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Study of Seladelpar and Cilofexor in Participants With Primary Biliary Cholangitis

23. oktober 2026 opdateret af: Gilead Sciences

A Phase 2 Proof-of-Concept Study With a Randomized, Double-Blind, Placebo-Controlled Period, Followed by an Active Treatment Extension Period to Assess the Safety and Efficacy of Seladelpar and Cilofexor in Combination for Primary Biliary Cholangitis

The goal of this clinical study is to learn more about the combination of study drugs seladelpar and cilofexor. The study will assess, the safety, tolerability, and effectiveness of the combination drugs versus both seladelpar alone and placebo, in participants with primary biliary cholangitis (PBC).

The primary objective of this study is to determine whether the combination of seladelpar + cilofexor leads to greater alkaline phosphatase (ALP) reduction than seladelpar alone and describe the safety and tolerability of seladelpar + cilofexor.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

132

Fase

  • Fase 2

Kontakter og lokationer

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

Studiekontakt

Studiesteder

    • Colorado
      • Colorado Springs, Colorado, Forenede Stater, 80907
        • Rekruttering
        • Peak Gastroenterology Associates
    • Florida
      • Lakewood Rch, Florida, Forenede Stater, 34211
        • Rekruttering
        • Florida Research Institute
    • Georgia
      • Atlanta, Georgia, Forenede Stater, 30327
        • Rekruttering
        • Digestive Healthcare of Georgia
    • Tennessee
      • Johnson City, Tennessee, Forenede Stater, 37604
        • Rekruttering
        • GI Associates of Northeast Tennessee

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

18 år til 75 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Key Inclusion Criteria:

  • Have a diagnosis of primary biliary cholangitis (PBC) as defined by a history of any 2 of the following criteria:

    1. ALP above 1.0 × the ULN for at least 6 months
    2. Positive antimitochondrial antibody titer (> 1:40 on immunofluorescence or M2 positive by enzyme-linked immunosorbent assay) or positive PBC-specific antinuclear antibodies
    3. Documented liver biopsy results consistent with PBC
  • Used ursodeoxycholic acid (UDCA) for the past 12 months (stable dose for > 6 months prior to screening), or intolerant to UDCA (last dose of UDCA > 90 days prior to screening)

  • Have an ALP ≥ 1.67 × ULN at screening

  • Have a negative serum pregnancy test at screening

Key Exclusion Criteria:

  • Have other causes of liver disease including viral, alcoholic, autoimmune, and metabolic associated steatohepatitis (MASH).
  • Cirrhosis with Child-Pugh Score ≥ 7, corresponding to Class B or C. Individuals with compensated cirrhosis (ie, Child-Pugh Class A) are allowed if they meet all other criteria.
  • Have evidence of portal hypertension or clinically important hepatic decompensation (historic or current), including but not limited to: hepatic encephalopathy, known esophageal or gastric varices, history of liver transplantation, current placement on liver transplant list, Model for End Stage Liver Disease score ≥ 12, ascites, spontaneous bacterial peritonitis, hepatorenal syndrome.
  • Have previous exposure to seladelpar or cilofexor
  • Used obeticholic acid, fenofibrate, bezafibrate, elafibranor, pemafibrate, or saroglitazar within 6 weeks (42 days, inclusive) of screening date
  • Require or expect to require treatment with ≥ 5 mg prednisone (or systemic equivalents) for > 2 weeks during the study
  • Are on any systemic drug for antipruritic treatment that has required a dose adjustment in the 30 days before screening, or initiated a systemic antipruritic drug in the 30 days before screening

Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Seladelpar (SEL) 10 mg + Placebo-to-Match (PTM) Cilofexor (CILO) Dose A + CILO Dose B

Participants will receive a dose of SEL 10 mg capsule along with PTM CILO Dose A tablets and CILO Dose B tablets, once daily up to 24 weeks.

