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Tvåårig studie av säkerheten och effektiviteten av andra generationens vävnadskonstruerade kärltransplantat (TEVG-2)

7 november 2026 uppdaterad av: Nationwide Children's Hospital

Prospektiv, öppen märkt, enarmad klinisk prövning för att utvärdera säkerheten och effektiviteten av den andra generationens vävnadskonstruerade kärltransplantat som kärlledningar för extrakardiell total kavopulmonell anslutning.

A single arm clinical trial evaluating the safety and efficacy of the second generation TEVG as vascular conduits for extracardiac total cavopulmonary connection.

Studieöversikt

Status

Rekrytering

Betingelser

Intervention / Behandling

Detaljerad beskrivning

This investigation is a prospective, open-labeled clinical trial determining the safety of the use of tissue engineered vascular grafts as conduits for EC TCPC. Patients will be monitored for adverse events (AE) and serious adverse events (SAE). Special attention will be paid to the incidence of stenosis. We will determine graft-related morbidity and mortality for the second generation TEVGs which will include any post-operative complication such as any aneurismal dilation, stenosis, thromboembolic or infectious event that requires treatment and is thought to be caused by the graft as determined by the investigators and confirmed by the data safety monitoring board. The graft related complication rates will be compared between the first and second generation TEVGs. An interim analysis will be performed to assess the incidence of early (<6 month) graft-related complications in the first 6 enrolled patients. Safety and tolerability will be assessed through serial imaging, to determine the effect of growth and remodeling on graft performance through echocardiography and 4-dimensional MRI. All appropriate patients requiring EC TCPC who meet study inclusion/exclusion criteria will be evaluated for enrollment in the clinical trial. All enrolled subjects will be required to have follow-up visits at Nationwide Children's Hospital for a minimum of 2 years following implant. After obtaining informed consent for the patient's parents, patients with single ventricle cardiac anomalies will undergo EC TCPC using a tissue engineered conduit. Post-operative care and monitoring will follow an established, standardized, clinical algorithm in which the patient's clinical status including complications and measurements of graft function will be serially evaluated and recorded over a two year period using physical examination, echocardiography, and MRI.

Studietyp

Interventionell

Inskrivning (Beräknad)

24

Fas

  • Fas 2

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studera Kontakt Backup

Studieorter

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Barn
  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Patients will be eligible for inclusion in the study if they meet all of the following criteria.

    1. Patient must be a candidate to undergo an extracardiac total cavopulmonary connection.
    2. Patient and/or legal guardian must voluntarily provide informed consent/assent for participation in the study.

Exclusion Criteria:

  • Patients will be excluded from participation in the study if they meet any of the following criteria.

    1. Patient has an urgent/emergent operative status.
    2. Patient has acute renal failure or renal insufficiency in the opinion of the investigator
    3. Patient requires a graft less than 12 mm or greater than 24 mm in diameter.
    4. Patient has a pacemaker.
    5. Patient has pulmonary vascular resistance greater than 4 um2 (u=Wood's units)
    6. Patient has abnormal venous drainage (interrupted inferior vena cava [IVC]).
    7. Patient presents with significant atrio-ventricular valve regurgitation that in the opinion of the investigator, makes them ineligible.
    8. Patient has a history of another condition or significant medical problem that, in the opinion of the investigator, precludes compliance with protocol-specified procedures.
    9. Patients taking any medications that in the opinion of the Investigator could interfere with the TEVG, including bisphosphonates (i.e. Clodronate or Zoledronate).
    10. Patient or parent/legal guardian is, in the opinion of the investigator, unable to comply with protocol evaluations.
    11. Preoperative hemoglobin <11.0 mg/dL at time of patient's pre-admission testing.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Vävnadskonstruerade kärltransplantat

Patients will undergo EC TCPC interposition grafting with a tissue engineered vascular graft and serial magnetic resonance imaging (MRI)

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Safety and Tolerability of TEVG
Tidsram: 2 years

Assessed through graft related complications as determined by serial echocardiogram

2 years
Safety and Tolerability of TEVG
Tidsram: 2 years

Assessed through graft related complications as determined by serial MRI

2 years
Safety and Tolerability of TEVG
Tidsram: 2 years

Assessed through adverse events

2 years

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Efficacy of TEVG
Tidsram: 2 years

Evaluate graft performance based on MRI

2 years
Efficacy of TEVG
Tidsram: 2 years

Measured graft volume(mL) as determined by MRI

2 years
Efficacy of TEVG
Tidsram: 2 years

Measured graft length (mm) as determined by MRI

2 years

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Samarbetspartners

Utredare

  • Studiestol: Christopher Breuer, MD, Nationwide Children's Hospital
  • Studiestol: Toshiharu Shinoka, MD/PhD, Nationwide Children's Hospital
  • Huvudutredare: Mark Galantowicz, MD, Nationwide Children's Hospital

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

15 juli 2020

Primärt slutförande (Beräknad)

1 december 2029

Avslutad studie (Beräknad)

1 december 2031

Studieregistreringsdatum

Först inskickad

30 juni 2020

Först inskickad som uppfyllde QC-kriterierna

8 juli 2020

Första postat (Faktisk)

13 juli 2020

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

10 november 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

7 november 2026

Senast verifierad

1 november 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • IDE18703
  • 5UH3HL148693 (U.S.S. NIH-anslag/kontrakt)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

Biological Samples: We plan to make available representative samples of the bone marrow-derived mononuclear cells and seeded scaffold to a NIH-designated entity (RM Innovation Catalyst) for in depth and independent characterization. Specifically, for each TEVG manufactured, 1 ml of bone marrow-derived mononuclear cells and a 5mm x 5mm section of the seeded scaffold will be sampled, packed, and transported to the RM Innovation Catalyst per their instructions. In addition, copies of the batch record and completed certificate of analysis will be forwarded to the NIH-designated laboratory.

Tidsram för IPD-delning

Prior to study initiation, the US FDA will have a comprehensive description of the processes followed to assure the accuracy, reliability, integrity, availability, and authenticity of required records and signatures supporting the data reported in the CSR will be provided to the Agency for confirmation that it will support a regulatory filing for TEVG. Every 6 months throughout the study, data will be shared with RM Innovation Catalyst, with a final locked data set no later than six months prior to the end of the award. Data from our long-term follow up policy will be made available on an annual basis if requested by the RM Innovation Catalyst or the NIH.

Kriterier för IPD Sharing Access

De-identified data will be provided to RM Innovation Catalyst. A Clinical Study Report will be submitted to the US FDA following the International Conference on Harmonization E3 Guideline for Industry: Structure and Content of Clinical Study Reports. Summary results of the trial will be submitted to ClinicalTrial.gov within one year of the primary completion date (per regulation and NIH policy). Results of screening tests and subjects participation in the study and ongoing test results will be shared with their primary care physician and/or primary cardiologist if cardiac care is being provided outside of Nationwide Children's Hospital.

IPD-delning som stöder informationstyp

  • STUDY_PROTOCOL
  • SAV
  • CSR

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Ja

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