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Et fase 2-studie til evaluering af JCXH-105, en SrRNA-baseret herpes zoster-vaccine

3. november 2026 opdateret af: Immorna Biotherapeutics, Inc.

En fase 2, randomiseret, tredobbelt blindet, aktiv-kontrolleret undersøgelse til vurdering af sikkerheden og immunogeniciteten af ​​en undersøgelsesvaccine mod herpes zoster (HZ), JCXH-105, hos raske forsøgspersoner ≥ 50 år gamle

The goal of this clinical trial is to assess the safety and immunogenicity of an srRNA-based vaccine, JCXH-105, in the prevention of Herpes Zoster (Shingles).

Subjects will be randomized to receive either JCXH-105 or Shingrix.

Studieoversigt

Status

Aktiv, ikke rekrutterende

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

This Phase 2 study plans to enroll a total of 460 subjects.

This will be an active-controlled study in healthy male and/or female subjects 50 years of age or older. Subjects will be randomized 1:1 to receive either JCXH-105 or Shingrix. The study vaccine will be administered in two doses approximately 2 months apart. The subject will receive a single intramuscular (IM) injection of JCXH-105 or Shingrix on Day 1 (Dose 1) and again on Day 61 ± 7 days (Dose 2). For each subject, Dose 1 and Dose 2 are the same study vaccine based on randomization on Day 1. A total of 460 subjects will be enrolled into this trial and vaccinated with either JCXH-105 (n=230) or Shingrix (n=230).

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

467

Fase

  • Fase 2

Kontakter og lokationer

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

Studiesteder

    • Arizona
      • Tucson, Arizona, Forenede Stater, 85704
        • Noble Clinical Research
    • California
      • Long Beach, California, Forenede Stater, 90805
        • Long Beach Research Institute
    • Illinois
      • Chicago, Illinois, Forenede Stater, 60652
        • DM Clinical Research - Chicago
    • Nebraska
      • Omaha, Nebraska, Forenede Stater, 68114
        • Quality Clinical Research
    • New Jersey
      • Jersey City, New Jersey, Forenede Stater, 07306
        • DM Clinical Research - New Jersey
    • South Carolina
      • Charleston, South Carolina, Forenede Stater, 29407
        • Delricht Research
    • Texas
      • Prosper, Texas, Forenede Stater, 75078
        • Delricht Research
      • Sugar Land, Texas, Forenede Stater, 77478
        • DM Clinical Research - Sugarland

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

50 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Key Inclusion Criteria:

  • Sex: Male or female; female subjects may be of childbearing potential, of nonchildbearing potential, or postmenopausal.
  • Age: ≥ 50 years of age at screening.
  • Status: Healthy subjects.
  • Subjects must agree to not be vaccinated with any HZ vaccine while participating in this study.
  • Subjects must agree to not be vaccinated with any RNA-based vaccines (e.g., Spikevax, Comirnaty, etc.) 30 days before Dose 1 through 30 days after Dose 2 (a 4-month period).

Key Exclusion Criteria:

  • Subjects with a history of HZ within the past 10 years or current diagnosis of HZ.
  • Previous vaccination against HZ.
  • Subjects with any respiratory illness deemed clinically relevant by the Investigator within the past month OR hospitalization >24 hours for any reason within the past month prior to the first vaccine administration (JCXH-105 or Shingrix).
  • Subjects who are acutely ill or febrile with body temperature ≥ 38.0º Celsius/100.4º Fahrenheit 72 hours prior to or at the Screening visit or on Day 1 pre-dose. Subjects meeting this criterion may be rescheduled within an allowable window with approval from the Sponsor.
  • Subjects with history or current diagnosis of congenital or acquired immunodeficiency/immunocompromising/immunosuppressive conditions, asplenia, or recurrent severe infections. Certain immune-mediated conditions (e.g., Hashimoto thyroiditis) that are well controlled and stable are allowed.
  • Subjects with history of myocarditis or pericarditis, or with AEs (including anaphylaxis and severe hypersensitivity) after mRNA vaccination that are in nature and severity beyond the common expected AEs and necessitating medical intervention.
  • Subjects who received any non-live vaccine within 14 days prior to Day 1 (first dose of JCXH-105 or Shingrix).
  • Subjects who received within 28 days prior to Day 1 (first dose of JCXH-105 or Shingrix): (1) Any live vaccine, (2) Immunomodulators or immune-suppressive medication, (3) Granulocyte or granulocyte-macrophage colony-stimulating factor, (4) Three or more consecutive days of systemic corticosteroids. Note: subjects on stable-dose steroid replacement (for chronic disease such as iatrogenic deficiency) of prednisone ≤10 mg/day or equivalent are allowed and (5) Other investigational agents or devices.
  • Subjects receiving systemic antiviral therapy.
  • Subjects with a positive screening test for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibodies, anti-human HIV-1 and 2 antibodies, or syphilis.
  • Subjects with a positive screening test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Investigational Product

Participants randomized to this arm will be given the investigational product (JCXH-105).

