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A Clinical Study to Investigate the Safety and Immunogenicity of rVSV∆G-SUDV-GP, a Sudan Virus (SUDV) Vaccine for the Prevention of SUDV Disease in Adults in Good General Health

17. juni 2026 oppdatert av: International AIDS Vaccine Initiative

A Phase 1, Randomized, Observer-blind, Placebo-controlled, Dose-escalation Clinical Trial to Evaluate the Safety and Immunogenicity of rVSV∆G-SUDV-GP Vaccine in Adults in Good General Health

A Clinical Study to Investigate the Safety and Immunogenicity of rVSV∆G-SUDV-GP, a Sudan Virus (SUDV) Vaccine for the Prevention of SUDV Disease in Adults in Good General Health.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

This is a Phase 1, Randomized, Observer-blind, Placebo-controlled, Dose-escalation Clinical Trial to Evaluate the Safety and Immunogenicity of rVSVΔG-SUDV-GP Vaccine in Adults in Good General Health. Participants will be screened up to 28 days before Investigational Product (IP) administration and will be followed for 6 months after IP administration. The study will evaluate 4 different dose levels (2 X106 1X107, 2 X 107, 5 X 107) in 4 different participant groups for which enrollment will initiate sequentially. Starting with the lowest dose group, four sentinel participants will be enrolled in a sequential manner with no more than one participant enrolled across all sites per day. A safety review will be performed by the Sponsor after enrollment of the fourth sentinel participant, after which point the remainder of participants will be enrolled in group 1. In addition, a safety assessment will be performed by the Sponsor before opening enrollment in group 2. This assessment will be performed after enrollment of the 9th participant in group 1. The same sentinel dosing followed by safety reviews approach will be repeated for each group at each dose level.[

Studietype

Intervensjonell

Registrering (Antatt)

112

Fase

  • Fase 1

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Forente stater
    • District of Columbia
      • Washington D.C., District of Columbia, Forente stater, 20037
        • Rekruttering
        • George Washington University
        • Ta kontakt med:
        • Ta kontakt med:
        • Hovedetterforsker:
          • David Diemert, MD
    • Kansas
      • Lenexa, Kansas, Forente stater, 66219
        • Rekruttering
        • Johnson County Clin-Trials
        • Ta kontakt med:
    • Massachusetts
      • Boston, Massachusetts, Forente stater, 02115
        • Rekruttering
        • Brigham and Women's Hospital
        • Hovedetterforsker:
          • Lindsey Baden, MD
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen

Tar imot friske frivillige

Ja

Beskrivelse

Inclusion Criteria

  1. Adults in good general health
  2. Participants who are 18 to 50 years of age
  3. Willing to comply with the requirements of the protocol and available for follow-up for the planned duration of the study
  4. In the opinion of the PI, participant understands risks and written informed consent will be obtained before any study-related procedures are performed
  5. Willing to undergo HIV testing, risk reduction counseling, and receive HIV test results
  6. All sexually active participants must consistently use male or female condoms with all sexual partners for 3 months following IP administration
  7. All individuals of childbearing potential engaging in sexual activity that could lead to pregnancy must commit to use an effective method of contraception from at least 2 weeks before and continue until 3 months following receipt of vaccine/placebo
  8. All individuals of childbearing potential must be willing to undergo urine pregnancy tests at time points indicated in the Schedule of Activities (SOA)
  9. All participants must be willing to forgo donation of blood or any other tissues from screening onward throughout the course of the study

Exclusion Criteria

  1. Any clinically relevant abnormality on history or examination including:

    history of immunodeficiency or autoimmune disease history of splenectomy history of malignancy in the past 5 years use of corticosteroids, immunosuppressive, anticancer, or other medications considered significant by the Investigator within the previous 6 months body mass index (BMI) ≥ 35.0 kg/m2

