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Capecitabine and bevacizumab as first-line treatment in elderly patients with metastatic colorectal cancer.

ABSTRACT: BACKGROUND: The efficacy and safety of capecitabine and bevacizumab in elderly patients with metastatic colorectal cancer (mCRC) considered unsuitable for receiving first-line chemotherapy with an irinotecan or oxaliplatin-based combination were assessed in a phase II, open, multicentre, uncontrolled study. METHODS: Treatment consisted of capecitabine 1250 mg m(-2) (or 950 mg m(-2) for patients with a creatinine clearance of 30-50 ml min(-1)) twice daily on days 1-14 and bevacizumab (7.5 mg kg(-1)) on day 1 every 3 weeks. RESULTS: A total of 59 patients aged >or=70 years with mCRC were enrolled. In an intention-to-treat analysis, the overall response rate was 34%, with 71% of patients achieving disease control. Median progression-free survival and overall survival were 10.8 months and 18 months, respectively. In all, 32 patients (54%) had grade 3/4 adverse events (AEs), the most common being hand-foot syndrome (19%), diarrhoea (9%) and deep venous thrombosis (7%). Four patients died because of treatment-related AEs. A relationship was detected between creatinine clearance

SUBMITTER: Feliu J

PROVIDER: S-EPMC2869164 | biostudies-other | 2010 May

REPOSITORIES: biostudies-other

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Bevacizumab in combination with biweekly capecitabine and irinotecan, as first-line treatment for patients with metastatic colorectal cancer.

Project description:Combination of capecitabine and irinotecan (XELIRI regimen) is an active and well tolerated treatment for metastatic colorectal cancer (mCRC). The aim of this study was to evaluate the efficacy and safety of this regimen in combination with bevacizumab (BV), as first-line treatment for mCRC.A total of 46 consecutive patients received a combination of BV (5 mg kg⁻¹, day 1), irinotecan (175 mg m⁻², day 1) and capecitabine (1000 mg m⁻² twice daily on day 2-8), every 2 weeks. Patients were treated until disease progression or unacceptable toxicity. The primary objective was to determine the progression-free survival (PFS) and safety profile.The overall response rate (ORR) was 67.4%, with a disease control rate (ORR+stable disease) of 93.5%. Median PFS and overall survival (OS) were 12.3 months (95% confidence interval (CI): 6.5-18.1 months) and 23.7 months (95% CI: 16.7-30.6 months), respectively. The most frequent grade 3/4 treatment-related adverse events were asthenia (7%), diarrhoea (7%), nausea (9%) and vomiting (7%).Bevacizumab combined with biweekly XELIRI is a highly active first-line regimen for mCRC treatment, showing encouraging PFS, ORR and OS with a good tolerability.

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Efficacy of bevacizumab-capecitabine in combination for the first-line treatment of metastatic breast cancer.

Project description:There is an ongoing need for development of new chemotherapeutic regimens for metastatic breast cancer [mBC], especially when tumors lack therapeutic targets such as the estrogen or progesterone receptor [ER/PR], or the human epidermal growth factor receptor-2 [HER2]. Capecitabine is an orally bioavailable fluoropyrimidine approved for monotherapy in mBC, and bevacizumab is a monoclonal antibody targeting vascular endothelial growth factor which has shown to be active in mBC and tolerable in combination with other chemotherapeutics. The combination of these two agents has been explored in multiple phase II and III clinical studies, with improvements in progression-free survival and overall response rates noted as compared to capecitabine monotherapy. However, the use of bevacizumab in combination with capecitabine and other chemotherapy agents for mBC remains beset with controversy due to safety concerns, cost issues, and pending regulatory decisions.

| S-EPMC3235996 | biostudies-other

Bevacizumab-based therapies in the first-line treatment of metastatic colorectal cancer.

Project description:Since its approval for the first-line treatment of metastatic colorectal cancer (mCRC), bevacizumab has become a standard treatment option in combination with chemotherapy for patients with mCRC. Bevacizumab has demonstrated efficacy in combination with a number of different backbone chemotherapy regimens, and its widespread use has introduced several important questions regarding the selection and optimization of bevacizumab-based treatment regimens, its use in various patient populations, and the identification of associated adverse events. This review discusses the results of several phase II and phase III clinical trials, as well as large observational studies, to address the use of bevacizumab in the treatment of patients with mCRC in the first-line setting.

