T21 is the largest observational medical cannabis study in the UK, gathering data on the efficacy of cannabis-based medicines for a wide range of conditions. 

What is T21?

T21 allows eligible patients to access medical cannabis treatment at a discounted price, and have their treatment tracked by Drug Science. 

Drug Science will use the data from T21 to provide evidence for NHS funding of medical cannabis treatment.

Receive monthly updates and the latest news on our data findings.

Watch our video on how T21 works

Why join T21?

Watch our patient videos