I hope that we will be able to cure the disease so that no children, no family would be affected in the same way that I've seen Larson family affected.

We hope this combined treatment is effective, and it also reflects our judgment that no single ingredient is particularly effective and can cure the disease on its own.

Mr Rogoff likens the situation to that of a terminally ill patient who is offered a risky treatment that may cure the disease but is sure to have nasty long-term side-effects.