IM injection

Aktiv komparator: Active Control

Participants randomized to this arm will be given the FDA approved Shingrix.

IM injection

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
SAE Frequency
Tidsramme: Day 1 - Day 241 (Week 34)

Frequency of SAEs characterized by type, severity, duration, and relationship to the vaccine recorded from Day 1 post-vaccine administration through follow-up completion.

Day 1 - Day 241 (Week 34)
Solicited local reaction frequency
Tidsramme: Day 1 - Day 7 (After Dose 1), Day 1 - Day 7 (After Dose 2)

Occurrence of solicited local injection site reactions characterize by frequency, severity, and duration within 7 days after each vaccine administration.

Day 1 - Day 7 (After Dose 1), Day 1 - Day 7 (After Dose 2)
Solicited systemic reaction frequency
Tidsramme: Day 1 - Day 7 (After Dose 1), Day 1 - Day 7 (After Dose 2)

Occurrence of solicited systemic reactions characterize by frequency, severity, and duration within 7 days after each vaccine administration.

Day 1 - Day 7 (After Dose 1), Day 1 - Day 7 (After Dose 2)
AE Frequency
Tidsramme: Day 1 - Day 241 (Week 34)

Adverse events (AEs) including unsolicited AEs and any AEs leading to discontinuation of study vaccine or withdrawal from the study, characterized by frequency, severity, duration, and relationship to the vaccine from Day 1 post-vaccine administration through follow-up completion.

Day 1 - Day 241 (Week 34)
AESIs Frequency
Tidsramme: Day 1 - Day 241 (Week 34)

AESIs characterized by frequency, severity, duration, and relationship to the vaccine from Day 1 post-vaccine administration through follow-up completion.

Day 1 - Day 241 (Week 34)
Medically Attended AE Frequency
Tidsramme: Day 1 - Day 241 (Week 34)

Medically attended AEs (MAAEs) characterized by frequency, severity, duration, and relationship to the vaccine from Day 1 post-vaccine administration through follow-up completion.

Day 1 - Day 241 (Week 34)
Immune-Mediated Adverse Events of Special Interest Frequency
Tidsramme: Day 1 - Day 241 (Week 34)

Immune-mediated adverse events of special interest (imAESIs) characterized by frequency, severity, duration, and relationship to the vaccine (JCXH-105 or Shingrix) recorded from Day 1 post-vaccine administration through follow-up completion.

Day 1 - Day 241 (Week 34)
gE-Specific CD4+ T cell Response Rate
Tidsramme: Day 1 - Day 89 (Week 13)

Response Rate is defined at the percentage of subjects with ≥ 2 folds increase of gE-specific CD4+ T cells expressing 2 or more markers of activation (IFN-γ, IL-2, TNFα, and CD40L) in PBMCs analyzed with flow cytometry with ICS on Day 89 as compared to baseline (Day 1 pre-dose).

Day 1 - Day 89 (Week 13)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Cellular immunogenicity of JCXH-105
Tidsramme: Day 1 - Day 241 (Week 34)

Frequency of glycoprotein E (gE)-specific CD4+ T cells expressing 2 or more markers of activation (IFN-γ, IL-2, TNF-α, and CD40L) in PBMCs analyzed by flow cytometry with ICS on Day 29, Day 89, and Day 241 as compared to baseline (Day 1 pre-dose).

Day 1 - Day 241 (Week 34)

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Cellular Immunogenicity of JCXH-105
Tidsramme: Day 1 - Day 241 (Week 34)

Frequency of gE-specific CD8+ T cells expressing 2 or more markers of activation (IFN-γ, IL-2, TNF-α, and CD40L) in PBMCs analyzed by flow cytometry on Day 29, Day 89, and Day 241 as compared to baseline (Day 1 pre-dose).

Day 1 - Day 241 (Week 34)
Humoral immunogenicity of JCXH-105
Tidsramme: Day 1 - Day 241 (Week 34)

Changes in serum of anti-gE-specific antibody geometric mean titers (GMTs) analyzed with enzyme-linked immunosorbent assay (ELISA) on Day 29, Day 89, and Day 241 as compared to baseline (D1 pre-dose).

Day 1 - Day 241 (Week 34)

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

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)

16. oktober 2024

Primær færdiggørelse (Faktiske)

19. februar 2026

Studieafslutning (Anslået)

1. marts 2027

Datoer for studieregistrering

Først indsendt

29. august 2024

Først indsendt, der opfyldte QC-kriterier

29. august 2024

Først opslået (Faktiske)

3. september 2024

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

3. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • JCXH-105-021

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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