Customized first-line chemotherapy according to ERCC1 and RRM1 SNPs in advanced NSCLC patients: A phase II study.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e18074-e18074
Author(s):  
Francesca Mazzoni ◽  
Fabiana Letizia Cecere ◽  
Giulia Meoni ◽  
Costanza Giuliani ◽  
Andrea Camerini ◽  
...  
Keyword(s):  
Phase Ii ◽  
Advanced Nsclc ◽  
Excision Repair ◽  
Stage Iv ◽  
First Line ◽  
Open Label ◽  
Expression Levels ◽  
Best Response ◽  
Docetaxel Treatment ◽  
Ecog Ps

e18074 Background: Excision repair cross complementing group 1 (ERCC1) and ribonucleotide reductase1 (RRM1) expression levels are predictive of CT efficacy in some malignancies. “Customized” CT has several advantages: (1) pts are more likely to be treated with agents that they will respond to, (2) pts can be spared the toxicity of agents that they are resistant to, (3) effective treatment can be delivered early in the course of disease. Methods: We planned a phase II multicentric open label study in two steps (based on Simon design) to evaluate ERCC1 SNPs (T118C and C8092A) and RRM1 SNPs (-37C>A and -524T>C) in advanced NSCLC pts. Here we report the first step for futility. Pts received first line CT according to the assessed ERCC1 and RRM1 SNPs status and the correlated expression levels: treatment A (low ERCC1 and low RRM1) Cisplatin plus Gemcitabine; treatment B (low ERCC1 and high RRM1) Cisplatin plus Docetaxel; treatment C (high ERCC1 and low RRM1) Gemcitabine plus Docetaxel; treatment D (high ERCC1 and high RRM1) Docetaxel plus Vinorelbine. Results: 42 pts were enrolled from Jan. 2010 to Oct. 201, 40 pts received at least 1 cycle of CT; median age was 66 yrs (range 47-73); 33 pts were males; 23(55%) pts were ECOG PS 0, 19(45%) PS 1; all pts had stage IV; 23(55%) pts had adenoca, 13(31%) squamous, 6(14%) other types; 25(62%) pts received treatment A, 3(8%) treatment B, 11(27%) treatment C, 1(3%) treatment D. As primary end-point we assessed the overall best response: 18(45%) pts achieved PR, 12(30%) SD, 8(20%) PD, 2(5%) pts were not evaluable. Updated information on OS and PFS will be presented. CT was well tolerated, there were no treatment related deaths. Conclusions: We observed an improved RR in this setting of NSCLC pts treated with CT according to ERCC1 and RRM1 SNPs status. We are planning to continue the second step of this trial (total 110 pts).

A phase II study of sunitinib in recurrent or metastatic endometrial carcinoma: A trial of the PMH Phase II Consortium

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 5576-5576
Author(s):  
S. Welch ◽  
H. J. Mackay ◽  
H. Hirte ◽  
G. F. Fleming ◽  
R. Morgan ◽  
...  
Keyword(s):  
Phase Ii ◽  
Kinase Inhibitor ◽  
Phase Ii Study ◽  
Objective Response ◽  
Progression Free Survival ◽  
Open Label ◽  
Second Stage ◽  
Best Response ◽  
Grade 3 ◽  
Ecog Ps

