Andreas Hollenstein

Senior Principal Scientist at Roche

Basel, Basel, Switzerland

About

I am passionate about bridging science and solutions, enabling the delivery of safe and effective therapies that transform patient lives. With over a decade of experience in the (bio)pharmaceutical industry, I specialize in supporting drug discovery and development from target assessment through to IND filing. My expertise spans comprehensive immunotoxicology and immunogenicity assessments, leveraging in silico, in vitro, and in vivo models to provide insightful and actionable data for project teams. Having contributed to numerous successful projects, I bring a deep understanding of the complexities involved in drug development across a wide range of therapeutic indications and modalities. My approach ensures tailored strategies that align with project goals while navigating the challenges specific to each drug discovery effort.

Experience

  • Roche ()
    • Senior Principal Scientist, Immunosafety
      Oct 2025 - Present · 10 mos

      • Providing strategic scientific leadership for comprehensive immunosafety risk assessments and immunogenicity mitigation plans, acting as a Subject Matter Expert within multidisciplinary Translational Risk Benefit teams. • Orchestrating the development and implementation of complex in vitro and ex vivo assays by mobilizing and directing matrix-organized resources. • Synthesizing complex safety data to drive regulatory interactions and filing strategies, ensuring alignment across cross-functional expert groups and adherence to global ICH/GLP guidelines.

    • Principal Scientist, Immunosafety
      Jul 2021 - Sep 2025 · 4 yrs 3 mos

      As for previous position with the following additions: • Leading mechanistic workup of findings in pre-clinical and clinical studies • Contributing to organizational change during and after PS transformation as part of the Portfolio Squad and PS Leadership Network

    • Senior Scientist, Immunosafety
      Jan 2020 - Jun 2021 · 1 yr 6 mos

      • Developing immunosafety strategy for innovation and portfolio delivery • Driving the development of new approaches for immunosafety and immunogenicity prediction • Provides expert input to project teams (including due diligences) on safety issues and addresses questions on risk assessment • Delivery of high quality study reports and safety documents

  • Genmab ()
    • Senior Scientist Antibody Research & Technology
      Jan 2019 - Dec 2019 · 1 yr

      • Exploration of emerging technologies in cancer immune therapy • Support decision making process for new immune therapy technologies • Stage and strategy setting for future immune therapy technologies • Consulting on novel antibody discovery platform

    • Scientist Lead Discovery & Technologies
      Mar 2013 - Dec 2018 · 5 yrs 10 mos

      • Antibody discovery preparation • Development of novel antibody discovery platforms (Single Cell Sequencing) • Lead optimization (emphasis on humanization, immunogenicity assessment) In addition, consulting in Immuno-Oncology, planning and executing multi cluster projects, supporting collaborations with external partners.

  • Postdoctoral fellow at The Netherlands Cancer Institute
    Dec 2009 - Mar 2013 · 3 yrs 4 mos

    Developing a non viral gene transfer system for cell based immune therapy. Main focus on T cell receptor gene delivery into mouse and human lymphocytes.

  • PhD Student at University Hospital Zurich
    Jan 2005 - Dec 2009 · 5 yrs

    PhD student in the laboratory for Molecular Radiobiology. Investigating ionizing radiation induced signaling pathways in cancer aiming to identify potential targets for the sensitisation to this treatment modality. Focus on post translational protein modification and DNA damage response.

  • Scientist at Millenium Biologix
    Mar 2003 - Sep 2003 · 7 mos

    Development of a fully automated cartilage tissue engineering device. Comparative analysis of glucose consumption and cell confluence. Feasibility study for the implementation of a non invasive glucose measuring system. Performing and analyzing test runs on prototypes.