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H Furue

Publications and source records attributed to H Furue.

At least 109 records · Page 6Linked to original sources

[Phase I study of natural interferon-gamma].

We report a clinical study of toxicity and pharmacokinetics of intravenously administered natural interferon-gamma. Twenty three cases with metastatic cancer were given interferon-gamma at doses of 10 X 10(4)-400 X 10(4) IU in single injection. Another twenty three cases were administered at doses of 5 X 10(4)-50 X 10(4) IU/day every day for thirty days. Side effects associated with natural interferon-gamma administration were qualitatively similar to those previously reported for alpha, and beta interferon treatment. After intravenous injection, interferon-gamma was cleared monoexponentially with a short half-life of 120 minutes from the circulation. One case with disseminated thyroid cancer showed minor response.

Drug Evaluation↗

[Phase II study of natural interferon-gamma. Natural Interferon-gamma Cooperative Study Group].

Naturally produced interferon-gamma was evaluated in 187 cases with advanced cancer. Interferon was given by the i.v. routes in doses ranging from 1 X 10(5) IU to 2 X 10(5) IU/day daily or every other day for more than 2 months. Overall, clinical anticancer spectrum, effectiveness, toxicities, and pharmacokinetics were similar to that seen with preparations of interferon-alpha, and beta.

Drug Evaluation↗

[Quality of life in patients with advanced cancer].

Advances in cancer chemotherapy have brought about significant improvement in the overall survival expectation for many malignant diseases. However, most current clinical trials only evaluate the duration of survival, the response rate of the tumor to treatment, or simply report the obvious side effects. Quality of life study is an emerging science of particular relevance to clinical cancer. The development of valid and reliable quality of life assessment may influence the clinical trials process. Furthermore, it may be possible to compare the effects of alternative treatment on both the quality and duration of survival. Developing interest in the quality of life is reflected in the increasing number of references dealing with this problem. However, several points must be resolved before measurement of the quality of life of cancer patients can be used for these purposes, including the design of a method of measurement, evaluation of the method, etc. The selection of an appropriate scope of inquiry is also important. In this report, current views on the quality of life in patients with advanced cancer are briefly reviewed, and the attempts of our Tokyo Cancer Chemotherapy Cooperative Study Group are also introduced.

Activities of Daily Living↗

[Late effects of cancer chemotherapy].

Patients with specific types of cancer have achieved substantial prolongation of survival after successful cancer chemotherapy. Furthermore, cancer chemotherapeutic agents are being widely used as immunosuppressive drugs in patients with benign conditions. Both of these patient populations are at risk for development of late complications of treatment. Though the late effects of chemotherapy are less well defined, they are insidious in onset and not manifested clinically until damage have become overt and irreversible. Many reports on the late effects of chemotherapy demonstrate the importance of assessing not only the therapeutic results of various treatment program but also of evaluating the long-term complications of therapy in order to maximize the benefit of the treatment. Thus, skillful and judicious application of chemotherapy produces a minimum of delayed consequences.

Antineoplastic Agents↗

[Phase II study of 590-S (1-phthalidyl-5-fluorouracil) in patients with gastrointestinal cancer. Tokyo Cancer Chemotherapy Cooperative Group].

590-S is a new masked compound of 5-fluorouracil, the antimetabolic antitumor agent of the fluorinated pyrimidine group. The safe dose for the phase II study was determined during the phase I study to be 600 mg/m2/day, equivalent to 900 mg/body/day. The phase II study involving 24 institutions was performed for the treatment of gastro-intestinal cancer. A daily dose of 900 mg was given 3 times a day after meals for more than 4 weeks. The number of registered cases was 32 with stomach cancer, 17 with colo-rectal cancer and 8 with others. 4 of the 23 completed cases with stomach cancer were judged as PR, and the response rate was 19.0%. No response was found in the cases with colo-rectal cancer. Slight side effects were observed in 14 of the 44 evaluable cases. Most of these were gastro-intestinal disorders.

Administration, Oral↗

[Effect of combination immunochemotherapy with an organogermanium compound, Ge-132, and antitumor agents on C57BL/6 mice bearing Lewis lung carcinoma (3LL)].

The antitumor effect of combination immunochemotherapy with Ge-132 and antitumor agent was studied using C57BL/6 mice bearing Lewis lung carcinoma (3LL). Ge-132 was administered orally at a daily dose of 100 mg/kg. Antitumor agents were administered intraperitoneally once a week. Initially, the effect of combination immunochemotherapy with Ge-132 and 5-fluorouracil (5-FU) was studied on 3LL local tumor growth, pulmonary metastases, survival, delayed type hypersensitivity (DTH) and body weight in tumor-bearing mice, and the following results were obtained: Inhibition of tumor growth in the combined group; Enhanced anti-metastatic effect; Prolonged survival time, and; Recovery of loss of both DTH and body weight as a result of combination therapy. These antitumor effects were also obtained by adoptive transfer of Ge-132-stimulated splenocytes in 5-FU-treated mice bearing 3LL. These results therefore suggest that the effects of Ge-132 were expressed through modification of immunocytes. Furthermore, Ge-132 enhanced the antitumor activity of bleomycin as well as that of 5-FU. These facts suggested that Ge-132 is useful for antitumor combination immunochemotherapy.

