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The Solaris DE Sirolimus-Eluting Covered Stent for the Treatment of AV Access Stenosis or Occlusion (DEScover)

1 octobre 2026 mis à jour par: Scitech Produtos Medicos SA

Prospective, Randomized, Controlled, Multicenter Study of the Solaris DE Sirolimus-Eluting Covered Stent in the Treatment of Venous Outflow Stenosis or Occlusion in Hemodialysis Patients

The goal of this clinical trial is to demonstrate the safety and efficacy of Solaris Drug-Eluting Covered Stent (Solaris DE) in the treatment of stenosis or occlusion within the outflow circuit of the dialysis access including arteriovenous (AV) fistula and synthetic AV graft.

Participants will be treated with Solaris DE. Researchers will compare the treatment with investigational product to Percutaneous Transluminal Angioplasty (PTA) alone within the AV fistula cohort in order to demonstrate superiority of Solaris DE.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Description détaillée

This is a prospective, randomized (1:1), controlled, multicenter study to investigate the safety and efficacy of the Solaris DE in the treatment of hemodialysis patients with stenosis or occlusion of the venous outflow circuit. The study population includes three cohorts:

  • AVF cohort: subjects presenting an arteriovenous fistula (AVF) stenosis or occlusion of the peripheral venous outflow circuit, including the cephalic arch, will be randomized 1:1 between treatment with the test device (Solaris DE) or standard treatment by Percutaneous Transluminal Angioplasty (PTA) alone;
  • AVG cohort: subjects with an arteriovenous graft (AVG) presenting stenosis or occlusion at the graft vein anastomosis or juxta-anastomosis or at the segment of the prosthesis exit circuit, will be treated with the test device (Solaris DE) only.
  • AVF/ AVG cohort: subjects with AVF/AVG for hemodialysis who have stenosis or occlusion of the periferic venous outflow circuit (including the cephalic arch and anastomosis of the graft vein or juxta-anastomosis) will be treated with Solaris DE (200).

Type d'étude

Interventionnel

Inscription (Estimé)

160

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

Lieux d'étude

  • Brésil
    • Estado de Bahia
      • Salvador, Estado de Bahia, Brésil, 40323-010
        • Recrutement
        • Hospital Ana Nery
        • Chercheur principal:
          • Leonardo Cortizo, MD
        • Contact:
          • Leonardo Cortizo, MD
    • Federal District
      • Brasília, Federal District, Brésil, 70390-150
        • Recrutement
        • Afya Hospital Dia LTDA
        • Chercheur principal:
          • Thiago Barroso, MD
        • Contact:
          • Thiago A Barroso, MD
    • Minas Gerais
      • Belo Horizonte, Minas Gerais, Brésil, 30130-100
        • Recrutement
        • Hospital das Clínicas da UFMG/EBSERH
        • Contact:
          • Guilherme Castro, MD
        • Chercheur principal:
          • Guilherme Castro, MD
    • Pernambuco
      • Recife, Pernambuco, Brésil, 52010-160
        • Recrutement
        • Real Hospital Português de Beneficência em Pernambuco
        • Chercheur principal:
          • Douglas Cavalcanti, MD
        • Contact:
          • Douglas Cavacanti, MD
    • Rio de Janeiro
      • Rio de Janeiro, Rio de Janeiro, Brésil, 20551030
        • Recrutement
        • Hospital Universitário Pedro Ernesto - UERJ
        • Contact:
          • Leonardo O Harduin, MD
        • Chercheur principal:
          • Leonardo O Harduin, MD

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

18 ans et plus (Adulte, Adulte plus âgé)

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

La description

Inclusion Criteria:

  1. Male or female, aged ≥ 18 years on the date of inclusion.
  2. Has a mature AVF or AVG in the arm that was created ≥ 30 days before the initial procedure and is in use for dialysis therapy.
  3. Subject has clinical and/or hemodynamic evidence of a venous flow obstruction or AV fistula or graft dysfunction.
  4. Provides written informed consent prior to any study-specific procedures.
  5. Is willing to submit to all follow-up evaluations accordingly with the specified schedule over 24 months.

