How do you know for sure that the disease will be treated with your medicine? as sometimes diseases can have slight

Question: How do you know for sure that the disease will be treated with your medicine? as sometimes diseases can have slight variations between people
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Asked by anon-285338 to Kate on 17 Mar 2021.
- Kate Gilbert answered on 17 Mar 2021:
  
  That’s a very good question! It’s an incredibly complex process as you might imagine. Most medicines take 10-12 years to develop for this reason. We use many many methods to ensure that the disease will be treated with the best medicine we can make, including making lots of similar compounds and test them to see which is best (called lead optimisation), using computers to study the biological targets of our medicines and genetic techniques to understand who the disease is impacting and why.

Question: How do you know for sure that the disease will be treated with your medicine? as sometimes diseases can have slight variations between people