Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0376358 (prostate cancer)
 59,338 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The efficacy of an association of cyclophosphamide (CPM) and 5-fluorouracil was studied in 15 patients with prostate cancer not responding to oestrogen therapy, and more particularly its effect on pain due to bone metastases. No objective improvement was noted with this association, but there was a definitite reduction in bone metastases pain in 5 of the patients, with an average remission time of 4 months. Half of the patients had nausea and vomiting, but in spite of this digestive intolerance those patients who obtained pain relief for 4 months considered the treatment to be of positive value. This therapy is recommended only fater the failure of castration, anti-androgens, and oestrogens, together with nitrogen mustard (Estracyt) and corticotherapy.
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PMID:[Palliative chemotherapy with 5 FU and CPM in cancer of the prostate with bone metastases resistant to oestrogens. A clinical trial (author's transl)]. 9 8

In the 36 months since its inception, the National Prostatic Cancer Project treatment subgroup has randomly assigned over 360 patients with progressive advanced prostatic cancer who were no longer responsive to endocrine manipulation to either one of four different clinical studies. The initial study demonstrated a clear superiority for 5-fluorouracil (5-FU) and cyclophosphamide over continued conventional therapy. Beneficial responses were documented and are associated with increased survival rates and relief from pain and other symptoms. A proportionately larger number of patients obtained clinical benefit (stable and partial regression) on cyclophosphamide than on standard or 5-FU therapy. The criteria for evaluation of patients are supported by the survival data, ie, responders have survived for a longer period of time than those patients who continued in progression. Preliminary data from the subsequent protocols have documented a 30% response (stable and partial regression) in patients receiving oral estramustine phosphate and definite responses in patients treated with DTIC; Too few patients have been treated with Leo 1031 to offer total response rates at this time, although the early results are promising. These clinical studies have firmly established a place for chemotherapy in the management of prostatic cancer. New trials will introduce single- and multiple-drug chemotherapy at earlier phases of the clinical course of prostatic cancer patients.
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PMID:National randomized study of chemotherapeutic agents in advanced prostatic carcinoma: a progress report. 14 26

In this third cooperative chemotherapy trial of the National Prostatic Cancer Project 165 patients with histologically confirmed, relapsing clinical stage D prostatic cancer were randomized to receive either imidazole-carboxamide, procarbazine or cyclophosphamide. All patients had received and failed previous hormonal therapy. Patients whose disease progressed after 12 weeks on initial therapy were crossed over or randomized to receive an alternate drug. There were 129 patients available for comparison of treatments. The objective response rates (partial regression plus stable disease) were 26% for cyclophosphamide, 27% for imidazole-carboxamide and 14% for procarbazine. Subjective responses were noted in pain relief, improvement in performance status and weight gain. Procarbazine was associated with excessive toxicity, resulting in many patients (28%) discontinuing therapy within the first 3 weeks and closure of this particular arm of the study. The regimen of initial imidazole-carboxamide therapy with a later cross-over to cyclophosphamide when the disease continues to progress is associated with the longest increase in survival. Imidazole-carboxamide and cyclophosphamide appear to be active agents in advanced prostatic cancer and are worthy of continued use in this disease.
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PMID:Comparison of procarbazine, imidazole-carboxamide and cyclophosphamide in relapsing patients with advanced carcinoma of the prostate. 37 Apr 20

We studied 38 patients with prostatic cancer who received breast irradiation before oral estrogen administration. Our data are combined with those from other institutions to determine the effectiveness of pre-estrogen breast irradiation in minimizing gynecomastia and/or pain. Based on our review the incidence of estrogen-induced breast changes is 70%. Irradiation given before estrogen administration can prevent or minimize these changes in 89.3% of the treated patients. Histologic changes of gynecomastia are reviewed and recommendations for optimum radiation therapy technique are included.
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PMID:Pre-estrogen breast irradiation for patients with carcinoma of the prostate: a critical review. 42 30

Estramustine has been shown previously to be an effective drug in the treatment of metastatic prostatic cancer, demonstrating significant objective and subjective responses in long-term non-randomized trials and in other randomized trials. In this study prednimustine alone has shown a minimal over-all objective response rate of 12.9% of the cases, although with marked subjective improvement of pain relief and patient performance status. The combination of prednimustine with estramustine did not result in improvement of objective or subjective response parameters. The effects in terms of responses or in terms of toxicity for either agent were not additive when they were given in combination. Cross-over for those patients whose disease progressed on prednimustine therapy to estramustine had some benefit in over-all survival. Prednimustine alone or in combination with estramustine may be used safely and could improve markedly the quality of life for irradiated patients with advanced prostatic cancer who failed on hormonal treatment and have too poor a bone marrow reserve to be treated by other currently available myelosuppressive agents.
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PMID:The use of estramustine and prednimustine versus prednimustine alone in advanced metastatic prostatic cancer patients who have received prior irradiation. 45 47

