
Home — Insights
InsightsGuides for biologics developers.
Plain-language explainers on cell lines, biosimilar comparability and peptide manufacturing — written by the Theertha team for scientists, project leads and partners.

From gene to stable cell line: how clone development works
Every recombinant biologic starts with a cell line that has to make the right molecule consistently. The steps from vector design to cell banking, and what makes a good clone.
Read the guide
How analytical similarity is shown for a biosimilar
A biosimilar has to be shown, attribute by attribute, to be highly similar to an originator biologic. What gets compared, and how the analytical case is built.
Read the guide
Recombinant or chemically synthesised: how to choose how a peptide is made
Peptides can be made by chemical synthesis or by recombinant expression in living cells. Compare length, modifications, scale and impurity profile to choose a route.
Read the guide