Evidence map›Paper›PMID 26229963›Full record

Trial reportBioMed research international2015

Impact of Dabigatran versus Phenprocoumon on ADP Induced Platelet Aggregation in Patients with Atrial Fibrillation with or without Concomitant Clopidogrel Therapy (the Dabi-ADP-1 and Dabi-ADP-2 Trials).

Amadea M Martischnig, Julinda Mehilli, Janina Pollak, Tobias Petzold, Anette K Fiedler, Katharina Mayer, Stefanie Schulz-Schüpke, Dirk Sibbing, Steffen Massberg, Adnan Kastrati and 1 more

Open access · hybridAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BioMed research international, 2015. 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
2.5field-weighted citation impact, top 10% 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

8 citing papers in PubMed, 20 citations in OpenAlex.

  1. Observational
  2. Observational
  3. Review
  4. Article
  5. Thrombin Receptor Agonist Peptide-Induced Platelet Aggregation Is Reduced in Patients Receiving Dabigatran.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis · 2018
    Observational
  6. Article
  7. Article
  8. Observational
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

11 authors at 4 institutions in 1 country.

Amadea M MartischnigDeutsches Herzzentrum München, Technische Universität München, 80636 Munich, Germany.
Julinda MehilliLudwig-Maximilians-Universität München, 80337 Munich, Germany ; German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, 80802 Munich, Germany.
Janina PollakDeutsches Herzzentrum München, Technische Universität München, 80636 Munich, Germany.
Tobias PetzoldLudwig-Maximilians-Universität München, 80337 Munich, Germany.
Anette K FiedlerDeutsches Herzzentrum München, Technische Universität München, 80636 Munich, Germany.
Katharina MayerDeutsches Herzzentrum München, Technische Universität München, 80636 Munich, Germany.
Stefanie Schulz-SchüpkeDeutsches Herzzentrum München, Technische Universität München, 80636 Munich, Germany.
Dirk SibbingLudwig-Maximilians-Universität München, 80337 Munich, Germany ; German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, 80802 Munich, Germany.
Steffen MassbergLudwig-Maximilians-Universität München, 80337 Munich, Germany ; German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, 80802 Munich, Germany.
Adnan KastratiDeutsches Herzzentrum München, Technische Universität München, 80636 Munich, Germany ; German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, 80802 Munich, Germany.
Nikolaus SarafoffLudwig-Maximilians-Universität München, 80337 Munich, Germany.
Ludwig-Maximilians-Universität München · DEDeutsches Herzzentrum München · DETechnical University of Munich · DEGerman Centre for Cardiovascular Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA relevant number of patients receive triple therapy with clopidogrel, aspirin, and oral anticoagulation. Clopidogrel's efficacy on ADP induced platelet function may be influenced by concomitant antithrombotic therapies. Data regarding the effect of dabigatran on platelet function is limited to in vitro studies and healthy individuals.

methodsThe "Dabi-ADP-1" and "Dabi-ADP-2" trials randomized patients with atrial fibrillation to either dabigatran or phenprocoumon for a 2-week period. In Dabi-ADP-1 (n = 70) patients with clopidogrel therapy were excluded and in Dabi-ADP-2 (n = 46) patients had to be treated concomitantly with clopidogrel. The primary endpoint was ADP-induced platelet aggregation between dabigatran and phenprocoumon at 14 days. Secondary endpoints were ADPtest HS-, TRAP-, and COL-induced platelet aggregation.

resultsThere was no significant difference regarding the primary endpoint between both groups in either trial (Dabi-ADP-1: Dabigatran: 846 [650-983] AU × min versus phenprocoumon: 839 [666-1039] AU × min, P = 0.90 and Dabi-ADP-2: 326 [268-462] versus 350 [214-535], P = 0.70) or regarding the secondary endpoints, ADPtest HS-, TRAP-, and COL-induced platelet aggregation.

conclusionDabigatran as compared to phenprocoumon has no impact on ADP-induced platelet aggregation in atrial fibrillation patients neither with nor without concomitant clopidogrel therapy.

Indexed as

Atrial FibrillationAdenosine DiphosphateAdministration, OralAgedAged, 80 and overClopidogrelDabigatranFemaleFollow-Up StudiesHumansMaleMiddle AgedPhenprocoumonPlatelet AggregationTiclopidineAdenosine DiphosphateClopidogrelDabigatranPhenprocoumonTiclopidine

Identifiers

PMID26229963
PMCPMC4502273
OpenAlexW1568759852

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.