Patients with metastatic papillary renal cell carcinoma (RCC) who may benefit from sunitinib therapy (tx): Results from an international metastatic RCC database.

2014 ◽  
Vol 32 (4_suppl) ◽  
pp. 486-486 ◽  
Author(s):  
Daniel Kejzman ◽  
Maya Gottfried ◽  
Natalie Maimon ◽  
Hans J. Hammers ◽  
Mario A. Eisenberger ◽  
...  
Keyword(s):  
Cox Regression ◽  
Clear Cell ◽  
Progression Free Survival ◽  
Papillary Renal Cell Carcinoma ◽  
Active Smoking ◽  
Factors Associated ◽  
Clinicopathologic Factors ◽  
Papillary Rcc ◽  
Clear Cell Rcc ◽  
Pre Treatment

486 Background: The VEGFR inhibitor sunitinib is a standard tx for metastatic clear cell RCC. Data on the activity of sunitinib in metastatic non clear cell RCC, is limited by small or heterogeneous (mixed histology or targeted therapies) studies, that revealed a lower antitumor activity than in patients with clear cell histology. We aimed to analyze the activity of sunitinib in a large international cohort of patients with metastatic papillary RCC, and to characterize patients who may benefit for this therapy. Methods: Records from metastatic papillary RCC patients treated with sunitinib in 10 centers across 3 countries were retrospectively reviewed. Univariate and multivariate analyses of association between clinicopathologic factors and clinical outcome were performed using Cox regression. Results: Between 2004-2013, 74 patients (median age 60, 68% male) with metastatic papillary RCC were treated with sunitinib. 78% had a prior nephrectomy. HENG risk was good 11%, intermediate 56%, and poor 33%. 21% were active smokers, and 31% users of angiotensin system inhibitors. 24% and 41% had liver and bone metastases, respectively. 55% had a pre-treatment neutrophil to lymphocyte ratio (NLR) >3. 40% had dose reduction/treatment interruption. Sunitinib induced hypothyroidism and hypertension (HTN) occurred in 30% and 43%, respectively. 70% achieved a clinical benefit (partial response + stable disease), while 30% had disease progression within the first 3 months of therapy. Median progression free survival (PFS) and overall survival (OS) were 5 and 12 months, respectively. 27% had a PFS ≥ 1 year, and 26% survived ≥ 2 years. Factors associated with PFS were sunitinib induced HTN (HR 0.31, p=0.002), pre-treatment NLR >3 (HR 5.3, p=0.001), and active smoking (HR 2.5, p=0.01). Factors associated with OS were sunitinib induced hypothyroidism (HR 0.4, p=0.024), past nephrectomy (HR 0.41, p=0.02), pre-treatment NLR >3 (HR 2.25, p=0.036), and active smoking (HR 2.3, p=0.027). Conclusions: Clinicopathologic factors may be used to identify patients with metastatic papillary RCC who may benefit from sunitinib tx. A prolonged PFS and OS were noted in 26-27% of patients.

Clinical prognostic factors associated with outcome in patients with metastatic clear-cell renal cell cancer treated with everolimus.

2012 ◽  
Vol 30 (5_suppl) ◽  
pp. 443-443
Author(s):  
Robert J. Amato ◽  
Amber Flaherty ◽  
Somyata Saxena ◽  
Mika Stepankiw
Keyword(s):  
Prognostic Factors ◽  
Renal Cell Cancer ◽  
Renal Cell ◽  
Clear Cell ◽  
Left Kidney ◽  
Cell Cancer ◽  
Progression Free Survival ◽  
Factors Associated ◽  
Kidney Involvement ◽  
Clear Cell Rcc

