Linked Life Data

3477462

Source:http://linkedlifedata.com/resource/pubmed/id/3477462

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1987-10-29
pubmed:abstractText
This pharmacokinetic study examined the relationship between methotrexate (MTX) dose and drug concentrations in blood and cerebrospinal fluid (CSF) during repeated 24 hr infusions. Two regimens were used: an intermediate dose (ID) of 0.5 g/m2 (7 patients, 23 cycles) and a high dose (HD) of 2.5 g/m2 (8 patients, 39 cycles). Inter-patient variability in the drug concentration was apparent in serum and CSF for both doses. The dispersion was particularly wide in CSF for HD MTX. Considering median values, serum and CSF MTX were linked to dose escalation. Individual CSF/serum drug ratios were not modified by the dose (1.1% for ID MTX versus 1.4% for HD MTX). A potentially cytotoxic drug level in CSF (10(-6) M) was never obtained for ID MTX cycles, but was achieved in 44% of HD MTX cycles: for HD MTX, this corresponded to 88% of patients (7/8). Total body clearance did not modify the degree of CSF MTX passage. A positive, significant correlation (r = 0.62, P less than 0.05) was observed for ID MTX between individual serum and CSF MTX; no such relationship was seen with HD MTX. Individual cycle-to-cycle variations in the MTX concentration were particularly marked in CSF and for HD MTX, without strict concordance with blood levels.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0277-5379
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
843-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Effect of dose and repeat intravenous 24 hr infusions of methotrexate on cerebrospinal fluid availability in children with hematological malignancies.
pubmed:affiliation
Centre Antoine Lacassagne, Nice, France.
pubmed:publicationType
Journal Article