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Seladelpar (MBX-8025) in Subjects With Primary Biliary Cholangitis (PBC)

An 8-week, Dose Ranging, Open Label, Randomized, Phase 2 Study With a 44-week Extension, to Evaluate the Safety and Efficacy of MBX-8025 in Subjects With Primary Biliary Cholangitis (PBC) and an Inadequate Response to or Intolerance to Ursodeoxycholic Acid (UDCA)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02955602
Enrollment
119
Registered
2016-11-04
Start date
2016-11-28
Completion date
2019-07-08
Last updated
2022-07-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary Biliary Cirrhosis

Keywords

PBC, Primary Biliary Cholangitis (PBC)

Brief summary

An 8-week, dose ranging, open label, randomized, Phase 2 study with a 44-week extension, to evaluate the safety and efficacy of MBX-8025 in subjects with Primary Biliary Cholangitis (PBC) and an inadequate response to or intolerance to ursodeoxycholic acid (UDCA)

Detailed description

Primary: To evaluate the safety and efficacy of MBX-8025 2 mg, 5 mg, and 10 mg over 8 weeks of treatment Secondary: To evaluate the safety and efficacy of MBX-8025 2 mg, 5 mg, and 10 mg over 12 and 26 weeks of treatment To evaluate the safety and efficacy of MBX-8025 2 mg, 5 mg, and 10 mg over 52 weeks of treatment To evaluate the pharmacokinetics (PK) of MBX-8025 Exploratory: To evaluate the effect of MBX-8025 on bile acids, additional markers of inflammation and renal function MBX-8025 doses of 1 mg and 15 mg may be evaluated if dose adjustment occurs

Interventions

DRUGMBX-8025 2 mg Capsule

Initial 8-week treatment: • MBX-8025 2 mg Extension: The 2 mg group will be started after safety and efficacy review of the 5 mg and the 10 mg groups has been completed. Subjects will initially enter the extension on their assigned dose. The dose might be up- or down-titrated after safety and efficacy data review of the first 8 weeks of treatment. During the extension, a subject's dose might be re-adjusted for safety or efficacy reasons.

DRUGMBX-8025 5 mg Capsule

Initial 8-week treatment: • MBX-8025 5 mg Extension: Subjects will initially enter the extension on their assigned dose. The dose might be up- or down-titrated after safety and efficacy data review of the first 8 weeks of treatment. During the extension, a subject's dose might be re-adjusted for safety or efficacy reasons.

DRUGMBX-8025 10 mg Capsule

Initial 8-week treatment: • MBX-8025 10 mg Extension: Subjects will initially enter the extension on their assigned dose. The dose might be up- or down-titrated after safety and efficacy data review of the first 8 weeks of treatment. During the extension, a subject's dose might be re-adjusted for safety or efficacy reasons.

Sponsors

Gilead Sciences
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Must have given written informed consent (signed and dated) and any authorizations required by local law 2. 18 to 75 years old (inclusive) 3. Male or female with a diagnosis of PBC, by at least two of the following criteria: * History of AP above ULN for at least six months * Positive AMA titers (\>1/40 on immunofluorescence or M2 positive by enzyme linked immunosorbent assay (ELISA) or positive PBC-specific antinuclear antibodies * Documented liver biopsy result consistent with PBC 4. On a stable and recommended dose of UDCA for the past twelve months or intolerant to UDCA 5. AP ≥ 1.67 × ULN 6. Females of reproductive potential must use at least one barrier contraceptive and a second effective birth control method during the study and for at least 90 days after the last dose. Male subjects who are sexually active with female partners of reproductive potential must use barrier contraception and their female partners must use a second effective birth control method during the study and for at least 90 days after the last dose

Exclusion criteria

1. A medical condition, other than PBC, that in the investigator's opinion would preclude full participation in the study or confound its results (e.g., cancer on active treatment) 2. AST or ALT \> 3 × ULN 3. Total bilirubin \> 2.0 mg/dL 4. Total bilirubin \> ULN AND albumin \< LLN with the exception to subjects with Gilbert's Syndrome. Subjects with Gilbert's syndrome are excluded if Direct Bilirubin \> ULN. 5. Auto-immune hepatitis 6. Primary sclerosing cholangitis 7. Known history of alpha-1-Antitrypsin deficiency 8. Known history of chronic viral hepatitis 9. Creatine kinase above ULN 10. Serum creatinine above ULN 11. For females, pregnancy or breast-feeding 12. Use of colchicine, methotrexate, azathioprine, or systemic steroids in the two months preceding screening 13. Current use of fibrates or simvastatin 14. Current use of obeticholic acid 15. Use of an experimental or unapproved treatment for PBC 16. Use of experimental or unapproved immunosuppressant 17. Adverse event leading to MBX-8025 discontinuation from CymaBay's phase 2 PBC study (CB8025-21528) 18. Any other condition(s) that would compromise the safety of the subject or compromise the quality of the clinical study, as judged by the Investigator

Design outcomes

Primary

MeasureTime frameDescription
Relative Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 88 weeksRelative change from baseline in serum ALP levels at Week 8 (endpoint). The modified Intent-to-Treat (mITT) analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment. n, denotes number of subjects evaluable for the respective timepoints

