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Biomedical subjects

S Suga

Publications and source records attributed to S Suga.

At least 325 records · Page 18Linked to original sources

[Complete response of unresectable gastric cancer (Borrmann's type III) treated with combination chemotherapy of UFT and mitomycin--a case report].

A 69-year-old male visited our hospital in December, 1983, complaining of dysphasia. X-ray and endoscopic examination of the stomach revealed Borrmann's type 3 of the cardia. A biopsy specimen revealed typical features of adenocarcinoma. Because the tumor could not be resected, chemotherapy was started in February, 1984 with a combination of UFT (600 mg/day) and mitomycin (6 mg/week). After five courses of the combination chemotherapy, UFT therapy was continued. Follow-up endoscopy in August, 1985, showed a discolored area of the cardia. A biopsy specimen revealed no evidence of carcinoma. UFT-M therapy is a useful chemotherapy for gastric cancer.

Adenocarcinoma↗

[Futraful and UFT, their metabolic characteristics].

Investigations were made in human on the metabolism of Futraful (FT) and UFT (combination of uracil and FT), both of which are anticancer agents of pyrimidine metabolism antagonist. As a result, it was demonstrated that from the metabolic view point, those drugs essentially have a tumor-selective toxicity. Next, the mechanism of the superior clinical anticancer effect of UFT, compared to FT, was investigated enzymatically, showing the inhibitory effect of uracil on the degradation of 5-fluorouracil generated from FT in the organs and tumor tissues. Discussions were also made for the further development of fluoropyrimidines.

Antineoplastic Combined Chemotherapy Protocols↗

[Clinical experience of a subcutaneously implantable drug delivery catheter (PORT-A-CATH)].

A drug delivery catheter system with subcutaneously implantable port, PORT-A-CATH, was applied for intra-arterial, intravenous and intraperitoneal chemotherapy and hyperalimentation in treating 99 cancer patients. The average implantation period was 135.1 days and this system was applied for more than one year in 5 cases. Any troubles due to port or catheter materials were not observed during the study. Catheter occlusion occurred in 11 cases infection in 7 (catheter-related infection 4, pocket infection 3), and skin necrosis in 4. This system was proved useful to reduce the risk of infection and enabled easy and safe long-term repeated administration, compared to the catheters with external end. Intra-arterial chemotherapy became possible to the outpatients with the use of this system, which seemed to contribute for the improvement of quality of life of the patients.

Antineoplastic Agents↗

[Chemotherapy of Borrmann type 4 gastric cancer].

In brief, the clinical course of patients with Borrmann type 4 gastric cancer is characterized by its marked tendency for peritoneal metastasis (P-factor). This paper dealt with the treatment of Borrmann type 4 gastric cancer from the viewpoint of the disease P-factor, and included the following topics; UFTM chemotherapy, pharmacokinetics of mitomycin C (i.v. vs i.p. use), case presentation, Port-A-catheter (implantable drug delivery system), suppression of collagen biosynthesis, prevention of the adverse effects of mitomycin C, neochemotherapy, and autopsy findings.

Adenocarcinoma, Scirrhous↗

[Phase II study of epirubicin on gastric cancer--a cooperative study of the Tokai Cancer Chemotherapy Group].

A phase II study of epirubicin, a new anthracycline derivative, was performed in 23 patients with advanced gastric cancer. Epirubicin was administered intravenously at a dose of 20-30 mg/m2/day for two or three consecutive days every two or three weeks. Sixteen cases were evaluable and there were two partial responses and one minor response. Overall response rate (more than PR) was 12.5% (2/16). Leukopenia (less than 4,000/mm3) and anemia (less than 11.0 g/dl) were observed in 71.4% and 69.2% of patients, respectively. No thrombocytopenia was observed. Other toxicities were alopecia (71.4%), nausea and vomiting (42.9%), anorexia (25.0%), stomatitis (12.5%), fatigue (12.5%), fever (6.3%) and tachycardia (6.3%), but these effects were relatively mild in most cases.

Adenocarcinoma↗

[Phase I study of bestrabucil (KM 2210)].

A phase I study was performed on a newly developed antitumor agent, Bestrabucil (KM 2210). The study was started at an initial dose of 1 n 25 mg/body, and gradually increased up to 32n 800 mg/body. With single (35 patients) and five-consecutive-day (36 patients) administration, the dose-limiting factor was found to be tarry stool, remarkable decrease in hemoglobin content, and strong nipple and breast pain. The maximum tolerated dose (MTD) was concluded to be around 700 to 800 mg/body. With long-term administration (the longest term, 20 weeks, 36 patients), the dose-limiting factor was concluded to be a decrease in the peripheral leukocyte count when the total amount administered reached about 10 g. Side effects on the alimentary system due to this agent, such as vomiting, nausea and anorexia, were observed. In addition, mastalgia and genital bleeding due to released estrogen were also seen, especially in the case of long-term administration.

Adult↗

[UFT, UFTM, and UFTM-Dpc treatment of gastric cancer].

It became increasingly evident that UFTM chemotherapy, a combination of UFT and mitomycin C is one of the most recommendable therapy for advanced gastric cancer, especially for the treatment of Borrmann type 4 gastric cancer. Objective responses were achieved in 18 out of 26 (69.2%) patients with Borrmann type 4 gastric cancer. Moreover, UFTM-Dpc treatment, a combination therapy of UFTM plus D-penicillamine (suppressor of collagen synthesis), is proposed for the treatment of Borrmann type 4 gastric cancer from the point of view of collagen synthesis inhibition. It is likely that D-penicillamine might inhibit the peritoneal metastatic involvements, which is lethal to the patients finally.

Aged↗

[UFT-therapy and UFTM therapy--comparison of survivals in the patients with Borrmann type 4 gastric cancer treated either with UFTM-chemotherapy or operation].

First, UFT therapy was designed on the basis of pharmacokinetics of UFT for the treatment of patients with gastric cancer. Then, UFTM therapy was established in combination of UFT and mitomycin C. A total of 22 patients with Borrmann type 4 gastric cancer were treated with UFTM therapy. clinical responses were observed in 15 patients out of 22, with a response rate of 68.2%. Survival time was compared between UFTM and surgical treatment in the patients with Borrmann type 4 gastric cancer. As a result, no difference was observed between the two groups in the survivals. Accordingly, it was considered that there was no evidence which supports an alternative treatment of either UFTM or operation, except for the case of far-advanced gastric cancer.

Adult↗