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BACKGROUND Tumor hypoxia has an impact on the outcome of cancer patients treated with radiotherapy. The validity of endogenous markers such as hypoxia-inducible factor-1alpha (HIF-1alpha) and carbonic anhydrase isozyme IX (CAIX) to detect therapeutically relevant Levels of hypoxia within tumors is controversially discussed. Furthermore, the association of(More)
PURPOSE To evaluate the feasibility of hypofractionation with SIB in all settings in Germany to prepare a multicenter treatment comparison. METHODS Eligible patients had histopathologically confirmed breast cancer operated by BCS. Patients received WBI 40.0 Gy in 16 fractions of 2.5 Gy. A SIB with 0.5 Gy per fraction was administered to the tumor bed,(More)
PURPOSE A pooled analysis of three prospective trials of preoperative radiochemotherapy (RCT) for rectal cancer by using oxaliplatin and capecitabine with or without cetuximab was performed to evaluate the impact of additional cetuximab on pathologic complete response (pCR) rates and tumor regression (TRG) grades. METHODS AND MATERIALS Of 202 patients,(More)
BACKGROUND Preoperative radiochemotherapy (RCT) with 5-FU or capecitabine is the standard of care for patients with locally advanced rectal cancer (LARC). Preoperative RCT achieves pathological complete response rates (pCR) of 10-15%. We conducted a single arm phase II study to investigate the feasibility and efficacy of addition of bevacizumab and(More)
PURPOSE To evaluate the safety and activity of preoperative radiotherapy (RT) with concurrent cetuximab, capecitabine, and oxaliplatin in rectal cancer patients. PATIENTS AND METHODS A total of 60 patients with rectal cancer (T3-T4 or N+, M1 allowed) entered the trial at five investigator sites; the data from 58 patients were assessable. Cetuximab was(More)
BACKGROUND Cetuximab has shown significant clinical activity in metastatic colon cancer. However, cetuximab-containing neoadjuvant chemoradiation has not been shown to improve tumor response in locally advanced rectal cancer patients in recent phase I/II trials. We evaluated functional germline polymorphisms of genes involved in epidermal growth factor(More)
PURPOSE Phase II trials in locally advanced rectal cancer have shown that cetuximab-based neoadjuvant radiochemotherapy is feasible but without an improvement in complete pathologic response rates. Our goal was to identify patients who would benefit from cetuximab-based neoadjuvant chemoradiation measuring gene expression levels of proteins involved in(More)
PURPOSE To investigate the relationship between the hypoxia-inducible factor-(HIF-)1alpha expression in tumor tissue, tumor oxygenation and hemoglobin levels in patients with advanced cervical cancers prior to radiotherapy and the effect on clinical outcome. PATIENTS AND METHODS The investigation included 44 patients who underwent definitive radiotherapy(More)
BACKGROUND Preoperative radiochemotherapy (RCT) is a standard of care for patients with locally advanced rectal cancer (LARC; stages II and III). Results of our phase II study (BevXelOx-RT) have shown that this regimen is feasible but without a significant improvement of pathological complete response. Whether preoperatively administered bevacizumab, due to(More)
BACKGROUND This retrospective study investigated the outcome of patients with brain metastases after radiosurgery with special emphasis on prognostic impact of visible intratumoral necrosis on survival and local control. METHODS From 1998 through 2008, 149 patients with brain metastases from solid tumors were treated with stereotactic radiotherapy at(More)