Linerixibat and Obeticholic Acid Drug Interaction Study in Healthy Subjects

GlaxoSmithKline19 enrolled

Overview

In participants with inadequate response/intolerance to ursodeoxycholic acid (UDCA) taking obeticholic acid (OCA) who experience pruritus (due to primary biliary cholangitis \[PBC\], OCA, or both) the addition of linerixibat to OCA therapy may be considered following marketing approval. It is therefore important to characterize any potential effect of linerixibat on the pharmacokinetics of OCA in humans at clinically relevant dosages. Accordingly, a drug-drug interaction (DDI) study with linerixibat (potential perpetrator) and OCA (potential victim) will be conducted to inform both future clinical trials with linerixibat and the potential concomitant administration of these drugs in a clinical setting. This is a single-center, one part (with optional second part) open-label, single sequence crossover, drug interaction study to investigate the effect of linerixibat on plasma concentrations of OCA and OCA conjugates in healthy participants. Approximately 19 participants will be enrolled in part A and further 19 participants in part B (if performed) in the study and will have a phone call follow-up till 7-14 days post-last linerixibat dose.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Cholestasis

Interventions

GSK2330672 is available as a tablet with unit dose strength of 45 mg.

Obeticholic acidDRUG

Obeticholic acid is available as a tablet with a unit dose strength of 10 mg (or 5 mg dependent on evaluation of Part A).

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Between 18 and 80 years of age inclusive, at the time of signing the informed consent. * Healthy, as determined by the investigator or medically qualified designee, based on a medical evaluation including medical history, physical examination, vital signs, laboratory tests, and ECG. A participant with a clinical abnormality or laboratory parameter (i.e., outside the reference range for the population being studied), which is not specifically listed in the eligibility criteria, may be included only if the investigator agrees in consultation with the GlaxoSmithKline (GSK) medical monitor and documents in the source documentation that the finding is unlikely to introduce additional risk factors and will not interfere with the study procedures or outcomes. * Body weight \> 50 kilogram (kg) and body mass index (BMI) within the range 18.5 to 32 kg per square meter (inclusive). * Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and protocol. * Male and female- A female participant is eligible to participate if she is not pregnant not breastfeeding, and at least one of the following conditions applies; not a woman of childbearing potential (WOCBP) or a WOCBP who agrees to follow contraceptive guidance during the treatment period and until at least 4 weeks after the last dose of study treatment. The investigator is responsible for review of medical history, menstrual history, and recent sexual activity to decrease the risk for inclusion of a woman with an early undetected pregnancy. Exclusion Criteria: * Any active dermatologic disorder leading to or with the potential to cause pruritus or a recent history of unexplained clinically significant itching locally or generally within the prior 3 months * Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones) and/or confirmed hepatocellular carcinoma or biliary cancer * Participants with a history of cholecystectomy * Current symptomatic cholelithiasis or inflammatory gall bladder disease * Significant history of or current cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, or neurological disorders capable of significantly altering the absorption, metabolism, or elimination of drugs; constituting a risk when taking the study intervention; or interfering with the interpretation of data * Any clinically relevant abnormality identified at the screening medical assessment (physical examination/medical history) clinical laboratory tests, or 12-lead ECG * Current episode, recent history (within 1 month of screening visit), or chronic history of clinically significant diarrhea * Lymphoma, leukaemia, or any malignancy within the past 5 years except for basal cell or squamous epithelial carcinomas of the skin that have been resected with no evidence of metastatic disease for 3 years * Any current medical condition (e.g. psychiatric disorder, senility, dementia, or other condition), clinical or laboratory abnormality, or examination finding that the investigator considers would put the participant at unacceptable risk, which may affect study compliance or prevent understanding of the aims or investigational procedures or possible consequences of the study * Regular use of known drugs of abuse or history of drug abuse or dependence within 6 months of the study * Regular alcohol consumption within 6 months prior to the study defined as an average weekly intake of \>14 units for females and \>21 units for males. One unit is equivalent to 8 gram of alcohol: a glass (approximately \[\~\] 240 milliliter \[mL\]) of beer, 1 small glass (\~100 mL) of wine or 1 (\~25 mL) measure of spirits * History of or regular use of tobacco- or nicotine-containing products (confirmed by smokerlyzer test) in the 3 months prior to screening. * Administration of any IBAT inhibitor (including linerixibat) or OCA in the 3 months prior to screening * Past or intended use of over-the-counter or prescription medication (including vitamins and dietary or herbal supplements) within 7 days (or 14 days if the drug is a potential enzyme inhibitor) or 5 half-lives (whichever is longer) prior to the first dose of study medication, unless approved by the investigator in conjunction with GSK medical monitor. * Current enrollment in a clinical trial, recent participation in a clinical trial and has received an investigational product within 30 days (or 5 half-lives of previous trial intervention, whichever is longer) before the first dose in the current study * Exposure to more than 4 new chemical entities within 12 months before the first dose in the current study. * Screening ALT or AST \>1.5 times the upper limit of normal (ULN) * Bilirubin \>1.5 times ULN (isolated bilirubin \>1.5 times ULN is acceptable if bilirubin is fractionated and direct bilirubin \<35%) * Presence of Hepatitis B surface antigen (HBsAg) at screening or positive Hepatitis C antibody test result at screening or within 3 months of the screening visit * Positive serum pregnancy test at screening or positive urine pregnancy test at admission in WOCBP only * Positive human immunodeficiency virus (HIV) antibody test * QTc \>450 millisecond (msec) on ECG performed at screening. * Positive pre-study drug/alcohol screen or positive drug/alcohol screen at any time during the study. * Female participants unable or unwilling to comply with specific contraception restrictions. * Where participation in the study would result in donation of blood or blood products in excess of 500 mL within a 56-day period. * Unwillingness or inability to follow the procedures outlined in the protocol for the expected duration of study participation. * Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the investigator or medical monitor, contraindicates participation in the study.

