A Study to Evaluate the Safety and Tolerability of Maralixibat in Infant Participants With Cholestatic Liver Diseases Including Progressive Familial Intrahepatic Cholestasis (PFIC) and Alagille Syndrome (ALGS). (RISE)
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ClinicalTrials.gov Identifier: NCT04729751 |
Recruitment Status :
Active, not recruiting
First Posted : January 28, 2021
Last Update Posted : May 19, 2023
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Condition or disease | Intervention/treatment | Phase |
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Progressive Familial Intrahepatic Cholestasis Alagille Syndrome Cholestatic Liver Disease | Drug: Maralixibat | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 12 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Intervention Model Description: | Single group with 2 cohorts - ≥ 6 participants each from ALGS and PFIC. |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Open-Label, Phase 2 Study to Evaluate the Safety and Tolerability of Maralixibat in the Treatment of Infants With Cholestatic Liver Diseases Including Progressive Familial Intrahepatic Cholestasis and Alagille Syndrome |
Actual Study Start Date : | September 9, 2021 |
Estimated Primary Completion Date : | July 2023 |
Estimated Study Completion Date : | May 2024 |

Arm | Intervention/treatment |
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Experimental: Maralixibat
Participants will receive up to 600 μg/kg twice daily (PFIC) or up to 400 μg/kg once daily (ALGS) over 13 weeks in the core study and for the duration of the Long Term Extension (LTE) where applicable.
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Drug: Maralixibat
Maralixibat chloride provided in the form of an oral solution (i.e., 5, 10, 15, and 20 mg/mL)
Other Name: Formerly LUM001 and SHP625 |
- Frequency of treatment-emergent adverse events [TEAEs] [ Time Frame: From Baseline through to Week 13 ]
- Change in fasting serum bile acid (sBA) levels [ Time Frame: From Baseline through to Week 13 ]
- To evaluate the effect on liver enzymes (ALT, AST) and bilirubin [ Time Frame: From Baseline through to Week 13 ]
- To evaluate the effect on LSVs [ Time Frame: From Baseline through to Week 13 ]
- To assess the plasma level of maralixibat in infant participants [ Time Frame: At Baseline, Week 6, Week 10, Week 13 or Early Termination Visit ]

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Ages Eligible for Study: | 0 Days to 364 Days (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Body weight of ≥2.5 kg
- <12 months of age at the baseline visit (ROW). >31 days and <12 months of age at the baseline visit (US).
- Gestational age ≥36 weeks at birth. For children born with gestational age between 32 and 36 weeks, a postmenstrual age of ≥36 weeks is required.
- Diagnosis of PFIC or ALGS
Exclusion criteria:
- Predicted complete absence of bile salt excretion pump (BSEP) function
- History of surgical disruption of the enterohepatic circulation
- History of liver transplant or imminent need for liver transplant
- Decompensated cirrhosis
- Presence of any other disease or condition known to interfere with the absorption, distribution, metabolism, or excretion of drugs, including bile salt metabolism in the intestine (e.g., inflammatory bowel disease), per investigator discretion
- Presence of other significant liver disease or any other conditions or abnormalities which, in the opinion of the investigator or medical monitor, may compromise the safety of the participant or interfere with the participant's participation in or completion of the study

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04729751
United States, California | |
Children Hospital LA | |
Los Angeles, California, United States, 90027 | |
University of California - San Francisco | |
San Francisco, California, United States, 94158 | |
United States, District of Columbia | |
Medstar Georgetown University Hospital | |
Washington, District of Columbia, United States, 20007 | |
United States, Louisiana | |
Ochsner Hospital for Children | |
New Orleans, Louisiana, United States, 70121 | |
United States, Pennsylvania | |
Children's Hospital of Pittsburgh | |
Pittsburgh, Pennsylvania, United States, 15224 | |
United States, Texas | |
Texas Children's Hospital | |
Houston, Texas, United States, 77030 | |
United States, Washington | |
Seattle Children's Hospital | |
Seattle, Washington, United States, 98105 | |
Belgium | |
Cliniques Universitaires Saint-Luc | |
Brussels, Belgium | |
Brazil | |
Sociedade Beneficente de Senhoras - Hospital Sírio-Libanês | |
São Paulo, Brazil, 01308-000 | |
France | |
Hôpital Kremlin Bicêtre | |
Le Kremlin-Bicêtre, France | |
Hopital Necker | |
Paris, France | |
Mexico | |
Consultorio de Joshue David Covarrubias Esquer | |
Zapopan, Mexico, 45050 | |
Poland | |
Instytut Pomnik-Centrum Zdrowia Dziecka | |
Warsaw, Poland | |
United Kingdom | |
King's College Hospital | |
London, United Kingdom |
Responsible Party: | Mirum Pharmaceuticals, Inc. |
ClinicalTrials.gov Identifier: | NCT04729751 |
Other Study ID Numbers: |
MRX-801 2020-004628-40 ( EudraCT Number ) |
First Posted: | January 28, 2021 Key Record Dates |
Last Update Posted: | May 19, 2023 |
Last Verified: | May 2023 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
PFIC ALGS Maralixibat Bile Duct Diseases |
Liver Diseases Biliary Tract Diseases Pediatric |
Liver Diseases Cholestasis Cholestasis, Intrahepatic Alagille Syndrome Syndrome Disease Pathologic Processes Digestive System Diseases |
Bile Duct Diseases Biliary Tract Diseases Heart Defects, Congenital Cardiovascular Abnormalities Cardiovascular Diseases Abnormalities, Multiple Congenital Abnormalities Genetic Diseases, Inborn |