Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024623 (gastric cancer)
 36,219 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We reported 2 patients treated with Methotrexate (MTX)-Fluorouracil (5-FU) sequential therapy combined with Doxifluridine (5'-DFUR). The method of administration was as follows: MTX 60 mg was given intravenously (iv) followed by 5-FU 600 mg iv 2 hours later in colon cancer and 5 hours later in gastric cancer. Leucovorin 20 mg was administered 3 times every 6 hours beginning 6 hours after 5-FU infusion. This cycle was repeated once a week for 5 weeks. 5'-DFUR 1,200 mg was given orally daily and continued after MTX.5-FU therapy. Patient 1 was a 60-yr-old female with recurrent colon cancer developed four years after sigmoidectomy. She was referred to our hospital for further examinations of elevated serum carcinoembryonic antigen (CEA). The enlarged intraabdominal lymph nodes due to recurrence were demonstrated on computer tomography and the chemotherapy was performed as described above. The swelling of lymph nodes showed marked reduction in size and CEA value was normalized. Patient 2 was a 59-yr-old man with advanced gastric cancer accompanied by giant liver metastasis. Both primary and metastatic lesion responded favorably to this regimen. There was no remarkable side effect in either patient. These results suggest that this method is worth performing in further clinical trials for cancer patients.
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PMID:[Two cases of gastrointestinal cancers with major responses to sequential methotrexate 5-FU plus 5'-DFUR]. 252 5

Immunochemotherapy using the antitumor polysaccharide Sizofiran (SPG), an extract from the culture broth of Schizophyllum, was prescribed randomly for unresectable or resectable gastric cancer patients. In case of unresectable cases, the SPG group (treated by SPG plus tegafur--F method--or 5-FU combined with MMC--MF method--) survived longer (p = 0.009 in the MF method and p = 0.003 in the F method) than did the control group (chemotherapy only). Concerning a treatment regimen for resectable cases, all patients were given 0.4mg/kg and 0.2mg/kg of MMC on the day of surgery and the next day, respectively. Oral tegafur was initiated on the 14th postoperative day and was continued as long as possible. In the SPG group, SPG was administered intramuscularly 40mg/week concurrently with the start of oral tegafur and was continued as long as possible. Although the overall survival rates for 5 years did not differ between both groups, the 5-year survival rate for stage III in the SPG group was superior to the findings for stage III in the control (p = 0.0105).
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PMID:[Clinical efficacies of schizophyllan (SPG) on advanced gastric cancer]. 253 Dec 70

The survival curves of MGc80-3 cells exposed for 24 hr to various concentrations of 10 anticancer drugs were obtained by means of colony-forming assay. Comparison of drug doses required to reduce cell survival by 90% (ID90) with the clinically achievable peak plasma drug concentration (PPC) showed that MMC, ADM, and 5-Fu had strong cytotoxicity (PPC/ID90 = 18-36), whilst the other drugs were less effective (PPC/ID90 less than or equal to 11). The fact that MMC, ADM, and 5-Fu are most effective in the treatment of gastric cancer suggests that the cell line MGc 80-3 may still retain its original drug sensitivity which is consistent with that noted in clinical gastric cancer. This cell line could be useful in screening for new compounds with activity against this disease.
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PMID:[Chemosensitivity of MGc 80-3 human gastric adenocarcinoma cells and its clinical significance]. 255 35

Three hundred five patients with advanced pancreatic and gastric carcinoma were randomly assigned to treatment with fluorouracil, fluorouracil plus doxorubicin (Adriamycin) (FA), or fluorouracil plus doxorubicin plus mitomycin (mitomycin C) (FAM). All regimens were equivalent with regard to patient survival. There is no reasonable likelihood that either the FA or FAM regimen could produce a meaningful survival advantage over fluorouracil alone. Interval to disease progression, objective response rates, and palliative effects (improved performance, body weight, or symptoms) were essentially equivalent among the three regimens. With regard to toxicity, the FAM regimen produced more anorexia, nausea, vomiting, leukopenia, thrombocytopenia, and cumulative bone marrow suppression. Fluorouracil alone produced more stomatitis and diarrhea. Because of a failure to produce improved survival or palliation, unrewarded toxicity, and excessive cost, neither the FA nor FAM regimen can be recommended for the treatment of advanced pancreatic or gastric cancer.
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PMID:A comparison of three chemotherapeutic regimens in the treatment of advanced pancreatic and gastric carcinoma. Fluorouracil vs fluorouracil and doxorubicin vs fluorouracil, doxorubicin, and mitomycin. 257 57

