Evidence map›Paper›PMID 32664768›Full record

ArticleInternational journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group2020

Safety and efficacy of intravesical chemotherapy and hyperthermia in the bladder: results of a porcine study.

Wei Phin Tan, Andrew Chang, Steven C Brousell, Dominic C Grimberg, Joseph J Fantony, Thomas A Longo, Wiguins Etienne, Ivan Spasojevic, Paolo Maccarini, Brant A Inman

Open access · goldAbstract read
In one paragraph

Article in International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

14 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
  2. Heat-activated intravenous liposomal doxorubicin combined with mitomycin C hyperthermic intravesical chemotherapy (HIVEC) for treatment of bladder cancer.International journal of hyperthermia : the official journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Device-Assisted Therapy in Non-Muscle-Invasive Bladder Cancer.Bladder cancer (Amsterdam, Netherlands) · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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

10 authors at 2 institutions in 1 country.

Wei Phin TanDivision of Urology, Duke University Medical Center, Durham, NC, USA.ORCID 0000-0003-2651-781X
Andrew ChangDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Steven C BrousellDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Dominic C GrimbergDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Joseph J FantonyDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Thomas A LongoDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Wiguins EtienneDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Ivan SpasojevicDuke Cancer Institute, Duke University Medical Center, Durham, NC, USA.
Paolo MaccariniDepartment of Biomedical Engineering, Duke University, Durham, NC, USA.
Brant A InmanDivision of Urology, Duke University Medical Center, Durham, NC, USA.
Duke Medical Center · USDuke University · US

Funding

Translational Research in Surgical OncologyT32CA093245 · NCI · DUKE UNIVERSITY · PI ALLEN, PETER J, HARPOLE, DAVID H. · 2002 to 2020
$5.2M
NCI NIH HHS T32 CA093245
6 · The paper itself

Abstract

backgroundHyperthermia (heating to 43 °C) activates the innate immune system and improves bladder cancer chemosensitivity.

objectiveTo evaluate the tissue penetration and safety of convective hyperthermia combined with intravesical mitomycin C (MMC) pharmacokinetics in live porcine bladder models using the Combat bladder recirculation system (BRS).

methodsForty 60 kg-female swine were anesthetized and catheterized with a 3-way, 16 F catheter. The Combat device was used to heat the bladders to a target temperature of 43 °C with recirculating intravesical MMC at doses of 40, 80, and 120 mg. Dwell-heat time varied from 30-180 min. Rapid necropsy with immediate flash freezing of tissues, blood and urine occurred. MMC concentrations were measured by liquid chromatography tandem-mass spectrometry.

resultsThe Combat BRS system was able to achieve target range temperature (42-44 °C) in 12 mins, and this temperature was maintained as long as the device was running. Two factors increased tissue penetration of MMC in the bladder: drug concentration, and the presence of heat. In the hyperthermia arm, MMC penetration saturated at 80 mg, suggesting that with heating, drug absorption may saturate and not require higher doses to achieve the maximal biological effect. Convective hyperthermia did not increase the MMC concentration in the liver, heart, kidney, spleen, lung, and lymph node tissue even at the 120 mg dose.

conclusionsConvective bladder hyperthermia using the Combat BRS device is safe and the temperature can be maintained at 43 °C. Hyperthermia therapy may increase MMC penetration into the bladder wall but does not result in an increase of MMC levels in other organs.

Indexed as

Hyperthermia, InducedUrinary Bladder NeoplasmsAdministration, IntravesicalAnimalsAntibiotics, AntineoplasticFemaleHyperthermiaMitomycinSwineAntibiotics, AntineoplasticMitomycinBladder hyperthermiaheated chemotherapyheated mitomycinHIVECintravesical chemotherapyintravesical mitomycin

Identifiers

PMID32664768
PMCPMC7700761
OpenAlexW3042705274

What OpenQuestion holds

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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.