Animals↗

[Sizofilan].

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Animals↗

[Host factors in cancer chemotherapy].

Cancer grows in interaction with the host, that is, a host-tumor relationship exists. Investigations of host factors in patients receiving cancer chemotherapy are important, as they reveal the conditions in which a tumor response can develop. Furthermore, reliable host factors, if present, will be useful for quantitative evaluation of the effects of treatment. We have investigated the following three categories of host factors in relation to the effects of cancer chemotherapy and/or immunotherapy. CBC, and blood chemistries (44 parameters). Tumor markers; sialic acid, RNase, lysozyme, ferritin, IAP (immunosuppressive acidic protein), elastase I, AFP, CEA, POA, CA 19-9, CA 125, etc. Immunological parameters; lymphocyte, active T cell, T cell, B cell, IgG Fc receptor-positive T cell, lymphocyte blastogenesis stimulated by PHA, or concanavalin-A, ADCC activity, interferon production in vitro induced by poly I: C, or PHA, PPD skin test, immune complex, immunoglobulin G, A, and M, OKT series 3, 4, 8, 11, 4/8 ratio, antihuman HLA-DR, Leu 11, NK cell activity, etc. From our clinical observations, there were no significant differences in the pretreatment levels of these parameters between responders and non-responders. In responders, there was a tendency for the host factors to show greater degrees of improvement following treatment than in non-responders, but none proved to be reasonably reliable parameters for evaluating therapeutic effects. On the other hand, from our clinical observations on the advanced gastric cancer cases, life span showed a close correlation with tumor regression induced by cancer chemotherapy. Because of these facts, it is only natural that the clinical effects of chemotherapy are currently determined by definite tumor regression.

Humans↗

[Phase II study of (2''R)-4'-O-tetrahydropyranyladriamycin (THP) in patients with solid tumors. Multi-Institutional Cooperative Study].

A Phase II Study of (2''R)-4'-O-tetrahydropyranyladriamycin (THP) in patients with various solid tumors was carried out by 44 cooperative study institutions. Seven hundred fifty-six patients administered the drug intravenously were entered into this study. Of these, 499 patients were evaluated for objective responses. THP was given mainly at a dose of 40 to 60 mg/body every 3 to 4 weeks or 20 to 30 mg/body once a week. Response rates were 18.8% for head and neck cancer, 13.1% for stomach cancer, 21.4% for breast cancer, 22.2% for bladder cancer, 30% for renal pelvic and urinary tract tumor, 26.8% for ovarian cancer and 24.2% for uterine cancer. Overall response rate was 15.4% including 10 complete responses and 67 partial responses. Adverse reactions were similar to those previously reported in the phase I study, including gastrointestinal toxicities and myelosuppression. Alopecia and stomatitis, which are major side effects of other anthracyclines, were rather mild. Incidence of ECG changes was 2.8% and no congestive heart failure was observed.

Adult↗

[Phase I study of human lymphoblastoid alpha-interferon on malignant tumor].

A phase I study with human lymphoblastoid alpha-interferon (IFN-alpha) was conducted in 31 patients with malignant tumors. IFN-alpha was administered by intravenous drip infusion, intramuscular injection or local injection. In each patient, the dose was increased in 6 steps from 3 X 10(6) IU/body up to 54 X 10(6) IU/body for the purpose of investigating the safety, optimal regimen, pharmacokinetics and antitumor effect. The following findings were obtained: 1) Fever as a side effect was most frequently (in about 80%) found. However, the temperature did not exceed 40 degrees C in most cases and, on the next day, spontaneously fell to normal. 2) The dose-limiting factors (DLF) may include the subjective symptoms of anorexia, general fatigue and nausea/vomiting and the objective symptom of pancytopenia. 3) The maximum tolerated dose (MTD) was estimated to be between 36 X 10(6) and 54 X 10(6) IU/body per dose. 4) As for the route of administration, the intramuscular one was considered most suitable on the basis of the plasma concentration profile of INF-alpha. It was therefore concluded that the drug may be further submitted to a phase II study which is to be conducted with due consideration of its safety.

Anorexia↗

[Phase I study of 5'-deoxy-5-fluorouridine (5'-DFUR)].

