Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up

Recombinant shingles vaccine for adults with autoimmune rheumatic diseases on single immunomodulator therapy

Official title: Efficacy, Immunogenicity, and Safety of the Recombinant Herpes Zoster Vaccine (RZV) in Patients With Autoimmune Rheumatic Diseases Under Immunomodulators

Run by University of Sao Paulo General Hospital · NCT07280741 · Data updated 2026-11-12

This study will test whether two doses of the recombinant shingles vaccine produce strong, lasting antibody responses and are safe for adults with autoimmune rheumatic diseases who are taking a single immunomodulatory medication like hydroxychloroquine or sulfasalazine.

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Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment200 (estimated)
SponsorUniversity of Sao Paulo General Hospital
Academic / other
Drugs / interventionsmethotrexate, cyclophosphamide, prednisone
Locations1 site (São Paulo, São Paulo)
StatusRecruiting
StartedDecember 2, 2025
Main results expectedJuly 30, 2027
Study endsJuly 30, 2028
Registry record updatedMarch 11, 2026
Trial IDNCT07280741 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (18+) with a diagnosed autoimmune rheumatic disease who are clinically stable and have been on hydroxychloroquine or sulfasalazine monotherapy for at least three months, and who may be on low-dose prednisone as specified, are ideal candidates.

Probably not a fit

People who have already received RZV, had herpes zoster or varicella within the prior 12 months, are on combination immunosuppressive therapy, or have recent disease flare or infection are unlikely to benefit from participation in this protocol.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase IV interventional study enrolls clinically stable adults with autoimmune rheumatic diseases who are on immunomodulatory monotherapy and administers two doses of the adjuvanted recombinant zoster vaccine (RZV). The primary immunogenicity measures are anti-glycoprotein E (anti-gE) antibody titers, including seroconversion rates and geometric mean titers measured six weeks after completing the vaccination schedule. The trial also measures persistence of antibody titers at one year and monitors the incidence of confirmed herpes zoster during follow-up to capture safety and real-world effectiveness. Participants must be stable on monotherapy (e.g., hydroxychloroquine or sulfasalazine) and able to attend clinic visits at the study site.

Why it matters

Potential benefit: If successful, the results could show that RZV gives reliable and lasting protection against shingles for people with autoimmune rheumatic diseases on common single immunomodulators, helping guide vaccination advice.

How similar studies have gone: RZV has demonstrated strong efficacy and immunogenicity in older adults and several immunocompromised populations, but evidence specifically in autoimmune rheumatic disease patients on single immunomodulators is more limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adults aged 18 years or older.
* Diagnosis of an autoimmune rheumatic disease (such as rheumatoid arthritis, systemic lupus erythematosus, axial spondyloarthritis, psoriatic arthritis, systemic sclerosis, Sjögren syndrome, idiopathic inflammatory myopathies, or primary systemic vasculitis) according to validated classification criteria.
* Clinical stability at the time of enrollment, defined as no change in disease-modifying therapy or corticosteroid dose in the preceding four weeks and no evidence of infection or disease flare.
* Current use of hydroxychloroquine or sulfasalazine in monotherapy for at least three months prior to inclusion.
* Can be under prednisone use of 5mg/week.
* Ability and willingness to comply with study procedures and follow-up visits.
* Provision of written informed consent.

Exclusion Criteria:

* Previous vaccination with recombinant zoster vaccine (RZV).
* History of herpes zoster or varicella infection within 12 months before enrollment.
* Concomitant use of systemic immunosuppressive therapy including but not limited to methotrexate, mycophenolate mofetil, azathioprine, cyclophosphamide, biologics, or JAK inhibitors.
* Use of glucocorticoids \>5mg/week.
* Acute febrile illness or active infection at the time of vaccination.
* Pregnancy or breastfeeding.
* Known hypersensitivity to any component of the recombinant zoster vaccine.
* History of Guillain-Barré syndrome.
* Any condition that, in the investigators' judgment, could interfere with study participation or interpretation of results.

Where it's running

  • Hospital das Clínicas
    São Paulo, São Paulo, Brazil
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.