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EN PROSPEKTIV, MULTISENTER, ENARMET OBSERVASJONSSTUDIE ETTER MARKEDET FOR Å EVALUERE SIKKERHETEN OG KLINISKE YTELSEN TIL ARCHIMEDES BIOLOGISK NEDBRYTBARE GALLEVEKS- OG bukspyttkjertel-STENT (Registry)

1. oktober 2026 oppdatert av: QualiMed Innovative Medizinprodukte GmbH

Significant experience with biodegradable materials has been reported in the orthopedic literature; in particular; biodegradable stents have been used in the endovascular and urologic epithelium. Stents are typically made from polymeric materials including Polylactic Acid (PLA), Polyglycolide (PGA), Polydioxanone (PDO), Polyethyleneglycol (PEG), Polycaprolactone (PCL), etc., which have been cleared or approved by the FDA and CE-marked as drug carriers, sutures, and bone fixatives. The material is degraded by hydrolysis in, e.g., lactic acid, which is removed from the body by normal metabolic pathways. In the field of gastroenterology, these stents were first introduced in patients with an esophageal stenosis with encouraging results, although esophageal hyperplasia was a frequently encountered complication.

For biliary applications, biodegradable stents have been evaluated in several in-vitro and animal studies that demonstrated that the stents were safe and well tolerated. These stents provided an adequate radial force and resulted in complete stricture resolution within several months. The stents did not show any signs of biliary hyperplasia or integration in the epithelium. Moreover, they seem to have a self-clearing effect on attached biofilm as the outer layer sloughs during the degradation process similarly to the exfoliation of human skin. Also, the stent could be removed from the bile duct, thus offering the possibility of extraction if necessary at various times after implantation.

In 2010, Petryl was the first to use a biodegradable stent in the human bile duct. A stent was successfully placed using percutaneous transhepatic cholangiograpy in two patients with a postsurgical intrahepatic biliary stricture. Transient cholangitis was the only complication encountered and during the two years of follow-up, the bile duct remained patent.

Later, Mauri et al. presented in 2013 and 2016 results of a 107 patient study on a polydioxanone biodegradable biliary stent. The results have been published in the Journal of the European Society of Radiology. The authors concluded that percutaneous placement of a biodegradable biliary stent is a feasible and safe strategy to treat benign biliary strictures refractory to standard bilioplasty, with promising results in the mid-term period.

Prior to this study, the ARCHIMEDES device was assessed in the ARCHIMEDES Investigational study which has completed enrolment with 53 patients included, and the results are not yet published. In this study approximately half the stents were deployed in the bile duct (53%) and half in the pancreatic duct. All 53 patients have either completed, exited, or no longer have the study device. No patient remains in the study with a stent in place during the time of the last patient follow-ups. The study concluded without any device-related SAE. Bilirubin was reduced by 25.6%, which exceeded the >20% clinical success criterion, quality of life score improved from 3.7 to 7.9, procedural success was rated 1.4 (good to excellent), and technical success was achieved in all 53 patients.

Data from the ARCHIMEDES Investigational study was used for CE Mark approval, which was obtained in June 2018.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Studietype

Observasjonsmessig

Registrering (Antatt)

198

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

      • Helsinki, Finland, 00290
        • Fullført
        • HUS Helsinki University Hospital
      • Paris, Frankrike, 75015
        • Aktiv, ikke rekrutterende
        • Hôpital Européen Georges-Pompidou HEGP Service d'Hépato-gastro-entérologie et endoscopies digestives
      • Afula, Israel, 1834111
        • Fullført
        • Emek Medical Center
      • Forlì, Italia, 47121
        • Fullført
        • AUSL Romagna Ospedale Morgagni - Pierantoni
      • Pavia, Italia, 27100
        • Aktiv, ikke rekrutterende
        • Gastroenterology and Digestive Endoscopy Unit Fondazione I.R.C.C.S. Policlinico San Matteo
      • Roma, Italia, 00128
        • Aktiv, ikke rekrutterende
        • UCBM - Campus Bio-Medico University
    • Milano
      • Rozzano, Milano, Italia, 20089
        • Aktiv, ikke rekrutterende
        • Endoscopy Unit, Humanitas Research Hospital
      • Singapore, Singapore, 308433
        • Fullført
        • Tan Tock Seng Hospital Pte Ltd,
      • Ljubljana, Slovenia, 1000
        • Rekruttering
        • University Medical Center Ljubljana
        • Ta kontakt med:
        • Ta kontakt med:
        • Hovedetterforsker:
          • Dr Samo Plut, MD
      • Salamanca, Spania, 37007
        • Rekruttering
        • Hospital Universitario de Salamanca
        • Ta kontakt med:
        • Hovedetterforsker:
          • Dr. Alberto Álvarez Delgado, MD, PhD

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Patients that will respect the inlcusion criteria will be enrolled in the study.

Beskrivelse

Inclusion Criteria:

  • Patient eligible for implantation of a pancreatic or billiary stent prior to participate in the study and according to current guidelines
  • Patient has provided a signed and dated informed consent (according to the laws and regualtions of the country in which the observational study is conducted)

Exclusion Criteria:

  • Age < 18 y
  • Inability to understand the purpose of the study or refusal to cooperate
  • Not available for routine follow-up visits
  • Pregnancy
  • Currently participating in a confounding trial before reaching first endpoint.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Observasjonsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Patients will treated with ARCHIMEDES Biodegradable Biliary and Pancreatic Stent in routine practice

Participants receiving commercially available ARCHIMEDES Biodegradable Biliary and Pancreatic as part of standard care. Safety outcomes are collected for post-marketing surveillance

Patients will treated with ARCHIMEDES Biodegradable Biliary and Pancreatic Stent in routine clinical practice

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Primary Safety endpoint
Tidsramme: From enrollment to the end of treatment, as per the standard of care.

Proportion of subjects experiencing procedure- or device-related complications within 30 days including Post-ERCP pancreatitis, Bleeding, Perforation (biliary/pancreatic/duodenal), Stent misplacement, Stent migration, Biliary occlusion, Cholangitis, Severe pain, All-cause death Within 30 days of the index procedure

From enrollment to the end of treatment, as per the standard of care.

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Secondary endpoints are defined as:
Tidsramme: Technical and Procedural success on the Procedure day and clinical success as per the Standard of Care

Clinical success: patency rate as defined by the rate of freedom of stent replacements at follow-up time points defined by investigators definition of SOC (standard of care) or until planned bridge surgery (defined as no need of stent replacement).

Technical success: Accurate stent deployment across the target stricture as evaluated by fluoroscopy and endoscopy.

Procedural success will be quantified (using a dedicated score system, Excellence=1, Good=2, Fair=3, Poor=4) by the endoscopist post procedure using the following components:

  • Stent loadability
  • Trackability over Guide Wire
  • Pushibility with push catheter
  • Visualization by fluoroscopy
  • Stent repositiong when required
  • Deployment accuracy
Technical and Procedural success on the Procedure day and clinical success as per the Standard of Care

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

3. oktober 2020

Primær fullføring (Antatt)

30. juni 2027

Studiet fullført (Antatt)

31. desember 2027

Datoer for studieregistrering

Først innsendt

8. januar 2021

Først innsendt som oppfylte QC-kriteriene

12. januar 2021

Først lagt ut (Faktiske)

13. januar 2021

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

5. oktober 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

1. oktober 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • QM-NI-ABS-034

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .