I gruppen behandlet med sapropterin var det gennemsnitlige (+ SD) maksimalt tolererede fenylalaninindtag via kosten 38, 406 + 21, 606 mg/ kg daglig under behandling med sapropterindihydrochlorid sammenlignet med 15, 660 + 7, 159 mg/ kg daglig før behandlingsstart.
For the sapropterin treatment group, the mean ± SD total dietary phenylalanine tolerance was 38.406 ± 21.606 mg/ kg/ day during treatment with sapropterin dihydrochloride 20 mg/ kg/ day compared to 15.660 ± 7.159 mg/ kg/ day before treatment.