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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-5-13
pubmed:abstractText
We designed a phase II study to assess the activity of recombinant interleukin-2 (rIL-2) in patients with chronic myelogenous leukemia (CML). Study population included 11 patients in the chronic phase of CML (6 in hematologic remission and 5 with active disease), 6 patients in the accelerated phase, and 4 in blastic phase of CML. Patients received three 5-day cycles administrated every other week. rIL-2 was given as intravenous bolus infusions of 8 x 10(6) IU/m2 three times a day during cycle 1 and twice a day during cycles 2 and 3. Response to rIL-2 was assessed on day 45. No hematologic response was achieved in the patients with evaluable disease. One patient in hematologic remission with rIL-2 achieved a major response (from 72% to 9% Ph+ metaphases), and two patients had some degree of reduction of Ph+ metaphases. Responses were short-lived (< 6 months), but two of these three patients achieved a new cytogenetic response with interferon given post-rIL-2. A significant immune activation was achieved with rIL-2 including a marked increase in CD3+/CD25+ cells, CD56+ cells, and in natural killer/lymphokine activated killer cell cytotoxic activity. These results confirm preclinical studies, which showed that IL-2 has antileukemic activity in CML. However, the responses observed were short lived and restricted to a subgroup of patients with low disease burden. This invites further studies testing its impact in situations of minimal disease or in combination with other cytokines.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1524-9557
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
175-81
pubmed:dateRevised
2008-3-18
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Treatment of chronic myelogenous leukemia with interleukin-2: a phase II study in 21 patients.
pubmed:affiliation
Institut Paoli-Calmettes and INSERM Unit 119, Marseille, France.
pubmed:publicationType
Journal Article, Clinical Trial, Clinical Trial, Phase II