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Query: UMLS:C0376358 (prostate cancer)
 59,338 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effect of local hyperthermia on the prostate using 13.56 MHz radio frequency wave (RF wave) was reported. Firstly, temperature and blood flow of the prostate in normal dogs were measured during local hyperthermia. In most part of the prostate, the temperature reached over 42 degrees C, which was considered as favorable for the hyperthermia therapy. Blood flow of the prostatic tissue rose more slowly than that of muscle tissue. Secondly, the tissue concentration of anticancer agents after local hyperthermia was measured. There was a tendency that drug concentration in the prostate tissue after local hyperthermia was higher than that without local hyperthermia. Histological findings showed interstitial edema and congestion. As a clinical trial, 14 cases of prostatic cancer were treated with local hyperthermia after the administration of anticancer agents. Seven of them were fresh cases and the others were relapsed cases. After treatment, tumor size was reduced in 13 cases. According to "The Response Criteria for Urologic Tumor", one Complete Response, 3 Partial Response and 10 No Change cases were obtained. There was no tumor progression. As for side effects, bone marrow suppression, loss of appetite, diarrhea and skin burns were noted. However, these side effects were mild, and did not interrupt the treatment. Local hyperthermia of the prostate after systemic chemotherapy could be carried out safely and effectively in patients with prostatic cancer.
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PMID:[Basic and clinical studies of local hyperthermia for prostatic cancer]. 137 54

Phase 2 study of 5'-DFUR in bladder and prostatic cancer was conducted at 15 collaborative institutions including Okayama University. 5'-DFUR was orally administered to patients at a daily dose of 800-1200 mg for more than 4 weeks. Forty-one patients with bladder cancer and 12 patients with prostatic cancer were evaluated. The response rate for bladder cancer was 31.7% (CR, 1 case: PR, 12 cases), against no response with prostatic cancer. Moreover, the concentration of 5-FU in bladder tumors was confirmed to be high. Adverse reactions such as diarrhea, anorexia, and nausea were observed. Thus, 5'-DFUR seems to be useful for the treatment of bladder cancer.
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PMID:[Phase II study of 5'-DFUR treatment of the bladder and prostatic cancer]. 183 24

With estramustine phosphate the clinician has the possibility to ensure complete hormonal as well as cytotoxic control of advanced prostate cancer with a single drug. EMP is considered as a first choice for treatment of hormone refractory prostate cancer. It is at least as effective as conventional chemotherapy, yet less aggressive with regard to its toxicity profile. EMP is particularly useful in patients with limited bone marrow reserve, e.g. in case of prior or associated radiotherapy. As to the use of EMP in primary treatment, more information is required before we can define with certainty subgroups of patients who would benefit more from an early course of EMP than from other hormonal therapy. The existing data point in the direction of poorly differentiated tumors, patients with bone pain and poor prognosis. EMP treatment is associated with an increased risk of cardiovascular morbidity. This should be avoided as much as possible by proper selection of patients or by prophylaxis. Gastro-intestinal side effects, such as nausea, diarrhea and anorexia are dose-dependent. These adverse events tend to interfere with compliance at dosages over 560 mg/day. Dosage modifications or an anti-emetic may help. The intravenous administration of EMP offers the possibility for high loading doses at a substantially reduced risk for cardiovascular and gastrointestinal side effects.
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PMID:The present role of estramustine phosphate in advanced prostate cancer. 192 66

Ten patients with relapsed and hormone-resistant prostate cancer were given intra-arterial infusion with, mainly, cisplatin using the reservoir system. The tip of the indwelling infusion catheter was inserted from the femoral artery into the internal iliac artery or common iliac artery. The opposite end of the infusion catheter was connected to a reservoir implanted subcutaneously at the thigh portion. Combination chemotherapy using methotrexate, adriamycin and cisplatin (MAC therapy) was mainly performed. According to criteria of the Jpn. Assoc. for Cancer Ther., the response rate was 23%, including 3 or PR cases. Regarding the survival rate, the 1-year survival rate was 66.7% and the 2-year rate was 33.3%. Concerning adverse reactions, nausea, vomiting and anorexia were noted in all cases. Stomatitis, leukopenia and thrombocytopenia were also found in 38%. We consider that the IA-MAC therapy is one of the most useful regimen for the treatment of the relapsed and/or hormone-resistant prostate cancer.
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PMID:[Intra-arterial chemotherapy of relapsed and hormone-resistant prostate cancer using reservoir system]. 238 65

