Evidence map›Paper›PMID 24071762›Full record

Trial reportEuropean heart journal2014

Efficacy of the long-acting nitro vasodilator pentaerithrityl tetranitrate in patients with chronic stable angina pectoris receiving anti-anginal background therapy with beta-blockers: a 12-week, randomized, double-blind, placebo-controlled trial.

Thomas Münzel, Thomas Meinertz, Ulrich Tebbe, Heinrich Theodor Schneider, Dirk Stalleicken, Manfred Wargenau, Tommaso Gori, Ingrid Klingmann, CLEOPATRA Study Investigators

Open access · bronzeAbstract readClinical Trial, Phase IIIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in European heart journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

16 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Targeting vascular (endothelial) dysfunction.British journal of pharmacology · 2017
    Review
  12. Observational
  13. Vasodilator Therapy: Nitrates and Nicorandil.Cardiovascular drugs and therapy · 2016
    Review
  14. Review
  15. Review
  16. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Thomas Münzel2. Medizinische Klinik und Poliklinik, Universitätsmedizin Mainz, University Medical Center Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany.
Thomas Meinertz
Ulrich Tebbe
Heinrich Theodor Schneider
Dirk Stalleicken
Manfred Wargenau
Tommaso Gori
Ingrid Klingmann
CLEOPATRA Study Investigators
Albstadt-Sigmaringen University · DEJohannes Gutenberg University Mainz · DEKlinikum Lippe · DEUniversity Medical Center Hamburg-Eppendorf · DEUniversity of Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe organic nitrate pentaerithrityl tetranitrate (PETN) has been shown to have ancillary properties that prevent the development of tolerance and endothelial dysfunction. This randomized, double-blind, placebo-controlled, multicentre study ('CLEOPATRA' study) was designed to investigate the anti-ischaemic efficacy of PETN 80 mg b.i.d. (morning and mid-day) over placebo in patients with chronic stable angina pectoris. METHODS AND

resultsA total of 655 patients were evaluated in the intention-to-treat population, randomized to PETN (80 mg b.i.d., n = 328) or placebo (n = 327) and completed the study. Patients underwent treadmill exercise tests at randomization, after 6 and 12 weeks of treatment. Treatment with PETN over 12 weeks did not modify the primary endpoint total exercise duration (TED, P = 0.423). In a pre-specified sub-analysis of patients with reduced exercise capacity (TED at baseline ≤9 min, n = 257), PETN appeared more effective than placebo treatment (P = 0.054). Superiority of PETN over placebo was evident in patients who were symptomatic at low exercise levels (n = 120; P = 0.017). Pentaerithrityl tetranitrate 80 mg b.i.d. was well tolerated, and the overall safety profile was comparable with placebo.

conclusionAlthough providing no additional benefit in unselected patients with known coronary artery disease, PETN therapy, administered in addition to modern anti-ischaemic therapy, could increase exercise tolerance in symptomatic patients with reduced exercise capacity.

Indexed as

Adrenergic beta-AntagonistsAngina, StableChronic DiseaseDelayed-Action PreparationsDouble-Blind MethodExercise TestExercise ToleranceFemaleHumansMaleMedication AdherenceMiddle AgedPentaerythritol TetranitrateTreatment OutcomeVasodilator AgentsAdrenergic beta-AntagonistsDelayed-Action PreparationsPentaerythritol TetranitrateVasodilator AgentsChronic stable anginaOrganic nitratePentaerithrityl tetranitrateTotal exercise duration

Identifiers

PMID24071762
PMCPMC3977134
OpenAlexW2100313444

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.