5576 Background: Endometrial cancer (EC) is the most common gynecologic malignancy. Vascular endothelial growth factor (VEGF) overexpression in EC correlates with poor outcome, thus targeting VEGF is a rational therapeutic approach. We have conducted a two-stage open-label phase II study in advanced EC with sunitinib, an oral tyrosine kinase inhibitor of multiple VEGF receptors. Methods: Eligible pts have recurrent or metastatic EC and have received up to 1 prior chemotherapy (CT) regimen for metastatic disease. Sunitinib is given at 50 mg daily (OD) for 4 consecutive weeks (wks) followed by 2 wks off. Dose could be reduced to 37.5 mg OD and then 25 mg OD in the setting of toxicity. Imaging is repeated every 12 wks. Primary objectives are objective response rate (ORR by RECIST) and rate of 6-month progression-free survival (PFS). If 1 or more responses occur in the first 15 evaluable pts, the study would continue to a second stage (total = 30 pts). Secondary objectives are time to progression (TTP), overall survival (OS), and safety. Results: We report the results of the first stage of this study. Sixteen pts have been treated (median age: 63; range 41–74) with 37 cycles of sunitinib (median 2; range: 1–7). Baseline ECOG PS was 0 (7 pts), 1 (8 pts), or 2 (1 pt). Histology was endometrioid (7 pts), serous (5 pts), clear cell (1 pt), or mixed/other (3 pts). Most pts had high-grade histology (G3: 8; G2: 4; G1: 2; GX: 2). Nine pts had prior adjuvant CT, 8 pts had 1 prior CT for advanced EC, 4 pts had prior hormones and 7 pts had prior radiotherapy. Partial response was achieved by 2 pts (ORR = 12.5%), and 2 other pts had a best response of stable disease; 3 of these pts remained progression-free > 6 months. Median TTP = 2.5 months (95% CI: 2.47-NR), and median OS = 6.2 months (95% CI: 5.1-NR). Grade 3/4 adverse events (AE) in >10% of pts were fatigue (7 pts, 44%) and hypertension (5 pts, 31%). Dose reduction was required for 11 of 16 pts (69%). Two pts were inevaluable after receiving <2 cycles due to AE (grade 4 hyponatremia; grade 3 fatigue) and 1 other pt has yet to complete 2 cycles. Conclusions: Sunitinib shows preliminary activity in EC. This trial will proceed to a second stage of accrual to further explore the efficacy and safety of sunitinib in advanced EC. [Table: see text]

First-line cisplatin (P) with docetaxel (TXT) or vinorelbine (VNR) in patients with advanced non-small cell lung cancer: A randomized phase II trial of the Gruppo Oncologico Italia Meridionale

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e19042-e19042
Author(s):  
V. Gebbia ◽  
D. Galetta ◽  
V. Lorusso ◽  
M. Caruso ◽  
F. Riccardi ◽  
...  
Keyword(s):  
Advanced Nsclc ◽  
Response Rate ◽  
Phase Ii Trial ◽  
Stage Iv ◽  
Hematological Toxicity ◽  
First Line ◽  
Primary Endpoints ◽  
Randomized Phase Ii ◽  
P 75 ◽  
Ecog Ps

e19042 Background: P-based doublets are considered standard therapy for advanced NSCLC. The GOIM consider P/VNR as a reference treatment. P/TXT doublet has been reported to be active but it's not well known its real impact on QoL in comparison to P/VNR. Methods: Pts received either 6 courses of P/TXT or P/VNR with QoL and safety being the primary endpoints. Secondary endpoint included response rate, TTP, OS, and tolerability. Patients with stage IV/IIIB, age ≤70, and ECOG PS 0–1, were eligible. Sample size was calculated according to Fleming's single-stage procedure. QoL was analysed using the EORTC questionnaire, responses and toxicity according to the RECIST and NCI-CTC criteria. Pts were randomized to: TXT 75 mg/m2 over 60 min followed by P 75 mg/m2 on d1 every 21 d, or VNR 30 mg/m2 on d 1,8 and P 80 mg/m2 on d1 every 21 d. Results: From 12/06 to 3/08 86 pts were enrolled: P/TXT 42pts, M/F 32/10, IIIB/IV 8/34, squamous/not-squamous:13/29, median age 61 (r 41–70); P/VNR 44 pts, M/F 35/9, IIIB/IV 10/33, squamous/not-squamous 14/30, median age 62 (r 44/70). No statistically significant differences were observed in QoL among the two arms. Detailed analysis of side-effects showed no difference among the two regimens with the exception of G3–4 neutropenia and leukopenia with were slightly higher in the P/VNR arm (p=0.02 and p=0.0005 respectively). The use of G- CSF/darbopoietin was more frequent in pts treated with P/VNR than in the P/TXT arm (p=0019). Conclusions: Final data show an equivalence among the two arms regarding QoL and activity but with a slightly more hematological toxicity in the P/VNR arm. Both regimens are to be considered as standards in the treated of advanced NSCLC. [Table: see text]

