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Sequential PD-1 Antibody and Pegylated Interferon Therapy for Nucleos(t)Ide Analogue-suppressed Chronic Hepatitis B

2 september 2026 uppdaterad av: Beijing 302 Hospital

Safety and Efficacy of Sequential Treatment With a PD-1 Antibody and Pegylated Interferon-α in Nucleos(t)Ide Analogue-Suppressed Patients With Chronic Hepatitis B

This is a prospective, multicenter, randomized, open-label controlled clinical trial designed to evaluate the efficacy and safety of a sequential treatment strategy incorporating a PD-1 antibody and pegylated interferon-α (Peg-IFNα) in patients with chronic hepatitis B receiving stable nucleos(t)ide analogue (NA) therapy.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Intervention / Behandling

Detaljerad beskrivning

A total of 60 participants will be randomly assigned in a 1:1 ratio to an experimental group or a control group. Participants in the experimental group will initially receive a PD-1 antibody in combination with continued NA therapy, followed by a period of triple therapy with the PD-1 antibody, Peg-IFNα, and NAs. The PD-1 antibody will then be discontinued, while Peg-IFNα plus NAs will be continued through Week 48. Participants in the control group will receive Peg-IFNα plus continued NA therapy from baseline through Week 48.

Studietyp

Interventionell

Inskrivning (Beräknad)

60

Fas

  • Inte tillämpbar

Kontakter och platser

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

Studiekontakt

Studieorter

  • Kina
      • Jinan, Kina
        • Shandong Public Health Clinical Center
        • Kontakt:
          • Xiaoying Li
      • Taiyuan, Kina
        • The Third People's Hospital of Taiyuan
        • Kontakt:
          • Ying Guo
      • Xi'an, Kina
        • The First Affiliated Hospital of Xi'an Jiaotong University
        • Kontakt:
          • Tianyan Chen
      • Xi'an, Kina
        • The Second Affiliated Hospital of Xi'an Jiaotong University
        • Kontakt:
          • Mei Li

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

  • Vuxen

Tar emot friska volontärer

Nej

Beskrivning

Inclusion Criteria:

  • 1. Aged 18-55 years;
  • 2.Chronic hepatitis B patients with clear diagnosis of hematology, etiology and clinical (for example: HBsAg positive for more than 6 months);
  • 3. Treatment with NAs(ETV, TDF or TAF)at least 1 years and continue NAs therapy during screening;
  • 4.Patients with HBV DNA negative, HBeAg negative, HBsAg quantification ≤ 500IU/ml .

Exclusion Criteria:

  • 1. Cirrhosis;
  • 2.platelet count < 90×10^9/L, WBC count < 3.0×10^9/L, ALT /AST> ULN (40U/L), total bilirubin > 2ULN;
  • 3.History of or suspicion of hepatocellular carcinoma
  • 4.Patients received interferon therapy within 6 months;
  • 5.Patients received immunosuppressive therapy or other therapy influenced study within 6 months;
  • 6.Pregnancy
  • 7.Hepatitis A, hepatitis C, hepatitis D, HIV infection or other active infections;
  • 8.Presence of severe uncontrolled diseases of respiratory, cardiovascular or other organ systems;
  • 9.Alcohol or drug abuse/dependence;
  • 10.Other conditions rendering subjects ineligible for enrollment, including but not limited to absolute contraindications to interferon therapy, known hypersensitivity to any study drug or their excipients, and anticipated poor compliance with treatment and follow-up procedures.

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: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Sequential PD-1 Antibody and Peg-IFNα
Participants will continue background nucleos(t)ide analogue therapy throughout the study. During Weeks 0-12, participants will receive the PD-1 antibody plus NAs. Peg-IFNα will be added at Week 12, resulting in triple therapy with the PD-1 antibody, Peg-IFNα, and NAs during Weeks 12-24. After completion of PD-1 antibody treatment at Week 24, participants will continue Peg-IFNα plus NAs through Week 48.
Läkemedel: Sintilimab
Sintilimab will be administered intravenously at a dose of 1.0 mg/kg at Weeks 0, 6, 12, and 18, for a total of four doses.
Läkemedel: Pegylated Interferon-α 2b

Peg-IFNα will be administered subcutaneously once weekly from Week 12 through Week 48.

Dose: 135 μg or 180 μg, according to the study protocol. When sintilimab and Peg-IFNα are scheduled during the same treatment period, administration of the two drugs will be separated by at least 72 hours.

