Det skal også foretage en nærmere undersøgelse af lægemidlet hos tidligere behandlede patienter og gennemføre en undersøgelse af børn under 6 år.
The company that makes BeneFIX will keep a register of all new patients who are treated with BeneFIX in Europe; they will also study the medicine in previously-treated patients in greater details, and carry out a study in children under the age of 6.