Evidence map›Paper›PMID 24023315›Full record

ArticleAnticancer research2013

Combination metronomic oral topotecan and pazopanib: a pharmacokinetic study in patients with gynecological cancer.

David C Turner, Todd D Tillmanns, K Elaine Harstead, Stacy L Throm, Clinton F Stewart

Abstract read
In one paragraph

Article in Anticancer research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Metronomics: towards personalized chemotherapy?Nature reviews. Clinical oncology · 2014
    Review
  8. 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

5 authors.

David C TurnerDepartment of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN, U.S.A. clinton.stewart@stjude.org.
Todd D Tillmanns
K Elaine Harstead
Stacy L Throm
Clinton F Stewart

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
NCI NIH HHS CA21765NCI NIH HHS P30 CA021765
6 · The paper itself

Abstract

backgroundCombination metronomic topotecan plus pazopanib is active against preclinical models of gynecological cancer. Both agents are substrates for ATP-binding cassette family transporters so there is an increased likelihood for pharmacokinetic (PK) drug-drug interactions. PATIENTS AND

methodsPK analyses of topotecan were performed during three cycles of a phase I dose-escalation study of metronomic topotecan and pazopanib in consenting adult patients with gynecological cancer. Concentration time data were analyzed using a population PK approach.

resultsTwenty-one patients were evaluable for serial PK studies. Considerable inter- and intra-patient variability was observed in the PK parameters, attributable primarily to highly variable oral bioavailability. No difference in topotecan disposition was detected between administration cycles, nor between the off- versus on-pazopanib studies.

conclusionThe lack of a statistically significant drug-drug interaction agrees with preclinical findings suggesting that pazopanib does not influence the PK of metronomic topotecan. No adjustment of low dose metronomic topotecan dosing is merited when used in conjunction with pazopanib.

Indexed as

Administration, OralAgedAngiogenesis InhibitorsAntineoplastic Combined Chemotherapy ProtocolsChromatography, High Pressure LiquidFemaleGenital Neoplasms, FemaleHumansIndazolesMiddle AgedPyrimidinesSulfonamidesTopotecanAngiogenesis InhibitorsIndazolespazopanibPyrimidinesSulfonamidesTopotecandrug drug interactiongynecological cancerMetronomic topotecanpazopanibpharmacokinetics

Identifiers

PMID24023315
PMCPMC4386652

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Registered trials

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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.