- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT07563231
Polymer-free Sirolimus Eluting Stent: Real-world Investigation of Safety and Outcomes (POLARIS)
POLARIS : POLymer-free Sirolimus Eluting Stent: Real-world Investigation of Safety and Outcomes
Panoramica dello studio
Stato
Condizioni
Descrizione dettagliata
BACKGROUND. Newer-generation drug-eluting stents (DES) remain associated with late stent-related adverse events at approximately 2% per year, driven by neoatherosclerosis, delayed endothelial healing, and chronic inflammation attributable to permanent polymer coatings. Polymer-free DES were developed to remove this substrate. The polymer-free sirolimus-based submicron carrier-eluting stent Focus np (Abluminus np, Concept Medical, Tampa, FL, USA) (after: study device) is a novel polymer-free sirolimus-eluting stent built on a thin-strut (73 micrometres) cobalt-chromium platform, with drug delivery via biodegradable phospholipid submicron carriers (200-300 nm) confined to the abluminal surface, and a proprietary fusion coating extending sirolimus up to 5 mm beyond the stent edges. The device received CE marking on 24 January 2020. Only limited non-randomized Indian clinical data exist; no Western clinical data have been published.
OBJECTIVES. Primary: to evaluate device-oriented safety and efficacy (TLF at 12 months) of the stent in an all-comer population undergoing PCI at Geneva University Hospitals. Secondary: TLF at 2 and 5 years; individual components of TLF (cardiac death, target vessel MI, clinically indicated target lesion revascularisation) at 30 days, 12 months, 2 years, and 5 years; patient-oriented composite endpoint (all-cause death, any MI, any revascularisation); stent thrombosis (definite / probable, ARC-2, with temporal classification); target vessel failure; major bleeding (BARC 3 or 5); all-cause mortality; and late lumen loss when angiographic follow-up is available.
DESIGN. Prospective, single-centre, single-arm observational registry (Category A research with human subjects per the Swiss Human Research Act). Hybrid enrolment: retrospective identification from January 2021, prospective consent, and prospective follow-up at 30 days, 12 months, 2 years, and 5 years via medical records and telephone interview.
POPULATION. All consecutive adult patients (>= 18 years) treated with at least one study device stent at Geneva University Hospitals since January 2021, with an indication for PCI according to current European or American guidelines, able to provide written informed consent, and with sufficient knowledge of French, German, English, or Italian.
STATISTICS. Exploratory, descriptive analysis. Binary endpoints with Clopper-Pearson 95% confidence intervals; time-to-event analysis by Kaplan-Meier with Greenwood 95% CIs. Pre-specified exploratory subgroup analyses (sex, clinical presentation, diabetes, age, lesion complexity, stent length) presented as forest plots without between-group p-values. Sensitivity analyses include per-protocol, complete-case, landmark (30 days to 12 months), Fine-Gray competing-risk, and tipping point analyses. Analyses in Python (lifelines, pandas, scipy, statsmodels). Reporting follows STROBE.
Tipo di studio
Iscrizione (Stimato)
Contatti e Sedi
Contatto studio
- Nome: Juan F Iglesias, MD, FESC, FACC
- Numero di telefono: +41 22 372 72 00
- Email: juanFernando.Iglesias@hug.ch
Backup dei contatti dello studio
- Nome: Dorian Garin, MD
- Email: dorian.garin@hug.ch
Luoghi di studio
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Geneva, Svizzera, 1211
- Geneva University Hospitals (HUG) - Service of Cardiology
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Contatto:
- Juan F Iglesias, MD, FESC, FACC
- Numero di telefono: +41 22 372 72 00
- Email: juanFernando.Iglesias@hug.ch
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Contatto:
- Dorian Garin, MD
- Email: dorian.garin@hug.ch
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Investigatore principale:
- Juan F Iglesias, MD, FESC, FACC
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Sub-investigatore:
- Dorian Garin, MD
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- Age >= 18 years at the time of the index procedure.
- Percutaneous coronary intervention performed at Geneva University Hospitals between January 2021 and December 2025.
- Implantation of at least one study device
- Indication for PCI according to current European or American guidelines.
- Able and willing to provide written informed consent.
- Sufficient knowledge of French, German, English, or Italian to understand the patient information document.
Exclusion Criteria:
- Documented refusal to participate in research through opt-out from general consent.
- Inability to provide informed consent (cognitive impairment or other).
- Inability to be contacted for informed consent (no valid contact information, or unreachable after three contact attempts).
- Life expectancy less than 12 months due to non-cardiac comorbidities at the time of consent.
- Participation in another clinical trial that would interfere with the endpoints of this registry.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
Intervento / Trattamento |
|---|---|
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POLARIS cohort
Consecutive adult patients who received at least one polymer-free sirolimus-eluting stent during PCI at Geneva University Hospitals between January 2021 and December 2025.
No study-mandated procedures; clinical care follows standard institutional practice.
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Thin-strut (73 micrometres) cobalt-chromium coronary stent with polymer-free submicron phospholipid carriers (200-300 nm) delivering sirolimus exclusively to the abluminal surface, and fusion coating extending sirolimus deposition up to 5 mm beyond the stent edges.
CE-marked 24 January 2020.
Available diameters 2.25-4.0
mm and lengths 8-40 mm.
Manufactured by Concept Medical, Tampa, FL, USA.
Implantation and peri-procedural care follow operator discretion and institutional standard of care.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Target Lesion Failure (TLF)
Lasso di tempo: 12 months
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Device-oriented composite of cardiac death, target vessel myocardial infarction, and clinically indicated target lesion revascularisation, defined per Academic Research Consortium-2 (ARC-2) criteria.