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Phase I/II trial of capecitabine, oxaliplatin, and irinotecan in combination with bevacizumab in first line treatment of metastatic colorectal cancer.

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Trifluridine/tipiracil plus bevacizumab as a first-line treatment for elderly patients with metastatic colorectal cancer (KSCC1602): A multicenter phase II trial.

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Bevacizumab-based first-line chemotherapy in elderly patients with metastatic colorectal cancer: an individual patient data based meta-analysis.

Project description:The aim of this meta-analysis was to evaluate efficacy and safety of first-line chemotherapy with or without a monoclonal antibody in elderly patients (? 70 years) with metastatic colorectal cancer (mCRC), since they are frequently underrepresented in clinical trials.Individual data from 10 studies were included. From a total of 3271 patients, 604 patients (18%) were ? 70 years (median 73 years, range 70-88). Of these, 335 patients were treated with a bevacizumab-based first-line regimen and 265 were treated with chemotherapy only. The median PFS was 8.2 vs. 6.5 months and the median OS was 16.7 vs. 13.0 months in patients treated with and without bevacizumab, respectively. The safety profile of bevacizumab in combination with first-line chemotherapy did not differ from published clinical trials.PubMed and Cochrane Library searches were performed on 29 April 2013 and studies published to this date were included. Authors were contacted to request progression-free survival (PFS), overall survival (OS) data, patient data on treatment regimens, age, sex and potential signs of toxicity in patients ? 70 years of age.This meta-analysis suggests that the addition of bevacizumab to standard first-line chemotherapy improves clinical outcome in elderly patients with mCRC and is well tolerated.

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Monitoring FTD in the peripheral blood mononuclear cells of elderly patients with metastatic colorectal cancer administered FTD plus bevacizumab as first-line treatment.

Project description:Trifluridine/tipiracil (FTD/TPI) is an orally administrated anticancer drug with efficacy validated for patients with metastatic colorectal cancer (mCRC) or gastric cancer. FTD, a key component of FTD/TPI, exerts antitumor effects via its incorporation into DNA. Using specific antibodies against bromodeoxyuridine, FTD incorporation into DNA is detected in tumors and peripheral blood mononuclear cells (PBMC) of patients with mCRC who are administered FTD/TPI. The proportion of FTD-positive PBMC fluctuates according to the schedule of treatment, although the association between the proportion of FTD-positive PBMC and the clinical outcomes of patients is unknown. To answer this question, here we monitored the FTD-positive PBMC of 39 elderly patients with mCRC enrolled in KSCC1602, a single-arm phase 2 trial of FTD/TPI plus bevacizumab as a first-line treatment, for 1 month, during the first cycle of treatment. The median values and interquartile ranges of the percentage of FTD-positive PBMC on days 8, 15, and 29 were 39.3% (30.7%-52.2%), 66.9% (40.0%-75.3%), and 13.5% (5.7%-26.0%), respectively. Receiver operating characteristic analysis revealed that the percentage of FTD-positive PBMC on day 8 (the end of the first week of treatment) had moderate ability to accurately diagnose the occurrence of severe neutropenia and leukopenia within 1 month (area under the curve = 0.778 [95% confidence interval, 0.554-0.993]). This result suggests that excess FTD incorporation into PBMC at the initial phase of FTD/TPI plus bevacizumab treatment is a risk factor for early onset of severe hematological adverse events.

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Tissue microRNAs as predictors of outcome in patients with metastatic colorectal cancer treated with first line Capecitabine and Oxaliplatin with or without Bevacizumab.

