Evidence map›Paper›PMID 30021213›Full record

ArticleStereotactic and functional neurosurgery2018

Large-Volume Infusions into the Brain: A Comparative Study of Catheter Designs.

Martin L Brady, Raghu Raghavan, Jaime Mata, Mike Wilson, Scott Wilson, Rick M Odland, William C Broaddus

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Stereotactic and functional neurosurgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

6 citing papers in PubMed, 15 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Convection-Enhanced Delivery in Children: Techniques and Applications.Advances and technical standards in neurosurgery · 2022
    Review
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 1 country.

Martin L BradyTherataxis LLC, Baltimore, Maryland, USA.
Raghu RaghavanTherataxis LLC, Baltimore, Maryland, USA.
Jaime MataDepartment of Radiology and Medical Imaging, University of Virginia, Charlottesville, Virginia, USA.
Mike WilsonTwin Star TDS, Lexington, Kentucky, USA.
Scott WilsonTwin Star TDS, Lexington, Kentucky, USA.
Rick M OdlandTwin Star TDS, Lexington, Kentucky, USA.
William C BroaddusDepartment of Neurosurgery, Medical College of Virginia/Virginia Commonwealth University, Richmond, Virginia, USA.
Abraxis (United States) · USTwin Star Medical (United States) · USHennepin County Medical Center · USUniversity of Virginia · USVirginia Commonwealth University Medical Center · US

Funding

Catheter for Large Volume Intraparenchymal Brain TherapiesR44NS084701 · NINDS · CREOSALUS, INC. · PI ABRAMOV, VASILIY · 2019 to 2021
$3.0M
Catheter for Large Volume Intraparenchymal Brain TherapiesR43NS084701 · NINDS · TWIN STAR TDS, LLC · PI STICE, JIM · 2014 to 2015
$747k
Large Volume Intratumoral Injection Device for Therapeutic Liver InfusionsR43CA192850 · NCI · TWIN STAR TDS, LLC · PI STICE, JIM · 2015 to 2016
$340k
NCI NIH HHS R43 CA192850NINDS NIH HHS R43 NS084701NINDS NIH HHS R44 NS084701
6 · The paper itself

Abstract

BACKGROUND/

aims"Whole-brain" infusions have emerged as a potential need with the promise of disease-modifying therapies for neurodegenerative diseases. In addition, several current clinical trials in brain cancer utilize direct delivery of drugs that are required to fill large volumes. Such requirements may not be well served by conventional single port catheters with their "point source" of delivery. Our aim is to examine infusions into large volumes of heterogeneous tissue, aiming for uniformity of distribution.

methodsA porous catheter (porous brain infusion catheter, PBIC), designed by Twin Star TDS LLC, for brain infusions was developed for this study and compared with another convection-enhanced delivery catheter (SmartFlowTM NGS-NC-03 from MRI Interventions, a step end-port catheter, SEPC) in current use in clinical trials. The studies were in vivo in porcine brain. A total of 8 pigs were used: the size of the pig brain limited the porous length to 15 mm. The placements of the tips of the two catheters were chosen to be the same (at the respective brain hemispheres).

resultsThe PBIC and SEPC both performed comparably and well, with the PBIC having some advantage in effecting larger distributions: p ∼ 0.045, with 5 infusions from each.

conclusionsGiven the performance of the PBIC, it would be highly appropriate to use the device for therapeutic infusions in human clinical trials to assess its capability for large-volume infusions.

Indexed as

CathetersAnimalsBrainDrug Delivery SystemsEquipment DesignMagnetic Resonance ImagingSwineConvection-enhanced deliveryIn vivo infusionsMicro-RNAParkinson’s diseasePorcine modelPorous brain infusion catheterSmall interfering RNA

Identifiers

PMID30021213
PMCPMC6093288
OpenAlexW2884294599

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.