Screening shifts from titre toward product quality attributes
Fed-batch expression routinely reaches six grams per litre and downstream purification capacity, not upstream yield, limits most manufacturing facilities. Selecting clones on titre alone therefore optimises a variable that stopped constraining anything. Programmes now assess thousands of candidates on glycosylation profile, charge variant distribution, aggregation propensity and stability under stress, because those attributes determine comparability across manufacturing changes and shelf life afterwards. That requires automated screening platforms and analytical throughput that sponsors rarely hold internally, which pushes the work toward specialist providers. Providers bundling that stage into a flat fee are giving away exactly what distinguishes them.
Market Impact: Requires up to 4 lines








