Evidence map›Paper›PMID 19898744›Full record

ArticleJournal of neuro-oncology2010

Convection-enhanced delivery of free gadolinium with the recombinant immunotoxin MR1-1.

Dale Ding, Charles W Kanaly, Darrell D Bigner, Thomas J Cummings, James E Herndon, Ira Pastan, Raghu Raghavan, John H Sampson

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.2field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
  2. Imaging of Convective Drug Delivery in the Nervous System.Neurosurgery clinics of North America · 2017
    Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Construction of an immunotoxin, D2C7-(scdsFv)-PE38KDEL, targeting EGFRwt and EGFRvIII for brain tumor therapy.Clinical cancer research : an official journal of the American Association for Cancer Research · 2013
    Article
  13. Review
  14. Review
  15. Article
  16. Convection enhanced delivery of macromolecules for brain tumors.Current drug discovery technologies · 2012
    Article
  17. Efficacy of vincristine administered via convection-enhanced delivery in a rodent brainstem tumor model documented by bioluminescence imaging.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2012
    Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
    Dosage error in article text
5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Dale DingSchool of Medicine, Duke University Medical Center, DUMC, Box 3050, 220 Sands Building, Research Drive, Durham, NC 27710, USA. dale.ding@duke.edu
Charles W Kanaly
Darrell D Bigner
Thomas J Cummings
James E Herndon
Ira Pastan
Raghu Raghavan
John H Sampson
Duke University Hospital · USDuke Medical Center · USDuke University · USNational Institutes of Health · US

Funding

Clinical Trials with ImmunotoxinsZIABC010020 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PASTAN, IRA · 2009 to 2022
$11.7M
BRAIN TUMORS: IMMUNOLOGICAL AND BIOLOGICAL STUDIESR37CA011898 · NCI · DUKE UNIVERSITY · PI BIGNER, DARELL D · 1988 to 2012
$8.1M
Growth Regulation SectionZIABC010298 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI PASTAN, IRA · 2009 to 2023
$5.0M
Duke CTSITL1RR024126 · NCRR · DUKE UNIVERSITY · PI CALIFF, ROBERT M · 2006 to 2010
$2.2M
Intramural NIH HHSNCI NIH HHS R37 CA011898NCRR NIH HHS TL1 RR024126NCRR NIH HHS TL1RR024126
6 · The paper itself

Abstract

A major obstacle in glioblastoma (GBM) therapy is the restrictive nature of the blood-brain barrier (BBB). Convection-enhanced delivery (CED) is a novel method of drug administration which allows direct parenchymal infusion of therapeutics, bypassing the BBB. MR1-1 is a novel recombinant immunotoxin that targets the GBM tumor-specific antigen EGFRvIII and can be delivered via CED infusion. However, drug distribution via CED varies dramatically, which necessitates active monitoring. Gadolinium conjugated to diethylenetriamine penta-acetic acid (Gd-DTPA) is a commonly used MRI contrast agent which can be co-infused with therapies using CED and may be useful in monitoring infusion leak and early distribution. Forty immunocompetent rats were implanted with intracerebral cannulas that were connected to osmotic pumps and subsequently randomized into four groups that each received 0.2% human serum albumin (HSA) mixed with a different experimental infusion: (1) 25 ng/ml MR1-1; (2) 0.1 micromol/ml Gd-DTPA; (3) 25 ng/ml MR1-1 and 0.1 micromol/ml Gd-DTPA; (4) 250 ng/ml MR1-1 and 0.1 micromol/ml Gd-DTPA. The rats were monitored clinically for 6 weeks then necropsied and histologically assessed for CNS toxicity. All rats survived the entirety of the study without clinical or histological toxicity attributable to the study drugs. There was no statistically significant difference in weight change over time among groups (P > 0.999). MR1-1 co-infused with Gd-DTPA via CED is safe in the long-term setting in a pre-clinical animal model. Our data supports the use of Gd-DTPA, as a surrogate tracer, co-infused with MR1-1 for drug distribution monitoring in patients with GBM.

Indexed as

Antibodies, MonoclonalContrast MediaConvectionDrug Delivery SystemsGadolinium DTPAImmunotoxinsAnimalsBrainDose-Response Relationship, DrugEpidermal Growth FactorImmunocompetenceMagnetic Resonance ImagingProtein PrecursorsRatsRats, Inbred F344Tissue DistributionAntibodies, MonoclonalContrast MediaEpidermal Growth Factorepidermal growth factor precursorGadolinium DTPAImmunotoxinsProtein Precursors

Identifiers

PMID19898744
PMCPMC3082317
OpenAlexW1996802335

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.