High response rates to combination chemotherapy reported by the end of the seventies led many oncologists to recommend standard treatment for gastric cancer. In randomized trials conducted by different groups, the response rate with fluorouracil (F), adriamycin (A), mitomycin C (M) ranged between 17 and 39% and was advocated for adjuvant treatment. However, further studies indicate that combination chemotherapy has no beneficial effect on survival compared with 5-FU alone. Several studies assessing the FAM regimen versus control in the adjuvant setting show, so far, no difference between the treatment arms. Other agents and combinations have recently been investigated. Cisplatin (P) is active in gastric cancer. In six studies using a combination with FA (FAP), the response rate ranged between 29 and 55% with a median survival of 4-12 months. Other combinations using P with F or etoposide and A have also been promising. Recently, the EORTC Gastrointestinal Group, using a combination of sequence of high dose methotrexate and F with A (FAMTX) reported 22 positive responses out of 66 eligible patients, including nine complete responders. These new treatments are currently being tested by different groups in a randomized trial. For the time being, apart from 5-FU alone, chemotherapy in advanced gastric cancer should not be administered on a routine basis outside clinical trials.
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PMID:Current status of chemotherapy for gastric cancer. 264 33

One hundred and fifteen patients with curative and palliative surgery for gastric cancer were randomized to receive radiotherapy alone (1) or in combination with short-term (ST) 5-FU (2), long-term (LT) 5-FU (3), ST and LT 5-FU (4). The ST 5-FU was given at a daily dose of 575 mg/m2, every 4-6 h during the first 4 days of treatment before starting irradiation. The LT 5-FU was given at a dosage of 750 mg/m2 every 2 weeks for 18 months or until progression. The median survival times for treatment 1 to 4 was respectively 12, 10, 15 and 18 months. There was a statistically significant overall difference between the four treatments (P = 0.041). However, when the comparisons were adjusted for the most significant prognostic factors, the difference in survival disappeared. Moreover, no difference was found between treatments in terms of time progression. Nevertheless, among 22 patients with residual tumour, the three who were still alive without disease progression (with survivals of 19+, 49+ and 90+ months at the time of this analysis) had been treated with radiotherapy combined with ST and LT 5-FU.
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PMID:Adjuvant radiotherapy and chemotherapy in resectable gastric cancer. A randomized trial of the gastro-intestinal tract cancer cooperative group of the EORTC. 268 36

Fifty-seven patients with non-resectable liver metastases (31 from colon cancer, 26 from gastric cancer) received 5-FU, ADR, MMC combined hepatic arterial infusion therapy. (FAMia: 5-FU 334 mg/m2 qw, ADR 20 mg/m2 q4w, MMC 2.7 mg/m2 q2w; in colon cancer, 5-FU 167 mg/m2/day continuously for 3 months and then 334 mg/m2 qw). Myelo-suppression, hepatic arterial occlusion, gastroduodenal toxicity and elevation of biliary enzyme were observed at 29%, 39%, 32% and 13% in colon cancer, respectively, and at 35%, 8%, 0% and 0% in gastric cancer, respectively. Response rates evaluated by CT-scan were 63% (1 CR + 18 PR/30) in colon cancer and 79% (4 CR + 15 PR/24) in gastric cancer. Overall median survival was 352 days in colon cancer and 449 days in gastric cancer. Concerning background factors, the response rate in the well-differentiated type of colon cancer was significantly higher than in the moderately differentiated type, and significantly low in poorly differentiated medullary type gastric cancer. The existence of extra-hepatic lesions was the most important factor in survival in both cancers. [colon cancer: (-) 740 days vs (+) 267 days; gastric cancer: (-) 517 days vs (+) 245 days]. In conclusion, this therapy yields favorable direct effects on liver metastases from colon and gastric cancer without major side-effects and complications, but effective therapy of extrahepatic lesions is required for longer survival. Now, to release colon cancer patients from restrictions of continuous infusion pumps, a phase I study of weekly high dose 5-FU HAI therapy is under way.
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PMID:[A 5-FU, ADR, MMC combined hepatic arterial infusion therapy in non-resectable liver metastases from colon and gastric cancer]. 278 85

