FDA is almost done writing a draft guidance on how to co-develop a companion diagnostic for a drug, but the document could essentially be outdated as soon as it is released.
The co-development draft guidance will address the types of issues drug and diagnostics firms should consider as they develop paired products, such as when tests should be incorporated into clinical trials. The document is based on what the agency has learned from drugs and companion diagnostics that have already gone through the approval process, according to Elizabeth Mansfield, director of personalized medicine at FDA’s device center, during an Oct. 28 press briefing to discuss an FDA