The INCENTIVE management and coordination framework continues to be operational (WP1). Two vaccine strategies (COBRA vaccine adjuvanted with c-di-AMP and APC-MIX DNA Vaccine) have advanced in pre-clinical evaluation. Immunogenicity and challenge studies in small animals (COBRA vaccine adjuvanted with c-di-AMP in mice and ferrets, and APC-MIX in mice) have shown robust immune responses and efficacy. Immunogenicity and challenge studies in non-human primates (NHP) are under way. Vaccine immunogens to be used for vaccination of NHPs have been prepared. The first study to estalish the infection model in NHPs has been successfully completed (WP3). With respect to the adjuvant, stability tests were continued and storage temperatures calculated (WP2).
Phase IV clinical trials with a commercially available influenza vaccine (QIV) include three age groups: 1) elderly ≥ 60 years (QIV-1); 2) children 3-11 years (QIV-2); and 3) infants 6-8 months (QIV-3). The trials have been completed in Europe. In India, QIV-1 and QIV-2 have been completed, and QIV- 3 is ongoing (WP4).
In depth immunological analysis of the Phase IV QIV trial samples is ongoing revealing important quantitative and qualitative differences in immune responses to influenza vaccination between different age groups (WP5).
The “data warehouse” in Europe and India has been established. It is implemented as FAIR Data Points (FDPs) distributed across the sites generating the data. All the FDPs have been deployed in Europe/India and data is being currently uploaded (WP6).
Harmonization of the clinical trials and procedures have been successfully managed. Support for the implementation of immunological readouts, such as serology, T- and B-cell responses between the European and Indian partners has continued (WP7).
For the study for eliciting preferences towards influenza vaccines and vaccination amongst the phase IV QIV trial participants in India, a Discrete Choice Experiment (DCE) was performed with the QIV-1 cohort. Data analysis for this continues to advance. The health facility assessment survey across 51 public health facilities in Sonipat and Visakhapatnam districts in India have been completed. DCE among 1600 participants in these districts have also been completed. Additionally, the Influenza-like illness (ILI) surveillance application prototype and dashboard have been developed, piloted and adapted during this period by the Indian partners. Moreover, the scoping review protocol was developed and validated by the European partners (WP8).