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Herpes Zoster (HZ)Phase 1JCXH-105NCT05871541

A First-in-Human Study to Evaluate JCXH-105, an SrRNA-based Herpes Zoster Vaccine

A Phase 1 study testing JCXH-105 in people with Herpes Zoster (HZ) and Shingles, run by Immorna Biotherapeutics, Inc. at 3 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The goal of this clinical trial is to assess the safety and immunogenicity of a self-replicating (sr) RNA-based vaccine, JCXH-105, in the prevention of Shingles (Herpes Zoster) Participant will be randomized to receive either JCXH-105 or Shingrix. Read more about this study

Who is it for?
Ages 50 to 69 yearsHealthy volunteers can take part
Conditions the study is for
Herpes Zoster (HZ), Shingles, Infectious Disease
What is being tested?
JCXH-105
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
75 participants
Where
3 sitesUnited States
Study dates
26 May 2023to 25 Mar 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 69 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Sex: Male or female; female subjects may be of childbearing potential, of nonchildbearing potential, or postmenopausal.
  • Age: 50 to 69 years of age, inclusive, at screening.
  • Status: Healthy subjects. Note: Healthy status as defined by the absence of evidence of any clinically significant active or chronic disease, in the opinion of the Investigator, following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead electrocardiogram (ECG) recording, hematology, blood chemistry, serology, and urinalysis. Healthy subjects may have stable pre-existing disease defined as disease not requiring significant change in therapy or hospitalization for worsening disease during the 6 weeks prior to enrollment.
  • Subjects must agree to not be vaccinated with any HZ vaccine while participating in this study.
  • All values for hematology and clinical chemistry tests of blood and urine within the normal range OR showing no clinically relevant deviations based on medical history, considering stable pre-existing diseases (see Healthy Subjects above), as judged by the Investigator.

Who cannot join

  • Subjects with a history of HZ or current diagnosis of shingles.
  • 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 with history of myocarditis or pericarditis, or with AEs after mRNA vaccination that are in nature and severity beyond the common expected AEs necessitating medical intervention.
  • Subjects who have received an mRNA-based vaccine (e.g., Spikevax, Comirnaty, etc.) 30 days prior to Day 1.
  • Subjects who received any non-live vaccine within 14 days prior to the first vaccine administration (JCXH-105 or Shingrix).
Show all 12Show fewer
  • Subjects who received within 28 days prior to first vaccine administration (JCXH-105 or Shingrix): (1) Any live vaccine, (2) Immunomodulators or immune-suppressive medication, (3) 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 with active or suspected immunosuppression, immunodeficiency, or autoimmune disease.
  • Subjects receiving systemic antiviral therapy.
  • Subjects with a positive screening test for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibodies, or anti-human HIV-1 and 2 antibodies.
  • Subjects with a positive screening test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
  • Subjects with a known history of active or latent tuberculosis (bacillus tuberculosis).

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • CenExel HRI

    Berlin, New Jersey, 08009

  • CenExel RCA

    Hollywood, Florida, 33024

  • CenExel FCR

    Tampa, Florida, 33613

Other trials in United States

About this study

Official title: A Phase 1 Randomized, Double-Blinded, Active-Controlled, 2-Dose Study to Assess the Safety and Immunogenicity of a Herpes Zoster (HZ) Vaccine, JCXH-105, in Healthy Subjects 50 to 69 Years of Age.

The goal of this clinical trial is to assess the safety and immunogenicity of a self-replicating (sr) RNA-based vaccine, JCXH-105, in the prevention of Shingles (Herpes Zoster)

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

Read the detailed description

This Phase 1 study plans to enroll a total of 75 participants.

Three cohorts with 3 different dose levels of JCXH-105 will be explored and each cohort will enroll 25 participants (20 randomized to JCXH-105 and 5 randomized to Shingrix) for a total of 75 participants. The dose level of JCXH-105 will depend on the time the participant joins the study. Each participant will receive two single intramuscular (IM) injections of study treatment (JCXH-105 or Shingrix) on day 1 and day 61 (±2 days on day 61)

Being tested
JCXH-105, Active Control (Shingrix)
Keywords
srRNA vaccine, Shingles vaccine, Herpes Zoster (HZ) vaccine, Healthy adult participants (aged 50 to 69 years)
Medical subject headings
Herpes Zoster, Communicable Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • JCXH-105Biological

    As IM injection

  • Active Control (Shingrix)Biological

    As IM injection

Study groups in NCT05871541
Study groupRoleWhat they receive
Investigational ProductExperimentalParticipants randomized to this arm will be given the investigational product (JCXH-105).
Receives: Biological: JCXH-105
Active ControlActive comparatorParticipants randomized to this arm will be given the FDA approved Shingrix.
Receives: Biological: Active Control (Shingrix)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. SAE Frequency

    Frequency of SAEs characterized by type, severity, duration, and relationship to the vaccine (JCXH-105 or Shingrix) recorded from Day 1 post-vaccine administration through follow-up completion

    Measured: Day 1 - Day 241

  2. Injection site reaction

    Solicited local injection site reactions characterized by frequency, severity, and duration recorded within 7 days after each vaccine administration (JCXH-105 or Shingrix)

    Measured: 7 days after the first and second vaccination

  3. Solicited systemic reaction frequency

    Solicited systemic adverse reactions characterized by frequency, severity, and duration recorded within 7 days after each vaccine administration (JCXH-105 or Shingrix)

    Measured: 7 days after the first and second vaccination

  4. AE frequency

    Adverse events (AEs) including unsolicited AEs, characterized by type, severity, duration, and relationship to the vaccine (JCXH-105 or Shingrix) recorded from Day 1 post-vaccine administration to within 30 days following each vaccine administration

    Measured: 30 days after the first and second vaccination

  5. Medically attended AE frequency

    Medically attended AEs (MAAEs) characterized by frequency, severity, duration, and relationship to the vaccine (JCXH-105 or Shingrix) recorded from Day 1 post-vaccine administration (JCXH-105 or Shingrix) through follow-up completion

    Measured: Day 1 - Day 241

  6. The frequency of potential immune-mediated adverse events"

    Potential immune-mediated disease (pIMDs) characterized by frequency, severity, duration, and relationship to the vaccine (JCXH-105 or Shingrix) recorded from Day 1 post-vaccine administration (JCXH-105 or Shingrix) through follow-up completion

    Measured: Day 1 - Day 241

Secondary outcomes (1)
  1. Cellular immunogenicity of the JCXH-105 and Shingrix vaccine

    Frequency of glycoprotein E (gE)-specific CD4+ T cells expressing 2 or more markers of activation in peripheral blood mononuclear cells (PBMCs) analyzed with flow cytometry on Day 1 pre-dose (baseline) and Days 15, 31, 75, 91, and 241 (Follow-up visit)

    Measured: Day 1 - Day 241

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 May 2023
  2. Study start26 May 2023
  3. Primary completion25 Mar 2024
  4. Study completion25 Mar 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
75 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05871541
Sponsor's protocol ID
JCXH-105-001
Acronym
JCXH-105
Status last verified
Nov 2023
First submitted
3 May 2023
Last updated
19 Sep 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing JCXH-105 in people with Herpes Zoster (HZ) and Shingles, run by Immorna Biotherapeutics, Inc. at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

SAE Frequency (time frame: Day 1 - Day 241). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Sep 2024.

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