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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 53 (1981), S. 540-542 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-7217
    Keywords: breast cancer ; chemotherapy ; combination chemo-hormonal therapy ; endocrine therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Complete remissions in patients with metastatic breast cancer using endocrine therapy or chemotherapy are infrequent. Breast tumors are known to be heterogeneous with respect to estrogen receptor status, and the low complete remission rate may be related to this biochemical heterogeneity. Based on laboratory experiments using human breast cancer cells in tissue culture, a phase II protocol was designed using tamoxifen, premarin, methotrexate, and 5-fluorouracil. Thus far, twenty-nine (29) patients have been entered into this study and twenty-five (25) are currently evaluable for response. Overall response rate was 72%, and 14 of 25 (56%) attained a complete remission. Toxicity was minimal. Median nadir white blood cell count was 5,800 and median nadir platelet count was 252,000. In summary, this combination chemo-hormonal therapy regimen is effective with a more than 50% complete remission rate and minimal toxicity.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-7217
    Keywords: mitoxantrone ; liver dysfunction ; breast cancer ; performance status ; bilirubin elevation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To determine the safety and efficacy of mitoxantrone use in hyperbilirubinemic breast cancer patients, a prospectively determined dosage schedule was evaluated in a multi-center trial. Pretreatment bilirubin prospectively defined three groups: Controls (with normal bilirubin) and two Study groups (with either moderate or severe bilirubin increase). Bilirubin determined initial mitoxantrone dose as well: bilirubin 〈 3.5 mg/dl, 14 mg/m2; and bilirubin ≥ 3.5 mg/dl, 8 mg/m2. Mitoxantrone at 14 mg/m2 was well tolerated in patients with moderate hepatic dysfunction. Patients with severe hepatic dysfunction demonstrated a mixed toxicity picture, with performance status (ECOG level 3) defining a population with limiting myelosuppression and/or early death. The survival of Study patients with severe hepatic dysfunction (median 17 days) was significantly worse than both Control (p 〈 0.01) and Study (p 〈 0.05) patients with lower bilirubin. Entry performance status (ECOG level 0–2 versus level 3) profoundly influenced survival (median survival 222 days versus 25 days, respectively, p 〈 0.0001). Objective responses were seen in patients with both normal and elevated bilirubin. Bilirubin reduction following mitoxantrone commonly occurred, representing at least an indicator of favorable prognosis. Recommendations for mitoxantrone use include: 1. Patients with moderate bilirubinemia tolerate 14 mg/m2 mitoxantrone with reasonable chance for benefit. 2. Patients with severe hepatic dysfunction and poor performance status should not be given mitoxantrone. A definitive recommendation regarding use of reduced 8 mg/m2 mitoxantrone in patients with severe hyperbilirubinemia and favorable performance status requires further study.
    Type of Medium: Electronic Resource
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