A phase II single arm study of pazopanib and paclitaxel as first-line treatment for unresectable stage III and stage IV melanoma: Interim analysis.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 8524-8524 ◽  
Author(s):  
John P. Fruehauf ◽  
Beverly Alger ◽  
Basmina Parmakhtiar ◽  
James G. Jakowatz ◽  
Claudette Bettis ◽  
...  
Keyword(s):  
Phase Ii ◽  
Interim Analysis ◽  
Cell Cancer ◽  
Stage Iv ◽  
Stage Iii ◽  
First Line ◽  
Open Label ◽  
Unresectable Stage ◽  
Biomarker Analysis ◽  
Stage Iv Melanoma

8524 Background: Metastatic melanoma lacks effective therapy. Pazopanib is a small-molecule inhibitor of VEGFR-1,2,3, PDGFR-B and c-KIT that has antiangiogenic activity in renal cell cancer as well as inhibition of melanoma tumor xenografts. We designed a phase II single arm, open label clinical trial evaluating pazopanib in combination with metronomic paclitaxel as first line therapy for subjects with unresectable stage III and stage IV melanoma. Methods: This protocol utilizes a Simon 2-stage Minimax design, with a planned interim analysis to confirm >3 responders to move to the second stage. To date, 20 eligible patients have been enrolled with 17 evaluable for response. All subjects were treatment naïve and received paclitaxel at 80mg/m2 weekly for three weeks in a 4 week cycle and pazopanib at 800mg as a continuous daily oral dose. The primary endpoint is 6 month progression free survival. Exploratory endpoints include biomarker analysis that may be associated with treatment outcomes (serum VEGF, soluble VEGF R2, serum HIF, serum TSP1 and BRAF mutation status). An additional exploratory endpoint includes the in vitro activity of pazopanib and paclitaxel on patient biopsy material co-cultured with vascular endothelial cells. RECIST criteria were used to define treatment response. Results: For the 17 evaluable patients treated to date the following results were seen: 1 CR, 6 PR’s, 8 SD’s and 2 PD’s. The overall RR (CR+PR) was 40%. Total disease control rate was 80% (PR+SD). The most common AEs/lab abnormalities were nausea (71%), hypertension (57%), fatigue (57%) and vomiting (43%). Grade 3-4 AEs included hypertension (28%), transaminitis (21%) and neutropenia (14%). One patient discontinued for grade 4 transaminitis which subsequently resolved completely. Dose reductions were required for pazopanib in 5 patients and for paclitaxel in one patient. Conclusions: Planned interim analysis of this phase II study demonstrated that pazopanib in combination with paclitaxel was well tolerated and resulted in a 40% response rate, indicating that this combination is of further interest. Accrual will continue to reach a goal of 60 patients.

A phase II trial of weekly cisplatin and docetaxel in advanced non-small cell lung cancer (NSCLC)

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 18150-18150
Author(s):  
M. A. Sovak ◽  
S. Lutzker ◽  
L. Guensch ◽  
M. Joyce ◽  
S. Schwartz ◽  
...  
Keyword(s):  
Phase Ii ◽  
Advanced Nsclc ◽  
Significant Risk ◽  
Stage Iv ◽  
Median Number ◽  
Stage Iv Disease ◽  
Low Incidence ◽  
Grade 3 ◽  
Ecog Ps ◽  
Weekly Cisplatin

18150 Background: Every 3-week cisplatin doublets used to treat advanced NSCLC carry a significant risk of renal and other toxicities and can be difficult for patients with co-morbidities. To reduce these toxicities, we conducted a phase II study to evaluate the efficacy and toxicity of weekly cisplatin and docetaxel in advanced NSCLC. Methods: Eligibility included patients with advanced or recurrent NSCLC, ECOG PS of 0–1, and no prior chemotherapy for metastatic disease. This Cancer Institute of New Jersey network, single stage phase II clinical trial was designed to give 3 weekly doses of cisplatin at 25 mg/m2 and docetaxel at 35 mg/m2, followed by 1 week of rest, for a total of 6 cycles of therapy. Toxicity was monitored weekly, and disease evaluation was performed every 2 cycles. The primary endpoint was response rate (RR); secondary endpoints included time to progression (TTP), median and 1-year survival. Results: From 12/03 to 11/06, 36 patients were enrolled so far. The median age of patients is 63 (range 47–78), the majority is white (n=33), 29 have stage IV disease, and half (n=18) are women. Fourteen have an ECOG PS=0 and 22 with PS=1. Histologic subtypes are: adenocarcinoma (n=24), NSCLC NOS (n=7), squamous (n=5). Eleven patients received = 4 cycles of therapy; median number of cycles delivered is 2.5. Reasons for treatment discontinuation include completion of therapy (n=5), progression of disease (n=16), adverse events (n=8), and patient preference (n=4). Three patients continue on therapy at this time. No complete responses were yet observed; 8 patients (22%) achieved a partial response; 10 patients had stable disease, 10 patients progressed, and 8 came off study before first disease evaluation. Median TTP was 3.1 months (mo) (95% CI 2, 5.5), median survival is 8.3 mo (95% CI 5,16.2) and 1-year survival is 39% (95% CI 20, 57). Most toxicities were mild but also included neutropenia (grade 3, n=1; grade 4, n=1), neutropenic fever (n=1), renal toxicity (grade 3, n=2), nausea (grade 3, n=1), fatigue (grade 3, n=3), diarrhea (grade 3, n=4) and metabolic abnormalities (grade 3, n=3). Conclusion: Weekly cisplatin and docetaxel is well tolerated with a low incidence of toxicity and demonstrates activity similar to every 3-week treatment in patients with advanced NSCLC. No significant financial relationships to disclose.