At completion of Week 24, participants will continue in an Active Treatment Extension (ATE) Period, during which they will receive SEL 10 mg along with either CILO Dose A or Dose B at the original randomized dose in a blinded fashion, up to Week 312.

Capsule administered orally

Tablet administered orally

Tablet administered orally

Eksperimentel: SEL 10 mg + CILO Dose A + PTM CILO Dose B

Participants will receive a dose of SEL 10 mg capsule along with CILO Dose A tablets and PTM CILO Dose B tablets, once daily up to 24 weeks.

At completion of Week 24, participants will continue in an ATE Period, during which they will receive SEL 10 mg along with either CILO Dose A or Dose B at the original randomized dose in a blinded fashion, up to Week 312.

Capsule administered orally

Tablet administered orally

Tablet administered orally

Aktiv komparator: SEL 10 mg + PTM CILO Dose A + PTM CILO Dose B

Participants will receive a dose of SEL 10 mg capsule along with PTM CILO Dose A tablets and PTM CILO Dose B tablets, once daily up to 24 weeks.

At completion of Week 24, participants will continue in an ATE Period, during which they will initiate open-label SEL 10 mg and be re-randomized in a 1:1 ratio to receive CILO Dose A or Dose B in a blinded fashion, up to Week 312.

Capsule administered orally

Tablet administered orally

Tablet administered orally

Placebo komparator: PTM SEL 10 mg + PTM CILO Dose A + PTM CILO Dose B

Participants will receive a dose of PTM SEL 10 mg capsule along with PTM CILO Dose A tablets and PTM CILO Dose B tablets once daily up to 24 weeks.

At completion of Week 24, participants will continue in an ATE Period, during which they will initiate open-label SEL 10 mg and be re-randomized in a 1:1 ratio to receive CILO Dose A or Dose B in a blinded fashion, up to Week 312.

Tablet administered orally

Tablet administered orally

Capsule administered orally

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Change From Baseline in Serum Concentration of Alkaline Phosphate (ALP) at Week 24
Tidsramme: Baseline, Week 24
Baseline, Week 24
Percentage of Participants Experiencing Treatment-Emergent Adverse Events (TEAEs)
Tidsramme: First dose up to 30 days post last dose (up to 318 weeks)
First dose up to 30 days post last dose (up to 318 weeks)
Percentage of Participants Experiencing Serious Adverse Events (SAEs)
Tidsramme: First dose up to 30 days post last dose (up to 318 weeks)
First dose up to 30 days post last dose (up to 318 weeks)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Proportion of Participants Achieving the Biochemistry Composite Endpoint at Week 24
Tidsramme: Week 24

Defined as the percentage of participants with ALP < 1.67 × upper limit of normal (ULN), ALP decrease of ≥ 15%, and total bilirubin ≤ 1 × ULN.

Week 24
Proportion of Participants Achieving ALP Normalization at Week 24
Tidsramme: Week 24

ALP Normalization is defined as ALP ≤ 1.0 × ULN.

Week 24
Change From Baseline to Week 24 in Weekly Average Pruritus Numerical Rating Scale (NRS)
Tidsramme: Baseline, Week 24
Baseline, Week 24

Samarbejdspartnere og efterforskere

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

Sponsor

Efterforskere

  • Studieleder: Gilead Study Director, Gilead Sciences

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)

1. oktober 2026

Primær færdiggørelse (Anslået)

1. december 2028

Studieafslutning (Anslået)

1. juni 2034

Datoer for studieregistrering

Først indsendt

21. september 2026

Først indsendt, der opfyldte QC-kriterier

21. september 2026

Først opslået (Faktiske)

25. september 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

27. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

23. oktober 2026

Sidst verificeret

1. oktober 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • GS-US-763-7930
  • 2026-525722-37 (Anden identifikator: EU Trial (CTIS) number)

Plan for individuelle deltagerdata (IPD)

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INGEN

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Ja

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