Ex, even with math, the percentage is too good to be true for optune.
Optune OS24: 12%.
Optune OS60: 13%.
Normally OS60 is less than OS24.
But in the case of Optune, OS60 is more than OS24. That math only means that Optune didn’t include attrition rate. Why there is no attrition between OS24 and OS60?
The OS24 for Optune was 43%.
the percentage of patients alive at 2 years from randomization was 43% (95% CI, 39%-48%); at 3 years, 26% (95% CI, 22%-31%), and at 5 years, 13% (95% CI, 9%-18%) in the TTFields plus temozolomide group and for the temozolomide-only group at 2 years was 31% (95% CI, 25%-38%; P?<?.001); at 3 years, 16% (95% CI, 12%-23%; P?=?.009); and at 5 years, 5% (95% CI, 2%-11%; P?=?.004)