Project description:PURPOSE: We tested the hypothesis that expression of microRNAs (miRNAs) in cancer tissue can predict effectiveness of bevacizumab added to capecitabine and oxaliplatin (CAPEOX) in patients with metastatic colorectal cancer (mCRC). EXPERIMENTAL DESIGN: Patients with mCRC treated with first line CAPEOX and bevacizumab (CAPEOXBEV): screening (n?=?212) and validation (n?=?121) cohorts, or CAPEOX alone: control cohort (n?=?127), were identified retrospectively and archival primary tumor samples were collected. Expression of 754 miRNAs was analyzed in the screening cohort using polymerase chain reaction (PCR) arrays and expression levels were related to time to disease progression (TTP) and overall survival (OS). Significant miRNAs from the screening study were analyzed in all three cohorts using custom PCR arrays. In situ hybridization (ISH) was done for selected miRNAs. RESULTS: In the screening study, 26 miRNAs were significantly correlated with outcome in multivariate analyses. Twenty-two miRNAs were selected for further study. Higher miR-664-3p expression and lower miR-455-5p expression were predictive of improved outcome in the CAPEOXBEV cohorts and showed a significant interaction with bevacizumab effectiveness. The effects were strongest for OS. Both miRNAs showed high expression in stromal cells. Higher expression of miR-196b-5p and miR-592 predicted improved outcome regardless of bevacizumab treatment, with similar effect estimates in all three cohorts. CONCLUSIONS: We have identified potentially predictive miRNAs for bevacizumab effectiveness and additional miRNAs that could be related to chemotherapy effectiveness or prognosis in patients with mCRC. Our findings need further validation in large cohorts, preferably from completed randomized trials.

| S-EPMC4198118 | biostudies-literature

Bevacizumab treatment in the elderly patient with metastatic colorectal cancer.

Project description:Metastatic colorectal cancer (mCRC), like many cancers, is primarily a disease of elderly people. Despite this prevalence, such patients are often excluded from randomized trials or represent a minority of enrolled patients. Moreover, the criteria for establishing benefit or side effects of treatment strategies in this population are uncertain and not well recognized. Bevacizumab improves the outcome of mCRC when used in combination with standard first-line and second-line chemotherapy and beyond the first disease progression when given with a chemotherapy backbone different from that used in the precedent line. The particular toxicity profile of this antiangiogenesis agent (in particular hypertension, thromboembolic events, hemorrhage, and renal failure) may discourage its use in elderly patients with comorbidities. Data from subgroup analyses of randomized trials and the results of recent cohort studies suggest a significant benefit from the addition of bevacizumab to standard chemotherapy for elderly patients comparable with that observed in younger patients, except for the increased risk for thromboembolic events. Age alone should not be a barrier to use of bevacizumab, and further research with a more complete geriatric assessment should investigate the role of bevacizumab in elderly patients with mCRC to avoid undertreatment of this patient population due to a historical conservative approach.

| S-EPMC4289484 | biostudies-literature

First-line bevacizumab and capecitabine-oxaliplatin in elderly patients with mCRC: GEMCAD phase II BECOX study.

Project description:BackgroundSubgroup analyses of clinical studies suggest that bevacizumab plus XELOX is effective and tolerable in elderly patients with metastatic colorectal cancer (mCRC). The prospective BECOX study examined the efficacy and safety of bevacizumab plus XELOX, followed by bevacizumab plus capecitabine in elderly patients with mCRC.MethodsPatients aged ⩾70 years with Eastern Cooperative Oncology Group performance status 0 out of 1 and confirmed mCRC were included. Patients received bevacizumab 7.5 mg kg(-1) and oxaliplatin 130 mg m(-2) on day 1, plus capecitabine 1000 mg m(-2) bid orally on days 1-14 every 21 days; oxaliplatin was discontinued after 6 cycles. The primary end point was time to progression (TTP).ResultsThe intent-to-treat population comprised 68 patients (65% male, median age 76 years). Median TTP was 11.1 months; median overall survival was 20.4 months; overall response rate was 46%. Grade 3 or 4 adverse events included diarrhoea (18%) and asthenia (16%). Grade 3 or 4 adverse events of special interest for bevacizumab included deep-vein thrombosis (6%) and pulmonary embolism (4%).ConclusionsBevacizumab plus XELOX was effective and well tolerated in elderly patients in the BECOX study. The adverse-event profile was similar to previous reports; no new safety concerns were identified. Fit elderly patients with mCRC should be considered for treatment with bevacizumab plus XELOX.

| S-EPMC4102952 | biostudies-literature

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