23 patients with advanced, hormonal-resistant, prostatic cancer were treated with daily oral prednimustine--a combination of prednisolone and chlorambucil. 8 patients (35%) subjectively responded with disappearance of skeletal pain and improvement in appetite, weight and sense of well being. 3 patients had objective evidence of tumour regression. Clinical toxicity was moderate, and only occasional myelosuppression was encountered. The ease of administration and predictable toxicity of prenimustine make it a potentially useful agent, alone or in combination, for advanced prostatic cancer.
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PMID:Prednimustine therapy for advanced prostatic cancer. 63 Jan 99

Estramustine has been shown previously to be an effective drug in the treatment of metastatic prostatic cancer, demonstrating significant objective and subjective responses in long-term non-randomized trials and in other randomized trials. In this study prednimustine alone has shown a minimal over-all objective response rate of 12.9 percent of the cases, although with marked subjective improvement of pain relief and patient performance status. The combination of prednimustine with estramustine did not result in improvement of objective or subjective response parameters. The effects in terms of responses or in terms of toxicity for either agent were not additive when they were given in combination. Cross-over for those patients whose disease progressed on prednimustine therapy to estramustine had some benefit in over-all survival. Prednimustine alone or in combination with estramustine may be used safely and could improve markedly the quality of life for irradiated patients with advanced prostatic cancer who failed on hormonal treatment and have too poor a bone marrow reserve to be treated by other currently available myelosuppressive agents.
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PMID:The use of estramustine and prednimustine versus prednimustine alone in advanced metastatic prostatic cancer patients who have received prior irradiation. 75 26

Seventeen patients suffering severe pain secondary to disseminated prostate cancer were subjected to hypophysectomy. Prolonged remission of pain and increased survival duration appeared to be consequent to obtaining objective signs of tumor regression. Patients who had only subjective improvement had significantly shorter periods of remission and survival. Patients with hematocrits less than 30% and patients demonstrating evidence of liver involvement did not obtain objective remissions.
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PMID:Hypophysectomy in the treatment of disseminated prostate carcinoma. 85 49

A total of 125 patients with progressing advanced prostatic cancer were entered into a chemotherapy study comparing cyclophosphamide, 5-fluorouracil, and standard therapy. Parameters of response were studied in 110 patients who could be evaluated. Thirty-six patients (33 per cent) were considered to have an objective response, that is becoming stable (29 patients) or in partial regression (7 patients). Negative response parameters (predictors of a poor response to chemotherapy or standard theraphy leading to progress) included (1) bone marrow evidence of prostatic cancer, (2) abnormal liver scan, (3) prior radiation therapy (indirectly through increased toxicity to chemotherapy), and (4) lack of bilateral orchiectomy prior to randomization. Positive indicators (predictors of good responses) included (1) reduction of primary tumor mass, especially after administration of 5-fluorouracil or cyclophosphamide, and (2) hemoglobin values. There were more objective responders to cyclophosphamide than standard therapy whether the hemoglobin was initially normal or low. Indeterminate parameters of response included weight gain, presence of bony or soft tissue metastases, relief of pain, performance status, excretory urography, and biochemical determinations of liver and renal function.
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PMID:Chemotherapy of advanced prostatic cancer. Evaluation of response parameters. 93 81

This cooperative study was sponsored by the National Prostatic Cancer Project to determine the usefulness of serum acid phosphatase levels as a predictive indicator with regard to performance status, sites of metastases, response to treatment, and survival in patients with advanced prostatic carcinoma. The results indicate that survival was significantly shorter for those patients who had elevation of thier on-study (pretreatment) total serum acid phosphatase ler cent reduction of primary tumor mass, relief of pain, and acid phosphatase activity. No correlation could be demonstrated between serum acid phosphatase and performance status, site of metastases, and other criteria of response to therapy. It is concluded that this test as currently determined spectrophotometrically at this stage of disease and if employed alone is not sufficient to allow for total evaluation of the response of therapy. It is, however, helpful when used in correlation with the previously mentioned positive factors.
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PMID:Clinical significance of serum acid phosphatase levels in advanced prostatic carcinoma. 96 Mar 39


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