Conclusion Sorafenib has significant disease-stabilizing activity in metastatic renal cell carcinoma and is tolerable with chronic daily therapy.


2021 ◽  
Vol 39 (6_suppl) ◽  
pp. 326-326
Author(s):  
Giuseppe Procopio ◽  
Chiara Pircher ◽  
Melanie Claps ◽  
Valentina Guadalupi ◽  
Alessia Mennitto ◽  
...  

326 Background: Antiangiogenic therapy has been a milestone in the treatment of metastatic renal cell carcinoma (mRCC) for years. The positive results with immune-checkpoint inhibitors (ICI) are changing the frontline standard of care of mRCC patients (pts). To date, prospective data are lacking to determine the efficacy of antiangiogenic therapy in pts progressed to ICI. The multikinase inhibitor Cabozantinib (cabo) has shown prolonged survival in pre-treated mRCC pts. Moreover, by targeting multiple pathways and crucial kinases involved in microenvironment-driven immune-escape, it may represent an ideal agent to be used sequentially after ICI. Methods: This is the first prospective open label, single arm, multicenter, phase II study to evaluate efficacy and safety of Cabo in pts with mRCC pre-treated with adjuvant or first line PD-1/PD-L1-based therapy (as monotherapy or in combination with an TKI or anti CTLA-4). Cabo 60 mg once daily was administered until progressive disease (PD) or unacceptable toxicity. The primary endpoint was progression free survival (PFS), secondary endpoints were overall survival (OS), objective response rate (ORR) and safety. Results: Among 23 patients enrolled, 22 were included in the analysis (one was excluded for screening failure). Median age was 59.5 years (range: 29-74), 69.5% were male. At baseline, Karnofsky performance status was 100 in 59% of pts, 80-90 in 31.8% and 70-80 in 9%. 22.7% of pts had a good Heng score, 50% intermediate and 27.2% poor. Median duration of the previous therapy with anti PD-1 or anti-PD-L1 compounds was 4.3 months. Pts received an average of 4.7 months of Cabo. Among evaluable cases, 6 pts (27.2%) achieved a partial response and 5 pts (22.7%) stable disease. The median follow-up was 7.2 months and the median PFS was 7.2 months. 2 pts discontinued treatment for toxicity, 8 pts for PD, 1 patient discontinued treatment for different reason than PD, 11 pts are still on treatment. Grade (G) 3 adverse events (AEs) occurred in 22.7% of pts; the most common AEs were hand and foot syndrome (HFS) (G1 in 36.3% of pts, G2 18.1%, G3 4.5%), diarrhea (G1 31.8%, G2 18.1%), hypothyroidism (G1 9.09 %, G2 22.7 %), mucositis (G1 36.3%, G2 4,5%), and fatigue (G1 18.1%, G2 18.1%). Transitory withholding of cabo was observed in 63.6% of pts (14/22) and it was due to AEs in the 90% of the cases. For 5/22 pts (22.7 %), dose reduction was needed to manage AEs. The most common AEs leading to temporary drug interruption were HFS G1-3 (13.9%), liver disfunction G1-G2 (13.9%), diarrhea G1-G2 (11.6%), nausea and vomiting G2 (11.6 %) and fatigue G2 (9.3%). Conclusions: So far, the treatment with cabo after a I line anti-PD-1 based immunotherapy resulted active and well tolerated. Clinical trial information: NCT03463681 .


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