[Healthcare Market sizing Question] Market size for cancer immunotherapy

This question can be very complicated without sufficient context setting

Immunotherapy is not indicated for all types of cancers and for the ones it is indicated for you typically need to test for biomarkers present to see if a patient is eligible. The % of population that has the biomarker differs for each type of cancer and each drug

In addition, current treatment protocol differs by segment - for example it is not always recommended as a first line treatment for all cancers, and often comes as 2nd line

One way to estimate the market size here is to

• See which cancers can currently be treated with immunotherapy
• Estimate incidence rates for these cancers by stage
• Estimate the % of instances that can be treated with immuno therapy
  • This varies by cancer
  • Varies by stage of diagnosis
  • And requires the presence of a biomarker
• The above is your addressable market for immunotherapy
• The revenue model here is very tricky - each country has its own prices, in the US especially it depends on the contracts you have with the different payors, and treatment can easily go into hundreds of thousands of dollars per patient per year.