Continuous subcutaneous infusion of peplomycin was performed on 17 patients with metastatic prostate carcinoma, 9 of whom were refractory to conventional hormone therapy. Peplomycin was administered 5 mg daily through a newly-developed "microinfusion pump" for 14 consecutive days. This therapy was discontinued in 3 patients at the cumulative dose of 35, 35 and 55 mg. The mean cumulative dose was 84.7 mg. One patient who received 140 mg of peplomycin developed pulmonary fibrosis which was so mild that he recovered soon after the conservative therapy was instituted. There were no other episodes of pulmonary toxicities. Other major toxicities observed were anorexia (47%) and fever (41%). Of 15 patients who were evaluable with the response criteria of NPCP, 4 patients achieved objective partial regression (two for pulmonary metastases, one for bone metastases and the other for supraclavicular lymphnode metastases) and the other 11 patients remained stable. No progression of the disease was noted. Continuous subcutaneous infusion of peplomycin is advantageous over the bolus injection for increasing its anti-tumor activity as well as for decreasing its pneumotoxicity. It can also be performed for out-patients without difficulty. We believe this therapy should be incorporated in the multidisciplinary therapy of prostatic cancer.
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PMID:[Continuous subcutaneous infusion of peplomycin for advanced prostatic cancer patients]. 241 47

The use of megestrol acetate in treatment of malignancy (endometrial carcinoma, ovarian cancer, prostate cancer, breast cancer, renal cell carcinoma, malignant melanoma), endometrial hyperplasia, benign prostatic hypertrophy, contraception, anorexia, cachexia and weight loss is reviewed, concluding with a toxicity profile. Megestrol acetate was introduced in 1971 for treatment of endometrial carcinoma. Megestrol acetate is probably effective in proportion to the number of cytoplasmic progesterone receptors, but it has not been tested in a Phase III trial. For ovarian cancer it has been reported to be effective in 1 trail at doses of 800 mg/day. Prostate cancer, although difficult to assess, responds to megestrol acetate at doses of 120 mg/day because of its suppression of gonadotropins, its inhibition of 5alpha-reductase and its binding to the dihydrotestosterone receptor. Megestrol acetate permits a lower dose of diethylstilbestrol, and thus lower toxicity. There is apparently a dose-response between megestrol acetate and breast cancer, along with a response dependent on the number and type of estrogen and progestin receptors. Responses are better in postmenopausal women, and additive with other agents such as tamoxifen and mitomycin C. The medium duration of effect is 6-8 months. It has no effect on renal cancer or malignant melanoma. Megestrol acetate can be considered as an effective medical alternative to surgery for endometrial hyperplasia or benign prostatic hypertrophy. As a contraceptive in inhibits sperm transport rather than ovulation, but also causes irregular bleeding. Megestrol acetate has few side effects, and has the advantage of stimulating appetite and weight gain, a benefit in cancer patients.
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PMID:Megestrol acetate: clinical experience. 247 90

We treated 16 patients who had hormone refractory metastatic prostate cancer with 400 mg. ketoconazole orally every 8 hours. None of the patients had an objective response, although 6 (37.5 per cent) had stable disease (2 of whom had a subjective decrease in bone pain). The median duration of stable disease was 6.8 months (range 2 to 12 months) and side effects were seen in 14 patients. Nausea, vomiting or anorexia was noted in 10 patients, rash and pruritus in 2, transient abnormal liver function tests in 1 and transient pulmonary infiltrates in 1. Nine prior studies investigating the use of ketoconazole in hormone refractory metastatic prostate cancer were reviewed. Only 1 complete response was reported. A partial response was noted in 14 per cent of the patients. Most of the patients had stable or progressive disease. High dose ketoconazole as a single agent appears to have limited use in patients who have failed prior systemic therapy.
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PMID:High dose ketoconazole for the treatment of hormone refractory metastatic prostate carcinoma: 16 cases and review of the literature. 265 29