443 Background: Everolimus, an oral mammalian target of rapamycin (mTOR) inhibitor, has demonstrated efficacy affects tumor growth by blocking growth factor stimulation, arresting cell cycle progression, and inhibiting angiogenesis. mTOR inhibitors and agents with primarily antiangiogenic activity have been shown to have efficacy in renal cell cancer (RCC). This study expanded the original everolimus study of 41 patients with metastatic clear cell renal cell cancer to 66 patients to examine outcome and clinical prognostic factors associated with outcome Methods: Patients had confirmed predominantly clear cell RCC. Everolimus was given at a dose of 10 mg daily orally without interruption (28-day cycle), with dose modifications for toxicity (graded according to National Cancer Institute Common Toxicity Criteria, version 3.0). Patients were evaluated every 2 cycles (8 weeks) using Response Evaluation Criteria in Solid Tumors (RECIST). Results: Of 66 evaluable and treated patients, 73% were male, and 45% were >60. Forty-five percent had right kidney involvement, 49% left kidney involvement, and 6% had dual kidney involvement. Eighty-six percent had prior systemic therapy, and 76% of patients had at least two metastatic sites including lung (72%), liver (26%), bone (48%), lymph nodes (50%), adrenal (21%), and other (39%). Twenty-four (36%) of patients had a progression-free survival (PFS) of ≥12 months, and 40 patients (61%) had an overall survival (OS) ≥12 months. Factors most likely to have an influence on OS benefit was high LDH, alkaline phosphatase, and calcium; low hemoglobin; and prior treatment with tyrokinase inhibitors. Conclusions: Everolimus was found to have clinical benefit in patients with clear cell RCC. Clinical prognostic factors may help determine patients most likely to receive benefit from everolimus. Information regarding curves and correlation between prognostic factors and OS and PFS will be presented.

Influence of risk factors for renal cell carcinoma (RCC) on outcome of patients (pts) with metastatic disease (mRCC) treated with sunitinib (Su).

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e15058-e15058 ◽  
Author(s):  
Raanan Berger ◽  
Daniel Keizman ◽  
Maya Ish-Shalom ◽  
Hans J. Hammers ◽  
Mario A. Eisenberger ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cox Regression ◽  
Clear Cell ◽  
Performance Status ◽  
Independent Effect ◽  
Active Smoking ◽  
Ecog Performance Status ◽  
Elevated Alkaline Phosphatase ◽  
Factors Associated ◽  
Never Smokers

e15058 Background: Obesity, smoking, hypertension (HTN) and diabetes (DM) are risk factors for RCC development. Their presence has been associated with a worse outcome of therapy (tx) in various metastatic cancers. We sought to determine their influence on the progression free survival (PFS) and overall survival (OS) of Su tx in mRCC. Methods: We performed an international multicenter retrospective study of pts with mRCC, who were treated with Su. We analyzed the pre-tx status of smoking (active vs past vs never), BMI (obese= BMI≥30 vs overweight=BMI 25-29.9 vs normal weight= BMI <25), HTN, DM, and known prognostic factors including past nephrectomy, clear cell vs non clear cell histology, initial diagnosis to Su tx initiation time, ≥ 2 metastasis (mets) sites, lung/liver/bone mets, ECOG performance status, anemia, calcium level > 10, elevated alkaline phosphatase (AP), pre-tx neutrophil to lymphocyte ratio (NLR) >3, Su induced HTN, use of angiotensin system inhibitors (ASIs), past cytokines/targeted tx, and median Su dose/cycle. PFS and OS were determined by the Kaplan-Meier method. Multivariate analyses using Cox Regression model were performed to determine their independent effect. Results: Between 2004-2011, 244 pts with mRCC were treated with Su. 51 pts were active smokers, 58 obese, 62 diabetic, and 145 had pre-tx HTN. In the entire pt cohort, median PFS was 9 months (mos) and OS 21 mos. Factors associated with PFS were active smoking (HR 2.29, p= 0.003, median PFS 4 vs 10 mos in past smokers vs 12 mos in never smokers), non clear cell histology (HR 1.7, p=0.042), pre-tx NLR >3 (HR 1.92, p<0.0001) and the use of ASIs (HR 0.58, p=0.03). Factors associated with OS were were active smoking (HR 1.85, p= 0.018, median OS 11 vs 25 mos in past smokers vs 27 mos in never smokers), AP (HR 1.9, p=0.017), pre-tx NLR >3 (HR 2.5, p<0.0001), and liver mets (HR 1.86, p=0.021). BMI, DM, and pre-tx HTN were not associated with PFS or OS. Conclusions: Active smoking may decrease the PFS and OS of pts with mRCC that are treated with Su. BMI, DM, and pre-tx HTN were not found to be associated with outcome. These results should be investigated prospectively, and if validated applied in clinical practice and clinical trials.

