Evidence map›Paper›PMID 25857394›Full record

Trial reportJournal of veterinary internal medicine

Randomized placebo-controlled clinical trial of a chewable formulation of amlodipine for the treatment of hypertension in client-owned cats.

M Huhtinen, G Derré, H J Renoldi, M Rinkinen, K Adler, J Aspegrén, C Zemirline, J Elliott

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of veterinary internal medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 4 pooled it
4.6field-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

22 citing papers in PubMed, 4 syntheses or guidelines pooled it, 45 citations in OpenAlex.

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  9. Manifestations of hypertensive encephalopathy in cats.Journal of feline medicine and surgery · 2023
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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 7 institutions in 4 countries.

M HuhtinenOrion Corporation Orion Pharma, Turku, Finland.
G DerréClinique Vétérinaire de la Plage, Marseille, France.
H J RenoldiTierarztpraxis Renoldi, Neuwied, Germany.
M RinkinenMEVET, Helsinki, Finland.
K AdlerKlifovet AG, Munich, Germany.
J AspegrénOrion Corporation Orion Pharma, Turku, Finland.
C ZemirlineCeva-Sogeval, Laval, France.
J ElliottRoyal Veterinary College, London, UK.
Orion Corporation (United Kingdom) · GBBMW (Germany) · DEClinique Vétérinaire Benjamin Franklin · FRFinnish National Agency for Education · FILaval Mayenne Technopole · FRRoyal Veterinary College · GBWEK Tierarzt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is an unmet clinical need for a cat-specific formulation of amlodipine to treat hypertensive cats.

objectivesTo assess the efficacy of chewable amlodipine tablets in reducing systolic blood pressure (SBP) in cats diagnosed with systemic arterial hypertension. ANIMALS: Seventy-seven client-owned cats with systemic hypertension were included (median age 14 years).

methodsThe study was randomized, double-blinded, and placebo-controlled. Forty-two cats received 0.125-0.50 mg/kg amlodipine once daily for 28 days; 35 cats received placebo. After 28 days all cats continued with amlodipine for 2-3 months in an open-label phase. Blood pressure was measured using high definition oscillometry. A responder was defined as a cat showing a decrease of SBP to <150 mmHg at 28 days or a decrease from baseline ≥15%.

resultsSixty-one cats completed the study. The responder rate was 63% in amlodipine group and 18% in placebo group. Cats receiving amlodipine were 7.9 (95% CI 2.6-24.1) times more likely to be classified as responders when compared to those receiving placebo (P < .001). From a mean (±SD) baseline value of 181 (±12) mmHg, SBP decreased to 154 (±17) mmHg with amlodipine and to 170 (±21) mmHg with placebo (P < .001). The voluntary acceptance rate of amlodipine formulation was 73%. CONCLUSIONS AND CLINICAL IMPORTANCE: The chewable amlodipine tablet effectively reduced SBP compared with placebo in hypertensive cats, and was well-tolerated. It can be used concomitantly with angiotensin-converting enzyme inhibitors and in cats with chronic kidney disease.

Indexed as

Administration, OralAmlodipineAnimalsAntihypertensive AgentsCat DiseasesCatsDouble-Blind MethodFemaleHypertensionMaleTabletsAmlodipineAntihypertensive AgentsTabletsCalcium channel blockerCardiovascular agentsEvidence based medicineFelineHigh definition oscillometry

Identifiers

PMID25857394
PMCPMC4895406
OpenAlexW2057043557

What OpenQuestion holds

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LicenceCC BY-NC
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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.