Clinical trial · Interventional
Testing RG1-VLP Vaccine to Prevent HPV-related Cancers
A Dose Escalation Phase I Trial of the Safety and Immunogenicity of RG1-VLP, A Candidate Broadly Protective Vaccine for the Prevention of HPV-Associated Cancer
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 10, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260910-000001
Summary
Brief summary (as posted)
This phase I trial tests the safety, side effects, and best dose of RG1-virus-like particle (VLP) in preventing human papillomavirus (HPV)-related cancers in women. RG1-VLP is a vaccine that aims to protect against rare HPV types not targeted by currently approved HPV vaccines. HPV is a common sexually-transmitted infection that can cause certain genital and oral cancers. RG1-VLP contains a protein of HPV type 16 (HPV16) with a slightly different structure than the licensed Gardasil-9 vaccine. Gardasil-9 is approved by the Federal Drug Administration to help protect against diseases caused by some types of HPV. Gardasil-9 also contains 9 different HPV proteins. Both vaccines contain alum to stimulate the immune system. The usual approach for the prevention of HPV-related cancers for patients who are at increased risk is to consider the currently approved HPV vaccine like Gardasil-9, as well as to be followed closely by their doctor to watch for the development of cancer via routine pap smears. This trial may allow researchers to find out whether the RG1-VLP vaccine can safely trigger an immune response against HPV in healthy women and if it is better or worse than the usual approach for the prevention of HPV-related cancers.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Human Papillomavirus-Related Carcinoma | Human Papillomavirus-Related Carcinoma | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (4)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Biospecimen Collection | Procedure | — | UNRESOLVED |
| HPV16 RG1 VLP Vaccine | Biological | — | UNRESOLVED |
| Questionnaire Administration | Other | — | UNRESOLVED |
| Recombinant Human Papillomavirus Nonavalent Vaccine | Biological | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Prevention (RG1-VLP, Gardasil-9)
- description
- Patients receive RG1-VLP IM for 3 doses at months 0, 2, and 6 in the absence of unacceptable toxicity. Patients may also receive Gardasil-9 via injection for 3 doses at 6 months after the 3rd study vaccination (month 12), then at months 14 and 18 in the absence of unacceptable toxicity. Patients also undergo blood sample collection on study and may undergo vaginal swab collection on study.
- interventionNames
- Procedure: Biospecimen Collection
- Biological: HPV16 RG1 VLP Vaccine
- Other: Questionnaire Administration
- Biological: Recombinant Human Papillomavirus Nonavalent Vaccine
Primary outcomes (1)
- measure
- Incidence of adverse events
- timeFrame
- Up to 6 months post-3rd RG1-virus-like particle (VLP) vaccination/saline injection
- description
- Safety of the three escalating doses of RG1-VLP will be assessed by adverse events in terms of severity grade and attribution to vaccination as ordinal outcomes. All toxicities will be tabulated and frequencies and percentages of events will be presented for each vaccine dose cohort. The severity of the adverse events will be assessed using the Common Terminology Criteria for Adverse Events 5.0 and supplemented by Food and Drug Administration "Guidance for Industry: Toxicity Grading Scale for Healthy Adult and Adolescent Volunteers Enrolled in Preventative Vaccine Clinical Trials."
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 18 Years
- Maximum age
- 60 Years
Show eligibility criteria text
Inclusion Criteria: * Women, age 18 - 60 years. Because no dosing or adverse event (AE) data is currently available for the use of RG1-VLP in humans, children and adolescents are excluded from this study * White blood cell (WBC) between 3000/mm\^3 - institutional upper limit of normal * Hemoglobin (Hgb) between 10 g/dl - institutional upper limit of normal * Platelets \>= 100,000/mm\^3 * Serum creatinine within institutional normal limits * Bilirubin =\< 2x institutional upper limit of normal * Alanine aminotransferase (ALT) =\< 2x institutional upper limit of normal * Aspartate aminotransferase (AST) =\< 2x institutional upper limit of normal * Human immunodeficiency virus (HIV)-1/HIV-2 negative * Hepatitis B and hepatitis C negative * The effects of RG1-VLP vaccination on the developing human fetus at the proposed doses are unknown. For this reason, all women of childbearing potential will have a pregnancy test and all heterosexually active women must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her study physician immediately. The following persons are not considered to be able to bear children and are therefore eligible to participate without the use of concurrent birth control: * Female with bilateral oophorectomy and/or hysterectomy * Female with fallopian tubes cut, tied or sealed * Female with sterilization implant (e.g. Adiana, Essure) placed \> 3 months prior to registration * Female post-menopausal (\> 1 year since last menses or prior laboratory follicle stimulating hormone (FSH) value per institutional range indicating post- menopausal) * Eastern Cooperative Oncology Group (ECOG) performance status of =\< 1 * Ability to understand and the willingness to sign a written informed consent document Exclusion Criteria: * History of any of the following: * Prior or current genital warts * Treatment for anogenital intraepithelial neoplasia (cervical intraepithelial neoplasia \[CIN\], anal intraepithelial neoplasia \[AIN\], vaginal intraepithelial neoplasia \[VAIN\], vulvar intraepithelial neoplasia \[VIN\]) * Systemic cancer treatment within the prior year * History of anaphylaxis to vaccines * Any prior vaccination with Gardasil, Gardasil-9, or Cervarix or other HPV vaccine * Receipt of blood products within 3 months of enrollment, or continuing plasma donation * Participants receiving any other investigational agents * History of allergic reactions attributed to compounds of similar chemical or biologic composition to the adjuvant or to RG1-VLP * Uncontrolled intercurrent illness or psychiatric illness/social situations that would limit compliance with study requirements or preclude protocol vaccination * Pregnant women or actively lactating women are excluded from this study because RG1-VLP is a vaccine with the potential for teratogenic or abortifacient effects * Planned receipt of any inactivated vaccine in the 2 weeks preceding and the 2 weeks following any trial vaccination * Planned receipt of any live attenuated vaccine in the 4 weeks preceding and the 4 weeks following any trial vaccination * Women with a history of bleeding disorders or use of anticoagulants (aspirin is acceptable) * Had prior medical diagnoses: * Rheumatoid arthritis or other auto-immune disease * Congenital or acquired immunodeficiency * Collagen vascular disease * Following medical treatments: * Current use of immunosuppressive drugs including corticosteroid use (inhaled or topical steroids are permitted) * Unrecovered major infections and/or surgical procedures
References
Publications (0)
Data not yet available