Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0677930 (primary tumor)
 20,210 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Thirteen patients with esophageal or gastroesophageal tumors with regional disease only were treated with sequential combined therapy. Weeks 1 to 6 continuous (24 hours) infusion 5-fluorouracil (5-FU) 300 mg/m2/d; weeks 6 to 10 or 12 infusional 5-FU administered concomitantly with radiation to the primary tumor site using standard fractionation with a cumulative median dose of 5000 rad; range 4400 to 6900 rad. Surgery was performed in five patients. All patients were evaluable for assessing response to the initial 5-FU infusion and 11/13 patients demonstrated tumor regression. Of 12 evaluable patients subsequently receiving combined infusional 5-FU and concomitant radiation, all 12 achieved complete clinical (10) or pathologic (two) tumor regression. Two of five patients having surgical resection had no pathologic evidence of tumor. All patients had relief of dysphagia within 1 week of initiating chemotherapy. Acute complications of therapy included stomatitis (two patients); hand-foot syndrome (two patients), and subclavian vein thrombosis (two patients). Stricture requiring periodic dilation occurred in three patients, and one patient developed a tracheoesophageal fistula at 36 months. Local control was maintained in 12/13 evaluable patients. Four of 13 patients were alive and without disease at 12 to 46 months. Nine patients died of distant metastases at 6 to 40 months. Median survival for the whole group was 16 months. Ten of the 13 patients (77%) survived for more than 1 year and 3/13 (22%) survived more than 3 years. This pilot study demonstrates the activity of 5-FU administered on an infusion schedule in both squamous and adenocarcinoma of the esophagus and the capacity to deliver infusional 5-FU throughout standard fractionation radiation. The local control and survival data may provide a basis for expanded Phase II trials, and a comparative trial against surgery alone might also be justified.
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PMID:Sequential infusional 5-fluorouracil followed by concomitant radiation for tumors of the esophagus and gastroesophageal junction. 359 64

The effects of treatment with oral capecitabine vs. bolus 5-FU, administered concurrently with preoperative radiotherapy, were compared in the treatment of locally advanced rectal cancer (LARC). One hundred and twenty-seven patients with LARC received concurrent preoperative chemoradiation using two cycles bolus 5-FU (500 mg/m2/day) plus leucovorin (LV, 20 mg/m2/day) (Group I). Another LARC group received concurrent chemoradiation using two cycles 1,650 mg/m2/day of oral capecitabine and 20 mg/m2/day of LV (Group II, 97 patients). Radiation was delivered to the primary tumor at 50.4 Gy in both groups. Definitive surgery was performed 6 weeks after the completion of chemoradiation. A pathologic complete remission was achieved in 11.4% of patients in Group I and in 22.2% of patients in Group II (p= 0.042). The down-staging rates of the primary tumor and lymph nodes were 39.0/ 68.7% in Group I and 61.1/87.5% in Group II (p=0.002/0.005). Sphincter-preserving surgery was possible in 42.1% of patients in Group I and 66.7% of those in Group II (p=0.021). Grade 3 or 4 leucopenia, diarrhea, and radiation dermatitis were statistically more prevalent in Group I than in Group II, while the opposite was true for grade 3 hand-foot syndrome. Preoperative chemoradiation using oral capecitabine was better tolerated than bolus 5-FU and was more effective in the promotion of both down-staging and sphincter preservation in patients with LARC.
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PMID:Comparison of the efficacy of oral capecitabine versus bolus 5-FU in preoperative radiotherapy of locally advanced rectal cancer. 1647 65