Secondary

MeasureTime frameDescription
Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 Weeks12 weeks and 52 weeksChange from baseline in AST levels at endpoint was reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 Weeks12 weeks and 52 weeksChange from baseline in ALT levels at endpoint was reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 Weeks12 weeks and 52 weeksChange from baseline in GGT levels at endpoint was reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 Weeks12 weeks and 52 weeksChange from baseline in TB levels at endpoint is being reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total Bilirubin12 Weeks and 52 WeeksParticipant meets composite endpoint is defined by participant meets all of the following criteria: * ALP \< 1.67 × upper limit of normal (ULN) * Total Bilirubin within normal limit * \> 15% decrease in ALP Endpoint of Alkaline Phosphatase and Total Bilirubin by Visit (mITT Population)
Percentage of Participants Meet Published PBC Response Criteria - Paris I12 weeks and 52 weeksPercentage of participants with response based on Paris I risk score was defined as ALP less than or equal to (≤) 3x ULN and aspartate aminotransferase (AST) less than or equal to (≤) 2 x ULN and Total Bilirubin ≤ 1 mg/dL. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Percentage of Participants Meet Published PBC Response Criteria - Paris II12 weeks and 52 weeksPercentage of participants with response based on Paris II risk score was defined as ALP≤1.5xULN and AST≤1.5xULN and Total Bilirubin ≤ 1 mg/dL. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Percentage of Participants Meet Published PBC Response Criteria - Toronto I12 weeks and 52 weeksPercentage of participants with response based on Toronto I risk score defined as ALP ≤ 1.67 x ULN. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 5212 weeks and 52 weeksAbsolute change in ALP from baseline to Weeks 12 and 52 The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 5212 weeks and 52 weeksVAS is the commonly used graphic tool for self-reporting of pruritus intensity in patients. VAS is a simple to use, validated, reliable and widely applicable tool that does not determine the impact of pruritus to quality of life. It comprises of a 100-mm horizontal line labelled as no symptom on left end and worst imaginable symptom on right end. Based on the intensity of the itch patient is instructed to draw a vertical line on the horizontal scale having a range \[VAS values (unit: mm) ranging from 0 to 100, where 0 represents no itching and 100 worst possible itching\]. The modified Intent-to-Treat (mITT) analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 5212 weeks and 52 weeksThe PBC-40 QoL questionnaire is a disease-specific health-related tool developed for measuring the psychometric profile in PBC patients. It has 10 domains and 43 questions relevant to PBC, including Cognitive, Social, Emotional Function, Fatigue, Itch, and Other Symptoms. Questions in domains: 1) digestion and diet (questions 1-3); 2) experiences (questions 4-7); 3) itching (questions 8-10); 4) fatigue (questions 11-18); 5) effort and planning (questions 19-21); 6) memory and concentration (questions 22-27); 7) affects to you as person (questions 28-33); 8) affects to your social life (questions 34-37); 9) overall impact on your life (questions 38-40); 10) general health and well-being (questions A-C). Within a domain, items are scored from 1 to 5 and the individual item scores are summed to give a total domain score. High scores represent high impact and low scores low impact of PBC on QoL (mITT Population).
Percentage of Participants Meet Published PBC Response Criteria - Barcelona12 weeks and 52 weeksPercentage of participants with response based on Barcelona risk scores was defined as Normalization of ALP or a Decrease of ALP ≥ 40%. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Absolute Change in MELD Score From Baseline to 12 Weeks and 52 Weeks12 weeks and 52 weeksChange from baseline to 12 weeks and 52 weeks in Model for End-stage Liver Disease (MELD) Score (mITT Population) The MELD score ranges from 6 to 40 and is a measure of how severe a patient's liver disease is. The higher the score, the more likely the patients will need a liver transplant. A calculated prognostic risk factor used to assess the potential need for a liver transplant. MELD(i) score = 10\*\[0.957\*ln(creatinine mg/dL) + 0. 378\*ln(total bilirubin mg/dL) + 1.120\*ln (INR) + 0.643\]. If MELD(i) is less than or equal to 11 then MELD = MELD(i). If MELD(i) is greater than 11 then MELD = MELD(i) + (1.32 \*(137 - (Na)) - (0.033\*MELD(i)\*(137 - Na))
Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 Weeks12 weeks and 52 weeksChange from Baseline to 12 weeks and 52 weeks in Global PBC Study Group (GLOBE) score (mITT Population) The GLOBE score is a validated risk assessment tool providing an estimate of transplant-free survival for patients with PBC. It was developed by the Global PBC Study Group using Cox regression model on over 4,000 patients with PBC. Lower GLOBE score predicts lower risk. It is calculated from the following equation: GLOBE score = (0.044378 \* age + 0.93982 \* LN(total bilirubin/ULN) +(0.335648 \* LN(alkaline phosphatase/ULN)) - 2.266708 \* albumin /LLN -0.002581 \* platelet count per 109/L) + 1.216865
Participants Meet Rotterdam Criteria12 weeks and 52 weeksparticipants with Response Based on Rotterdam Criteria at Weeks 12 and 52 Rotterdam Published PBC Response Criteria by Visit (mITT Population) Rotterdam criteria: Early (normal total bilirubin and normal albumin), Moderately advanced (either abnormal albumin or abnormal total bilirubin), and Advanced (both abnormal albumin and abnormal total bilirubin). From Early stage to Moderate Stage and to Advanced Stage, it becomes worse and worse in abnormality.
Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 5212 weeks and 52 weeksPercentage of participants with Response Defined by Composite Endpoint (ALP\< 1.67 \* Upper Limit of Normal \[ULN\] at Endpoint, Total Bilirubin \[BIL\] within Normal Limits at Endpoint, and Greater Than Equal To \[≥\] 15% ALP Reduction) from Baseline to Week 12 and Week 52 The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
Percent Change in Serum Alkaline Phosphatase (ALP)12 weeks and 52 weeksPercent change in ALP from baseline to Weeks 12 and 52 The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.
UK-PBC Risk Score Value12 weeks and 52 weeksThe UK-PBC Risk Score at endpoint is defined by the mean percentage risk that a PBC patient treated with ursodeoxycholic acid (UDCA) would develop liver failure requiring liver transplantation in 5, 10 and 15 years from diagnosis. The higher the score might indicate higher risk to death or live transplantation. Formula used for UK-PBC risk score = 1- 0.982 \^EXP(0.0287854\*(ALP12 x ULN-1.722136304) - 0.0422873\*(((TA12 xULN/10)\^-1) - 8.675729006) + 1.4199 \* (LN(BIL12 x ULN/10)+2.709607778)-1.960303\*(Albumin x LLN-1.17673001)-0.4161954\*(Platelet x LLN-1.873564875)). Where, Baseline survivor function = 0.982, 0.941, and 0.893 for 5 years, 10 years and 15 years respectively. ALP12, TA12 and BIL12 refers to the ALP, transaminases (ALT, AST), and total bilirubin assessments, respectively. The modified Intent-to-Treat (mITT) analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Countries

