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Use of Various Types of Introducers in Conventional Radial Access (TIRE)

8 maggio 2026 aggiornato da: Aleksandr V. Bocharov, PhD, MD, Pirogov Russian National Research Medical University

The purpose of this intervention study is to compare different types of radial introducers used in traditional radial access in terms of the incidence of complications.

The main questions it aims to answer are:

  1. Does a smaller outer diameter of the introducer reduce the risk of complications associated with radial access?
  2. Does the presence of an outer hydrophilic coating on the introducer reduce the risk of complications associated with radial access?
  3. Does the use of an introducer with a smaller outer diameter and an outer hydrophilic coating reduce the risk of complications associated with radial access? The researchers will compare the number of complications associated with radial access when using conventional diameter, uncoated radial introducers, conventional diameter introducers with an outer hydrophilic coating, or reduced outer diameter introducers with an outer hydrophilic coating.

During the scheduled revascularization procedure, the participants will undergo radial artery catheterization using one of the types of introducers. Complications from the radiation access will be recorded by doctors within 72 hours after the intervention.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Objective: to compare different types of radial introducers used in conventional radial access by the frequency of complications.

Scientific hypotheses:

  1. The risk of acute radial artery occlusion depends on the outer diameter of the introducer.
  2. The risk of acute radial artery occlusion depends on the presence of an outer hydrophilic coating on the introducer.
  3. The risk of persistent radial artery spasm depends on the presence of an outer hydrophilic coating on the introducer.
  4. The risk of persistent radial artery spasm depends on the outer diameter of the introducer.

Patients were enrolled by endovascular specialists with experience of at least 250 radial-access procedures per year.

Inclusion criteria: clear pulsation of the right radial artery, indications for percutaneous coronary intervention.

Exclusion criteria: previous unsuccessful radial artery catheterization; concomitant pathology limiting patient survival; disorders of the blood coagulation system (hemophilia, thrombocytopathy, etc.); previous coronary artery bypass grafting; occlusion of the right radial artery.

The required sample size was calculated using the method of M. Bland for a high-precision study. The required significance level (α) was 0.001 and the statistical power was 95%. The expected rate of radial artery occlusion in the Rad, Rad polymer, and Rad slender groups was assumed to be 12%, 8%, and 8%, respectively. Under these conditions, the calculated sample size was 2723 patients. The planned loss during the study was 20%. Thus, the minimum sample size was 3268 patients.

The study had an experimental design and complied with the CONSORT protocol. A simple randomization method using a random-number generator was chosen. The type of randomization was permuted block randomization. The total block size was 3000, and the allocation ratio between the groups was 1:1:0.7.

Puncture of the right radial artery was performed after local anesthesia with a 2% lidocaine solution. The radial artery was punctured at the typical site using the puncture needle included in the introducer set, with only the anterior wall being punctured. The type of introducer was selected by randomization using a random-number method, and depending on this assignment the patient was allocated to one of the groups.

All patients underwent percutaneous coronary angioplasty with coronary artery stenting via the right radial artery. The radial artery catheterization technique did not differ between groups. The type of introducer was selected by randomization using a random-number method, and depending on this assignment the patient was allocated to one of the groups. In the Rad group , introducers without a hydrophilic coating were used; in the Rad polymer group , introducers with a hydrophilic coating were used; and in the Rad slender group , thin-walled introducers with a hydrophilic coating were used. The access site was examined within 3 hours after the intervention and then, in the absence of complaints, again at bandage removal. After bandage removal, patients underwent ultrasound examination to confirm radial artery patency. Complications from the radiation access will be recorded by doctors within 72 hours after the intervention.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

3307

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Kostroma Oblast
      • Kostroma, Kostroma Oblast, Russia, 156013
        • E.I. Korolev Kostroma Regional Clinical Hospital
    • Moscow
      • Moscow, Moscow, Russia, 119071
        • Central Clinical Hospital of St. Alexy Metropolitan of Moscow of the Moscow Patriarchate of the Russian Orthodox Church

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • clear pulsation of the right radial artery
  • indications for percutaneous coronary intervention

Exclusion Criteria:

  • previous unsuccessful radial artery catheterization
  • concomitant pathology limiting patient survival
  • disorders of the blood coagulation system (hemophilia, thrombocytopathy, etc.)
  • previous coronary artery bypass grafting
  • occlusion of the right radial artery

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Terapia di supporto
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Doppio

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore attivo: Rad classic
Introducer with a standard outer diameter and no external hydrophilic coating

The right radial artery was punctured under local anesthesia with a 2% lidocaine solution. The radial artery was punctured at a typical location using a puncture needle included in the catheterization kit, puncturing only the anterior wall.

