Evidence map›Paper›PMID 7833220›Full record

Trial reportBritish journal of clinical pharmacology1994

Inhibition of bradykinin-induced vasodilation in human forearm vasculature by icatibant, a potent B2-receptor antagonist.

J R Cockcroft, P J Chowienczyk, S E Brett, N Bender, J M Ritter

Open access · bronzeAbstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

27 citing papers in PubMed, 92 citations in OpenAlex.

  1. Trial
  2. Bradykinin BBMC nephrology · 2023
    Trial
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. The Story of Angioedema: from Quincke to Bradykinin.Clinical reviews in allergy & immunology · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Therapeutic approaches in hereditary angioedema.Clinical reviews in allergy & immunology · 2011
    Review
  19. Icatibant.Drugs · 2010
    Article
  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

5 authors at 1 institution in 1 country.

J R CockcroftDepartment of Clinical Pharmacology, United Medical School, Guy's Hospital, London.
P J Chowienczyk
S E Brett
N Bender
J M Ritter
Guy's Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

1. The effect of icatibant (D-Arg-[Hyp3, Thi5, D-Tic7, Oic8] bradykinin) a potent B2-kinin receptor antagonist, was studied on bradykinin-induced vasodilation in the human forearm. 2. Eight healthy normotensive men were studied in a rising dose random-placebo controlled study. Placebo and icatibant (20, 50 and 100 micrograms kg-1 i.v.) were administered double-blind. Forearm blood flow was measured by venous occlusion plethysmography during rising dose brachial artery infusions of bradykinin (10-3,000 ng min-1) 60-90 min after placebo or icatibant. 3. Plasma concentrations of icatibant fell exponentially following each of three doses, up to the final measurement. Elimination half-lives calculated from linear regression of the mean data were 25, 27 and 29 min after 20, 50 and 100 micrograms kg-1 doses respectively. 4. Icatibant inhibited the effect of bradykinin (P < 0.001 at each dose of icatibant) in a dose-dependent manner. Bradykinin (100 ng min-1) increased mean blood flow in the infused arm by 238 +/- 31% when infused following placebo, by 112 +/- 21% after icatibant 20 micrograms kg-1, by 71 +/- 14% after icatibant 50 micrograms kg-1 and by 48 +/- 9% after icatibant 100 micrograms kg-1. 5. These results demonstrate that icatibant antagonises B2-receptor mediated vasodilation in human forearm resistance vessels. The findings provide a quantitative basis for future studies of the role of bradykinin in the response to angiotensin converting enzyme inhibitors and in circulatory disease.

Indexed as

Adrenergic beta-2 Receptor AntagonistsAdrenergic beta-AntagonistsAdultAnalysis of VarianceBlood PressureBrachial ArteryBradykininBradykinin Receptor AntagonistsDose-Response Relationship, DrugDouble-Blind MethodForearmHalf-LifeHumansInfusions, Intra-ArterialInfusions, IntravenousLinear ModelsAdrenergic beta-2 Receptor AntagonistsAdrenergic beta-AntagonistsB 4162BradykininBradykinin Receptor Antagonistsicatibant

Identifiers

PMID7833220
PMCPMC1364774
OpenAlexW2120129002

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.