Influence of risk factors for renal cell carcinoma (RCC) on outcome of patients (pts) with metastatic disease treated with sunitinib.

2012 ◽  
Vol 30 (5_suppl) ◽  
pp. 437-437 ◽  
Author(s):  
Daniel Keizman ◽  
Maya Ish-Shalom ◽  
Jason David Taksey ◽  
Roberto Pili ◽  
Hans J. Hammers ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cox Regression ◽  
Clear Cell ◽  
Performance Status ◽  
Independent Effect ◽  
Active Smoking ◽  
Ecog Performance Status ◽  
Elevated Alkaline Phosphatase ◽  
Factors Associated ◽  
Never Smokers

437 Background: Obesity, smoking, hypertension (HTN) and diabetes (DM) are risk factors for RCC development. Their presence has been associated with a worse outcome of therapy (tx) in various metastatic cancers. We sought to determine their influence on the progression free survival (PFS) and overall survival (OS) of Su tx in mRCC. Methods: We performed a multicentre retrospective study of pts with mRCC, who were treated with Su. We analyzed the pre-tx status of smoking (active vs past vs never), BMI (obese=BMI≥30 vs overweight=BMI 25-29.9 vs normal weight=BMI <25), HTN, DM, and known prognostic factors including past nephrectomy, clear cell/non clear cell histology, time from initial diagnosis to Su tx, > 2 metastasis (mets) sites, lung/liver/bone mets, ECOG performance status, anemia, calcium level > 10 mg/dL, elevated alkaline phosphatase (AP), platelets count, pre-tx neutrophil to lymphocyte ratio (NLR) >3, Su induced HTN, use of angiotensin system inhibitors (ASIs), past cytokines/targeted tx, and mean Su dose/cycle. PFS and OS were determined by the Kaplan-Meier method. Multivariate analyses using Cox Regression model were performed to determine their independent effect. Results: Between 2004-2011, 209 pts with mRCC were treated with Su. 40 pts were active smoker, 51 obese, 55 diabetic, and 122 had pre-tx HTN. In the entire pt cohort, median PFS was 8 months (mos) and OS 15 mos. Factors associated with PFS were active smoking (HR 2.5, p= 0.005, median PFS 4 vs 10 mos in past smokers vs 10 mos in never smokers), non clear cell histology (HR 1.8, p=0.023), pre-tx NLR >3 (HR 0.2, p<0.0001) and the use of ASIs (HR 1.66, p=0.028). Factors associated with OS were were active smoking (HR 2.1, p= 0.03, median OS 8.5 vs 18 mos in past smokers vs 18 mos in never smokers), AP (HR 1.76, p=0.049), pre-tx NLR >3 (HR 0.294, p<0.0001), and liver mets (HR 0.553, p=0.04). BMI, DM, and pre-tx HTN were not associated with PFS or OS. Conclusions: Active smoking may decrease the PFS and OS of pts with mRCC that are treated with Su. BMI, DM, and pre-tx HTN were not found to be associated with outcome. These results should be investigated prospectively, and if validated applied in clinical practice and clinical trials.

scholarly journals Various Histological Types of Renal Cell Carcinoma Associated With Hereditary Papillary Renal Cell Carcinoma (HPRCC): a Case Report

2021 ◽  
Author(s):  
Sophie FERLICOT ◽  
Pierre-Alexandre Just ◽  
Eva Compérat ◽  
Etienne Rouleau ◽  
Frédérique Tissier ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Clear Cell ◽  
Papillary Renal Cell Carcinoma ◽  
Type I ◽  
Renal Cell Carcinomas ◽  
Genomic Study ◽  
Papillary Rcc ◽  
Clear Cell Rcc

