Registry to Document Treatment Effectiveness, Safety, Including Prospective Long-term Outcomes in Participants with Progressive Familial Intrahepatic Cholestasis (PFIC) who take Odevixibat (Bylvay)

26/09/2025
03/02/2026
EU PAS number:
EUPAS1000000679
Study
Ongoing
Study type

Study topic

Human medicinal product

Study topic, other

Observational study

Study type

Non-interventional study

Scope of the study

Effectiveness study (incl. comparative)
Safety study (incl. comparative)

Data collection methods

Primary data collection
Non-interventional study

Non-interventional study design

Case-only
Study drug and medical condition

Study drug International non-proprietary name (INN) or common name

ODEVIXIBAT

Anatomical Therapeutic Chemical (ATC) code

(A05AX05) odevixibat
odevixibat

Medical condition to be studied

Progressive familial intrahepatic cholestasis
Population studied

Short description of the study population

The registry population will comprise participants with PFIC (all types) enrolled into the Ipsen odevixibat PFIC registry. Participants with PFIC who have been prescribed odevixibat by their treating physician will be eligible

Age groups

  • In utero
  • Paediatric Population (< 18 years)
    • Neonate
      • Preterm newborn infants (0 – 27 days)
      • Term newborn infants (0 – 27 days)
    • Infants and toddlers (28 days – 23 months)
    • Children (2 to < 12 years)
    • Adolescents (12 to < 18 years)
  • Adult and elderly population (≥18 years)
    • Adults (18 to < 65 years)
      • Adults (18 to < 46 years)
      • Adults (46 to < 65 years)
    • Elderly (≥ 65 years)
      • Adults (65 to < 75 years)
      • Adults (75 to < 85 years)
      • Adults (85 years and over)

Estimated number of subjects

10
Study design details

Study design

This study will collect information from people with Progressive Familial Intrahepatic Cholestasis (PFIC) as they use odevixibat in their daily lives.

Main study objective

To evaluate the long-term safety of odevixibat based on adverse events (AEs).

Outcomes

Primary Outcome Measure:
1.Percentage of participants experiencing Adverse Events (AEs)
An Adverse event (AE) is any untoward medical occurrence, temporally associated with the use of study intervention, whether or not related to the study intervention.
[Time Frame: From first ICF signature and up to end of data collection (approximately 7 years of data collection)]
Secondary Outcome Measures:
2. Event-free survival (EFS)
EFS is defined as time from the start of odevixibat treatment to the first occurrence of surgical biliary diversion, liver transplant, or death
[Time Frame: From first ICF signature and up to end of data collection (approximately 7 years of data collection)]
3. Surgical biliary diversion-free survival
Surgical biliary diversion-free survival is defined as time from the start of odevixibat treatment to the first occurrence of surgical biliary diversion or death
[Time Frame: From first ICF signature and up to end of data collection (approximately 7 years of data collection)]
4. Liver transplant-free survival
Liver transplant-free survival is defined as time from the start of odevixibat treatment to the first occurrence of liver transplant or death
[Time Frame: From first ICF signature and up to end of data collection (approximately 7 years of data collection)]
5. Overall survival (OS)
OS is defined as the time from the start of odevixibat treatment to death
[Time Frame: From first ICF signature and up to end of data collection (approximately 7 years of data collection)]

Data analysis plan

No formal sample size calculations have been performed for this registry. Enrolment for this registry will be based on the number of participants prescribed odevixibat and their willingness to participate in the registry, but the goal will be to enrol a minimum of 10 participants with PFIC (all types) in South Korea