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C Doberauer

Publications and source records attributed to C Doberauer.

22 records · Page 2Linked to original sources

[Effectiveness of gamma interferon and alpha interferon in hairy cell leukemia].

Six patients with hairy-cell leukemia were treated with gamma-(IFN-gamma) and alpha-(IFN-alpha-2b) interferon; 3-35 months following splenectomy, treatment was started with 4 X 10(6) U/m2 IFN-gamma sc (iv) every second day for 9-35 weeks. Although the white blood cell counts decreased during therapy from 4.1-49 X 10(9)/l to 1.5-43 X 10(9)/l, no hematological or clinical improvement was obtained. Subsequently (interval 0-13 weeks), IFN-alpha-2b was given at an initial dose of 4 X 10(6) U/m2 sc every second day to all patients. After a treatment period corresponding to that of IFN-gamma administration, a significant hematological improvement was observed in five patients (one early death due to pulmonary embolism). At the last follow-up (9-14 months after start of treatment; maintenance therapy, 1 X 10(6) U every second day), these patients exhibited normal peripheral blood cell counts, and in bone marrow biopsy specimens a marked decrease of hairy cells was seen (1 CR, 3 PR, 1 MR). Adverse reactions including fever, headache, nausea, dryness of the mouth, myalgia, and fatigue did not significantly differ between the two interferon preparations. Whereas IFN-gamma is unlikely to have any significant impact on the course of hairy cell leukemia, IFN-alpha-2b does result in improvement of hematological values and well-being in almost all patients.

Adult↗

[Treatment of metastasized carcinoid tumor of the ileum and cecum with recombinant alpha-2b interferon].

Seven patients with progressive ileal or caecal carcinoid tumors and liver metastases were treated with human recombinant alpha-interferon (IFN alfa-2b) at a dosage of 2-4 x 10(6) U daily or every other day subcutaneously. Six patients had symptoms of the carcinoid syndrome. No change of tumor size lasting 4 to 40+ months (median, 18 months) was noted in 6 patients, and 1 patient had hepatic tumor progression. A decrease in urinary excretion of 5-hydroxyindoleacetic acid by more than 50% lasting 2-11 months (median, 4) was observed in 5 patients. Four patients were completely or partially relieved of flushing, diarrhea, obstruction or abdominal pain. The side-effects were negligible with the exception of mild fever, headache and confusion only during the first days of therapy. Treatment with IFN alfa-2b offers good palliation to patients with disseminated ileal or caecal carcinoid tumor and carcinoid syndrome.

Adult↗

[alpha 2-interferon: preliminary treatment results in chronic myeloid leukemia].

Interferon (IFN-alpha 2 B) was administered to 21 patients with chronic myeloid leukaemia (CML), at an initial dose of 4 X 10(6) IU/m2 daily subcutaneously, adapted to changes in leukocyte count in the course of treatment. Of 16 patients that could be fully evaluated (12 males, 4 females; aged 21-64 years), 15 were in the chronic phase, one had a blast crisis. "Haematological remission" was achieved in nine of the 16 patients, while in the remainder, with one exception, transitory reduction in leukocyte count was obtained. With pretreatment counts of 18-151 X 10(9)/l, normalization to 2.7-6.9 X 10(9)/l was achieved in 13 patients after 3-40 weeks. In parallel to these effects there was a decrease in platelet count (before treatment 86-1550 X 10(9)/l to 30-279 X 10(9)/l after an average of six weeks) and in lactate dehydrogenase (initially 220-958 U/l to 87-232 U/l after 3-33 weeks). A reduction in Philadelphia chromosome-positive metaphases by as much as 50% was observed in four of eight patients. Administration of IFN-alpha 2 B achieved a relatively rapid cell reduction in the chronic phase of CML. The long-term effect on the course of the disease and the place of IFN in the overall concept of CML treatment remains unanswered.

Adult↗