Odevixibat for the Treatment of Progressive Familial Intrahepatic Cholestasis

To provide treatment access to patients with PFIC in the US who have pruritus and elevated serum bile acids and who are not able to enroll in A4250-008 (PEDFIC2) for the following reasons: 1) Do not meet eligibility criteria for PEDFIC 2; 2) Are not able to get to a PEDFIC 2 site for geographical reasons, and 3) Do meet the eligibility criteria for PEDFIC 2 after recruitment has been completed

Inclusion Criteria: 1. A male or female patient of any age, with a clinical diagnosis of PFIC, and with a body weight ≥5 kg at Screening visit 2. Patient must have a clinical diagnosis of PFIC 3. Patient must have clinically confirmed pruritus 4. Patient must have elevated serum bile acid levels, specifically measured to be ≥2 × the upper limit of normal (ULN) prior to start of medication 5. Patient and/or legal guardian must sign informed consent (and assent) as appropriate. Patients who turn 18 years of age (or legal age per country) during Exclusion Criteria: 1. Patient is expected to have a liver transplant within 6 months of Screening 2. Decompensated liver disease, coagulopathy, history or presence of clinically significant ascites, variceal hemorrhage, and/or encephalopathy 3. International normalized ratio (INR) \>1.4 (the patient may be treated with Vitamin K intravenously, and if INR is ≤1.4 at resampling the patient may be started on program medication) 4. Serum ALT \>10 × ULN at Screening 5. Serum ALT \>15 × ULN at any time point during the last 6 months unless an alternate etiology was confirmed for the elevation 6. Total bilirubin \>10 × ULN at Screening 7. Any patient who is pregnant, lactating, or planning to get pregnant 8. Patients who qualify for enrollment in other Phase 2 or Phase 3 trials intended to support marketing approval in PFIC