8:50 am Chair’s Opening Remarks

EXPANDING THE ANALYTICAL TOOLBOX BEYOND AAV

9:00 am Developing Analytical Tools to Assess the Complex Payloads of an LNPbased HBV-Targeting Gene Therapy

Synopsis

  • What does the analytical control strategy look like for a frontline LNP approach?
  • Understanding the high-level regulatory requirements for LNP to ensure all relevant CQAs are addressed

9:30 am Establishing Analytical Techniques for RNA-based Vector Modalities to Enhance Product Development

Synopsis

  • Implementing new analytical methods for the development of RNA-based vector modalities
  • Identifying relevant CQAs, including for LNP-based delivery systems
  • Presenting data on lot release and characterisation methods used for the clinical development of RNA products
  • Addressing quality control challenges in RNA-based gene therapies through the implementation of robust analytical techniques

10:00 am (NEW DATA) (NEW TECH) Developing an Analytical Toolbox for the Efficient Characterisation of Viral & Non-Viral Particle Conjugations

Synopsis

  • Presenting platform technology on a new generation of bio-conjugated vectors
  • Expanding the platform of bio-conjugated vectors to include lipid nanoparticles
  • Developing a relevant analytical toolbox and using orthogonal analytical methods to characterise these bio-conjugated vector modalities

10:30 am Morning Refreshments & Networking

BIOASSAYS/MOLECULAR BIOLOGY

NGS TECHNIQUES FOR EXTENDED VECTOR CHARACTERISATION

11:30 am (CASE STUDY) Using Contemporary NGS Technologies Orthogonally to Effectively Characterise AAV Capsid Content.

Synopsis

  • Exploring how to use NGS in practice
  • Comparing the strengths and weaknesses of different NGS techniques (PacBio vs ONT vs Illumina)
  • Reporting first hand experiences with using NGS: lessons learnt, useful tips & next steps

12:00 pm (NEW DATA) Utilising NGS Methods to Measure Whole AAV Genomes & Improve Particle Characterisation

Synopsis

  • Presenting long-read sequencing methodologies for precise measurement of complete AAV genomes in gene therapy vectors
  • Optimising sequencing protocols to avoid fragmentation during sample preparation
  • Presenting plasmid sequencing data and the analysis of transposon integration events
  • Highlighting advantages of NGS in comparison to other molecular tools

PHYSICOCHEMICAL CHARACTERISATION

CONTEMPORARY CHROMATOGRAPHIC TOOLS FOR ANALYSIS OF CQAS

11:30 am Exploring the use of SEC-MALS to Establish a High-Throughput, Efficient Analytical Method to Supplement ddPCR

Synopsis

  • Real-world Applications of SEC-MALS for the analysis of inprocess samples
  • Benchmarking SEC-MALS against alternative tools such as ddPCR in the analytical development and QC testing of AAV vectors
  • Implementing methods for validating SEC-MALS instrumentation

12:00 pm (NEW DATA) Utilising HPLC for Analysis of Aggregation & to Enhance Separation Resolution Between Empty, Full & Partial Capsids

  • Xiangyi Jing Senior Analytical Scientist, Purespring Therapeutics

Synopsis

  • Refining HPLC to enable quantification of critical CQAs including aggregation and empty-full ratio
  • Presenting data establishing robust separation resolution between full and empty particles
  • Understanding mechanisms for validating contemporary HPLC techniques across AAV products
  • Benchmarking HPLC to cryo-EM and ddPCR-ELISA to demonstrate reduced variability

12:30 pm Lunch & Networking

ANALYSING HOST-CELL DNA IMPURITIES TO GUIDE PROCESS DEVELOPMENT

1:30 pm Characterising & Assessing the Impact of Host-Cell DNA Impurities to Better Understand Regulatory Requirements

Synopsis

  • Using PCR and next generation sequencing approaches to analyse residual host-cell DNA
  • Discussing the relevance of E1A, residual plasmid and recombination-competent host-cell DNA
  • Understanding regulatory perspectives on host-cell DNA quantity thresholds

2:00 pm (NEW DATA) Characterising Chimeric DNA Species to Better Understand & Guide Process Development

  • Mojca Janc PhD student, National Institute of Biology

Synopsis

  • Developing our understanding of the true genomic content of viral particles
  • Understanding DNA recombination hotspots
  • Utilising chimeric construct reads for sequence-based optimisation of gene therapy products
  • Comparing Short vs Long read sequencing approaches

REFINING THE ANALYTICAL TOOLBOX FOR EXTENDED PHYSICOCHEMICAL CHARACTERISATION

1:30 pm (CASE STUDY) (NEW DATA) Unpicking The Relative Contribution of AAV Glycosylation to Vector Function in Order to Better Understand Interstudy Variability

Synopsis

  • Introducing primary mass spectrometry data identifying AAV glycosylation status
  • Assessing the impact of AAV glycosylation on VP ratios and overall vector function
  • Determining VP ratios as a critical CQA during AAV vector manufacture

2:00 pm Introducing High Resolution Methods Of MassSpectrometry Based Purity Analysis to Accelerate Vector Characterisation

Synopsis

  • Using mass spectrometry to efficiently and accurately characterise AAV capsids and VP ratios
  • Structural characterisation of proteins and posttranslational modifications
  • Linking higher order protein structure to product function to understand the relative importance of vector impurities

2:30 pm Afternoon Refreshments & Networking

IMPLEMENTING & VALIDATING ANALYTICAL TOOLS DURING UPSCALING & MANUFACTURING

3:30 pm Evaluating Best Practice for Analytical Technology Transfer Process to Ensure Smooth Transitions During Upscaling

  • Tony Bou Kheir Head of Analytical Development & Quality Control, Purespring Therapeutics

Synopsis

  • Understanding the GMP requirements during the technical transfer of analytical methods to enable effective upscaling
  • Establishing robust methodologies for sharing protocols, custom reagents, and assay standards during tech transfer
  • Discussing analytical methods to develop confidence in CQA preservation throughout manufacturing, storage, and shipment

4:00 pm Streamlining Manufacturing & Analytical Approaches to Facilitate Efficiency

  • Simon Briggs Director Advanced Analytics, Orchard Therapeutics

Synopsis

  • Understanding the importance of interlinking QC and robust analytics for product characterisation
  • Effectively defining a robust manufacturing process to facilitate analytical efficacy

4:30 pm Chair’s Closing Remarks