About this trial
Phase I clinical trial to assess safety of pNGVL4aCRTE6E7L2 DNA and TA-CIN protein vaccinations, and to seek the appropriate dose of the pNGVL4aCRTE6E7L2 DNA vaccine
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Patients with persistent (>6 month period) ASC-US/LSIL determined by cervical cytology at study entry (ThinPrep with imaging)
Patients whose cytologic samples are persistent (>6 month period) HPV16+ by Roche Cobas 4800, Roche Linear Array HPV Genotyping test or other FDA-approved HPV genotyping test at study entry. Co-infections with HPV types other than HPV16 are permissible for study entry.
Age ≥ 19 years
Baseline Eastern Cooperative Oncology Group
Disqualifiers
Patients with ASC-US/LSIL determined by cervical cytology at study entry that are HPV16 negative.
Histologic evidence of CIN2+
Patients with a diagnosis of immunosuppression or prolonged, active use of immunosuppressive medications such as steroids.
Prior vaccination with any HPV antigen (prophylactic or therapeutic).
Trial design
Sequential
Treatments tested in this trial
pNGVL4aCRTE6E7L2
Biological/VaccineNaked pNGVL4aCRTE6E7L2 DNA plasmid
TA-CIN
Biological/VaccineTA-CIN is a single fusion protein comprised of HPV16 L2, E7 and E6 proteins linked in tandem.
Treatment groups
Trial outcomes
Primary outcomes
Safety and feasibility of pNGVL4aCRTE6E7L2 DNA vaccination
To determine the safety and feasibility of intra-muscular administration of pNGVL4aCRTE6E7L2 DNA vaccine in patients with persistent HPV16+ ASC-US/LSIL
Dose finding
To determine the appropriate intra-muscular injection dose of pNGVL4aCRTE6E7L2 DNA vaccine as determined by toxicity and immunogenicity for a subsequent phase II clinical trial
Safety and feasibility of PVX-6 vaccination
To determine the safety and feasibility of intra-muscular administration of pNGVL4aCRTE6E7L2 DNA vaccine prime, TA-CIN protein vaccine boost in patients with persistent HPV16+ ASC-US/LSIL
Secondary outcomes
HPV16 antibody response
To evaluate the levels of circulating antibody specific for HPV-16 in the peripheral blood pre- and post-vaccination
HPV16 CD8 T cell response
To evaluate the levels of circulating HPV-16 E6- and E7-specific CD8+ T cells and T regulatory cells in the peripheral blood pre- and post-vaccination
HPV16 L2E7E6 T cell proliferative response
To evaluate the proliferative responses of peripheral blood mononucleocytes pre- and post-vaccination in response to stimulation by HPV16 E6, E7 and L2
Clearance of HPV16
To evaluate the presence of high risk HPV, and specifically HPV16 in cytologic specimens pre- and post-vaccination
Sponsors and contacts
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University of Alabama at Birmingham
Lead sponsor
Johns Hopkins University
Collaborator