The epidemiology, histopathology, diagnosis and staging, and treatment of prostate cancer are reviewed. Prostate cancer, one of the most common malignancies occurring in men over age 50, will strike an estimated 103,000 men in the United States in 1989. More than 95% of prostatic tumors are adenocarcinomas. Tumors are graded on the basis of their degree of differentiation. Most afflicted men initially complain of difficulty in starting the urinary stream and of urinary bleeding, dribbling, and retention. Urinary obstruction may be present in advanced disease, and anemia, anorexia, and bone pain are common in metastatic disease. Prostatectomy and irradiation are used to treat disease localized to the prostate; the prognosis for such patients is good. Survival is diminished in cases of locally advanced and metastatic disease. Symptomatic metastatic disease is treated by hormonal manipulation through orchiectomy and administration of exogenous estrogens (diethylstilbestrol), luteinizing hormone-releasing hormone analogs (leuprolide and goserelin), and antiandrogens (cyproterone acetate, flutamide, and others). Some 70-80% of patients respond to hormonal therapy for periods of up to three years. After relapse occurs, salvage hormonal therapies (aminoglutethimide and ketoconazole) may be attempted to prolong survival. Fluorouracil, doxorubicin, mitomycin, cisplatin, cyclophosphamide, methotrexate, and estramustine have also been administered, with mixed results. Once relapse occurs in prostate cancer patients after initial hormonal therapy, the response to salvage hormonal or cytotoxic therapy is minimal; in the future, total androgen blockade and methods of decreasing drug resistance may be used to prolong survival.
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PMID:Treatment of prostate cancer. 266 30

Eight-MHz radiofrequency hyperthermia (H) using a Thermotron-RF Model 8, and its combination with irradiation (RH), anticancer drugs (CH) or anticancer drugs plus irradiation (CRH), were carried out for a total of 48 urological malignancies: 10 cases of renal cancer, 1 of renal pelvic cancer, 2 of ureteral cancer, 19 of bladder cancer, 5 of prostatic cancer, 9 of metastatic lesion of urological cancers and 2 of other urological cancers. All had failed in previous treatments, or had not undergone surgery because of their poor general condition. Four cases, including 2 of bladder cancer, 1 of prostatic cancer and 1 of metastatic lesion of bladder cancer, were treated with H. Twenty-five cases, including 3 renal cancer cases, were treated with RH. Seven of the 10 cases of renal cancer were treated with mitomycin C-microcapsule embolization prior to RH (CRH). Twelve of the 23 cases with urothelial cancer or its metastasis, including 1 of renal pelvic cancer, 10 of bladder cancer and 1 of metastatic lesion of bladder cancer, received combined treatment of THP-adriamycin, one of the derivatives of adriamycin, by i.v. and RF-heating (CH). Hyperthermia was given twice a week, totalling 10 sessions in 5 weeks. Intratumoral temperature was kept above 42.5 degrees C for 30 to 40 minutes during one-hour heating. Complete tumor disappearance was obtained in the 5 bladder cancer cases. Partial tumor regression, defined as a regression of 50% or more, was obtained in 11 cases. As side effects, mild skin burns and anorexia were observed in approximately 30 to 40% of cases. Seven obese cases, who had subcutaneous tissue 15 mm thick or more, developed fat tissue induration after treatment.
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PMID:[Eight-MHz RF-hyperthermia for advanced urological malignancies]. 372 58

A co-operative phase II study of the semisynthetic podophyllotoxin derivative Etoposide (VP-16) was undertaken in patients with genitourinary tumors. A total of 83 out of 115 patients entered into the study were evaluable for response. Antitumor effects were evaluated according to "Standards for the Evaluation of Direct Effects of Chemotherapy in Solid Tumors" (otherwise known as the Koyama-Saito Group Criteria). Objective response was noted in 2 patients (6.3%) out of 32 with testicular cancer, whereas no responders were seen in bladder and renal cancer patients. In patients with prostatic cancer, 1 out of 13 (7.7%) responded. Major clinical side effects were alopecia and gastrointestinal toxicities (anorexia, nausea and vomiting). Mucositis, abdominal pain, diarrhea and general fatigue were also noted. Anomalies in laboratory test findings were mainly myelosuppression-related, with leukopenia being observed in 66.3% of patients.
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PMID:[Phase II study of etoposide (VP-16-213) in genitourinary tumors. VP-16-213 Genitourinary Study Group]. 375 24


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