Observing patients with advanced non-small cell lung cancer (NSCLC): An overview of real world treatments and outcomes in Europe

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 7626-7626
Author(s):  
H. G. Bischoff ◽  
H. Anderson ◽  
B. van den Borne ◽  
F. Langer ◽  
M. I. Leschinger ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Observational Study ◽  
Large Scale ◽  
Advanced Nsclc ◽  
Performance Status ◽  
Stage Iv ◽  
Complete Response ◽  
First Line ◽  
Best Response ◽  
Clinical Trial Results

7626 Background: ACTION (Assessment of Costs and ouTcomes of chemotherapy In an Observational setting in patients with advanced NSCLC) is a prospective, pan-European observational study. The objective of ACTION is to describe advanced NSCLC treatment in routine clinical practice. Methods: Chemonaive patients (pts) aged = 18 yrs with stage IIIb/IV NSCLC were observed for 18 months from presentation for initiation of chemotherapy (CT). All pt care, including CT given, was at the discretion of the pt/physician. Pts were excluded if participating in a clinical trial. Results: 975 pts [Germany (571), UK (193), Finland (99), Netherlands (76), Portugal (36)] were enrolled from April 2003 to September 2004 and observations completed June 2006. Median age was 65 yrs (32–90) with 28.3% of pts aged =70 yrs; 71.3% were male; 65.2% had stage IV disease. WHO performance status (PS) was 0/1 (86.2%), 2 (10.0%), 3/4 (3.8%). Of 487 pts who experienced weight loss, 172 (33.4%) lost >10% body weight in 4 weeks prior to start of CT. First-line CT given: gemcitabine (gem) 10.3%, vinorelbine (vin) 4.3%, gem+platinum 45.0%, vin+platinum 14.6%, taxane+platinum 11.7%, other 14.2%. Complete response (CR) to first-line CT was observed in 1.8% of pts, partial response (PR) 37.9%, stable disease (SD) 28.5%, progressive disease (PD) 17.8%, unknown 13.8%. Second-line CT was planned for 29.2% (285) pts. Median time from initiation of 1st-line to initiation of 2nd-line CT was 5.8 months. Median age was 62 yrs (32–84); 69.8% were male; WHO PS at initiation of 2nd line CT: 0/1 (79%), 2 (17%), 3/4 (4%). Best response to 2nd-line CT: CR 0.4%, PR 9.1%, SD 19.3%, PD 48.8%, unknown 14.3%. Unadjusted median survival time for all pts: 9.3 months (95% CI 8.6–10.3). Overall estimated 1-yr survival was 39.5%. Conclusions: ACTION was the first large-scale observational study in pts with advanced NSCLC in Europe. Overall response rates and survival were consistent with clinical trial results, even though approximately one- third of pts enrolled may have been excluded from clinical trials on the basis of their baseline demographics. No significant financial relationships to disclose.

CCTG BR.34: A randomized trial of durvalumab and tremelimumab +/- platinum-based chemotherapy in patients with metastatic (Stage IV) squamous or nonsquamous non-small cell lung cancer (NSCLC).