Angiographic Inclusion Criteria:

  1. The target lesion is localized:

    1. On an arm (including the cephalic arch) in an individual with AVF, and not on the cannulation segment (needling zone), OR
    2. On anastomosis or juxta-anastomosis in an individual with VAS. The juxta-anastomosis is defined as a location such that the stent graft crosses the venous anastomosis.

  2. The target lesion involves a de novo stenotic lesion or restenosis.

  3. The target lesion is ≥ 5 cm from the arterial anastomosis.

  4. The target lesion originates ≥ 3 cm of the cannulation segment (needling zone).

  5. The target lesion has ≥ 50% stenosis by the operator's visual estimate.

  6. The diameter of the distal reference vessel/graft is between 4.0 mm and 9.0 mm.

  7. The target lesion should be ≤ 8 cm in total length by the operator's visual estimate.

  8. Single or multiple target lesions may be covered by a single or two overlapping stents, provided that they are treated as a single lesion with a maximum length of 8 cm.

  9. There was a successful predilation of the target lesion, defined as crossing the guidewire resulting in full expansion of the predilation balloon.

  10. It presents up to 1 (one) non-target lesion in the access circuit requiring intervention in the initial procedure. The non-target lesion must be at least 10 cm away from the target lesion. The non-target lesion can only be treated with standard PTA.

  11. The non-target lesion was successfully treated at the time of the initial procedure (success measured as ≤30% residual stenosis and no complications).

  12. It does not have an endoprosthesis or has been in the access circuit for ≥ 30 days since placement and patent with ≤ 30% stenosis and is located ≥ 5 cm from the target lesion.

Exclusion Criteria:

  1. Pregnant, breastfeeding or intending to become pregnant in the next year.
  2. Presents with any planned major endovascular or surgical procedure (including in the access loop) within 30 days of the initial procedure.
  3. Planned surgical revision of the access site.
  4. Known or suspected hemodialysis access site infection, systemic infection, and/or septicemia.
  5. Patients on immunosuppressive therapy.
  6. Known active coagulopathy or bleeding diathesis.
  7. Known hypersensitivity to nickel titanium alloy, contrast or Sirolimus.
  8. Contraindication to antiplatelet, anticoagulant, or thrombolytic therapies.
  9. Known allergy to contrast agents or medications administered to perform endovascular intervention that cannot be adequately premedicated.
  10. Life expectancy less than 12 months.
  11. It is anticipated that the individual's hemodialysis access will be abandoned within 6 months.
  12. The patient is participating in another research study involving an investigational product (pharmaceutical, biologic, or medical device).
  13. The patient has a permanent central venous catheter (CVC) for dialysis access, except when the use is temporary, as a bridge to treatment through the access circuit and there is a plan for removal after a successful dialysis session after the initial procedure.

Angiographic Exclusion Criteria:

  1. Has a stent or stent graft located at any point in the AV access circuit that is not patent (> 30% stenosis) or implanted < 30 days.

  2. The target lesion is < 5 cm from the arterial anastomosis.

  3. It was not possible to perform predilation of the target lesion to be treated with Solaris DE.

  4. There was dissection/rupture of the treated vessel during the initial treatment that could not be controlled.

  5. There is evidence of an aneurysm, pseudoaneurysm, or acute thrombus in the target lesion. (Note: The aneurysm or pseudoaneurysm present at the access but outside the target lesion can be treated during the initial procedure. Patients with acute thrombus can only be included after 15 days of thrombus treatment).

  6. The target lesion is, and/or Solaris DE would be placed anywhere:

    1. In the elbow region and joint
    2. In a region that causes bending of the stent graft or bone protrusion over it
    3. In the cannulation segment (needling zone)
    4. Within any part of a pre-existing stent/stent graft (except for the arteriovenous graft of the access)
    5. Lower End
    6. Non-synthetic graft
    7. Central thoracic veins located proximally to the arch of the cephalic vein.

