Analytical services
Our analytical services
Product-specific, cell-based assays
In addition to established analytical methods, DINAMIQS has experience in developing product-specific, cell-based assays to support the characterization of biological activity and product performance. Genome integrity can be extensively characterized by next-generation sequencing using an in-house bioinformatics pipeline, enabling detailed assessment of vector genome identity, integrity, and sequence variants.
Analytical method development and implementation
Product-specific analytical methods will be developed, implemented and optimized in DINAMIQS laboratories to support process establishment and to prepare for subsequent GMP qualification activities.
Analytical standard methods developed and performed in-house are described in the following table (not exhaustive). Additional assay development and method transfer can be performed or outsourced according to project specific needs.
| Product attribute | Method | AAV | LV |
|---|---|---|---|
| Strength and identity | |||
| Vector genome titer | qPCR / dPCR | + | + |
| Capsid titer | Capsid ELISA | + | |
| Capsid protein | p24 ELISA | + | |
| Total capsid concentration | SLS-UV/VIS | + | |
| Genome identity | NGS | + | + |
| Purity and integrity | |||
| Protein purity / identity / ratio | SDS-PAGE | + | + |
| Genome integrity | Alkaline gel electrophoresis and NGS | + | |
| % Full particles | Mass photometry | + | |
| Particle size distribution | DLS (dynamic light scattering) | + | + |
| Aggregation | SEC-HPLC | + | |
| Process-related impurities | |||
| Residual HEK293 host-cell protein | HCP ELISA | + | + |
| Residual host-cell DNA | hc-DNA qPCR | + | + |
| Residual production plasmid impurities | Residual plasmid dPCR | + | + |
| Potency / functional titers | |||
| Infectivity | TCID50 | + | |
| Transduction efficacy (reporter vectors) | FACS | + | + |
| Provirus quantification (VCN) | qPCR / dPCR | + | |
| Safety / microbiology | |||
| Endotoxins | LAL-KCA | + | + |
Assay validation and qualification
For early phase clinical material, analytical methods undergo qualification. This ensures that methods are reliable, reproducible, and fit-for-purpose at an early clinical stage. Qualification typically covers accuracy, precision, specificity, linearity, range, and detection limits to the extent relevant. We use ICH Q2(R2), USP <1033>/<1047> as frameworks.
For late phase/commercial programs, methods progress to full validation. System suitability criteria, reference standards, and trending controls will be implemented as integral part to each method.
