Still looking for approval of unmet need percent. Found this related item instead of phase1 to approval success rate, this gives average time--on average patent to launch took 13.6 years for 2018 NASs.


https://www.iqvia.com/institute/reports/the-c...evelopment

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Quote:

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n 2018, 59 new active substances (NAS) were approved and launched in the United States of which 27% are new therapies to treat cancer and its symptoms and 20% are for the treatment of infectious diseases. Translating a scientific breakthrough to the development of a therapeutic medicine remains a slow process, with the 2018 cohort of NASs taking a median of 13.6 years from the time of first patent filing to launch.

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