Canada, Germany, United Kingdom, United States

Participant flow

Pre-assignment details

A total of 192 subjects were screened of which 121 subjects randomized (2 subjects were not treated) into the study and 71 were screen failures. Subjects were randomized to the 5 and 10 mg treatment groups for entry to the 8-week initial treatment period study, while those in the 2 mg treatment group entered after being sequentially assigned their dose

Participants by arm

ArmCount
MBX-8025 (2 mg)
MBX-8025 2 mg capsule once daily MBX-8025 2 mg Capsule: Initial 8-week treatment: • MBX-8025 2 mg Subjects received two seladelpar 1 milligram (mg) capsules orally once daily for 8 weeks with a 44-week extension period. Dose up-titration for efficacy reasons could be made after 12 weeks of treatment up to 10 mg.
11
MBX-8025 (5 mg)
MBX-8025 5 mg capsule once daily MBX-8025 5 mg Capsule: Initial 8-week treatment: • MBX-8025 5 mg Subjects were randomized to receive one seladelpar 5 mg capsule orally once daily for 8 weeks with a 44-week extension period. Dose up-titration to 10 mg for efficacy reasons could be made after 12 weeks of treatment.
53
MBX-8025 (10 mg)
MBX-8025 10 mg capsule once daily MBX-8025 10 mg Capsule: Initial 8-week treatment: • MBX-8025 10 mg Subjects were randomized to receive one seladelpar 10 mg capsule orally once daily for 8 weeks with a 44-week extension period.
55
Total119

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event030
Overall StudyLost to Follow-up001
Overall StudyOther013
Overall StudyWithdrawal of informed consent132

Baseline characteristics

CharacteristicMBX-8025 (5 mg)MBX-8025 (2 mg)MBX-8025 (10 mg)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
12 Participants3 Participants14 Participants29 Participants
Age, Categorical
Between 18 and 65 years
41 Participants8 Participants41 Participants90 Participants
Age, Continuous57.5 years
STANDARD_DEVIATION 8.1
55.2 years
STANDARD_DEVIATION 9.6
57.4 years
STANDARD_DEVIATION 9.7
56.4 years
STANDARD_DEVIATION 9.6
Race/Ethnicity, Customized
American Indian or Alaska native
0 Subjects0 Subjects1 Subjects1 Subjects
Race/Ethnicity, Customized
Asian
2 Subjects0 Subjects1 Subjects3 Subjects
Race/Ethnicity, Customized
Black or African-American
1 Subjects0 Subjects3 Subjects4 Subjects
Race/Ethnicity, Customized
Multiple
0 Subjects0 Subjects1 Subjects1 Subjects
Race/Ethnicity, Customized
Other
0 Subjects1 Subjects0 Subjects1 Subjects
Race/Ethnicity, Customized
White
50 Subjects10 Subjects49 Subjects109 Subjects
Region of Enrollment
Canada
5 participants0 participants1 participants6 participants
Region of Enrollment
Germany
4 participants0 participants7 participants11 participants
Region of Enrollment
United Kingdom
5 participants11 participants4 participants20 participants
Region of Enrollment
United States
39 participants0 participants43 participants82 participants
Sex: Female, Male
Female
51 Participants11 Participants50 Participants112 Participants
Sex: Female, Male
Male
2 Participants0 Participants5 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 110 / 530 / 55
other
Total, other adverse events
11 / 1145 / 5347 / 55
serious
Total, serious adverse events
1 / 118 / 535 / 55

Outcome results

Primary

Relative Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 8

Relative change from baseline in serum ALP levels at Week 8 (endpoint). The modified Intent-to-Treat (mITT) analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment. n, denotes number of subjects evaluable for the respective timepoints