Abstract Background: Hereditary papillary renal cell carcinoma (HPRCC) is a rare autosomal dominant disease characterized by the development of multiple and bilateral papillary type I renal cell carcinomas (RCC) and papillary adenomas caused by activating mutations in the MET proto-oncogene. Classically, distinctive histological features of RCC are described according to the familial renal cell carcinoma syndrome. To date, no clear cell RCC has been reported in HPRCC syndrome. Case presentation: We describe the case of a 51-year-old man with a germline MET mutation, who developed numerous papillary tumors but also unexpectedly clear cell renal cell carcinomas. During the follow-up, an adrenal metastasis was observed seven years after the initial diagnosis corresponding to a clear cell RCC metastasis. Using FISH, the metastatic tumor presented a trisomy of chromosomes 7 and 17. These genomic alterations are usually detected in papillary RCC, highlighting the potential link between both histological subtypes of tumors and the HPRCC syndrome.Conclusions: The pathologist must be aware that the presence of a non-papillary RCC associated with numerous papillary tumors should not exclude the diagnostic suspicion of HPRCC and thus to perform a thorough genomic study.

scholarly journals Detection of a peritumoral pseudocapsule in patients with renal cell carcinoma undergoing robot-assisted partial nephrectomy using enhanced MDCT

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Makoto Toguchi ◽  
Toshio Takagi ◽  
Yuko Ogawa ◽  
Satoru Morita ◽  
Kazuhiko Yoshida ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Partial Nephrectomy ◽  
Renal Cell ◽  
Clear Cell ◽  
Robot Assisted ◽  
High Attenuation ◽  
Papillary Rcc ◽  
Clear Cell Rcc

AbstractTo investigate the detection of peritumoral pseudocapsule (PC) using multi-detector row computed tomography (MDCT) for tumors resected by robot-assisted laparoscopic partial nephrectomy (RAPN) for T1 renal cell carcinoma (RCC). Study participants included 206 patients with clinical T1 RCC who underwent RAPN between October 2017 and February 2018. Two radiologists who were blinded to the pathological findings evaluated the computed tomography (CT) images. Radiological diagnosis of a PC was defined by a combination of observations, including a low-attenuation rim between the tumor and renal cortex in the cortico-medullary phase and a high-attenuation rim at the edge of the tumor in the nephrogenic or excretory phase. A PC was detected on CT in 156/206 tumors (76%) and identified by pathology in 182/206 (88%) tumors including 153/166 (92%) clear cell RCC, 13/14 (93%) papillary RCC, and 7/16 (44%) chromophobe RCC. In the whole cohort, CT findings showed a sensitivity of 81.3% (148/182), specificity of 66.7% (16/24), and positive predictive value of 94.9% (148/156). When the data were stratified according to pathological subtypes, MDCT was observed to have a sensitivity of 86.9% (133/153) and specificity of 61.5% (8/13) in clear cell RCC, sensitivity of 38.5% (5/13) and specificity of 100% (1/1) in papillary RCC, and sensitivity of 44.4% (4/7) and specificity of 66.7% (6/9) in chromophobe RCC. A low or high-attenuation rim around the tumor in the cortico-medullary or nephrographic-to-excretory phase indicates a PC of RCC, though the accuracy is not satisfactory even with 64- or 320-detector MDCT.

WITH INCREASING TUMOUR SIZE HISTOPATHOLOGICAL FEATURES ARE MORE AGGRESSIVE IN CLEAR CELL RCC, BUT NOT IN PAPILLARY RCC

2006 ◽  
Vol 5 (2) ◽  
pp. 257
Author(s):  
M. Remzi ◽  
C. Seitz ◽  
M. Özsoy ◽  
E. Tanovic ◽  
H.C. Klingler ◽  
...  
Keyword(s):  
Clear Cell ◽  
Tumour Size ◽  
Histopathological Features ◽  
Papillary Rcc ◽  
Clear Cell Rcc

Outcomes with novel combinations in non-clear cell renal cell carcinoma(nccRCC): ORACLE study.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 4580-4580
Author(s):  
Deepak Kilari ◽  
Aniko Szabo ◽  
Pooja Ghatalia ◽  
Tracy L Rose ◽  
Nicole Weise ◽  
...  
Keyword(s):  
Clear Cell ◽  
Objective Response ◽  
Mammalian Target Of Rapamycin ◽  
Progression Free Survival ◽  
Mtor Inhibitors ◽  
New Combination ◽  
Clinical Activity ◽  
Cell Renal Cell Carcinoma ◽  
Clear Cell Rcc ◽  
Rhabdoid Differentiation

