Infectious disease models

The development of anti‑infective therapies and vaccines requires robust preclinical models capable of capturing both pathogen control and host immune response. Infectious diseases involve complex interactions between pathogens, innate and adaptive immunity, and tissue‑specific responses, making the generation of meaningful efficacy and pharmacodynamic data particularly challenging.

At CER Groupe, we design and conduct customised preclinical efficacy studies in infectious diseases, integrating in vivo infection models with supporting in vitro and cell‑based assays. As both a research centre and a CRO, we support pharmaceutical and biotechnology innovators with translational data to guide candidate selection, dose optimisation and progression toward clinical development.

A disease‑driven approach to infectious diseases

Our approach to infectious disease efficacy is built on:

  • Pathogen‑ and mechanism‑driven model selection, aligned with antibacterial, antiviral or vaccine strategies
  • Integration of in vitro and in vivo pharmacodynamic readouts
  • Clinically relevant endpoints, capturing pathogen burden, immune response and tissue impact
  • High customisation, including infection route, inoculum, dosing regimens and biomarker panels

This strategy supports programmes from early proof‑of‑concept to advanced preclinical optimisation, across small molecules, biologics, vaccines, immune‑based therapies and innovative anti‑infective approaches.

In vivo infectious disease efficacy & pharmacodynamic models

CER Groupe offers a portfolio of established and adaptable in vivo infection models, covering bacterial and viral pathogens as well as localised and systemic infections.

Immune cell characterisation & immunomodulation
  • Immune‑cell phenotyping by flow cytometry
  • PBMC‑based assays
  • Immune‑cell activation and modulation profiling
  • Secretion profiling using MSD multiplex and ELISA
  • Gene expression analysis (qPCR)

These assays help characterise host immune responses and support biomarker selection.

Anti‑inflammatory and host‑response assays

To support therapies targeting host‑directed or immune‑modulating mechanisms:

  • Inflammatory stimulation assays (e.g. LPS‑based systems)
  • Cytokine inhibition profiling
  • Live‑cell kinetic monitoring of inflammatory responses
Cytotoxicity and host‑cell safety profiling

To ensure selectivity and interpret therapeutic index:

  • Cell viability assays (MTT, WST‑1)
  • LDH release
  • Apoptosis / necrosis profiling (Annexin V/PI, caspase‑3/7, TUNEL)
  • Live‑cell toxicity monitoring

These assays are particularly relevant for anti‑infective and vaccine programmes, where host‑cell safety is critical.

Biomarkers, endpoints & translational strategy

Infectious disease studies at CER Groupe integrate multi‑level pharmacodynamic readouts, including:

  • Pathogen burden (CFU, PFU, qPCR)
  • Survival and clinical outcome measures
  • Immune response profiling (cytokines, immune‑cell subsets)
  • Antibody responses (for vaccine programmes)
  • Histopathology and tissue‑specific damage assessment

This integrated strategy strengthens translational relevance and supports alignment with clinical infectious disease endpoints.

Custom model development & co‑development

For programmes requiring non‑standard pathogens, routes of infection or immune readouts, CER Groupe offers custom model development and co‑development, including:

  • Adaptation of infection routes and inocula
  • Integration of novel immune or molecular biomarkers
  • Pilot feasibility and validation studies
  • Tailored designs for vaccine or host‑directed therapies

This approach is particularly suited for first‑in‑class anti‑infective strategies and innovative vaccine concepts.

Why choose CER Groupe for infectious disease studies?

  • Research centre + CRO, combining scientific depth and execution
  • Highly customised infectious disease models, beyond standard catalogues
  • Strong expertise in host–pathogen interactions and immune profiling
  • Integrated in vitro, in vivo and biomarker platforms
  • GLP-like data integrity supporting downstream development
  • Experience across antibacterial, antiviral and vaccine programmes