Time frame: 8 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureValue (MEAN)Dispersion
MBX-8025 (2 mg)Relative Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 8-26.06 percentage change from baselineStandard Deviation 9.15
MBX-8025 (5 mg)Relative Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 8-33.38 percentage change from baselineStandard Deviation 17.81
MBX-8025 (10 mg)Relative Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 8-41.42 percentage change from baselineStandard Deviation 13.05
Comparison: The analyses will assess the change from baseline in each treatment group and will assess the hypothesis that there are no differences in the percent change in ALP serum level between seladelpar 2 mg and 5 mg treatment groups after 8 weeks of treatment.p-value: =0.2242ANCOVA
Comparison: The analyses will assess the change from baseline in each treatment group and will assess the hypothesis that there are no differences in the percent change in ALP serum level between seladelpar 2 mg and 10 mg treatment groups after 8 weeks of treatmentp-value: =0.0021ANCOVA
Comparison: The analyses will assess the change from baseline in each treatment group and will assess the hypothesis that there are no differences in the percent change in ALP serum level between seladelpar 5 mg and 10 mg treatment groups after 8 weeks of treatmentp-value: =0.0024ANCOVA
Secondary

Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52

Absolute change in ALP from baseline to Weeks 12 and 52 The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population: The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52Absolute Change at Week 12-68.318 U/LStandard Deviation 63.276
MBX-8025 (2 mg)Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52Absolute Change at Week 52-101.150 U/LStandard Deviation 107.956
MBX-8025 (5 mg)Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52Absolute Change at Week 12-135.902 U/LStandard Deviation 150.954
MBX-8025 (5 mg)Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52Absolute Change at Week 52-158.310 U/LStandard Deviation 143.668
MBX-8025 (10 mg)Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52Absolute Change at Week 12-127.867 U/LStandard Deviation 60.284
MBX-8025 (10 mg)Absolute Change From Baseline in Serum Alkaline Phosphatase (ALP) at Week 12 and Week 52Absolute Change at Week 52-133.760 U/LStandard Deviation 76.151
Secondary

Absolute Change in MELD Score From Baseline to 12 Weeks and 52 Weeks

Change from baseline to 12 weeks and 52 weeks in Model for End-stage Liver Disease (MELD) Score (mITT Population) The MELD score ranges from 6 to 40 and is a measure of how severe a patient's liver disease is. The higher the score, the more likely the patients will need a liver transplant. A calculated prognostic risk factor used to assess the potential need for a liver transplant. MELD(i) score = 10\*\[0.957\*ln(creatinine mg/dL) + 0. 378\*ln(total bilirubin mg/dL) + 1.120\*ln (INR) + 0.643\]. If MELD(i) is less than or equal to 11 then MELD = MELD(i). If MELD(i) is greater than 11 then MELD = MELD(i) + (1.32 \*(137 - (Na)) - (0.033\*MELD(i)\*(137 - Na))

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Absolute Change in MELD Score From Baseline to 12 Weeks and 52 WeeksWeek 52-0.7 Change from BaselineStandard Deviation 1.6
MBX-8025 (2 mg)Absolute Change in MELD Score From Baseline to 12 Weeks and 52 WeeksWeek 12-0.3 Change from BaselineStandard Deviation 1.6
MBX-8025 (5 mg)Absolute Change in MELD Score From Baseline to 12 Weeks and 52 WeeksWeek 120.1 Change from BaselineStandard Deviation 1.2
MBX-8025 (5 mg)Absolute Change in MELD Score From Baseline to 12 Weeks and 52 WeeksWeek 520.3 Change from BaselineStandard Deviation 1.1
MBX-8025 (10 mg)Absolute Change in MELD Score From Baseline to 12 Weeks and 52 WeeksWeek 120.1 Change from BaselineStandard Deviation 1
MBX-8025 (10 mg)Absolute Change in MELD Score From Baseline to 12 Weeks and 52 WeeksWeek 520.2 Change from BaselineStandard Deviation 1.2
Secondary

Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52

The PBC-40 QoL questionnaire is a disease-specific health-related tool developed for measuring the psychometric profile in PBC patients. It has 10 domains and 43 questions relevant to PBC, including Cognitive, Social, Emotional Function, Fatigue, Itch, and Other Symptoms. Questions in domains: 1) digestion and diet (questions 1-3); 2) experiences (questions 4-7); 3) itching (questions 8-10); 4) fatigue (questions 11-18); 5) effort and planning (questions 19-21); 6) memory and concentration (questions 22-27); 7) affects to you as person (questions 28-33); 8) affects to your social life (questions 34-37); 9) overall impact on your life (questions 38-40); 10) general health and well-being (questions A-C). Within a domain, items are scored from 1 to 5 and the individual item scores are summed to give a total domain score. High scores represent high impact and low scores low impact of PBC on QoL (mITT Population).