An introducer with a standard outer diameter and no external hydrophilic coating was inserted.

5,000 IU of heparin in saline solution was injected into the catheterized artery. All injected solutions, including radiocontrast agents, had a temperature of 36.5-36.7 °C. Hemostasis was achieved by applying a pressure bandage.

The access site was examined 3 hours after the intervention, and then, if there were no complaints, it was examined again when the bandage was removed. After the bandage was removed, patients underwent an ultrasound examination to confirm the patency of the radial artery.

Complications were recorded within 3 days after the intervention.

Sperimentale: Rad polymer
Introducer with a standard outer diameter and an outer hydrophilic coating

Description: The right radial artery was punctured under local anesthesia with a 2% lidocaine solution. The radial artery was punctured at a typical location using a puncture needle included in the catheterization kit, puncturing only the anterior wall.

An introducer with a standard outer diameter and an outer hydrophilic coating was using.

5,000 IU of heparin in saline solution was injected into the catheterized artery. All injected solutions, including radiocontrast agents, had a temperature of 36.5-36.7 °C. Hemostasis was achieved by applying a pressure bandage. The access site was examined 3 hours after the intervention, and then, if there were no complaints, it was examined again when the bandage was removed. After the bandage was removed, patients underwent an ultrasound examination to confirm the patency of the radial artery. Complications were recorded within 3 days after the intervention.

Sperimentale: Rad slender
Introducer with a reduced outer diameter and an outer hydrophilic coating

Description: The right radial artery was punctured under local anesthesia with a 2% lidocaine solution. The radial artery was punctured at a typical location using a puncture needle included in the catheterization kit, puncturing only the anterior wall.

An introducer with a reduced outer diameter and an outer hydrophilic coating was using.

5,000 IU of heparin in saline solution was injected into the catheterized artery. All injected solutions, including radiocontrast agents, had a temperature of 36.5-36.7 °C. Hemostasis was achieved by applying a pressure bandage. The access site was examined 3 hours after the intervention, and then, if there were no complaints, it was examined again when the bandage was removed. After the bandage was removed, patients underwent an ultrasound examination to confirm the patency of the radial artery. Complications were recorded within 3 days after the intervention.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Acute radial artery occlusion after catheterization
Lasso di tempo: Within 72 hours after radial artery catheterization
Acute radial artery occlusion was confirmed by ultrasound examination
Within 72 hours after radial artery catheterization
Radial artery perforation
Lasso di tempo: Perioperative/Periprocedural
Angiography-confirmed perforation of the radial artery
Perioperative/Periprocedural
Radial artery false aneurysm
Lasso di tempo: Within 72 hours after radial artery catheterization
A false aneurysm of the radial artery was confirmed by ultrasound examination
Within 72 hours after radial artery catheterization
Hematoma by classification EASY Grade II
Lasso di tempo: Within 72 hours after radial artery catheterization
Hematoma by classification EASY Grade II was confirmed by ultrasound examination
Within 72 hours after radial artery catheterization
Persistent radial artery spasm
Lasso di tempo: Perioperative/Periprocedural
Persistent radial artery spasm confirmed by angiography
Perioperative/Periprocedural

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

28 gennaio 2019

Completamento primario (Effettivo)

16 dicembre 2025

Completamento dello studio (Effettivo)

19 dicembre 2025

Date di iscrizione allo studio

Primo inviato

22 aprile 2026

Primo inviato che soddisfa i criteri di controllo qualità

6 maggio 2026

Primo Inserito (Effettivo)

7 maggio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

13 maggio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

8 maggio 2026

Ultimo verificato

1 maggio 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 260/1

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

SÌ

Descrizione del piano IPD

all personal data underlying the publication results

Periodo di condivisione IPD

Beginning 6 months and ending 1 years after the publication of results

Tipo di informazioni di supporto alla condivisione IPD

  • STUDIO_PROTOCOLLO
  • LINFA
  • RSI

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

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 .