PURPOSE: To report our clinical experience with 25 patients receiving concurrent capecitabine and irradiation in the treatment of locally advanced or resected pancreatic cancer. METHODS AND MATERIALS: We reviewed the medical records of patients with pancreatic cancer who received treatment with capecitabine and irradiation for pancreatic cancer and received capecitabine 1200 to 1600 mg/m(2) orally twice daily Monday through Friday with concurrent radiation (5040-5400 cGy, 180 cGy, 5 days/week), followed by a 4-week rest, then 6 to 8 cycles of capecitabine alone 2000 to 2500 mg/m(2) twice daily for 14 days every 3 weeks (surgically resected), and capecitabine 2000 to 2500 mg/m(2) BID for 14 days every 3 weeks until progressive disease (unresected). RESULTS: The population consisted of 14 females and 11 males, with a median age of 64 years (range 37-80 years). Histology was adenocarcinoma in 23 patients and neuroendocrine tumor in 2 patients. One patient had resected tumor, 3 patients were resected with positive margins, 1 patient was resectable with poor performance status prohibiting resection, and 20 patients had unresected locally advanced disease. Median dose of capecitabine concurrent with radiation was 1500 mg/m(2)/day (600-1600 mg/m(2)/day) given orally in two divided doses, 5 days per week on days of treatment with radiation therapy. Patients received a median total radiation dose of 5040 cGy (4500-5040 cGy) over 6 weeks. Eleven patients were continued on capecitabine cycles after treatment with concurrent capecitabine and irradiation. The median number of cycles completed was 3, with one patient completing 8 cycles. Median survival was 14 months, with 18 patients surviving through the end of the study period. Median overall primary tumor response over the study period was -2% (-100%-100%). Five patients were taken to laparotomy after treatment based on radiographic response and two patients were successfully resected. By the end of the study period, there were 4 complete remissions, 2 partial remissions, 6 stable disease, and 13 progressive disease. Grade 3 or 4 toxicity was observed mainly with gastrointestinal symptoms including nausea, vomiting, diarrhea, and anorexia. Three patients had G3 hand-foot syndrome, 1 patient had G3 peripheral neuropathy, 1 patient had G4 gastrointestinal bleed, and 1 patient had G3 radiation enteritis. There was one death directly related to treatment secondary to uncontrolled GI bleeding. CONCLUSION: In patients with locally advanced pancreatic cancer, concurrent capecitabine and radiation had good survival response in patients and good tumor response. Toxicity of oral capecitabine was well tolerated.
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PMID:Retrospective Analysis of Capecitabine and Radiation Therapy in the Treatment of Pancreatic Cancer. 1908 4

The aim of this study was to compare the effectiveness and toxicity of neoadjuvant chemotherapy regimens, xeloda/epirubicin/cyclophosphamide (XEC) vs 5-fluorouracil/epirubicin/cyclophosphamide (FEC), followed by adjuvant chemotherapy regimens, capecitabine/taxotere (XT) vs taxotere (T), in axillary lymph node (LN)-positive early-stage breast cancer. In this randomized, Phase III trial, 137 patients with operable primary breast cancer (T2-0, N0-1) who were tested axillary LN positive through aspiration biopsy of axillary LNs were randomized (1:1) to four 3-weekly cycles of XEC or FEC. Patients underwent surgery within 4-6 weeks after the fourth cycle, followed by four adjuvant cycles of 3-weekly XT or T. The primary end point was tumor pathological complete response. Toxicity profiles were secondary objectives. In total, 131 patients had clinical and radiological evaluation of response and underwent surgery. Treatment with XEC led to an increased rate of pathological complete response in primary tumor (18% vs 6%, respectively, P=0.027) and objective remission rate (87% vs 73%, P=0.048) compared to FEC. Clinical complete response occurred in 20% and 7% for XEC and FEC, respectively. Compared to FEC, XEC was associated with more hand-foot syndrome (57% vs 11%, P<0.001) and 3/4 grade nausea/vomiting/diarrhea (30% vs 14%, P=0.034) but less phlebitis (3% vs 14%, P=0.035). XT and T adjuvant chemotherapy regimens were well tolerated: treatment-related 3/4 grade adverse events occurred in 28% and 17% of patients receiving XT and T, respectively.
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PMID:Comparison of the effectiveness and toxicity of neoadjuvant chemotherapy regimens, capecitabine/epirubicin/cyclophosphamide vs 5-fluorouracil/epirubicin/cyclophosphamide, followed by adjuvant, capecitabine/docetaxel vs docetaxel, in patients with operable breast cancer. 2735 16