First-in-Human Phase I Clinical Trial of an SFV-Based RNA Replicon Cancer Vaccine against HPV-Induced Cancers.
Mol Ther
; 29(2): 611-625, 2021 02 03.
Article
en En
| MEDLINE
| ID: mdl-33160073
A first-in-human phase I trial of Vvax001, an alphavirus-based therapeutic cancer vaccine against human papillomavirus (HPV)-induced cancers was performed assessing immunological activity, safety, and tolerability. Vvax001 consists of replication-incompetent Semliki Forest virus replicon particles encoding HPV16-derived antigens E6 and E7. Twelve participants with a history of cervical intraepithelial neoplasia were included. Four cohorts of three participants were treated per dose level, ranging from 5 × 105 to 2.5 × 108 infectious particles per immunization. The participants received three immunizations with a 3-week interval. For immune monitoring, blood was drawn before immunization and 1 week after the second and third immunization. Immunization with Vvax001 was safe and well tolerated, with only mild injection site reactions, and resulted in both CD4+ and CD8+ T cell responses against E6 and E7 antigens. Even the lowest dose of 5 × 105 infectious particles elicited E6/E7-specific interferon (IFN)-γ responses in all three participants in this cohort. Overall, immunization resulted in positive vaccine-induced immune responses in 12 of 12 participants in one or more assays performed. In conclusion, Vvax001 was safe and induced immune responses in all participants. These data strongly support further clinical evaluation of Vvax001 as a therapeutic vaccine in patients with HPV-related malignancies.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Virus de los Bosques Semliki
/
Vacunas contra el Cáncer
/
Infecciones por Papillomavirus
/
Vacunas contra Papillomavirus
/
Vectores Genéticos
/
Neoplasias
Tipo de estudio:
Clinical_trials
Límite:
Humans
Idioma:
En
Revista:
Mol Ther
Asunto de la revista:
BIOLOGIA MOLECULAR
/
TERAPEUTICA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Países Bajos
Pais de publicación:
Estados Unidos