Läkemedel: Nucleos(t)ide Analogues
Background nucleos(t)ide analogue therapy with entecavir, tenofovir disoproxil fumarate, or tenofovir alafenamide will be continued throughout the study.
Andra namn:
  • TDF
  • ETV
  • TAF
Läkemedel: Pegylated Interferon-α 2b

Peg-IFNα will be administered subcutaneously once weekly from Week 0 through Week 48.

Dose: 135 μg or 180 μg, according to the study protocol.
Aktiv komparator: Peg-IFNα
Participants will receive Peg-IFNα in combination with continued background nucleos(t)ide analogue therapy from baseline through Week 48.
Läkemedel: Pegylated Interferon-α 2b

Peg-IFNα will be administered subcutaneously once weekly from Week 12 through Week 48.

Dose: 135 μg or 180 μg, according to the study protocol. When sintilimab and Peg-IFNα are scheduled during the same treatment period, administration of the two drugs will be separated by at least 72 hours.

Läkemedel: Nucleos(t)ide Analogues
Background nucleos(t)ide analogue therapy with entecavir, tenofovir disoproxil fumarate, or tenofovir alafenamide will be continued throughout the study.
Andra namn:
  • TDF
  • ETV
  • TAF
Läkemedel: Pegylated Interferon-α 2b

Peg-IFNα will be administered subcutaneously once weekly from Week 0 through Week 48.

Dose: 135 μg or 180 μg, according to the study protocol.

Vad mäter studien?

Primära resultatmått

Resultatmått
Tidsram
The rate of patients with HBsAg loss at Weeks 24 and 48
Tidsram: 48weeks
48weeks
Incidence of treatment-emergent adverse events/serious adverse events
Tidsram: 48weeks
48weeks

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The rate of patients with HBsAg decline > 1log(IU/ml) at Weeks 24 and 48
Tidsram: 48 weeks
48 weeks
The rate of patients with HBsAb positive at Weeks 24 and 48.
Tidsram: 48 weeks
48 weeks
The concentration of HBcrAg at baseline, at weeks 12, 24 and 48.
Tidsram: 48 weeks
Evaluate the level of serum HBcrAg at baseline, at weeks 12,24 and 48.
48 weeks
The concentration of pgRNA at baseline, at weeks 12,24 and 48.
Tidsram: 48 weeks
Evaluate the level of serum pgRNA at baseline, at weeks 12,24 and 48.
48 weeks
The concentration of anti-HBc at baseline, at weeks 12,24 and 48.
Tidsram: 48 weeks
Evaluate the level of serum anti-HBc at baseline, at weeks 12,24 and 48.
48 weeks
Frequency and function of peripheral T-lymphocytes assessed by flow cytometry, FluoroSpot and ELISpot, at weeks 12,24 and 48.
Tidsram: 48 weeks
The frequency (unit: percentage of peripheral lymphocytes) and function of peripheral T-lymphocytes will be evaluated using flow cytometry, FluoroSpot, and ELISpot assays.
48 weeks
Frequency and function of peripheral B-lymphocytes assessed by flow cytometry, FluoroSpot and ELISpot,at weeks 12,24 and 48.
Tidsram: 48 Weeks
The frequency (unit: percentage of peripheral lymphocytes) and function of peripheral B-lymphocytes will be evaluated using flow cytometry, FluoroSpot, and ELISpot assays.
48 Weeks
Frequency and function of peripheral NK-lymphocytes assessed by flow cytometry, FluoroSpot and ELISpot at weeks 12,24 and 48.
Tidsram: 48 weeks
The frequency (unit: percentage of peripheral lymphocytes) and function of peripheral NK-lymphocytes will be evaluated using flow cytometry.
48 weeks

Samarbetspartners och utredare

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

Sponsor

Beijing 302 Hospital

Utredare

  • Huvudutredare: Junliang Fu, Beijing 302 Hospital

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 (Beräknad)

1 september 2026

Primärt slutförande (Beräknad)

1 september 2029

Avslutad studie (Beräknad)

1 september 2029

Studieregistreringsdatum

Först inskickad

25 augusti 2026

Först inskickad som uppfyllde QC-kriterierna

2 september 2026

Första postat (Faktisk)

9 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

9 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

2 september 2026

Senast verifierad

1 augusti 2026

Mer information

Termer relaterade till denna studie

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • KY-2026-7-122-2

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

NEJ

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