Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8218
pubmed:dateCreated
1981-4-13
pubmed:abstractText
The Children's Cancer Study Group has organised two therapeutic clinical trials designed to evaluate the efficacy of various types and doses of CNS prophylaxis in the treatment of childhood acute lymphoblastic leukaemia. Of 478 previously untreated patients who subsequently achieved an initial marrow remission, 299 were randomised to receive 2400 rad craniospinal radiation therapy (RT) or 2400 rad cranial RT plus intrathecal methotrexate (i.t. MTX) while the remaining 179 patients were randomised between the same two regimens using a radiation dose of 1800 rad. All patients received identical induction and maintenance chemotherapy. Comparison of the two studies indicated that reduction of the dose of CNS radiation from 2400 rad to 1800 rad did not result in a significant increase in the frequency of CNS relapse, bone marrow relapse, or death. Moreover, no significant differences were observed when analyses were done within prognostic risk groups. Randomised trials with RT doses lower than 1800 rad or with i.t. chemotherapy alone should be considered to determine the most effective and least toxic forms of CNS prophylaxis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0140-6736
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
461-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1981
pubmed:articleTitle
Presymptomatic central nervous system therapy in previously untreated childhood acute lymphoblastic leukaemia: comparison of 1800 rad and 2400 rad. A report for Children's Cancer Study Group.
pubmed:publicationType
Journal Article, Clinical Trial, Comparative Study, Research Support, U.S. Gov't, P.H.S., Randomized Controlled Trial, Research Support, Non-U.S. Gov't