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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
1993-6-30
pubmed:abstractText
We have conducted several phase I/II clinical studies in a total of 65 MDS patients utilizing recombinant human hematopoietic growth factors including GM-CSF, IL-3, and EPO. Twenty-seven patients with MDS were treated with either continuous i.v. infusion or single daily s.c. injection of rhGM-CSF at dosages from 15 micrograms/m2 to 1000 micrograms/m2. All of them exhibited white cell responses during the treatment cycles, but no sustained rise in reticulocytes or platelets was recorded. In four of the patients, all with > or = 15% blast cells in the bone marrow, the percentage of circulating blast cells increased during treatment with rhGM-CSF (at dosages of 500 micrograms/m2 and 1000 micrograms/m2, respectively), although no leukemic conversion occurred. Of 9 patients treated so far with rhIL-3 at single daily s.c. dosages of 60 micrograms/m2, all exhibited white cell responses; 8 exhibited significant improved platelet and reticulocyte counts. Nineteen further patients received rhEPO for a period of 14 weeks by s.c. (10,000 U five times weekly) or i.v. bolus administration (150-450 U/kg). None of these patients experienced an increase in white cell and platelet counts. A significant increase of the reticulocyte count was recorded in 3 patients only. Another strategy involves the recruitment of leukemic cells into the cell cycle by hematopoietic growth factors followed by treatment with cycle-specific cytostatic agents. Therefore in 10 patients administration of rhGM-CSF (250 g/m2/day x 14, s.c.) was combined with Ara-C treatment (20 mg/m2/day x 14; s.c.). Initial results of this pilot study available in 5 patients indicated that this approach may control leukemic cell proliferation and may increase number of mature myeloid cells in both bone marrow and peripheral blood. A similar approach utilizing rhIL-3 in conjunction with Ara-C is on-going.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0898-2848
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
299-311
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Clinical use of recombinant human hematopoietic growth factors (GM-CSF, IL-3, EPO) in patients with myelodysplastic syndrome.
pubmed:affiliation
Department of Hematology and Oncology, University of Freiburg, Germany.
pubmed:publicationType
Journal Article, Clinical Trial, Controlled Clinical Trial, Clinical Trial, Phase II, Clinical Trial, Phase I