Four primary liver tumors and 19 secondary ones (8 gastric, 8 colorectal, 2 esophageal and 1 gall bladder cancer) were treated by intra-arterial infusion chemotherapy intermittently using implantable reservoir. Drugs used in this series were 5-Fluorouracil, Mitomycin C, Adriamycin, and Cis-platinum. They were infused every 2 weeks for outpatients. The antitumor efficacy was evaluated in terms of tumor regression measured by CT scan. The toxicity was slight and temporary. The total response rate was 23.1%, 50% survival period was 7 months, and 1-year survival rate was 24.2%. The response rate was 33.3%, and the 50% survival period was 7 months for 8 gastric cancer patients with liver metastasis. The result was not good, and we must improve the criteria of indication and devise a regimen. But the implantable drug delivery system has made it possible to lengthen the time that patients may stay home and assure good quality of life because of the freedom of movement, normal physical appearance, protection from infection, and reduction of mental burden, due to subcutaneous placement.
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PMID:[Arterial infusion cancer chemotherapy in liver tumor using implantable reservoir]. 278 8

In a phase II trial we tried to evaluate the efficacy of a sequential combination of high-dose (HD) MTX and 5-FU combined with Adriamycin (ADM). In a pilot study we found HDMTX effective as a single agent in gastric cancer. MTX and 5-FU were combined sequentially because Cadman and Bertino had shown synergism for this combination. The treatment protocol consisted of HDMTX, 1.5 g/m2 of body surface, and HD5-FU, 1.5 g/m2. MTX was administered 1 hour prior to 5-FU. Both drugs were given as a bolus. 24 hours after MTX administration, citrovorum factor rescue was started, 15 mg/m2, q6h x 12, orally. 48 hours after MTX administration, the serum concentration of the drug was measured by HPLC. 14 days after MTX was given, ADM, 30 mg/m2, was injected as a bolus. This protocol was repeated every 28 days. Patients eligible for this treatment were required to have a creatinine clearance of greater than 60 ml/min. 116 patients with metastasized gastric cancer and a performance status between 40 and 70% were treated. The response rate was 58% (67/116 patients). 14/116 patients (12%) had complete remission. The median survival probability for all patients was 9 months, for responders 15 months, while for patients with complete response it has not been reached. The median survival for nonresponders was only 4 months. Around 10% of all patients lived longer than 6 years. The median follow-up-time was 4 years. Cytostatic treatment was relatively well tolerated. The deaths of 3 patients were drug-related. A quarter of all patients could be treated on an outpatient basis.
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PMID:Long-term results with FAMTX (5-fluorouracil, adriamycin, methotrexate) in advanced gastric cancer. 281 84

The biochemical rationale for the potentiation of the effects of 5-FU by MTX is based on an increased PRPP level or MTX polyglutamate produced by MTX. The cytotoxic action of MTX results not only from inhibition of DHFR but also depends upon thymidylate synthetase (TS), a key enzyme in DNA synthesis. We obtained a monoclonal antibody to TS using a hydrophilic peptide consisting of 20 amino acids in the TS amino acid sequence and demonstrated by PAP that TS was detectable in poorly differentiated adenocarcinoma cells but not in well differentiated adenocarcinoma cells. Upon clinical application of sequential doses of MTX and 5-FU, the median survival durations were 318 days and 156 days for scirrhous-type gastric cancer patients and non-scirrhous-type gastric cancer patients respectively. These results suggest that immunohistochemistry with TS antibody is available as an indicator of the effect of this drug regimen.
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PMID:[The role of thymidylate synthetase in sequential dose of MTX and 5-FU in the advanced scirrhous type gastric cancer]. 283 88


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