Evidence map›Paper›PMID 21935705›Full record

Trial reportEuropean journal of clinical pharmacology2012

Pharmacodynamics and pharmacokinetics of the novel PAR-1 antagonist vorapaxar (formerly SCH 530348) in healthy subjects.

Teddy Kosoglou, Larisa Reyderman, Renger G Tiessen, André A van Vliet, Robert R Fales, Robert Keller, Bo Yang, David L Cutler

Abstract readClinical Trial, Phase IRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of clinical pharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

32 citing papers in PubMed, 93 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Management of antithrombotic agents in patients undergoing flexible bronchoscopy.European respiratory review : an official journal of the European Respiratory Society · 2017
    Review
  15. Targeting PAR1: Now What?Trends in pharmacological sciences · 2017
    Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. 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

8 authors at 1 institution in 1 country.

Teddy KosoglouMerck, Whitehouse Station, NJ, USA. teddy.kosoglou2@merck.com
Larisa Reyderman
Renger G Tiessen
André A van Vliet
Robert R Fales
Robert Keller
Bo Yang
David L Cutler
Merck & Co., Inc., Rahway, NJ, USA (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of our study was to evaluate the pharmacology of vorapaxar (SCH 530348), an oral PAR-1 antagonist, in healthy volunteers. METHODS AND

resultsIn two randomized, placebo-controlled studies, subjects received either single ascending doses of vorapaxar (0.25, 1, 5, 10, 20, or 40 mg; n = 50), multiple ascending doses of vorapaxar (1, 3, or 5 mg/day for 28 days; n = 36), a loading dose (10 or 20 mg) followed by daily maintenance doses (1 mg) for 6 days (n = 12), or placebo. Single 20- and 40-mg doses of vorapaxar completely inhibited thrombin receptor activating peptide (TRAP)-induced platelet aggregation (>80% inhibition) at 1 h and sustained this level of inhibition for ≥72 h. Multiple doses yielded complete inhibition on Day 1 (5 mg/day) and Day 7 (1 and 3 mg/day). Adverse events were generally mild, transient, and unrelated to dose.

conclusionVorapaxar provided rapid and sustained dose-related inhibition of platelet aggregation without affecting bleeding or clotting times.

Indexed as

Platelet Aggregation InhibitorsAdolescentAdultBleeding TimeFemaleHumansLactonesMaleMiddle AgedPlatelet AggregationPyridinesYoung AdultLactonesPlatelet Aggregation InhibitorsPyridinesvorapaxar

Identifiers

PMID21935705
OpenAlexW1988477907

What OpenQuestion holds

Textmetadata
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.