4580 Background: Despite advances in the treatment of clear cell RCC, there is a paucity of data to guide management of nccRCC due to the heterogeneity and rarity of these tumors. The clinical activity of new combination therapies (including immunotherapy (IO), anti-vascular endothelial growth factor inhibitors (VEGF), and mammalian target of rapamycin (mTOR) inhibitors) in metastatic nccRCC is not known. Methods: In this multicenter retrospective analysis, we explored the efficacy of combination systemic therapies in patients with nccRCC. Baseline and follow-up demographic, clinical, treatment, and radiographic data were collected. The primary endpoint was objective response rate (ORR) assessed by investigator review. Secondary endpoints include progression- free survival (PFS), disease control rate (DCR), median duration of response (DOR), overall survival (OS), and biomarker correlates. Results: Among 66 included patients, median age was 59 yr; 60% were male and 62% white. Histologies included papillary (38%), chromophobe (17%), unclassified (24%), translocation (12%), and other (9 %). Sarcomatoid and/or rhabdoid differentiation was present in 18%, 70% had prior nephrectomy, 86% were IMDC intermediate/poor risk, 29% and 32% had liver and bone metastasis respectively. 67% received combination treatment in the first line. Comparison of outcomes based on treatment regimen is shown in the table. Conclusions: Antitumor activity was observed with novel combinations in nccRCC which warrants further prospective studies. Response rates and survival with combination therapy in this dataset remain inferior to rates seen in clear cell RCC.[Table: see text]

scholarly journals Clear Cell Papillary Renal Cell Carcinoma

2019 ◽  
Vol 143 (9) ◽  
pp. 1154-1158 ◽  
Author(s):  
Jianping Zhao ◽  
Eduardo Eyzaguirre
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Renal Cell ◽  
Clear Cell ◽  
Papillary Renal Cell Carcinoma ◽  
Genetic Profiling ◽  
Papillary Rcc ◽  
High Index Of Suspicion ◽  
Cell Changes ◽  
Histopathologic Features

Clear cell papillary renal cell carcinoma (ccpRCC) is a recently recognized entity and represents the fourth most common variant of renal cell carcinoma (RCC). It has unique morphologic and immunohistochemical features and demonstrates an indolent clinical behavior. Microscopically, it may mimic other RCCs with clear cell features, such as clear cell RCC, translocation RCC, and papillary RCC with clear cell changes. A high index of suspicion is required to keep ccpRCC in the differential diagnosis of RCCs with features of clear cell and/or papillary architecture. In equivocal cases, immunohistochemistry is generally sufficient to substantiate the diagnosis of ccpRCC. In this review, we discuss the clinical, gross, and histopathologic features, immunohistochemical and genetic profiling, and prognosis of ccpRCC.

Activity of tivozanib (AV-951) in patients (Pts) with different histologic subtypes of renal cell carcinoma (RCC).

2011 ◽  
Vol 29 (7_suppl) ◽  
pp. 327-327 ◽  
Author(s):  
P. Bhargava ◽  
B. Esteves ◽  
M. Al-Adhami ◽  
D. Nosov ◽  
O. N. Lipatov ◽  
...  
Keyword(s):  
Disease Control ◽  
Kinase Inhibitor ◽  
Clear Cell ◽  
Objective Response ◽  
Growth Factor Receptor ◽  
Progression Free Survival ◽  
Histologic Subtype ◽  
Papillary Rcc ◽  
Vegfr Inhibitor ◽  
Histologic Subtypes

