For Patients: Clinical Trials


INOVIO is committed to developing new, innovative DNA medicines to treat diseases with urgent global health needs including cancer and infectious diseases.
INOVIO currently has the following clinical trials enrolling. For questions or more information please email

DiseaseBRCA1/2 Mutation Carriers
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ProgramINO-5401 Study PhasePhase 1 SummaryThe research study is being conducted to test an experimental vaccine to potentially prevent cancer for people with BRCA1 or BRCA2 mutations. This study will test if the vaccine is safe (without significant side effects) and test a new way of administering vaccines. It will also test whether the vaccine activates your immune system.
DiseaseCervical High-Grade Squamous Intraepithelial Lesions (HSIL)
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ProgramVGX-3100 Study PhasePhase 3 SummaryHPV-303 is a prospective, randomized, double-blind, placebo-controlled phase 3 study of VGX-3100 delivered intramuscularly (IM) followed by electroporation (EP) delivered with CELLECTRA™ 5PSP in adult women with histologically confirmed high-grade squamous intraepithelial lesions (HSIL) (cervical intraepithelial neoplasia grade 2 [CIN2] or grade 3 [CIN3]) of the cervix, associated with HPV-16 and/or HPV-18.
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ProgramINO-4800 Study PhasePhase 2/3 SummaryThis is a Phase 2/3, randomized, placebo-controlled, multi-center trial to evaluate the safety, immunogenicity and efficacy of INO-4800 administered by intradermal (ID) injection followed by electroporation (EP) using CELLECTRA® 2000 device to prevent COVID-19 in participants at high risk of exposure to SARS-CoV-2. The Phase 2 segment will evaluate immunogenicity and safety in approximately 400 participants at two dose levels across three age groups. Safety and immunogenicity information from the Phase 2 segment will be used to determine the dose level for the Phase 3 efficacy segment of the study involving approximately 7116 participants.
DiseaseEbola Virus Disease (EVD)
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ProgramINO-4201 Study PhasePhase 1 SummaryEbola virus disease (EVD) is a serious illness with a high fatality rate. Currently only one vaccine is available, VSV-ZEBOV/Ervebo; this vaccine is clinically effective and has been deployed as a preventive measure during recent Ebola outbreaks. The durability of protection afforded by this vaccine is unknown, however, and it is thought that a booster vaccination may be required to maintain immune responses. Recently, a synthetic DNA vaccine, INO-4201, was tested in humans and showed good immunogenicity and an enhanced safety profile. This study aims to test whether the DNA-based candidate INO-4201 can be used as a booster in healthy volunteers previously vaccinated with VSV-ZEBOV.
DiseaseHIV-Positive Anal High-Grade Squamous Intraepithelial Lesions (HSIL)
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ProgramVGX-3100 Study PhasePhase 2 SummaryThis Phase 2 trial studies the use of human papillomavirus (HPV) deoxyribonucleic acid (DNA) plasmids therapeutic vaccine VGX-3100 and electroporation in treating patients with human immunodeficiency virus (HIV)-positive high-grade anal lesions. Vaccines made from DNA may help the body build an effective immune response to kill tumor cells. Electroporation helps pores in your body's cells take in the drug to strengthen your immune system's response. Giving VGX-3100 and electroporation together may work better in treating patients with high-grade anal lesions.
DiseaseMetastatic Castration-resistant Prostate Cancer
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ProgramINO-5151 Study PhasePhase 1/2 SummaryThis study is designed to evaluate multiple clinical hypotheses and mechanistically-defined combinations to evaluate the safety and efficacy of immunotherapy combinations in participants with mCRPC who have received prior secondary androgen receptor signaling inhibitor therapy (eg, abiraterone, enzalutamide, apalutamide).
DiseaseMiddle East Respiratory Syndrome Coronavirus (MERS-CoV)
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ProgramINO-4700 Study PhasePhase 2 SummaryThe purpose of this Phase 2a, randomized, blinded, placebo-controlled, multi-center study is to evaluate the safety, tolerability and immunogenicity of INO-4700 administered by intradermal (ID) injection followed by electroporation (EP) using the CELLECTRA™ 2000 device in healthy adult volunteers for Middle East Respiratory Syndrome Coronavirus (MERS-CoV) infection. This study is divided into 2 parts: Part 1- dose finding stage and Part 2- dose expansion stage.
DiseaseRecurrent Respiratory Papillomatosis (RRP)
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ProgramINO-3107 Study PhasePhase 1/2 SummaryThis is a Phase 1/2 open-label, multicenter trial to evaluate the safety, tolerability, immunogenicity, and efficacy of INO-3107 in subjects with HPV-6 and/or HPV-11-associated recurrent respiratory papillomatosis (RRP). The trial population will include participants who have been diagnosed with either Juvenile-Onset RRP (J-O RRP) as defined by age at first diagnosis <12 years or with Adult- Onset RRP (A-O RRP) as defined by age at first diagnosis ≥12 years. A safety run-in will be performed with up to six participants with a one week waiting period between each enrolled participant.