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Biomedical subjects

W B Fisher

Publications and source records attributed to W B Fisher.

15 recordsLinked to original sources

Methotrexate, vinblastine, doxorubicin, and cisplatin in metastatic breast cancer. A phase II trial of the Hoosier Oncology Group.

Forty-six eligible patients with metastatic breast cancer (MBC) were treated with a combination of methotrexate, vinblastine, doxorubicin, and cisplatin (M-VAC) as first-line chemotherapy. Of 44 patients evaluable for response, 28 (64%) had an objective response, including seven (16%) who had a complete response. The median duration of response was 4 months (range, 0 to 38 months), and the median survival from the time of entry was 14 months (range, less than 1 to greater than 45 months). Myelosuppression was the most common dose-limiting toxicity, with 54% of patients experiencing Grade 3 or 4 leukopenia (including 28% with granulocytopenic fever and one septic death), and cumulative Grade 3 anemia occurred in 28% of patients. Grades 3 to 4 stomatitis was observed in 18% of patients. An active, although highly toxic regimen when used as first-line therapy in MBC, M-VAC has a response rate and survival duration similar to existing, less toxic combination regimens. As such, M-VAC cannot be recommended in preference to other combination chemotherapy regimens in this clinical setting.

Adenocarcinoma

Clinical trials in cancer therapy: efforts to improve patient enrollment by community oncologists.

A prerequisite for the completion of a clinical trial is the accrual of adequate numbers of patients. It is estimated that over 90-95% of all cancer patients are now treated in their local communities by practicing oncologists and are not seen by primary investigators at teaching hospitals. One risk of this trend is decreased patient enrollment into clinical trials. The private practitioner often lacks the academic oncologist's incentives to participate in clinical research. The Hoosier Oncology Group (HOG) is composed of community medical and radiation oncologists (85%) and Indiana University faculty members (15%). In an effort to improve patient enrollment onto clinical cancer research trials, HOG has attempted to identify 1) the major obstacles to patient enrollment by community oncologists and 2) potential aids to overcome such obstacles. One hundred fourteen members were surveyed and 75 responded (66%). The major obstacles were, in descending order: time demands on both the oncologist and his staff; explaining clinical trials to patients; completing flow sheets; perceived increased cost to the patient; remembering protocols; adhering to a rigid protocol. Aids identified as potentially most helpful were, in descending order: pocket-sized synopses of protocols; computer generated, individualized prompts; the availability of a clinical trials specialist to explain the clinical trial to patients and assist in obtaining informed consent; the availability of a video tape which could be used to explain clinical trials to patients. These aids are being implemented with the attempt to systemically study their impact on patient accrual.

Clinical Trials as Topic

Phase II trial of high-dose cisplatin plus etoposide plus vinblastine in non-small-cell lung cancer. A Hoosier Oncology Group study.

Fifty-one patients with advanced non-small-cell lung cancer were treated on a Hoosier Oncology Group protocol with an aggressive, high-dose cisplatin combination chemotherapy regimen. All patients had a Karnofsky performance status of 80% or higher and had no prior chemotherapy. The drug regimen consisted of cisplatin 30 mg/m2 days one through five, etoposide 40 mg/m2 days one through five, and vinblastine 5 mg/m2 day one. Therapy was given every three weeks for a total of three courses. Forty-five patients were evaluable for response and an objective response was seen in 15 patients (33%) with only one complete responder. The median duration of response was 16.5 weeks. The median survival for the entire group was 29.0 weeks. Toxicity was moderately severe with two treatment-related deaths (4%). Despite an aggressive chemotherapy regimen in a favorable patient population, there was no obvious evidence of a major therapeutic value.

Antineoplastic Combined Chemotherapy Protocols

Etoposide and split-dose cisplatin in bronchogenic carcinoma.

The Hoosier Oncology Group (HOG) treated 13 patients with bronchogenic carcinoma with an innovative schedule of cisplatin and VP-16. Unexpected toxicity was noted, with five deaths secondary to granulocytopenia and septic shock and three episodes of renal failure. Despite early closure of this study, we conclude that this schedule of cisplatin and VP-16 results in greater toxicity than comparable dosages in a more routine schedule.

Adult

Waldenström's macroglobulinemia and autoimmune disease in a family.

We diagnosed Waldenström's macroglobulinemia in a father and three offspring. Clinical and subclinical autoimmune disorders occurred excessively in the family. The HLA haplotype A2, B8, DRw3 was detected in all patients with Waldenström's macroglobulinemia and all but one family member with autoimmune manifestations. A lod score [log odds] of 4.86 favors linkage to the HLA complex of a gene predisposing to lymphoproliferative and autoimmune disorders. Associated with this HLA haplotype were the B-cell alloantigens Ia-172 and 350, previously reported in patients with the lymphoma-prone sicca syndrome.

Adult

Metastatic cloacogenic carcinoma of the anus: sequential responses to adriamycin and cis-dichlorodiammineplatinum(II).

A case of cloacogenic carcinoma of the anus with pulmonary metastases successfully treated with adriamycin and subsequently with cis-dichlorodiammineplatinum(II) (CDP) is reviewed. Cloacogenic carcinoma of the anus is a very uncommon tumor, and this is the first report of a major response to chemotherapy alone. Adriamycin and/or CDP should be considered in the therapy of this tumor.

Aged

Burkitt's lymphoma: tumor lysis following malignant hyperthermia.

An adult patient with massive abdominal Burkitt's lymphoma developed malignant hyperthermia during exploratory laparotomy. Simultaneously, evidence of tumor lysis appeared. The lethal effect of heat on cancer cells has been amply demonstrated experimentally, and clinical trials of regional and whole-body hyperthermia in various human malignancies have appeared. Lymphomas have not been reported among those tumors studied. Burkitt's lymphoma, a rapidly growing tumor, is likely to respond to hyperthermia, and the evidence reported here should be pursued with controlled clinical trials involving induced hyperthermia in refractory malignant lymphomas.

Adult