  2. Any clinically significant acute or chronic medical condition that is considered progressive or in the opinion of the Investigator makes the participant unsuitable for participation in the study
  3. Individuals who are pregnant or breastfeeding
  4. Bleeding disorder that was diagnosed by a physician
  5. Infectious disease: Confirmed HIV-1 or HIV-2 infection, chronic active hepatitis B infection, current hepatitis C infection, active syphilis, or medically diagnosed long COVID 19 Syndrome. Also excluded are participants with active, serious infections requiring parenteral antibiotic, antiviral, or antifungal therapy within 30 days prior to enrollment.
  6. Any abnormal laboratory parameters at screening per protocol.
  7. Receipt of live attenuated influenza vaccine within the previous 14 days, any other live attenuated vaccine within the previous 30 days or planned receipt within 30 days after vaccination with IP; or receipt of non-live attenuated vaccine within the previous 14 days or planned receipt within 14 days after vaccination with IP, including COVID-19 vaccines
  8. Receipt of blood transfusion or blood-derived products within the previous 3 months
  9. Prior potential exposure to Marburg Virus, or a medical history of hemorrhagic fever
  10. Prior receipt of any VSV-vectored vaccine, any Marburg vaccine, or any vaccine containing a filovirus component. Prior receipt of monoclonal or polyclonal antibodies directed against Marburg or other filovirus in the past 12 months
  11. Current participation in another clinical trial, within 3 months prior to enrollment.
  12. History of severe local or systemic reactogenicity to vaccines, or severe allergy to food or medications, and/or allergy to any component of this vaccine.
  13. Neuropsychiatric condition or substance abuse that compromises safety of the participant and precludes compliance with the protocol

  14. Current or planned occupational (medical care, childcare) or household contact (residing in the same household) from screening through 3 months after IP administration with any individual at increased risk from exposure to a live viral vaccine including infants ≤ 1 year of age, adults

    ≥75 years of age, or immunocompromised individuals.

  15. In the opinion of the PI, it is not in the best interest of the participant to participate in the trial
  16. A history of long-term treatment (≥ 4 weeks) for arthritis
  17. Participants currently experiencing a rash or who have a history of severe, chronic, or frequent rash will be excluded.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: rVSVΔG-SUDV-GP
Biologisk: rVSVΔG-SUDV-GP
rVSVΔG-SUDV-GP
Placebo komparator: Placebo
Placebo/Diluent
Annen: Placebo
Placebo

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Safety and tolerability of rVSVΔG-SUDV-GP vaccination: solicited reactogenicity
Tidsramme: 14 Days
Occurrence, onset, duration, and severity of local and systemic solicited adverse events within 14 days following vaccination
14 Days
Safety and tolerability of rVSVΔG-SUDV-GP vaccination: unsolicited reactogenicity
Tidsramme: 28 Days
Occurrence, onset, duration, severity, and relationship to IP of unsolicited adverse events, including safety laboratory parameters, within 28 days following vaccination
28 Days
Safety and tolerability of rVSVΔG-SUDV-GP vaccination: SAEs and AESIs
Tidsramme: 7 Months
Occurrence, onset, duration, severity, and relationship to IP of SAEs and AESIs throughout the study period
7 Months

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
SUDV-GP-specific serum antibody responses
Tidsramme: Throughout the study, up to 6 months after immunization
Proportion of participants with binding antibody responses to SUDV-GP
Throughout the study, up to 6 months after immunization
SUDV-GP-specific serum antibody responses magnitude and duration
Tidsramme: Throughout the study, up to 6 months after immunization
Magnitude and duration of binding antibody to SUDV-GP throughout the full study period (1 week, 2 weeks, 4 weeks, 2 months, 3 months, 6 months after immunization)
Throughout the study, up to 6 months after immunization
SUDV-GP-specific serum antibody neutralization
Tidsramme: Throughout the study, up to 6 months after immunization
Proportion of participants with neutralizing antibody against Sudan virus as measured by PRNT assay
Throughout the study, up to 6 months after immunization
SUDV-GP-specific serum antibody magnitude and duration of neutralization
Tidsramme: Throughout the study, up to 6 months after immunization
Magnitude and duration of neutralizing antibody against Marburg virus as measured by PRNT assay throughout the full study period (1 week, 2 weeks, 4 weeks, 2 months, 3 months, 6 months after immunization)
Throughout the study, up to 6 months after immunization

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

International AIDS Vaccine Initiative

Samarbeidspartnere

Biomedical Advanced Research and Development Authority

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

8. mai 2026

Primær fullføring (Antatt)

1. april 2027

Studiet fullført (Antatt)

1. april 2027

Datoer for studieregistrering

Først innsendt

27. april 2026

Først innsendt som oppfylte QC-kriteriene

27. april 2026

Først lagt ut (Faktiske)

4. mai 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

18. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

17. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • IAVI C109

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

UBESLUTTE

IPD-planbeskrivelse

IPD sharing plans are currently under internal discussion.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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