[pastor_bob]

The patent appears to belong to City of Hope[0], a non-profit cancer hospital.

Conspiracy idea: such a simple drug is not what Big Pharma wants, thus was never investigated.

Hopefully, if effective, it's affordable for people worldwide.

[0]https://patents.google.com/patent/WO2017049206A1/en

[mrguyorama]

That kind of conspiracy has never held water. Pharma makes bank off of cheap and simple drugs.