There is no single manufacturer for every osimertinib-branded product. Manufacturer identity depends on the specific brand and market.
Tagrisso
Tagrisso is the established reference product. DailyMed identifies AstraZeneca Pharmaceuticals LP as the U.S. packager.
Tagrix
Beacon Pharmaceuticals’ official product page identifies Tagrix as an osimertinib tablet available in 80 mg strength.
Osicent
Incepta Pharmaceuticals’ official product page identifies Osicent 80 as an osimertinib product.
Osimert
Everest Pharmaceuticals’ official product catalogue identifies Osimert as osimertinib 80 mg.
Manufacturer versus originator
The originator/reference-product company, generic manufacturer, marketing authorization holder, distributor and supplier may be different entities.
Quality claims
Specific claims about GMP status, manufacturing-site certification, batch-release procedures or international approvals should be made only where documentation supports them.