Personalized Neoantigen Vaccine Plus IL-12 (INO-9012) Versus Active Surveillance in Subjects With High-Risk HCC
IMPACT31
IMPACT31: A Randomized Open-label, Multi-center, Phase II Adjuvant Study of a Personalized Neoantigen DNA Vaccine (GNOS-PV02) and Plasmid Encoded IL-12 (INO-9012) Versus Active Surveillance in Subjects With High-Risk HCC
1 other identifier
interventional
90
1 country
1
Brief Summary
This is a randomized, open-label, multi-site Phase II study of a personalized neoantigen DNA vaccine (GNOS-PV02) and plasmid encoded IL-12 (INO-9012) in subjects with histologically or cytologically confirmed diagnosis of HCC based on pathology report, who were eligible to undergo definitive resection, have demonstrated laboratory, radiographic and/or pathologic high-risk criteria for recurrence (described under eligibility), have no evidence of disease (NED) as per MRI approximately 28 days post resection, and are able to provide a tissue sample for personalized neoantigen DNA vaccine development.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Sep 2026
Longer than P75 for phase_2
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 20, 2026
CompletedFirst Posted
Study publicly available on registry
July 23, 2026
CompletedStudy Start
First participant enrolled
September 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2029
Study Completion
Last participant's last visit for all outcomes
June 1, 2032
July 28, 2026
July 1, 2026
3 years
July 20, 2026
July 25, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Recurrence-free survival
RFS is defined as the time from randomization to any recurrence (local, locoregional, regional or distant), occurrence of new primary HCC, as assessed by the investigator, or death due to any cause, whichever occurs first.
Up to 5 years
Secondary Outcomes (3)
Incidence of treatment emergent adverse events (safety and tolerability)
Up to 5 years
Time to extra-hepatic spread or macro-vascular invasion
Up to 5 years
Overall survival
Up to 5 years on study + 3 years follow up
Study Arms (2)
Personalized Immunotherapy for Cancer:
EXPERIMENTALGNOS-PV02 + INO-9012 ID followed by electroporation every 3 weeks for 4 doses, then every 9 weeks (Q9W) until week 104, then every 12 weeks (Q12W) until week 260 followed by 3 years follow-up survival
Standard of Care
NO INTERVENTIONActive Surveillance for 5 years or until recurrence, plus 3 years follow-up survival.
Interventions
GNOS-PV02 + INO-9012 ID followed by electroporation
delivered by intradermal injection and electroporation
cytokine interleukin-12 (IL-12), a vaccine adjuvant
Eligibility Criteria
You may qualify if:
- Written informed consent
- ≥18 years of age
- Histologically or cytologically confirmed diagnosis of HCC (not accepted: fibrolamellar, sarcomatoid, mixed cholangiocarcinoma)
- Child-Pugh Class A liver score
- Documented virology status of hepatitis
- Availability of a representative post-resection tumor tissue sample
- ECOG performance status of 0 or 1
- Adequate organ function
- Women of childbearing potential (WOCBP) and men must be willing to use an adequate method of contraception
You may not qualify if:
- Is currently participating in and receiving study drug or has participated in a study of an investigational agent and received study drug or used an investigation device, within 4 weeks to baseline
- Evidence of residual, recurrent, or metastatic disease at randomization
- Active or history of autoimmune disease or immune deficiency
- Diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug
- Diagnosed additional malignancy within 5 years prior to baseline, except for: (a) non-invasive carcinomas subject to successful curative treatment in the opinion of the investigator which require no further therapy and (b) other malignancies for which subjects have undergone potentially curative therapy and have been considered disease free for at least 3 years prior to screening.
- Active infection requiring systemic therapy
- Is pregnant, breastfeeding or expecting to conceive or father children within the study's projected duration
- History of human immunodeficiency virus (HIV) (HIV I/II antibodies).
- Co-infection with HBV and hepatitis D viral infection
- Co-infection with HBV and HCV
- Has received a live vaccine within 30 days of planned start of study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Johns Hopkins University
Baltimore, Maryland, 21287, United States
Related Links
MeSH Terms
Interventions
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 20, 2026
First Posted
July 23, 2026
Study Start (Estimated)
September 1, 2026
Primary Completion (Estimated)
September 1, 2029
Study Completion (Estimated)
June 1, 2032
Last Updated
July 28, 2026
Record last verified: 2026-07