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 9502-9502 ◽  
Author(s):  
Natasha B. Leighl ◽  
Scott Andrew Laurie ◽  
Glenwood D. Goss ◽  
Brett Gordon Maxwell Hughes ◽  
Martin R. Stockler ◽  
...  
Keyword(s):  
Adverse Events ◽  
Randomized Trial ◽  
Advanced Nsclc ◽  
Smoking Status ◽  
Objective Response ◽  
Stage Iv ◽  
First Line ◽  
Open Label ◽  
Platinum Based Chemotherapy ◽  
Significant Difference

9502 Background: First-line therapy for advanced NSCLC includes PD-1 checkpoint inhibitor (ICI) monotherapy, and in combination with chemotherapy. Combination ICI have also demonstrated better survival compared to chemotherapy (CM-227). In CCTG BR.34, we compared overall survival (OS) in patients with advanced NSCLC receiving first-line durvalumab plus tremelimumab (DT) with or without platinum doublet chemotherapy (CT). Methods: This international, open-label, randomized trial accrued 301 participants from Canada and Australia, with stage IV NSCLC, EGFR/ALK wildtype, ECOG PS 0/1. Patients were randomized to DT for 4 cycles or DT+CT (pemetrexed- or gemcitabine-platinum), with ongoing D or D + pemetrexed (non-squamous) maintenance until disease progression. Stratification factors included histology, stage IVA v. IVB and smoking status. The primary endpoint was OS; secondary endpoints included progression-free survival (PFS), objective response rate (ORR = CR + PR) and adverse events (AEs). Results: At a median follow up of 16.6 months, no significant difference in OS was seen between the two treatment arms, with a median OS of 16.6 months with DT+CT v. 14.1 months with DT, (estimated HR 0.88, 90% CI 0.67-1.16). PFS was significantly improved in the DT+CT arm (stratified HR 0.67, 95% CI 0.52-0.88; medians 7.7 v. 3.2 months). ORR was higher in the DT+CT arm, 28% v. 14%, (odds ratio 2.1, p=0.001). Preplanned subgroup analysis demonstrated no significant differences in treatment outcomes by plasma TMB (<20 v. ≥20 mut/Mb, Guardant OMNI), age, sex, or smoking status. There was a trend to improved OS with DT+CT in the subgroup with PD-L1 TPS≥50%, (HR 0.64, 95% CI 0.40-1.04, p=0.07). Plasma TMB<20 mut/Mb was associated with shorter survival in both treatment groups (HR 1.99, 95% 1.3-3.1). Toxicity was greater in the DT+CT arm, with grade≥3 adverse events in 82% v. 70%, (p=0.02), most commonly dyspnea, nausea and cough. The incidence of immune-related adverse events was similar between arms (colitis 11%, pneumonitis 6%, endocrinopathy 21%). Grade 5 events occurred in 2.7%, (5 with DT+CT, 3 with DT). Conclusions: The addition of CT to first-line DT did not improve OS in advanced NSCLC. CT+DT improved ORR and PFS, and was associated with greater toxicity. No differential effects were seen by PD-L1 TPS nor bTMB. These data suggest that adding chemotherapy to ICI may be beneficial in those with PD-L1 TPS >=50%, and warrant further analysis in independent datasets. Clinical trial information: NCT03057106 .

A phase II trial of thalidomide (T), irinotecan (I) and gemcitabine (G) in chemonaive patients with advanced non-small cell lung cancer (NSCLC)

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 17068-17068
Author(s):  
A. R. Jazieh ◽  
R. Komrokji ◽  
S. Patil ◽  
D. Flora ◽  
M. Knapp ◽  
...  
Keyword(s):  
Phase Ii ◽  
Advanced Nsclc ◽  
Survival Rates ◽  
Stage Iv ◽  
Thromboembolic Events ◽  
Early Withdrawal ◽  
Common Grade ◽  
Grade 3 ◽  
Ecog Ps ◽  
Lost To Follow Up

