Evidence map›Paper›PMID 11488779›Full record

Trial reportBritish journal of clinical pharmacology2001

Effects of supratherapeutic doses of ebastine and terfenadine on the QT interval.

M S Gillen, B Miller, P Chaikin, J Morganroth

Erratum issuedOpen access · bronzeAbstract readClinical TrialRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Advances in clinical application of HZhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2024
    Review
  5. Review
  6. Article
  7. Ebastine overdose in a child.Clinical case reports · 2017
    Article
  8. Cardiovascular safety of antihistamines.Postepy dermatologii i alergologii · 2014
    Review
  9. Slow QT interval adaptation to heart rate changes in normal ambulatory subjects.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2011
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

M S GillenRhône-Poulenc Rorer Pharmaceuticals Inc., Collegeville, PA, USA.
B Miller
P Chaikin
J Morganroth
Premier Research Group · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe objective of this study was to compare the effects of high doses of ebastine with terfenadine and placebo on QTc.

methodsThirty-two subjects were randomly assigned to four treatments (ebastine 60 mg x day(-1), ebastine 100 mg x day(-1), terfenadine 360 mg x day(-1), placebo) administered for 7 days. Serial ECGs were performed at baseline and day 7 of each period. QT interval was analysed using both Bazett (QTcB) and Fridericia (QTcF) corrections.

resultsEbastine 60 mg (+ 3.7 ms) did not cause a statistically significant change in QTcB compared with placebo (+ 1.4 ms). The mean QTcB for ebastine 100 mg was increased by + 10.3 ms which was significantly greater than placebo but was significantly less (P < 0.05) than with terfenadine 360 mg (+ 18.0 ms). There were no statistically significant differences in QTcF between ebastine 60 mg (-3.2 ms) or ebastine 100 mg (1.5 ms) and placebo (-2.1 ms); although terfenadine caused a 14.1 ms increase which was significantly different from the other three treatments. The increase in QTcB with ebastine most likely resulted from overcorrection of the small drug-induced increase in heart rate.

conclusionsEbastine at doses up to five times the recommended therapeutic dose did not cause clinically relevant changes in QTc interval.

Indexed as

AdolescentAdultButyrophenonesCross-Over StudiesDose-Response Relationship, DrugElectrocardiographyHeart RateHistamine H1 AntagonistsHumansMalePiperidinesTerfenadineButyrophenonesebastineHistamine H1 AntagonistsPiperidinesTerfenadine

Identifiers

PMID11488779
PMCPMC2014528
OpenAlexW1485216956

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.