A phase I study of a new fluorinated pyrimidine compound, 5'-deoxy-5-fluorouridine (5'-DFUR), was performed in 37 patients with various malignant cancers. Starting dose was 600 mg/m2/day (900 mg/body/day) and escalated up to 3900 mg/body/day. The dose given was divided into 3 administrations a day for 5 consecutive days. Subjective symptoms were observed in cases given a dose of over 2,100 mg/body/day. Gastro-intestinal disturbances such as nausea, vomiting and anorexia were the major side effects. In the hematological and urinary examinations, no severe abnormal signs were observed. The maximum tolerated dose was considered to be 2.100 mg/body/day, and the dose-limiting factor was gastro-intestinal disturbance. 5-FU levels were determined in the serum and tumor tissues. 5'-DFUR was well absorbed. The 5-FU level in tumor tissue was very high at 2 to 3 hours post-dose and then rapidly decreased, being 0.05 microgram/g 12 hours after administration. The optimal dosage for a phase II study was suggested to be less than 2,100 mg/body/day.

Administration, Oral↗

[Clinical evaluation of schizophyllan (SPG) in advanced gastric cancer (the second report)--a randomized controlled study].

We reported previously that Schizophyllan (SPG) combined with MMC + 5-FU (MF regimen) or Tegafur (F regimen) had a significant life-prolonging effect over chemotherapeutic regimens in patients with inoperable and recurrent gastric cancer in a randomized controlled study. In the present paper, we have further investigated the effect of SPG on life-span followed-up for more than 2 years. A significant life-prolonging effect of SPG was reconfirmed in patients given either the MF regimen (154 patients) or the F regimen (213 patients). Thus, SPG combined with chemotherapeutics has proved to be useful for treating patients with inoperable and recurrent gastric cancer, resulting in a significant prolongation of life-span without serious side effects despite having no influence on tumor size.

Antineoplastic Combined Chemotherapy Protocols↗

[Phase II studies of interferon alpha-2 Sch 30500 in advanced gastrointestinal carcinoma].

Eighteen patients with advanced metastatic gastrointestinal cancer (stomach cancer 7, liver cancer 9, pancreas cancer 2) were treated with human recombinant interferon alpha-2 at doses of 3.0 X 10(6)-10.0 X 10(6) IU/body i.m. daily or every second day, 30 X 10(6) IU/body for five consecutive days every four weeks, or 30 X 10(6) IU/body once weekly. No tumor response was demonstrated in any of our cases. Among fifteen evaluable cases, nine had stabilization of evaluable disease at four weeks, but six showed progressive disease. On the other hand, fever, chills, fatigue, anorexia, nausea and vomiting were pronounced. In two cases, CNS toxicities developed. In some instances, leukopenia, thrombocytopenia, decrease of hemoglobin content and elevation of transaminase were observed. According to these findings, single use of recombinant interferon alpha-2 at the dose schedule outlined above does not seem to be of use for the treatment of advanced gastrointestinal cancer.

Adult↗

[Drug interactions with anticancer agents].

Each anticancer agent has its own pharmacologic activities. Effect of anticancer agent may be influenced by the concomitant administration of another drug. In addition, patients with advanced cancer occasionally require other medications as well. These drugs can alter both the effects and adverse reactions of anticancer agents. Therefore, much attention must be placed on the interaction with anticancer agents. This paper summarizes drug interactions between anticancer agents and other drugs. Furthermore, clinical significance of these interactions will be discussed. It is hoped that this paper will provide more attention for the study of this problem.

Allopurinol↗

[Results of phase III study of lentinan].

A follow-up survey of survivals (Oct. 1 '80 to May 1, '84) in a randomized controlled study (Aug. '79 to Sept. 30' 80) of lentinan in combination administration with chemotherapeutic agents such as 5FU + mitomycin C or tegafur on patients with advanced or recurrent gastrointestinal cancer has shown that lentinan has been effective in such cases with regard to the following facts: 1) A life span prolongation effect at the end-point has been observed with statistical significance in lentinan treated patients as was found in the phase III study. 2) Using the life table analysis method, a higher rate of survival has been observed in the lentinan treated group, especially in combination with tegafur for gastric cancer, clearly showing such high survival rates as 12.97% (P less than 0.05) at two years after, and 9.51% (P less than 0.05) and 3.81%, at three and four years after respectively, and for colorectal cancer, 9.10% and 4.55% at two years and three years after, respectively.

Adult↗

[590-S].

590-S (1-phthalidyl-5-fluorouracil) is a derivative of 5-fluorouracil and shows a several characteristics in experimental studies. That is, good absorption from the intestine, high blood levels of 5-fluorouracil, its rapid clearance, low toxicities, excellent tumor inhibition and broad anticancer spectrum, etc. From preliminary studies and phase I studies, MTD is thought to be 750-800 mg/m2 in daily administration. Mild G.I. toxicities was encountered in a few cases. However, CNS toxicities were not experienced in any of our cases.

Administration, Oral↗