- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01358513
Role of Active Valvular Calcification and Inflammation in Patients With Aortic Stenosis
21. juni 2018 opdateret af: University of Edinburgh
An Observational PET/CT Study Examining the Role of Active Valvular Calcification and Inflammation in Patients With Aortic Stenosis
The aortic valve is the main outlet valve from the heart.
This valve can become diseased and narrowed when it needs to be replaced with an artificial valve.
Currently, this is the commonest reason for someone to undergo a heart valve operation in the UK.
Unfortunately, there are no medical treatments that can prevent or delay the progression of this disease process.
Here, the investigators propose to use new state-of-the-art imaging techniques to better understand the disease process so that the investigators can effectively design and assess potential new treatments.
The ultimate aim is to stop this disease before patients need to have surgery.
In addition the investigators believe this technique will allow us to predict the rate of progression of the disease
Studieoversigt
Status
Afsluttet
Betingelser
Detaljeret beskrivelse
Aortic stenosis is the commonest valvular heart disease in the western world and is the leading indication for valve surgery.
Histological studies have suggested similarities with atherosclerosis including inflammation, lipid deposition, increased macrophage activity and calcification.
However, recent randomised controlled trials have failed to demonstrate a reduction in the rate of disease progression with statin therapy and the investigators believe there is now a need to re-evaluate the underlying factors involved in the initiation and progression of aortic stenosis.
The investigators propose to assess the role of inflammation and calcification in the pathogenesis and progression of aortic stenosis by using positron emission tomography with [18F]-fluorodeoxyglucose and [18F-]-fluoride in patients with a range of aortic valve disease.
The investigators hypothesise that increasing severity of valvular inflammation and calcification will correlate with disease severity and rate of disease progression.
This work will lay the foundation for the subsequent application of interventions targeted at inflammation and calcification.
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
121
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Scotland
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Edinburgh, Scotland, Det Forenede Kongerige, EH16 4SE
- Centre for Cardiovascular Sciences, University of Edinburgh
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
50 år til 100 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ja
Køn, der er berettiget til at studere
Alle
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
The investigators will recruit 168 patients: 24 control patients, 24 mild, 48 moderate and 48 severe aortic stenosis
Beskrivelse
Inclusion Criteria:
- Age > 50 years
Exclusion Criteria:
- Age < 50 years
- Life expectancy < 2 years
- Insulin dependent diabetes mellitus
- Connective Tissue disorders
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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Control Patients
Patients with normal aortic valves
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Aortic sclerosis
To undergo PET imaging and follow up with CT and echo for 2 years
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Mild Aortic stenosis
To undergo PET imaging and follow up with CT and echo for 2 years
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Moderate Aortic stenosis
To undergo PET imaging and follow up with CT and echo for 2 years
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Severe aortic stenosis
To undergo PET imaging and follow up with CT and echo for 2 years
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Aortic Valve Peak Velocity
Tidsramme: 2 years
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We beleive NaF and FDG uptake in the valve will predict rate of progression of the disease.
Disease severity will be measured by the aortic valve peak velocity
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2 years
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Pawade T, Clavel MA, Tribouilloy C, Dreyfus J, Mathieu T, Tastet L, Renard C, Gun M, Jenkins WSA, Macron L, Sechrist JW, Lacomis JM, Nguyen V, Galian Gay L, Cuellar Calabria H, Ntalas I, Cartlidge TRG, Prendergast B, Rajani R, Evangelista A, Cavalcante JL, Newby DE, Pibarot P, Messika Zeitoun D, Dweck MR. Computed Tomography Aortic Valve Calcium Scoring in Patients With Aortic Stenosis. Circ Cardiovasc Imaging. 2018 Mar;11(3):e007146. doi: 10.1161/CIRCIMAGING.117.007146.
- Fletcher AJ, Tew YY, Tzolos E, Joshi SS, Kaczynski J, Nash J, Debono S, Lembo M, Kwiecinski J, Bing R, Syed MBJ, Doris MK, van Beek EJR, Moss AJ, Jenkins WS, Walker NL, Joshi NV, Pawade TA, Adamson PD, Whiteley WN, Wardlaw JM, Slomka PJ, Williams MC, Newby DE, Dweck MR. Thoracic Aortic 18F-Sodium Fluoride Activity and Ischemic Stroke in Patients With Established Cardiovascular Disease. JACC Cardiovasc Imaging. 2022 Jul;15(7):1274-1288. doi: 10.1016/j.jcmg.2021.12.013. Epub 2022 Feb 16.
- Dweck MR, Jenkins WS, Vesey AT, Pringle MA, Chin CW, Malley TS, Cowie WJ, Tsampasian V, Richardson H, Fletcher A, Wallace WA, Pessotto R, van Beek EJ, Boon NA, Rudd JH, Newby DE. 18F-sodium fluoride uptake is a marker of active calcification and disease progression in patients with aortic stenosis. Circ Cardiovasc Imaging. 2014 Mar;7(2):371-8. doi: 10.1161/CIRCIMAGING.113.001508. Epub 2014 Feb 7.
- Dweck MR, Khaw HJ, Sng GK, Luo EL, Baird A, Williams MC, Makiello P, Mirsadraee S, Joshi NV, van Beek EJ, Boon NA, Rudd JH, Newby DE. Aortic stenosis, atherosclerosis, and skeletal bone: is there a common link with calcification and inflammation? Eur Heart J. 2013 Jun;34(21):1567-74. doi: 10.1093/eurheartj/eht034. Epub 2013 Feb 7.
- Dweck MR, Chow MW, Joshi NV, Williams MC, Jones C, Fletcher AM, Richardson H, White A, McKillop G, van Beek EJ, Boon NA, Rudd JH, Newby DE. Coronary arterial 18F-sodium fluoride uptake: a novel marker of plaque biology. J Am Coll Cardiol. 2012 Apr 24;59(17):1539-48. doi: 10.1016/j.jacc.2011.12.037.
- Dweck MR, Jones C, Joshi NV, Fletcher AM, Richardson H, White A, Marsden M, Pessotto R, Clark JC, Wallace WA, Salter DM, McKillop G, van Beek EJ, Boon NA, Rudd JH, Newby DE. Assessment of valvular calcification and inflammation by positron emission tomography in patients with aortic stenosis. Circulation. 2012 Jan 3;125(1):76-86. doi: 10.1161/CIRCULATIONAHA.111.051052. Epub 2011 Nov 16.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. juli 2010
Primær færdiggørelse (Faktiske)
1. juli 2014
Studieafslutning (Faktiske)
1. juli 2015
Datoer for studieregistrering
Først indsendt
19. maj 2011
Først indsendt, der opfyldte QC-kriterier
20. maj 2011
Først opslået (Skøn)
23. maj 2011
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
25. juni 2018
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
21. juni 2018
Sidst verificeret
1. januar 2015
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- RING OF FIRE
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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