3,000 in the USA and 15,000 HoFH patients worldwide. Good to know the total number. That's a HUGE market at $295K per patient per year.
Patient numbers (actual patients, clinically diagnosed by doctors, not to be confused by the numbers whispered in Censored's ear by his imaginary friends) are high, around 15,000. Search the CNBC website for the video which is an interview with the AEGR CEO.