What happens when multiple targeted therapies are approved by FDA, each with a unique companion diagnostic for the same biomarker? The health care system is ill-equipped to deal with that scenario, putting patients at risk if the wrong test is used to guide a treatment decision. Industry has one solution: an analytical comparison of various diagnostic assays, starting with the anti-PD-L1 immunotherapy class.
It may be one of the few downsides of personalized medicine.
The Food & Drug Administration and other stakeholders are concerned that the pharmaceutical industry’s interest in developing targeted therapies – like those that target the PD-1/PD-L1 pathway to treat a variety of cancers – could lead to a complicated post-marketing environment with multiple drugs approved in