Evidence map›Paper›PMID 26354796›Full record

ArticleBMC cancer2015

Boronic prodrug of 4-hydroxytamoxifen is more efficacious than tamoxifen with enhanced bioavailability independent of CYP2D6 status.

Qiu Zhong, Changde Zhang, Qiang Zhang, Lucio Miele, Shilong Zheng, Guangdi Wang

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
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  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Boronic acid with high oxidative stability and utility in biological contexts.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Pharmacogenomics of breast cancer: highlighting CYP2D6 and tamoxifen.Journal of cancer research and clinical oncology · 2020
    Review
  13. Review
  14. Article
  15. Article
  16. Article
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  18. Article
  19. 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

6 authors at 2 institutions in 1 country.

Qiu ZhongRCMI Cancer Research Center and Department of Chemistry, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA, 70125, USA. qzhong@xula.edu.
Changde ZhangRCMI Cancer Research Center and Department of Chemistry, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA, 70125, USA. czhang1@xula.edu.
Qiang ZhangRCMI Cancer Research Center and Department of Chemistry, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA, 70125, USA. qzhang1@xula.edu.
Lucio MieleDepartment of Genetics and LSU Stanley Scott Cancer Center, LSU Health Sciences Center, 1 Drexel Dr., New Orleans, LA, 70112, USA. lmiele@lsuhsc.edu.
Shilong ZhengRCMI Cancer Research Center and Department of Chemistry, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA, 70125, USA. szheng@xula.edu.
Guangdi WangRCMI Cancer Research Center and Department of Chemistry, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, LA, 70125, USA. gwang@xula.edu.
Xavier University of Louisiana · USLouisiana State University Health Sciences Center New Orleans · US

Funding

Tracking & Evaluation CoreU54GM104940 · NIGMS · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Peter Todd Katzmarzyk · 2012 to 2026
$69.1M
Xavier's RCMI Cancer Research ProgramG12MD007595 · NIMHD · XAVIER UNIVERSITY OF LOUISIANA · PI D'AMOUR, GENE, WANG, GUANGDI · 2012 to 2018
$15.7M
NIGMS NIH HHS 1U54GM104940NIGMS NIH HHS U54 GM104940NIMHD NIH HHS 2G12MD007595NIMHD NIH HHS G12 MD007595
6 · The paper itself

Abstract

backgroundPoor initial response to tamoxifen due to CYP2D6 polymorphism and adverse side effects are two clinical challenges in tamoxifen therapy. We report the development and preclinical testing of a boronic prodrug to orally deliver 4-OHT at therapeutically effective concentrations but at a fraction of the standard tamoxifen dose.

methodsA mouse xenograft tumor model was used to investigate the efficacy of ZB497 in comparison with tamoxifen. Pharmacokinetic studies were conducted to evaluate the metabolism and bioavailability of the drug in mice. Drug and metabolites distribution in xenograft tumor tissues was determined by high performance liquid chromatography-tandem mass spectrometry.

resultsThe boronic prodrug, ZB497, can not only be efficiently converted to 4-OHT in mice, but also afforded over 30 fold higher plasma concentrations of 4-OHT than in mice given either the same dose of 4-OHT or tamoxifen. Further, ZB497 was more effective than tamoxifen at lowered dosage in inhibiting the growth of xenograft tumors in mice. Consistent with these observations, ZB497 treated mice accumulated over 6 times higher total drug concentrations than tamoxifen treated mice.

conclusionsOur study demonstrates that ZB497 effectively delivers a markedly increased plasma concentration of 4-OHT in mice. The boronic prodrug was shown to have far superior bioavailability of 4-OHT compared to tamoxifen or 4-OHT administration as measured by the area under the plasma concentration time curve (AUC), plasma peak concentrations, and drug accumulation in tumor tissues. Further, ZB497 proves to be a more efficacious hormone therapy than tamoxifen administered at a reduced dose in mice.

Indexed as

ProdrugsAnimalsAntineoplastic AgentsBiological AvailabilityBreast NeoplasmsCell Line, TumorChromatography, High Pressure LiquidCytochrome P-450 CYP2D6Drug Evaluation, PreclinicalFemaleHeterograftsMiceMice, NudeModels, AnimalTamoxifenTandem Mass SpectrometryafimoxifeneAntineoplastic AgentsCytochrome P-450 CYP2D6ProdrugsTamoxifen

Identifiers

PMID26354796
PMCPMC4563833
OpenAlexW1889033264

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.