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Langsigtet sikkerhed og kliniske resultater af Livmarli hos patienter med Alagille syndrom (LEAP) (LEAP)

10. november 2026 opdateret af: Mirum Pharmaceuticals, Inc.

The objective of this 5-year, prospective, observational cohort study is to evaluate the long-term safety and clinical outcomes of patients with Alagille syndrome (ALGS) or Progressive familial intrahepatic cholestasis (PFIC) treated with Livmarli.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Livmarli® is a novel, minimally absorbed, pharmacological product that inhibits the ileal bile acid transporter (IBAT) in the terminal ileum, leading to reduced levels of bile acids. Livmarli (maralixibat) has been developed by Mirum Pharmaceuticals and was the first treatment approved by the US Food and Drug Administration (FDA) for the treatment of cholestatic pruritus in patients 3 months of age and older with Alagille syndrome (ALGS). Subsequently, Livmarli was approved by the FDA for the treatment of cholestatic pruritus in patients 12 months of age and older with Progressive familial intrahepatic cholestasis (PFIC). To be eligible for the study, participants must meet the following criteria:

  • A clinically and/or genetically confirmed ALGS diagnosis or PFIC diagnosis
  • Prescribed Livmarli

Undersøgelsestype

Observationel

Tilmelding (Anslået)

70

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • California
      • Los Angeles, California, Forenede Stater, 90027
        • Rekruttering
        • Children's Hospital Los Angeles CHLA
        • Kontakt:
          • George Yanni
        • Kontakt:
        • Ledende efterforsker:
          • Rohit Kohli
    • Colorado
      • Aurora, Colorado, Forenede Stater, 80045
        • Rekruttering
        • Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics and the Digestive Health Institute, Children's Hospital of Colorado and University of Colorado
        • Kontakt:
        • Ledende efterforsker:
          • Shikha S. Sundaram
    • Georgia
      • Atlanta, Georgia, Forenede Stater, 30322
        • Rekruttering
        • Children's Healthcare of Atlanta - Emory University School of Medicine
        • Kontakt:
        • Ledende efterforsker:
          • Chrissy Lopez
    • Missouri
      • Kansas City, Missouri, Forenede Stater, 64108
        • Rekruttering
        • Children's Mercy Kansas City, Department of Gastroenterology, Section of Hepatology
        • Kontakt:
        • Ledende efterforsker:
          • Ryan T. Fischer
    • Oregon
      • Portland, Oregon, Forenede Stater, 97239
        • Rekruttering
        • Oregon Health and Science University, Division of Pediatric Gastroenterology, Department of Pediatrics
        • Kontakt:
        • Ledende efterforsker:
          • Henry C. Lin
    • Pennsylvania
      • Philadelphia, Pennsylvania, Forenede Stater, 19104
        • Rekruttering
        • Children's Hospital of Philadelphia
        • Kontakt:
        • Ledende efterforsker:
          • Kathleen Loomes, MD
      • Pittsburgh, Pennsylvania, Forenede Stater, 15260
        • Rekruttering
        • Children Hospital of Pittsburgh
        • Kontakt:
        • Kontakt:
          • James E. Squires
        • Ledende efterforsker:
          • Simon Horslen
    • Utah
      • Salt Lake City, Utah, Forenede Stater, 84112
        • Rekruttering
        • University of Utah, Division of Pediatric Gastroenterology, Hepatology and Nutrition
        • Kontakt:
        • Ledende efterforsker:
          • M. Kyle Jensen

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

All patients with ALGS and PFIC prescribed Livmarli at a participating study center and who consent/assent to participation (if required by the local IRB/IEC) will be included in the study at the discretion of the center investigator.

Beskrivelse

Inclusion Criteria:

  • A clinically and/or genetically confirmed ALGS diagnosis or PFIC diagnosis
  • Participant prescribed Livmarli

Exclusion Criteria:

  • Refusal to provide informed consent/assent (if required by the local IRB)
  • Previously or currently on Livmarli through participation in a clinical study or expanded access program
  • Participants who have previously received an SBD or LT
  • Any condition or abnormalities that, in the opinion of the investigator, may interfere with the participant participating in or completing the study
  • Participants who have received an investigational drug within 30 days of the first dose of Livmarli

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: PROSPECTIVE

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Alagille syndrome (ALGS)
  • A clinically and/or genetically confirmed ALGS diagnosis
  • Participant prescribed Livmarli

The recommended dosage is 380 mcg/kg once daily.

Andre navne:
  • Maralixibat

The recommended dosage us 570 mcg/kg twice daily.

Andre navne:
  • Maralixibat
Progressive familial intrahepatic cholestasis (PFIC)
  • A clinically and/or genetically confirmed PFIC diagnosis
  • Prescribed Livmarli

The recommended dosage is 380 mcg/kg once daily.

Andre navne:
  • Maralixibat

The recommended dosage us 570 mcg/kg twice daily.

Andre navne:
  • Maralixibat

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Incidence of Long-Term Clinical Outcomes
Tidsramme: Long-term clinical outcomes (SBD, LT, portal hypertension, all-cause mortality) up to 180 days after discontinuation of Livmarli will be recorded.

The dates, and reasons for the following first events (of this first endpoint) will be collected: Surgical Biliary Diversion (SBD), Liver Transplant (LT), and all-cause mortality. In addition, manifestations of clinically evident portal hypertension (CEPH) will be captured during each interval event assessments.

Long-term clinical outcomes (SBD, LT, portal hypertension, all-cause mortality) up to 180 days after discontinuation of Livmarli will be recorded.
Liver Transplant Indication and Waitlist Status
Tidsramme: LT waitlist status will be collected at enrollment and every 6 months for 5 years.

LT waitlist status will be collected, including when placed on or removed from LT waitlist.

LT waitlist status will be collected at enrollment and every 6 months for 5 years.
Assessment of Growth and Development
Tidsramme: Weight (kilograms) and height (centimeters) z-scores will be collected every year for 5 years.

Height and weight will be collected both at the time the participant started Livmarli and at the time of enrollment in the study. Subsequent weight will be collected for up to 5 years.

Weight z-score (kilograms) and height z-score (centimeters) will be assessed and reported every year for 5 years.

Weight (kilograms) and height (centimeters) z-scores will be collected every year for 5 years.
Incidence of Clinical Events Potentially Related to Fat-Soluble Vitamin Deficiencies and Their Long-Term Sequelae
Tidsramme: The incidence of events will be assessed and reported every year for 5 years.

Bleeding events (including all gastrointestinal [GI] or non-GI bleeding requiring hospitalization, emergency department care, or transfusion) and fracture events will be reported.

The incidence of events will be assessed and reported every year for 5 years.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

21. september 2023

Primær færdiggørelse (Anslået)

20. september 2028

Studieafslutning (Anslået)

20. september 2030

Datoer for studieregistrering

Først indsendt

11. december 2023

Først indsendt, der opfyldte QC-kriterier

21. december 2023

Først opslået (Faktiske)

5. januar 2024

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

13. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. november 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • MRX-310

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .