Evidence map›Paper›PMID 22526411›Full record

Trial reportCancer chemotherapy and pharmacology2012

Open-label, phase I, pharmacokinetic studies of abiraterone acetate in healthy men.

M Acharya, A Bernard, M Gonzalez, J Jiao, R De Vries, N Tran

Open access · hybridAbstract readClinical Trial, Phase IRandomized Controlled Trial
In one paragraph

Trial report in Cancer chemotherapy and pharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

10 citing papers in PubMed, 46 citations in OpenAlex.

  1. Trial
  2. Association of Tissue Abiraterone Levels andClinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Abiraterone (zytiga), a novel agent for the management of castration-resistant prostate cancer.P & T : a peer-reviewed journal for formulary management · 2013
    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 2 countries.

M AcharyaJanssen Research and Development, LLC, 920 Route 202 South, Raritan, NJ 08869, USA. macharya@its.jnj.com
A Bernard
M Gonzalez
J Jiao
R De Vries
N Tran
Janssen (Belgium) · BEJanssen (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate pharmacokinetics, safety, and tolerability of abiraterone acetate (AA) in healthy men.

methodsTwo phase I studies (dose-escalation study and dose-proportionality study) were conducted in healthy men aged 18-55 years. All subjects received 4 consecutive single doses of AA (250, 500, 750 and 1,000 mg). The dose-escalation study subjects (N = 33) received AA doses in a sequential manner, starting with the lowest dose. The dose-proportionality study subjects (N = 32) were randomly allocated (1:1:1:1) to receive each of the 4 doses in a four-way crossover design.

resultsA dose-related increase in abiraterone exposure was observed in both studies. Over the evaluated dose range, the mean abiraterone maximum plasma concentrations increased from 26 to 112 ng/mL in dose-escalation study and from 40 to 125 ng/mL in dose-proportionality study; the mean area under the plasma concentration-time curve from 0 to the last measurable plasma concentration increased from 155 to 610 ng.h/mL in dose-escalation study, and from 195 to 607 ng.h/mL in dose-proportionality study. In the dose-proportionality study, abiraterone exposure was dose proportional between 1,000 and 750 mg doses; however, the exposure was slightly greater than dose proportional when exposures at 500 and 250 mg doses were compared with the exposure at 1,000 mg. Single doses of AA were well tolerated in healthy men, and safety profile was consistent with its known toxicities in CRPC patients.

conclusionSystemic exposure to abiraterone increased with increasing doses of AA (250-1,000 mg) in healthy men; AA was well tolerated in this population.

Indexed as

AdolescentAdultAndrostenesAndrostenolsDose-Response Relationship, DrugHumansLuteinizing HormoneMaleMiddle AgedTestosteroneabirateroneAndrostenesAndrostenolsLuteinizing HormoneTestosterone

Identifiers

PMID22526411
PMCPMC3362727
OpenAlexW2015014216

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.