Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2001-3-6
pubmed:abstractText
The Dana-Farber Cancer Institute (DFCI) acute lymphoblastic leukemia (ALL) Consortium Protocol 91-01 was designed to improve the outcome of children with newly diagnosed ALL while minimizing toxicity. Compared with prior protocols, post-remission therapy was intensified by substituting dexamethasone for prednisone and prolonging the asparaginase intensification from 20 to 30 weeks. Between 1991 and 1995, 377 patients (age, 0-18 years) were enrolled; 137 patients were considered standard risk (SR), and 240 patients were high risk (HR). Following a 5.0-year median follow-up, the estimated 5-year event-free survival (EFS) +/- SE for all patients was 83% +/- 2%, which is superior to prior DFCI ALL Consortium protocols conducted between 1981 and 1991 (P =.03). There was no significant difference in 5-year EFS based upon risk group (87% +/- 3% for SR and 81% +/- 3% for HR, P =.24). Age at diagnosis was a statistically significant prognostic factor (P =.03), with inferior outcomes observed in infants and children 9 years or older. Patients who tolerated 25 or fewer weeks of asparaginase had a significantly worse outcome than those who received at least 26 weeks of asparaginase (P <.01, both univariate and multivariate). Older children (at least 9 years of age) were significantly more likely to have tolerated 25 or fewer weeks of asparaginase (P <.01). Treatment on Protocol 91-01 significantly improved the outcome of children with ALL, perhaps due to the prolonged asparaginase intensification and/or the use of dexamethasone. The inferior outcome of older children may be due, in part, to increased intolerance of intensive therapy.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
97
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1211-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:11222362-Adolescent, pubmed-meshheading:11222362-Antineoplastic Combined Chemotherapy Protocols, pubmed-meshheading:11222362-Asparaginase, pubmed-meshheading:11222362-Child, pubmed-meshheading:11222362-Child, Preschool, pubmed-meshheading:11222362-Clinical Protocols, pubmed-meshheading:11222362-Dexamethasone, pubmed-meshheading:11222362-Disease-Free Survival, pubmed-meshheading:11222362-Doxorubicin, pubmed-meshheading:11222362-Female, pubmed-meshheading:11222362-Follow-Up Studies, pubmed-meshheading:11222362-Humans, pubmed-meshheading:11222362-Infant, pubmed-meshheading:11222362-Infant, Newborn, pubmed-meshheading:11222362-Male, pubmed-meshheading:11222362-Precursor Cell Lymphoblastic Leukemia-Lymphoma, pubmed-meshheading:11222362-Risk Factors, pubmed-meshheading:11222362-Treatment Outcome
pubmed:year
2001
pubmed:articleTitle
Improved outcome for children with acute lymphoblastic leukemia: results of Dana-Farber Consortium Protocol 91-01.
pubmed:affiliation
Department of Pediatric Oncology, Dana-Farber Cancer Institute, the Division of Hematology/Oncology, Children's Hospital, Harvard Medical School, Boston, MA 02215, USA. lewis_silverman@dfci.harvard.edu
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Research Support, U.S. Gov't, P.H.S., Randomized Controlled Trial