Pirtobrutinib breakthrough therapy designation date?

When did pirtobrutinib get Breakthrough Therapy designation?

Pirtobrutinib received Breakthrough Therapy designation on September 6, 2019. [1]

Is that the same as other FDA designations (or approvals) for pirtobrutinib?

No. Breakthrough Therapy designation is an FDA program for expediting development and review of drugs intended to treat serious conditions when preliminary clinical evidence suggests substantial improvement over existing options. It is separate from FDA approval dates.

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