  7. The subject has more than one (1) non-target lesion (≥ 50% stenosis) that requires intervention in the initial procedure.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: AVF Treatment

Participants on dialysis via AV fistula will be treated with percutaneous transluminal angioplasty (PTA) followed by Solaris DE implantation.
Dispositif: Solaris DE

Percutaneous Transluminal Angioplasty (PTA) followed by Solaris DE (75μg of Sirolimus) implantation in the treated vessel.
Comparateur factice: AVF Control

Participants on dialysis via AV fistula will be treated with percutaneous transluminal angioplasty (PTA) alone.
Dispositif: PTA

Percutaneous Transluminal Angioplasty (PTA) in the treated vessel alone.
Expérimental: AVG Treatment

Participants on dialysis via AV graft will be treated with percutaneous transluminal angioplasty (PTA) followed by Solaris DE implantation.
Dispositif: Solaris DE

Percutaneous Transluminal Angioplasty (PTA) followed by Solaris DE (75μg of Sirolimus) implantation in the treated vessel.
Expérimental: AVF/ AVG Treatment

Participants on dialysis via AV fistula or graft will be treated with percutaneous transluminal angioplasty (PTA) followed by Solaris DE (200) implantation.
Dispositif: Solaris DE (200)

Percutaneous Transluminal Angioplasty (PTA) followed by Solaris DE (200μg of Sirolimus) implantation in the treated vessel.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Safety Events
Délai: 30 days

Percentage of participants without any safety events affecting the access or venous outflow circuit and resulting in new intervention, hospitalization or death (not including stenosis or thrombosis).
30 days
Target Lesion Primary Patency (TLPP)
Délai: 6 months

Percentage of participants without restenosis or clinically indicated target lesion revascularization or thrombosis.
6 months

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Target Lesion Primary Patency (TLPP)
Délai: 12 and 24 months

Percentage of participants without restenosis or clinically indicated target lesion revascularization or thrombosis.
12 and 24 months
Assisted Target Lesion Primary Patency (aTLPP)
Délai: 1, 6, 12 and 24 months

Percentage of participants without uncorrectable occlusion of the target lesion since the procedure.
1, 6, 12 and 24 months
Access Circuit Primary Patency (ACPP)
Délai: 1, 6, 12 and 24 months

Percentage of participants without any new venous outflow circuit intervention, thrombosis or access abandonment since the procedure.
1, 6, 12 and 24 months
Cumulative Patency (CP)
Délai: 1, 6, 12 and 24 months

Percentage of participants without the access circuit abandonment since the procedure.
1, 6, 12 and 24 months
Procedure and device-related complications
Délai: 1, 6, 12 and 24 months

Complication rates related to the procedure and device involving the access circuit.
1, 6, 12 and 24 months

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Scitech Produtos Medicos SA

Les enquêteurs

  • Chercheur principal: Leonardo C Almeida, MD, Hospital Ana Nery
  • Chercheur principal: Thiago A Almeida, MD, Afya Hospital Dia LTDA
  • Chercheur principal: Douglas E T Cavalcanti, MD, Real Hospital Português de Beneficência em Pernambuco
  • Chercheur principal: Guilherme C Santos, MD, Hospital das Clínicas da UFMG/EBSERH
  • Chercheur principal: Leonardo O Harduin, PhD, Hospital Universitário Pedro Ernesto - Universidade do Estado do Rio de Janeiro (HUPE-UERJ)

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

30 août 2024

Achèvement primaire (Estimé)

1 octobre 2027

Achèvement de l'étude (Estimé)

30 avril 2029

Dates d'inscription aux études

Première soumission

17 octobre 2023

Première soumission répondant aux critères de contrôle qualité

17 octobre 2023

Première publication (Réel)

23 octobre 2023

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

1 octobre 2026

Dernière vérification

1 octobre 2026

Plus d'information

Termes liés à cette étude

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • SCI-SD-001

Plan pour les données individuelles des participants (IPD)

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NON

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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