GENE THERAPYGENE THERAPYGene therapy is a technology aimed at correcting or fixing a gene that may be defective.Medicinal SciencesMedicinal SciencesAt Pfizer, we are investing in next-generation science and technology to invent tomorrow’s innovative therapiesPrecision MedicinePrecision MedicineThe emergence of new technology platforms enables us to redefine how we approach the R&D process.BiosimilarsBiosimilarsBiosimilars are highly similar versions of approved and authorized biological medicines.