17068 Background: Chemotherapy with platinum based doublets provides only a modest benefit in advanced NSCLC with a median overall survival (OS) of 8 months and 1-year survival rate of 33% (Schiller JH et al, N Engl J Med 2002). We performed a phase II study to determine the efficacy of thalidomide, an immunomodulatory agent with antiangiogenic activity, in combination with chemotherapy in patients with advanced NSCLC. Methods: Chemonaive patients with stage IIIB/IV NSCLC with ECOG PS≤ 2 and adequate organ function were treated with G (1000 mg/m2) and I (100 mg/m2) IV on days 1 and 8 of a 21 day cycle. Patients also received T (200 mg orally with escalation as tolerated to a maximum of 400 mg daily). Therapeutic anticoagulation with coumadin was given to the last 11 patients. Results: Twenty four patients were enrolled: median age 57 years (41–76); M:F=17:7; ECOG PS 0/1/2=13/7/3; stage IV: IIIB= 21:3 and CNS involvement: 6. Two pts died before treatment, 1 was ineligible and 1 was lost to follow up. The remaining 20 pts received a median of 4 treatment cycles (range 1–6). The regimen was generally well tolerated and the most common grade 3–4 toxicities encountered were: diarrhea (4); pneumonia (3) and thromboembolic events (3). There were no thromboembolic events after anticoagulation was initiated. Two patients (10%) experienced partial response, 14 (70%) experienced stable disease, 1 had progressive disease. Three patients (15%) were not evaluable for response due to early withdrawal. The median OS was 10.8 months (range 0.6–37+) and 1-year and 2-year survival rates were 37% and 16%, respectively. The median time to progression was 3.6 months (range 0.2–11+). Conclusions: The combination of thalidomide and chemotherapy is reasonably well tolerated and active in advanced NSCLC as evidenced by good OS and 1- and 2-year survival rates. The addition of thalidomide to a non-platinum based regimen appears to compare favorably to the results of the traditional platinum based doublets. [Table: see text]

Capecitabine (X) compared to X + erlotinib (E) as first-line treatment in patients (pts) with metastatic colorectal cancer (MCRC): Interim efficacy results from a randomized phase II study

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 14560-14560 ◽  
Author(s):  
M. Vincent ◽  
I. Kerr ◽  
B. Dingle ◽  
M. J. MacKenzie ◽  
M. Sanatani
Keyword(s):  
Phase Ii ◽  
Phase Ii Study ◽  
Growth Factor Receptor ◽  
First Line ◽  
Open Label ◽  
Dry Eyes ◽  
Open Label Phase ◽  
Grade 3 ◽  
Ecog Ps

14560 Background: The oral fluoropyrimidine X (Xeloda®) has efficacy, safety and convenience benefits vs. 5-FU/LV in adjuvant / first-line CRC. E (Tarceva®) inhibits epidermal growth factor receptor (EGFR), which predicts poor prognosis. A randomized open-label phase II study was performed to establish activity of X alone vs. X + E (XE) in first-line. Methods: Pts (ECOG PS 0–2 and/or elevated LDH) with MCRC not eligible for immediate surgical metastatectomy and unwilling/unable to undergo combination chemotherapy were randomized to X (1000mg/m2/d bid d1–14 q3w) or XE (X 1000mg/m2/d bid d1–14 q3w + E 150mg/d). A third arm (E alone) was included but dropped after 13 pts, following safety committee review of progressions at first CT scan. Primary endpoint: time to progression (TTP). Results: 59 pts (median age 65y, range 46–84; 44 M, 15 F) have been accrued (X=21; XE=25; E=13). Mean time on study: 3.8 months (range 0.2–12). 9 pts are on active treatment, 21 pts on follow-up and 29 pts have died. Interim efficacy results are available for 50 pts (X n=15; XE n=22, E n=13). There were no significant differences in response rate, median TTP (4.9 vs. 9.2 months) and median overall survival (18.2 vs. 15.1 months) for X vs. XE. Grade 3 adverse events (AEs) with X were diarrhea, nausea, hand-foot syndrome (HFS), angina, dyspnea (all 5%). Corresponding rates of grade 3 AEs with XE were diarrhea (20%), fatigue (16%), stomatitis (12%), HFS (8%), vomiting (8%), dehydration (8%), thrombosis, weight loss, decreased appetite, dry eyes, headache, anxiety, abdominal pain, anorexia, hyponatremia (all 4%). The only grade 4 AEs were skin rash (4%) and subjective weakness (4%) - both XE. Conclusions: Interim results indicate that XE is at least as effective as X alone in first-line MCRC. Recruitment is continuing and further follow-up may help fully determine the potential benefits of adding E to X. [Table: see text] No significant financial relationships to disclose.

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