Binary categorical variable analysed by time-to-first-event method.
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12 months
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Target Lesion Failure (TLF) at 2 and 5 years
Lasso di tempo: 2 years; 5 years
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Same ARC-2 composite definition as primary endpoint, assessed at 2 and 5 years.
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2 years; 5 years
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Cardiac death
Lasso di tempo: 30 days; 12 months; 2 years; 5 years
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30 days; 12 months; 2 years; 5 years
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Target vessel myocardial infarction
Lasso di tempo: 30 days; 12 months; 2 years; 5 years
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Myocardial infarction attributable to the target vessel, defined per ARC-2 and the 4th Universal Definition of Myocardial Infarction.
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30 days; 12 months; 2 years; 5 years
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Clinically indicated target lesion revascularisation
Lasso di tempo: 30 days; 12 months; 2 years; 5 years
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30 days; 12 months; 2 years; 5 years
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Patient-oriented composite endpoint (POCE)
Lasso di tempo: 12 months; 2 years; 5 years
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Composite of all-cause death, any myocardial infarction, and any revascularisation.
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12 months; 2 years; 5 years
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Definite or probable stent thrombosis (ARC-2)
Lasso di tempo: Acute (0-24h), subacute (1-30d), late (30d-1y), very late (>1y), up to 5 years
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Acute (0-24h), subacute (1-30d), late (30d-1y), very late (>1y), up to 5 years
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Target vessel failure (TVF)
Lasso di tempo: 12 months; 2 years; 5 years
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Composite of cardiac death, target vessel myocardial infarction, and clinically indicated target vessel revascularisation.
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12 months; 2 years; 5 years
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Major bleeding (BARC type 3 or 5)
Lasso di tempo: 12 months; 2 years; 5 years
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12 months; 2 years; 5 years
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All-cause mortality
Lasso di tempo: 12 months; 2 years; 5 years
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12 months; 2 years; 5 years
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Late lumen loss (mm)
Lasso di tempo: At clinically indicated follow-up angiography, up to 5 years
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In-stent late lumen loss by quantitative coronary angiography, assessed only in patients undergoing clinically indicated follow-up angiography.
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At clinically indicated follow-up angiography, up to 5 years
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Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Juan F Iglesias, MD, FESC, FACC, Geneva University Hospitals (HUG), Interventional Cardiology Unit
- Direttore dello studio: Dorian Garin, MD, Geneva University Hospitals (HUG), Department of Cardiology
Pubblicazioni e link utili
Pubblicazioni generali
- Mehran R, Rao SV, Bhatt DL, Gibson CM, Caixeta A, Eikelboom J, Kaul S, Wiviott SD, Menon V, Nikolsky E, Serebruany V, Valgimigli M, Vranckx P, Taggart D, Sabik JF, Cutlip DE, Krucoff MW, Ohman EM, Steg PG, White H. Standardized bleeding definitions for cardiovascular clinical trials: a consensus report from the Bleeding Academic Research Consortium. Circulation. 2011 Jun 14;123(23):2736-47. doi: 10.1161/CIRCULATIONAHA.110.009449. No abstract available.
- Garcia-Garcia HM, McFadden EP, Farb A, Mehran R, Stone GW, Spertus J, Onuma Y, Morel MA, van Es GA, Zuckerman B, Fearon WF, Taggart D, Kappetein AP, Krucoff MW, Vranckx P, Windecker S, Cutlip D, Serruys PW; Academic Research Consortium. Standardized End Point Definitions for Coronary Intervention Trials: The Academic Research Consortium-2 Consensus Document. Circulation. 2018 Jun 12;137(24):2635-2650. doi: 10.1161/CIRCULATIONAHA.117.029289.
- Thygesen K, Alpert JS, Jaffe AS, Chaitman BR, Bax JJ, Morrow DA, White HD; ESC Scientific Document Group. Fourth universal definition of myocardial infarction (2018). Eur Heart J. 2019 Jan 14;40(3):237-269. doi: 10.1093/eurheartj/ehy462. No abstract available.
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Studia le date principali
Inizio studio (Stimato)
Completamento primario (Stimato)
Completamento dello studio (Stimato)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Malattie vascolari
- Malattia cardiovascolare
- Processi patologici
- Malattie cardiache
- Infarto
- Necrosi
- Arteriosclerosi
- Malattie arteriose occlusive
- Malattia coronarica
- Ischemia miocardica
- Ischemia
- Condizioni patologiche, segni e sintomi
- Disfunsione dell'arteria coronaria
- Infarto miocardico
- Sindrome coronarica acuta
Altri numeri di identificazione dello studio
- POLARIS (Alias Study Number)
- POLARIS v1 04.03.2026 (Altro identificatore: Sponsor-Investigator protocol version)
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Descrizione del piano IPD
Periodo di condivisione IPD
Criteri di accesso alla condivisione IPD
Tipo di informazioni di supporto alla condivisione IPD
- STUDIO_PROTOCOLLO
- LINFA
- CODICE_ANALITICO
Informazioni su farmaci e dispositivi, documenti di studio
Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti
Studia un dispositivo regolamentato dalla FDA degli Stati Uniti
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
Prove cliniche su Polymer-free sirolimus-based submicron carrier-eluting stent Focus np (Abluminus np, Concept Medical, Tampa, FL, USA)
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IGLESIAS Juan FernandoClinical Trials Unit University of BernReclutamentoInfarto del miocardio con sopraslivellamento del tratto STSvizzera