Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-2-24
pubmed:abstractText
The poor prognosis associated with the current management of malignant gliomas has led investigators to develop alternative treatments such as targeted toxin therapy. The optimal method for administering these agents is under development but appears to be convection-enhanced delivery (CED). The direct intratumoral infusion of targeted toxins was first performed in nude mouse flank tumor models of human malignant glioma. After the demonstration of in vivo efficacy, these potent cytotoxic compounds were tested in Phase I and Phase II clinical trials. Using a high-flow microinfusion technique, volumes of up to 180 ml were infused by CED through catheters placed directly into brain tumors. Minor systemic toxicity was seen in the form of hepatic enzyme elevation. Neural toxicity manifested as seizure activity and hemiparesis resulted from peritumoral edema that followed the completion of the infusion. Peritumoral toxicity was believed to be more related to the concentration of the infused immunotoxin than to the infusion volume. In approximately half of patients treated with CED a stable disease course, a partial response, or a complete response was demonstrated in some clinical trials. Targeted toxin therapy has clinical efficacy in patients with malignant gliomas. Convection-enhanced delivery appears to represent an effective method for administering these agents in patients with malignant brain tumors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1092-0684
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
e2
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:15727423-Adolescent, pubmed-meshheading:15727423-Adult, pubmed-meshheading:15727423-Aged, pubmed-meshheading:15727423-Animals, pubmed-meshheading:15727423-Antibodies, Monoclonal, pubmed-meshheading:15727423-Antineoplastic Agents, pubmed-meshheading:15727423-Blood-Brain Barrier, pubmed-meshheading:15727423-Brain Neoplasms, pubmed-meshheading:15727423-Clinical Trials, Phase I as Topic, pubmed-meshheading:15727423-Clinical Trials, Phase II as Topic, pubmed-meshheading:15727423-Clinical Trials as Topic, pubmed-meshheading:15727423-Convection, pubmed-meshheading:15727423-Diffusion, pubmed-meshheading:15727423-Drug Delivery Systems, pubmed-meshheading:15727423-Female, pubmed-meshheading:15727423-Glioma, pubmed-meshheading:15727423-Humans, pubmed-meshheading:15727423-Immunotoxins, pubmed-meshheading:15727423-Infusions, Intralesional, pubmed-meshheading:15727423-Male, pubmed-meshheading:15727423-Meningeal Neoplasms, pubmed-meshheading:15727423-Mice, pubmed-meshheading:15727423-Middle Aged, pubmed-meshheading:15727423-Prognosis, pubmed-meshheading:15727423-Tissue Distribution, pubmed-meshheading:15727423-Treatment Outcome
pubmed:year
2003
pubmed:articleTitle
Convection-enhanced delivery in clinical trials.
pubmed:affiliation
Department of Neurosurgery, University of Minnesota Medical School, Minneapolis, Minnesota, USA.
pubmed:publicationType
Journal Article, Review