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52General Symptoms, Week 121.9 units on a scaleStandard Deviation 2.7
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52General Symptoms, Week 520.3 units on a scaleStandard Deviation 2.4
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Itch, Week 520.4 units on a scaleStandard Deviation 2.7
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Fatigue, Week 12-1.5 units on a scaleStandard Deviation 6.1
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Fatigue, Week 52-1.2 units on a scaleStandard Deviation 7.8
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Cognitive Function, Week 52-0.7 units on a scaleStandard Deviation 7.6
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Social, Week 52-3.3 units on a scaleStandard Deviation 5.2
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Emotional, Week 12-0.9 units on a scaleStandard Deviation 1.6
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Emotional, Week 52-2.1 units on a scaleStandard Deviation 2.3
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Itch, Week 12-0.4 units on a scaleStandard Deviation 2
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Cognitive Function, Week 12-0.9 units on a scaleStandard Deviation 2.4
MBX-8025 (2 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Social, Week 120.8 units on a scaleStandard Deviation 2.8
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Cognitive Function, Week 52-1.4 units on a scaleStandard Deviation 5.3
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52General Symptoms, Week 12-0.7 units on a scaleStandard Deviation 5.1
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Cognitive Function, Week 12-0.6 units on a scaleStandard Deviation 5.7
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Fatigue, Week 12-2.1 units on a scaleStandard Deviation 10.4
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52General Symptoms, Week 52-1.4 units on a scaleStandard Deviation 4.4
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Social, Week 12-0.5 units on a scaleStandard Deviation 7.9
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Emotional, Week 12-1.0 units on a scaleStandard Deviation 2.6
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Itch, Week 52-1.3 units on a scaleStandard Deviation 3.2
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Fatigue, Week 52-3.0 units on a scaleStandard Deviation 8.5
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Emotional, Week 52-1.3 units on a scaleStandard Deviation 2.7
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Social, Week 52-1.6 units on a scaleStandard Deviation 7.2
MBX-8025 (5 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Itch, Week 12-0.5 units on a scaleStandard Deviation 3.4
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Social, Week 52-1.6 units on a scaleStandard Deviation 6.2
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Fatigue, Week 52-3.4 units on a scaleStandard Deviation 6.3
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Cognitive Function, Week 12-0.7 units on a scaleStandard Deviation 2.8
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Cognitive Function, Week 52-0.6 units on a scaleStandard Deviation 2.5
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Social, Week 12-1.0 units on a scaleStandard Deviation 6.3
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52General Symptoms, Week 52-0.1 units on a scaleStandard Deviation 4.4
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Emotional, Week 52-0.9 units on a scaleStandard Deviation 2.1
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52General Symptoms, Week 12-0.5 units on a scaleStandard Deviation 3.6
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Itch, Week 12-0.8 units on a scaleStandard Deviation 3.1
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Itch, Week 52-1.4 units on a scaleStandard Deviation 3.7
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Emotional, Week 12-0.8 units on a scaleStandard Deviation 2.1
MBX-8025 (10 mg)Change From Baseline in PBC-40 Quality of Life (QoL) at Week 12 and Week 52Fatigue, Week 12-3.0 units on a scaleStandard Deviation 5.2
Secondary

Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52

VAS is the commonly used graphic tool for self-reporting of pruritus intensity in patients. VAS is a simple to use, validated, reliable and widely applicable tool that does not determine the impact of pruritus to quality of life. It comprises of a 100-mm horizontal line labelled as no symptom on left end and worst imaginable symptom on right end. Based on the intensity of the itch patient is instructed to draw a vertical line on the horizontal scale having a range \[VAS values (unit: mm) ranging from 0 to 100, where 0 represents no itching and 100 worst possible itching\]. The modified Intent-to-Treat (mITT) analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52Week 12-3.7 score on a scaleStandard Deviation 6.4
MBX-8025 (2 mg)Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52Week 52-3.3 score on a scaleStandard Deviation 11.7
MBX-8025 (5 mg)Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52Week 12-5.5 score on a scaleStandard Deviation 25
MBX-8025 (5 mg)Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52Week 52-9.6 score on a scaleStandard Deviation 22.5
MBX-8025 (10 mg)Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52Week 12-12.3 score on a scaleStandard Deviation 22.3
MBX-8025 (10 mg)Change From Baseline in Pruritus Visual Analog Score (VAS) at Week 12 and Week 52Week 52-16.5 score on a scaleStandard Deviation 23
Secondary

Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 Weeks

Change from baseline in ALT levels at endpoint was reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 WeeksWeek 12-5.59 U/LStandard Deviation 16.07
MBX-8025 (2 mg)Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 WeeksWeek 52-14.30 U/LStandard Deviation 25.12
MBX-8025 (5 mg)Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 WeeksWeek 12-10.48 U/LStandard Deviation 21.41
MBX-8025 (5 mg)Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 WeeksWeek 52-17.29 U/LStandard Deviation 17.46
MBX-8025 (10 mg)Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 WeeksWeek 12-10.87 U/LStandard Deviation 20.25
MBX-8025 (10 mg)Change in Alanine Aminotransferase (ALT) From Baseline to 12 Weeks and 52 WeeksWeek 52-15.32 U/LStandard Deviation 13.89
Secondary

Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 Weeks

Change from baseline in AST levels at endpoint was reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 WeeksWeek 12-2.50 U/LStandard Deviation 16.72
MBX-8025 (2 mg)Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 WeeksWeek 52-7.05 U/LStandard Deviation 10.5
MBX-8025 (5 mg)Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 WeeksWeek 12-1.13 U/LStandard Deviation 24.28
MBX-8025 (5 mg)Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 WeeksWeek 52-6.18 U/LStandard Deviation 13.98
MBX-8025 (10 mg)Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 WeeksWeek 12-3.35 U/LStandard Deviation 10.55
MBX-8025 (10 mg)Change in Aspartate Aminotransferase (AST) From Baseline to 12 Weeks and 52 WeeksWeek 52-6.14 U/LStandard Deviation 9.18
Secondary

Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 Weeks

Change from baseline in TB levels at endpoint is being reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 WeeksWeek 12-0.010 mg/dLStandard Deviation 0.121
MBX-8025 (2 mg)Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 WeeksWeek 520.002 mg/dLStandard Deviation 0.152
MBX-8025 (5 mg)Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 WeeksWeek 12-0.055 mg/dLStandard Deviation 0.161
MBX-8025 (5 mg)Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 WeeksWeek 52-0.028 mg/dLStandard Deviation 0.263
MBX-8025 (10 mg)Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 WeeksWeek 52-0.068 mg/dLStandard Deviation 0.19
MBX-8025 (10 mg)Change in Bilirubin - Total Bilirubin (TB) From Baseline to 12 Weeks and 52 WeeksWeek 12-0.067 mg/dLStandard Deviation 0.199
Secondary

Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 Weeks

Change from baseline in GGT levels at endpoint was reported. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 WeeksWeek 12-43.68 U/LStandard Deviation 56.87
MBX-8025 (2 mg)Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 WeeksWeek 52-78.60 U/LStandard Deviation 81.59
MBX-8025 (5 mg)Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 WeeksWeek 12-75.35 U/LStandard Deviation 87.57
MBX-8025 (5 mg)Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 WeeksWeek 52-91.37 U/LStandard Deviation 102.23
MBX-8025 (10 mg)Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 WeeksWeek 12-80.82 U/LStandard Deviation 109.06
MBX-8025 (10 mg)Change in Gamma-glutamyl Transferase (GGT) From Baseline to 12 Weeks and 52 WeeksWeek 52-88.08 U/LStandard Deviation 122.14
Secondary

Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 Weeks

Change from Baseline to 12 weeks and 52 weeks in Global PBC Study Group (GLOBE) score (mITT Population) The GLOBE score is a validated risk assessment tool providing an estimate of transplant-free survival for patients with PBC. It was developed by the Global PBC Study Group using Cox regression model on over 4,000 patients with PBC. Lower GLOBE score predicts lower risk. It is calculated from the following equation: GLOBE score = (0.044378 \* age + 0.93982 \* LN(total bilirubin/ULN) +(0.335648 \* LN(alkaline phosphatase/ULN)) - 2.266708 \* albumin /LLN -0.002581 \* platelet count per 109/L) + 1.216865

Time frame: 12 weeks and 52 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 WeeksWeek 52-0.180 units on a scaleStandard Deviation 0.217
MBX-8025 (2 mg)Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 WeeksWeek 12-0.079 units on a scaleStandard Deviation 0.26
MBX-8025 (5 mg)Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 WeeksWeek 12-0.292 units on a scaleStandard Deviation 0.304
MBX-8025 (5 mg)Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 WeeksWeek 52-0.271 units on a scaleStandard Deviation 0.354
MBX-8025 (10 mg)Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 WeeksWeek 12-0.346 units on a scaleStandard Deviation 0.269
MBX-8025 (10 mg)Change in GLOBE PBC Score From Baseline to 12 Weeks and 52 WeeksWeek 52-0.404 units on a scaleStandard Deviation 0.298
Secondary

Participants Meet Rotterdam Criteria

participants with Response Based on Rotterdam Criteria at Weeks 12 and 52 Rotterdam Published PBC Response Criteria by Visit (mITT Population) Rotterdam criteria: Early (normal total bilirubin and normal albumin), Moderately advanced (either abnormal albumin or abnormal total bilirubin), and Advanced (both abnormal albumin and abnormal total bilirubin). From Early stage to Moderate Stage and to Advanced Stage, it becomes worse and worse in abnormality.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Participants Meet Rotterdam CriteriaEarly Stage,12 Weeks11 participants
MBX-8025 (2 mg)Participants Meet Rotterdam CriteriaEarly Stage, 52 weeks10 participants
MBX-8025 (2 mg)Participants Meet Rotterdam CriteriaModerately advanced at 12 Weeks: Either abnormal Albumin or abnormal Total Bilirubin0 participants
MBX-8025 (2 mg)Participants Meet Rotterdam CriteriaModerately advanced: 52 Weeks, Either abnormal Albumin or abnormal Total Bilirubin0 participants
MBX-8025 (2 mg)Participants Meet Rotterdam CriteriaAdvanced: 12 Weeks, Both abnormal Albumin and abnormal Total Bilirubin0 participants
MBX-8025 (2 mg)Participants Meet Rotterdam CriteriaAdvanced: 52 Weeks Both abnormal Albumin and abnormal Total Bilirubin0 participants
MBX-8025 (5 mg)Participants Meet Rotterdam CriteriaAdvanced: 52 Weeks Both abnormal Albumin and abnormal Total Bilirubin3 participants
MBX-8025 (5 mg)Participants Meet Rotterdam CriteriaEarly Stage,12 Weeks38 participants
MBX-8025 (5 mg)Participants Meet Rotterdam CriteriaModerately advanced: 52 Weeks, Either abnormal Albumin or abnormal Total Bilirubin3 participants
MBX-8025 (5 mg)Participants Meet Rotterdam CriteriaAdvanced: 12 Weeks, Both abnormal Albumin and abnormal Total Bilirubin1 participants
MBX-8025 (5 mg)Participants Meet Rotterdam CriteriaEarly Stage, 52 weeks36 participants
MBX-8025 (5 mg)Participants Meet Rotterdam CriteriaModerately advanced at 12 Weeks: Either abnormal Albumin or abnormal Total Bilirubin7 participants
MBX-8025 (10 mg)Participants Meet Rotterdam CriteriaEarly Stage, 52 weeks42 participants
MBX-8025 (10 mg)Participants Meet Rotterdam CriteriaModerately advanced at 12 Weeks: Either abnormal Albumin or abnormal Total Bilirubin9 participants
MBX-8025 (10 mg)Participants Meet Rotterdam CriteriaAdvanced: 52 Weeks Both abnormal Albumin and abnormal Total Bilirubin1 participants
MBX-8025 (10 mg)Participants Meet Rotterdam CriteriaModerately advanced: 52 Weeks, Either abnormal Albumin or abnormal Total Bilirubin5 participants
MBX-8025 (10 mg)Participants Meet Rotterdam CriteriaEarly Stage,12 Weeks40 participants
MBX-8025 (10 mg)Participants Meet Rotterdam CriteriaAdvanced: 12 Weeks, Both abnormal Albumin and abnormal Total Bilirubin0 participants
Secondary

Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total Bilirubin

Participant meets composite endpoint is defined by participant meets all of the following criteria: * ALP \< 1.67 × upper limit of normal (ULN) * Total Bilirubin within normal limit * \> 15% decrease in ALP Endpoint of Alkaline Phosphatase and Total Bilirubin by Visit (mITT Population)

Time frame: 12 Weeks and 52 Weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total BilirubinWeek 1245.5 percentage of participants
MBX-8025 (2 mg)Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total BilirubinWeek 5263.6 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total BilirubinWeek 1248.9 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total BilirubinWeek 5253.3 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total BilirubinWeek 1266.7 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Composite Endpoint Criteria of ALP and Total BilirubinWeek 5267.3 percentage of participants
Secondary

Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52

Percentage of participants with Response Defined by Composite Endpoint (ALP\< 1.67 \* Upper Limit of Normal \[ULN\] at Endpoint, Total Bilirubin \[BIL\] within Normal Limits at Endpoint, and Greater Than Equal To \[≥\] 15% ALP Reduction) from Baseline to Week 12 and Week 52 The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52Week 1245.5 percentage of subjects
MBX-8025 (2 mg)Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52Week 5263.6 percentage of subjects
MBX-8025 (5 mg)Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52Week 1248.9 percentage of subjects
MBX-8025 (5 mg)Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52Week 5253.3 percentage of subjects
MBX-8025 (10 mg)Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52Week 1266.7 percentage of subjects
MBX-8025 (10 mg)Percentage of Participants Meet Composite Endpoint of AP and Total Bilirubin Criteria at Week 12 and Week 52Week 5267.3 percentage of subjects
Secondary

Percentage of Participants Meet Published PBC Response Criteria - Barcelona

Percentage of participants with response based on Barcelona risk scores was defined as Normalization of ALP or a Decrease of ALP ≥ 40%. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - BarcelonaWeek 5245.5 percentage of participants
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - BarcelonaWeek 129.1 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - BarcelonaWeek 1242.6 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - BarcelonaWeek 5266.7 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - BarcelonaWeek 1262.7 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - BarcelonaWeek 5265.3 percentage of participants
Secondary

Percentage of Participants Meet Published PBC Response Criteria - Paris I

Percentage of participants with response based on Paris I risk score was defined as ALP less than or equal to (≤) 3x ULN and aspartate aminotransferase (AST) less than or equal to (≤) 2 x ULN and Total Bilirubin ≤ 1 mg/dL. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IWeek 1281.8 percentage of participants
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IWeek 5290 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IWeek 1276.1 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IWeek 5281.0 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IWeek 1275.5 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IWeek 5279.2 percentage of participants
Secondary

Percentage of Participants Meet Published PBC Response Criteria - Paris II

Percentage of participants with response based on Paris II risk score was defined as ALP≤1.5xULN and AST≤1.5xULN and Total Bilirubin ≤ 1 mg/dL. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IIWeek 1236.4 percentage of participants
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IIWeek 5250.0 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IIWeek 1237.0 percentage of participants
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IIWeek 5254.8 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IIWeek 1259.2 percentage of participants
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - Paris IIWeek 5260.4 percentage of participants
Secondary

Percentage of Participants Meet Published PBC Response Criteria - Toronto I

Percentage of participants with response based on Toronto I risk score defined as ALP ≤ 1.67 x ULN. The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (NUMBER)
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - Toronto IWeek 5263.6 percentage of subjects
MBX-8025 (2 mg)Percentage of Participants Meet Published PBC Response Criteria - Toronto IWeek 1263.6 percentage of subjects
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - Toronto IWeek 1251.1 percentage of subjects
MBX-8025 (5 mg)Percentage of Participants Meet Published PBC Response Criteria - Toronto IWeek 5257.8 percentage of subjects
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - Toronto IWeek 1278.4 percentage of subjects
MBX-8025 (10 mg)Percentage of Participants Meet Published PBC Response Criteria - Toronto IWeek 5271.4 percentage of subjects
Secondary

