Search results for " Color"
showing 10 items of 770 documents
Metronomic therapy irinotecan (IRI) capecitabine (CAP) plus bevacizumab (BEV) in treatment of advanced colorectal cancer (ACRC) in very elderly peopl…
2010
Background: ACRC is one of most common neoplastic disease in very old pts. The administration of oral fluoropyrimidine (capecitabine-CAP) in a standard schedule of 1,200 mg/sqm twice a day for 14 d shows similar effects to 5-FU continuous infusion (C.I.). Furthermore, CAP- IRI showed super -additive antitumor activity. Recently many study show the safety and efficacy of a "flat dose" administration of CAP particularly in the treatment of elderly people with cancer. Also, the efficacy of BEV is well demonstrated in CRC pts. Aim of the study is to evaluate impact of bevacizumab (BEV) in combination with IRI and XEL in ACRC very old patients. Methods: 42 (20 f-22 m) elderly patients with advan…
Serial circulating tumor DNA analysis to assess recurrence risk, benefit of adjuvant therapy, growth rate and early relapse detection in stage III co…
2021
3540 Background: Challenges in the postoperative management of stage III colorectal cancer include: 1) selection of high-risk patients for adjuvant chemotherapy (ACT), 2) lack of markers to assess ACT efficacy, 3) assessment of recurrence risk after ACT, and 4) lack of markers to guide treatment decisions for high-risk patients e.g. additional therapy or intensified surveillance. Circulating tumor DNA (ctDNA) is a promising marker with potential to mitigate the challenges. Here we used serial ctDNA measurements to assess the correlation between recurrence and ctDNA detection: postoperative, during and after ACT, and during surveillance; and to assess growth rates of metachronous metastases…
Adenocarcinoma colorrectal: factores pronósticos de supervivencia en el tratamiento adyuvante con 5-Fluorouracilo-Levamisol (5FU-Lev)
2004
PROPÓSITO: Valoración de la supervivencia global (SG) y libre de enfermedad (SLE) a 5 años y estudio de los factores pronósticos de los pacientes operados, con finalidad curativa, de adenocarcinoma colorrectal estadios II y III, que recibieron tratamiento adyuvante con 5FU-LEV. MATERIAL Y MÉTODOS: ciento veintiséis pacientes tratados con esquema 5FU-LEV durante 12 meses, entre septiembre de 1990 y noviembre de 1997. RESULTADOS: La SG a los 5 años es de 68.3% y la SLE de 54%. El número de ganglios afectos por el tumor y la afectación vásculo-linfática y perineural, han resultado factores pronósticos significativos tanto en la SLE como en SG a los 5 años. La existencia de obstrucción intestin…
Cetuximab plus FOLFOX-4 in untreated patients with advanced colorectal cancer: a Gruppo Oncologico dell'Italia Meridionale Multicenter phase II study.
2010
<i>Objectives:</i> FOLFOX-4 and FOLFIRI are considered equivalent in terms of activity and efficacy as first-line chemotherapy in metastatic colorectal cancer (mCRC). The monoclonal antibody (mAb) cetuximab showed intrinsic activity as a single agent in mCRC and was approved in combination with CPT-11 for patients who failed previous CPT-11-based treatment. The purpose of this phase II study was to evaluate the activity and safety of FOLFOX-4 plus cetuximab in untreated mCRC patients. <i>Methods:</i> Untreated patients with measurable metastatic disease and expressing epidermal growth factor receptor (EGFR) received cetuximab at a loading dose of 400 mg/m<sup>2…
Efficacy and safety of irinotecan-based chemotherapy for advanced colorectal cancer outside clinical trials: an observational study.
2010
Background: This prospective observational study in typical community-based outpatient clinics evaluated the efficacy and toxicity of weekly and biweekly irinotecan-based chemotherapies and their compatibility depending on age. Methods: 601 patients with advanced or metastatic colorectal cancer receiving first-, second-, or third-line irinotecanbased therapy were regularly analyzed for response and toxicity until the end of therapy. Results: The median age was 65 (28–87) years, approximately one-third of the patients were ≥70 years old. Of all patients, 405 were treated weekly and 68 biweekly. Median overall survival (OS) for first-line therapy was 26.5 months for the <70-year-old patients …
Cetuximab rechallenge in metastatic colorectal cancer patients: how to come away from acquired resistance?
2012
Background: Scientific data provide the evidence that secondary K-RAS mutations do not occur during anti-epidermal growth factor receptor therapy in colorectal cancer patients. This multicenter phase II prospective study aims to investigate the activity of a retreatment with a cetuximab-based therapy. Patients and methods: We enrolled 39 irinotecan-refractory patients who had a clinical benefit after a line of cetuximab- plus irinotecan-based therapy and then a progression of disease for which underwent a new line chemotherapy and finally, after a clear new progression of disease, were retreated with the same cetuximab- plus irinotecan-based therapy. Results: Median number of therapeutic li…
PML as a potential predictive factor of oxaliplatin/fluoropyrimidine-based first line chemotherapy efficacy in colorectal cancer patients
2012
PML regulates a wide range of pathways involved in tumorigenesis, such as apoptosis, which is also one of the main mechanisms through which oxaliplatin and fluoropyrimidine exert their antineoplastic activity. The present study aims to investigate PML expression as a predictive factor of oxaliplatin/fluoropyrimidine therapy efficacy. Seventy-four metastatic colorectal cancer patients who received oxaliplatin/floropyrimidine-based first line therapy have been included in this retrospective study. PML expression was assessed by immunohistochemistry. PML down-regulation was detected in 39 (52.7%) patients (14 complete and 25 partial PML loss). RR was significantly lower (25.6%) in patients wit…
Role of Densitometric Criteria in Evaluation of Effectiveness of Antiangiogenic Therapies in Metastatic Colorectal Cancer: An Italian Clinical Experi…
2017
Background/Aim: To evaluate the role of densitometric criterion using the Choi Criteria in the assessment of the response to antiangiogenic treatments of metastatic colorectal cancer (mCRC) compared to the RECIST criteria. Patients and Methods: Fifty-four patients (mean age=50.6 years ) affected by advanced colorectal cancer and with hepatic and possibly peritoneal and pulmonary metastases, that can be treated with bevacizumab, were prospectively evaluated by computerized tomography (CT) scan. Metastases were also evaluated by CT in onedimensional form according to RECIST. Results: Results show that in 58% of analyzed cases, stable disease according to RECIST coincided with stable disease a…
Blood flow and oxygenation status of human tumors. Clinical investigations.
1999
There is a large body of evidence suggesting that blood flow and oxygenation of human tumors are important research topics which may explain, in particular, resistance to radiation and to many antineoplastic drugs, which can limit the curability of solid tumors by radiotherapy and chemotherapy.This manuscript reviews the clinical investigations which have been performed regarding blood flow and oxygenation status of human tumors in radiation oncology.The possible uses and limitations of the prognostic significance and the changes under therapy measuring blood flow and oxygenation in human tumors were discussed. In addition, several approaches were summarized, which can improve the microvasc…
Biomarkers and efficacy: Are we nearly there yet?
2011
EDITORIAL