Inborn error in primary bile acid synthesis

This is a study in a small population of children who have inborn errors of bile acid synthesis who are currently taking established doses of the currently used cholic acid capsules prepared at the Cincinnati Children's Hospital Pharmacy. The study is designed to compare the efficacy of these currently used capsules with the efficacy of the same treatment provided in a cholic acid capsule that is made by a company that will be marketed after FDA approval.
At baseline, patients receive established doses of cholic acid capsules prepared at the Cincinnati Children's Hospital Medical Center Pharmacy. During the study, patients receive the same treatment provided in the to-be-marketed (TBM) cholic acid capsule. Hence, patients serve as their own controls, with baseline values presenting the reference value (CCHMC cholic acid capsule) and values after 30 days treatment presenting the value for the investigational treatment (TBM cholic acid capsule).

The primary purpose of the study is to evaluate the therapeutic efficacy and safety of cholic acid in subjects with identified inborn errors of bile acid synthesis.