327 Background: This phase 2 randomized discontinuation trial evaluated tivozanib, a potent and selective vascular endothelial growth factor receptor (VEGFR)-1, -2, and -3 kinase inhibitor. Median progression-free survival (PFS) in all pts was 11.8 mo, and the objective response rate (ORR) was 27%. Methods: Pts received 1.5 mg/d tivozanib (3 wk on, 1 wk off = 1 cycle). A retrospective analysis evaluated efficacy and safety by histologic subtype. Response was evaluated by independent radiology review using standard RECIST criteria. Results: 272 pts were enrolled: 70% were male; median age was 56 y (range, 26–79). 226 (83%) pts had clear cell (CC) RCC; 46 had non–clear cell (NCC) RCC, including 11 with papillary RCC. Of pts with CC RCC, 176 (78%) had undergone nephrectomy; of pts with NCC RCC, 23 (50%) had undergone nephrectomy. Median treatment duration was 8.5 mo (range, 0.03– 23.8) as of the data cutoff. Median PFS was 12.5 mo (range, 9.9–17.7) for pts with CC RCC, not yet reached for pts with papillary RCC, and 5.4 mo (range, 3.7–12.0) for pts with other NCC subtypes. ORR and disease control rate (DCR; ORR + stable disease), respectively, were 29% and 85% for pts with CC RCC, 18% and 100% for pts with papillary RCC, and 17% and 74% for pts with other NCC subtypes. For pts with CC RCC, median PFS, ORR, and DCR, respectively, were 14.8 mo, 32%, and 88% for those who had undergone nephrectomy and 8.9 mo, 18%, and 76% for those who had not. Among pts with NCC RCC, median PFS was 6.6 mo for pts who had undergone nephrectomy and 7.2 mo for pts without nephrectomy; ORR was 17% for both NCC subgroups, with a DCR of 78% for pts who had undergone nephrectomy and 83% for pts who had not. Common drug- related adverse events (AEs) for pts with CC and NCC RCC, respectively, included hypertension (49% and 48%), dysphonia (22% and 22%), asthenia (12% and 13%), and diarrhea (13% and 9%). The most common grade ≥3 drug-related AE was hypertension (CC, 8%; NCC, 4%). Conclusions: Disease control was observed for pts with all RCC histologic subtypes. The rate of AEs was similar among patients with CC and NCC RCC and consistent with that of a selective VEGFR inhibitor with minimal off-target toxicities. Tivozanib is currently being tested in a phase 3 trial in pts with CC RCC. [Table: see text]

A randomized, phase II efficacy assessment of multiple MET kinase inhibitors in metastatic papillary renal carcinoma (PRCC): SWOG S1500.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. TPS4599-TPS4599 ◽  
Author(s):  
Sumanta K. Pal ◽  
Catherine M. Tangen ◽  
Ian Murchie Thompson ◽  
Brian M. Shuch ◽  
Naomi B. Haas ◽  
...  
Keyword(s):  
Phase Ii ◽  
Metastatic Disease ◽  
Kinase Inhibitors ◽  
Clear Cell ◽  
Performance Status ◽  
Progression Free Survival ◽  
Type I ◽  
Type Ii ◽  
Randomized Phase Ii ◽  
Clear Cell Rcc

TPS4599 Background: PRCC constitutes approximately 15% of RCC cases, and no standard of care exists for metastatic disease. Approved VEGF- and mTOR-directed therapies for clear cell RCC in metastatic PRCC (mPRCC) have generally been ineffective. Trials assessing sunitinib and everolimus in non-clear cell RCC show a numerical advantage in progression-free survival (PFS) with sunitinib therapy. Prospective studies evaluating sunitinib in mPRCC show a broad range of efficacy, with PFS ranging from 1.6-6.6 months. Another possible approach to treating mPRCC is to target the MET protooncogene, which is frequently altered across both type I and type II disease. SWOG 1500 is a randomized, phase II study which will compare sunitinib to three MET-directed therapies in pts with mPRCC. Methods: Eligible pts will have PRCC (type I, type II or NOS), Zubrod performance status 0-1, and measurable metastatic disease. Pts may have received up to 1 prior systemic therapy, with the exception of prior VEGF-directed treatments. Treated brain metastases are allowed. Tissue must be available for central pathologic review of papillary subtype. Pts will receive either oral sunitinib, cabozantinib, crizotinib or savolitinib in a 1:1:1:1 randomization, with stratification by (1) prior therapy (0 vs 1) and (2) PRCC subtype (type I vs type II vs NOS). The primary endpoint of the study is to compare PFS with sunitinib to PFS with MET-directed therapies. Secondary endpoints in the study include comparison of response rate, overall survival and safety profile. Translational aims of the study include correlation of clinical outcome with MET mutation, copy number and other markers of MET signaling. Radiographic assessment will be performed every 12 wks. Interim analyses are planned for each arm. A total of 275 pts will be enrolled, with 26 pts registered as of Jan 30, 2017. Clinical trial information: NCT02761057.

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