Key points from article :
New drugs had the potential to cure more patients and cut side-effects.
Drug that has been approved is called larotrectinib.
Charlotte Stevenson, 2 years old, is the first patient who has been treated with larotrectinib.
Charlotte developed and grew at a rapid rate, she can now have a relatively normal life.
NHS England described tumour-agnostic drugs as a "revolutionary" and "exciting breakthrough" in cancer.
Clinical trial is being done at the Royal Marsden Sutton, in London.