Percent Change in Serum Alkaline Phosphatase (ALP)

Percent change in ALP from baseline to Weeks 12 and 52 The mITT analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)Percent Change in Serum Alkaline Phosphatase (ALP)Relative Change at Week 52-32.72 percentage ChangeStandard Deviation 22.48
MBX-8025 (2 mg)Percent Change in Serum Alkaline Phosphatase (ALP)Relative Change at Week 12-22.56 percentage ChangeStandard Deviation 13.92
MBX-8025 (5 mg)Percent Change in Serum Alkaline Phosphatase (ALP)Relative Change at Week 52-40.09 percentage ChangeStandard Deviation 24.23
MBX-8025 (5 mg)Percent Change in Serum Alkaline Phosphatase (ALP)Relative Change at Week 12-34.49 percentage ChangeStandard Deviation 20.62
MBX-8025 (10 mg)Percent Change in Serum Alkaline Phosphatase (ALP)Relative Change at Week 12-43.20 percentage ChangeStandard Deviation 12.39
MBX-8025 (10 mg)Percent Change in Serum Alkaline Phosphatase (ALP)Relative Change at Week 52-44.19 percentage ChangeStandard Deviation 15.52
Secondary

UK-PBC Risk Score Value

The UK-PBC Risk Score at endpoint is defined by the mean percentage risk that a PBC patient treated with ursodeoxycholic acid (UDCA) would develop liver failure requiring liver transplantation in 5, 10 and 15 years from diagnosis. The higher the score might indicate higher risk to death or live transplantation. Formula used for UK-PBC risk score = 1- 0.982 \^EXP(0.0287854\*(ALP12 x ULN-1.722136304) - 0.0422873\*(((TA12 xULN/10)\^-1) - 8.675729006) + 1.4199 \* (LN(BIL12 x ULN/10)+2.709607778)-1.960303\*(Albumin x LLN-1.17673001)-0.4161954\*(Platelet x LLN-1.873564875)). Where, Baseline survivor function = 0.982, 0.941, and 0.893 for 5 years, 10 years and 15 years respectively. ALP12, TA12 and BIL12 refers to the ALP, transaminases (ALT, AST), and total bilirubin assessments, respectively. The modified Intent-to-Treat (mITT) analysis set included all randomized subjects with confirmed PBC who received at least one study drug dose and had at least one post baseline ALP evaluation on treatment.

Time frame: 12 weeks and 52 weeks

Population: mITT Population. The mITT population is defined as any enrolled subject who receives at least one dose of medication and has at least one post-baseline AP evaluation and who have confirmed PBC.

ArmMeasureGroupValue (MEAN)Dispersion
MBX-8025 (2 mg)UK-PBC Risk Score Value15 years, week 128.3008 units on a scaleStandard Deviation 3.9932
MBX-8025 (2 mg)UK-PBC Risk Score Value15 years, week 527.8325 units on a scaleStandard Deviation 4.3413
MBX-8025 (2 mg)UK-PBC Risk Score Value5 years, week 521.3145 units on a scaleStandard Deviation 0.7704
MBX-8025 (2 mg)UK-PBC Risk Score Value10 years week 124.5705 units on a scaleStandard Deviation 2.2479
MBX-8025 (2 mg)UK-PBC Risk Score Value5 years, week 121.3929 units on a scaleStandard Deviation 0.6976
MBX-8025 (2 mg)UK-PBC Risk Score Value10 years, week 524.3128 units on a scaleStandard Deviation 2.4649
MBX-8025 (5 mg)UK-PBC Risk Score Value10 years, week 527.2322 units on a scaleStandard Deviation 9.5794
MBX-8025 (5 mg)UK-PBC Risk Score Value5 years, week 122.2553 units on a scaleStandard Deviation 2.5145
MBX-8025 (5 mg)UK-PBC Risk Score Value5 years, week 522.3485 units on a scaleStandard Deviation 3.432
MBX-8025 (5 mg)UK-PBC Risk Score Value15 years, week 1212.4002 units on a scaleStandard Deviation 12.1785
MBX-8025 (5 mg)UK-PBC Risk Score Value15 years, week 5212.3028 units on a scaleStandard Deviation 14.5701
MBX-8025 (5 mg)UK-PBC Risk Score Value10 years week 127.1229 units on a scaleStandard Deviation 7.4904
MBX-8025 (10 mg)UK-PBC Risk Score Value15 years, week 529.9008 units on a scaleStandard Deviation 8.5396
MBX-8025 (10 mg)UK-PBC Risk Score Value10 years week 125.8293 units on a scaleStandard Deviation 5.3605
MBX-8025 (10 mg)UK-PBC Risk Score Value15 years, week 1210.3469 units on a scaleStandard Deviation 9.1269
MBX-8025 (10 mg)UK-PBC Risk Score Value5 years, week 121.8124 units on a scaleStandard Deviation 1.7267
MBX-8025 (10 mg)UK-PBC Risk Score Value5 years, week 521.7244 units on a scaleStandard Deviation 1.6121
MBX-8025 (10 mg)UK-PBC Risk Score Value10 years, week 525.5607 units on a scaleStandard Deviation 5.0092

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026