The purpose of this study is to determine if abatacept (Orencia) is effective in patients with primary biliary cirrhosis who do not respond adequately to standard treatment with ursodeoxycholic acid (UDCA, Urso, Ursodiol, Actigall).
This is an open label, active treatment trial to assess the efficacy and safety of abatacept in subject with PBC who have had an incomplete biochemical response to UDCA. In this trial, 20 subjects with PBC who have had an incomplete biochemical response to UDCA will be assigned to treatment with weekly subcutaneous injections of 125 mg of abatacept. The treatment phase of the study will last 24 weeks with an off-treatment follow up at Week 36. Inclusion criteria include: * Confirmed diagnosis of PBC * Alkaline phosphatase \> 1.67 times the upper limit of normal after 6 months of treatment with UDCA
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
16
125 mg subcutaneously each week for 24 weeks
Univeristy of California Davis Medical Center
Sacramento, California, United States
Biochemical Response
Number of Participants with a decrease of alkaline phosphatase by \> 40%of the Day 0 level at 24 weeks of treatment.
Time frame: Week 24
Drug Safety
Number of participants with any adverse events, clinically significant changes in vital signs, laboratory test abnormalities, and clinical tolerability of the drug.
Time frame: Weeks 2, 4, 12, 24, and 36
Absolute Change in Alkaline Phosphatase
The absolute change in alkaline phosphatase from Day 0 to Week 24.
Time frame: Week 24
Absolute Change in Alanine Transferase (ALT)
The absolute change in alanine transferase (ALT) from Day 0 to Week 24.
Time frame: Week 24
Liver Stiffness Measured by Magnetic Resonance Elastography
Change in liver stiffness measured by magnetic resonance elastography from Day 0 to Week 24.
Time frame: Week 24
Primary Billiary Cholangitis Quality of Life
Change in quality of life measured by change in primary biliary cholangitis (PBC)-40 from Day 0 to Week 24. is a patient-derived, disease specific quality of life measure developed and validated for use in PBC with subscores for domains of symptoms, itch, fatigue, cognition, social, and emotional. Subdomains are summed with a total score range of 36 to 200. Higher scores indicate worse quality of life.
Time frame: Week 24
Percent Change in Alkaline Phosphatase
The percent change in alkaline phosphatase from Day 0 to Week 24.
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Time frame: Week 24
Percent Change in Alanine Transferase (ALT)
The percent change in alanine transferase (ALT) from Day 0 to Week 24.
Time frame: Week 24