GNOS-PV02 Personalized Neoantigen Vaccine, INO-9012 and Pembrolizumab in Subjects With Advanced HCC

  • End date
    Aug 11, 2023
  • participants needed
  • sponsor
    Geneos Therapeutics
Updated on 11 May 2022
liver cancer
measurable disease
hepatitis b surface antigen
antiviral therapy
antiviral drugs


This is a single-arm, open-label, multi-site Phase I/IIa study of a personalized neoantigen DNA vaccine (GNOS-PV02) and plasmid encoded IL-12 (INO-9012) in combination with pembrolizumab (MK-3475) in subjects with histologically or cytologically confirmed diagnosis of HCC based on pathology report.

Condition HCC
Treatment Pembrolizumab, INO-9012, GNOS-PV02, CELLECTRA®2000 EP Device
Clinical Study IdentifierNCT04251117
SponsorGeneos Therapeutics
Last Modified on11 May 2022


Yes No Not Sure

Inclusion Criteria

Be willing and able to provide written informed consent for the study. The subject may also provide consent for Future Biomedical Research (FBR). However, the subject may participate in the main study without participating in FBR
18 years of age on day of signing informed consent
Have histologically or cytologically confirmed diagnosis of HCC based on pathology report. Radiological diagnosis is valid to initiate screening pending confirmation by pathology
Have Barcelona Clinic Liver Cancer (BCLC) Stage C disease or BCLC Stage B disease not amenable to locoregional therapy, or refractory to locoregional therapy, and not amenable to a curative treatment approach
Have a Child-Pugh Class A liver score
Have a predicted life expectancy of greater than 6 months
Have measurable disease based on RECIST 1.1
Have a performance status of 0 or 1 using the ECOG Performance Scale within 7 days of first dose of study drug
Receiving or eligible for first-line therapy with sorafenib or lenvatinib
Willing to submit a tissue sample for personalized DNA vaccine manufacturing
Patients with chronic or acute HBV infection [as characterized by positive hepatitis B surface antigen (HBsAg) and/or hepatitis B core antibodies (anti-HBcAb) with detectable HBV DNA (≥10 IU/ml)] must be treated with effective antiviral therapy, as per institutional practices, prior to enrollment and for the duration of the study therapy. Patients who test positive for anti-hepatitis B core (HBc) with undetectable HBV DNA (<10 IU/ml) do not require anti-viral therapy prior to enrollment however these subjects will be tested at every cycle to monitor HBV DNA levels and initiate antiviral therapy if HBV DNA is detected (≥10 IU/ml). Subjects with chronic infection by hepatitis C virus (HCV), who are untreated, are allowed on study. In addition, subjects with successful HCV treatment (defined as sustained virologic response [SVR] 12 or SVR 24) are allowed, as long as 4 weeks have passed between completion of HCV therapy and start of study drug. Subjects receiving antiviral therapy during TKI may be enrolled
Have a negative urine or serum pregnancy test within 72 hours prior to receiving the first dose of study drug (Cycle 1, Day 1) (female subjects of childbearing potential). If the urine test is positive, or cannot be confirmed as negative, a serum pregnancy test will be required
Be willing to use an adequate method of contraception for the course of the study through 150 days after the last dose of study drug (male and female subjects of childbearing potential) Note: Abstinence is acceptable if this is the usual lifestyle and preferred contraception for the subject
Demonstrate adequate organ function

Exclusion Criteria

Is currently participating 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 of the first dose of treatment. Subjects must also have recovered from associated therapy (i.e., to Grade ≤1 or baseline) and from AEs due to any prior therapy
Has received sorafenib or lenvatinib within 14 days of first dose of study drug
Has had esophageal or gastric variceal bleeding within the last 6 months. If suspected, subjects will be screened for esophageal varices. If varices are present, they should be treated according to institutional standards before starting study treatment
Has clinically apparent ascites on physical examination. Note: only ascites detectable on imaging studies is allowed
Evidence of portal vein invasion based on imaging is allowed pending subjects meet laboratory criteria for enrollment
Has had encephalopathy in the last 6 months. Subjects on rifaximin or lactulose to control their encephalopathy are not allowed
Had a solid organ or hematologic transplant
Had prior systemic therapy for HCC other than sorafenib or lenvatinib
Has active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease-modifying agents, corticosteroids, or immunosuppressive drugs). Replacement therapy (e.g., T4, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
Has a 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. The use of physiologic doses of corticosteroids may be approved after consultation with the Sponsor
Has received locoregional therapy to liver (transarterial chemoembolization [TACE], transarterial embolization [TAE], radiation, radioembolization, or ablation) or major surgery to liver or other site within 3 weeks prior to the first dose of study drug. Minor surgery (e.g., simple excision, tooth extraction) must have occurred at least 7 days prior to the first dose of study drug (Cycle 1, Day 1). Subjects must have recovered adequately (i.e., Grade ≤1 or baseline) from the toxicity and/or complications from any intervention prior to starting therapy
Has a diagnosed additional malignancy within 5 years prior to first dose of study drug, with the exception of curatively treated basal cell carcinoma of the skin, squamous cell carcinoma of the skin, and/or curatively resected in situ cervical and/or breast cancers. Subjects with history of early-stage prostate cancer that has been curatively treated or appropriate for observation may be enrolled
Has radiographically detectable (even if asymptomatic and/or previously treated) central nervous system (CNS) metastases and/or carcinomatous meningitis, as assessed by local site investigator
Has a known history of, or any evidence of, interstitial lung disease or active noninfectious pneumonitis
Has an active infection requiring systemic therapy
Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the study, interfere with the subject's participation for the full duration of the study, or is not in the best interest of the subject to participate, in the opinion of the treating investigator, including dialysis
Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the study
Is pregnant or breastfeeding or expecting to conceive or father children within the projected duration of the study, starting with the screening visit through 150 days after the last dose of study drug
Has received prior immunotherapy including anti-programmed death (PD) 1, anti-programmed death ligand (PD-L)-1, or anti-PD-L2 agents, or personalized therapies such as adoptive cell therapy or neoantigen-based vaccine
Has a known history of human immunodeficiency virus (HIV) (HIV I/II antibodies)
Has untreated active hepatitis B virus (HBV), unless planned antiviral therapy during TKI
Note: Patients with HBV infection, characterized by positive HBsAg and/or
HBcAb with detectable HBV DNA (≥10 IU/ml or above the limit of detection per
local lab standard), must be treated with antiviral therapy as per
institutional practice to ensure adequate viral suppression (HBV DNA ≤2000
IU/mL) prior to treatment with the study drug. Patients who test positive for
HBcAg with undetectable HBV DNA (<10 IU/ml or under the limit of detection per
local lab standard) do not require anti-viral therapy prior to enrollment
Has received a live vaccine within 30 days of planned start of study treatment (Cycle 1, Day 1)
Note: The killed virus vaccines used for seasonal influenza vaccines for
injection are allowed; however intranasal influenza vaccines (e.g., FluMist®)
are live attenuated vaccines and are not allowed
Any contraindication for treatment with the CELLECTRA® 2000 Device
Any significant acute or chronic medical illness if deemed by the practitioner that EP treatment could negatively impact the illness
Presence of unstable or life-threatening cardiac disease (e.g., unstable angina, Class 3 or higher congestive heart failure)
A cardioverter-defibrillator or pacemaker (to prevent a life-threatening arrhythmia) that is located ipsilateral to the intended deltoid injection site (unless deemed acceptable by a cardiologist)
Any metal implants or implantable medical device within the electroporation area
Has no mutations detected after sequencing of the tumor
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