Locations (1)

GSK Investigational Site

Cambridge, United Kingdom

Outcomes

Primary Outcomes

Part A- Area Under the Concentration-time Curve From Time 0 to Time of the Last Quantifiable Concentration (AUC[0-t]) for Total-OCA at Steady State: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis. Pharmacokinetic (PK) Parameters Population consisted of all participants for whom pharmacokinetic parameters were derivable.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-t) for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Area Under the Concentration-time Curve From Time 0 to 24 Hour (AUC[0-24]) for Total-OCA at Steady State: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-24) for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Maximum Observed Concentration (Cmax) for Total-OCA at Steady State: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Cmax for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Average Trough Concentration (Ctrough) for Total-OCA at Steady State: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis. Average of Ctrough measurement from study Days 17, 18 and 19 has been presented.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Average Ctrough for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis. Average of Ctrough measurement from study Days 35, 36, 37 and 38 has been presented.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-t) for Total-OCA at Steady State: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-t) for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-24) for Total-OCA at Steady State: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-24) for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Cmax for Total-OCA at Steady State: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Cmax for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Ctrough for Total-OCA at Steady State: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Ctrough for Total-OCA at Steady State: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Secondary Outcomes

Part A- Time to Reach Maximum Observed Plasma Concentration (Tmax) for Total-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Tmax for Total-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Assessment of Steady State Using Ctrough of Total-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 hours and 24 hours (Day 19) post-dose

Part A- Assessment of Steady State Using Ctrough of Total-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of total-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 hours and 24 hours (Day 38) post-dose

Part A- AUC(0-t) for OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Data from ClinicalTrials.gov

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Part A- AUC(0-t) for OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- AUC(0-24) for OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-24) for OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Cmax for OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Cmax for OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Average Ctrough for OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis. Average of Ctrough measurement from study Days 17, 18 and 19 has been presented.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Average Ctrough for OCA: OCA + Linerixibat Arm

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Tmax for OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Tmax for OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- AUC(0-t) for Tauro-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-t) for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- AUC(0-24) for Tauro-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-24) for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Cmax for Tauro-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Cmax for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Average Ctrough for Tauro-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis. Average of Ctrough measurement from study Days 17, 18 and 19 has been presented.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Average Ctrough for Tauro-OCA: OCA + Linerixibat Arm

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Tmax for Tauro-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Tmax for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of tauro-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- AUC(0-t) for Glyco-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-t) for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- AUC(0-24) for Glyco-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- AUC(0-24) for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Cmax for Glyco-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Cmax for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Average Ctrough for Glyco-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis. Average of Ctrough measurement from study Days 17, 18 and 19 has been presented.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Average Ctrough for Glyco-OCA: OCA + Linerixibat Arm

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Tmax for Glyco-OCA: OCA Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part A- Tmax for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of glyco-OCA. Pharmacokinetic parameters were calculated using standard non-compartmental analysis.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Tmax for Total-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Tmax for Total-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of total-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-t) for OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-t) for OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-24) for OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-24) for OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Cmax for OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Cmax for OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Ctrough for OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Ctrough for OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Tmax for OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Tmax for OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-t) for Tauro-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-t) for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-24) for Tauro-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-24) for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Cmax for Tauro-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Cmax for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Ctrough for Tauro-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Ctrough for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Tmax for Tauro-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Tmax for Tauro-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of tauro-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-t) for Glyco-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-t) for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- AUC(0-24) for Glyco-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- AUC(0-24) for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Cmax for Glyco-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Cmax for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Ctrough for Glyco-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Ctrough for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part B- Tmax for Glyco-OCA: OCA Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Day 17: Pre-dose; Day 18: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 19) post-dose

Part B- Tmax for Glyco-OCA: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of glyco-OCA.

Time frame: Days 35 and 36: Pre-dose; Day 37: Pre-dose, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14 and 24 hours (Day 38) post-dose

Part A- Number of Participants With Any Adverse Events (AEs) and Serious Adverse Events (SAEs)

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study treatment, whether or not considered related to the study treatment. An SAE is defined as any untoward medical occurrence that, at any dose; results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect or any other situation according to medical or scientific judgement. All Participants Population consisted of all participants who took at least 1 dose of study intervention.

Time frame: Up to Day 52

Part B- Number of Participants With Any AEs and SAEs

Time frame: Up to Day 52

Part A- Change From Baseline in PR Interval, QRS Duration, QT Interval, QT Interval Corrected Using Bazzet's Formula (QTcB), Corrected QT Interval Using Fredericia's Formula (QTcF): OCA Arm

Twelve lead electrocardiograms (ECGs) were obtained to measure PR interval, QRS duration, QT interval, QTcB and QTcF. Twelve-lead ECGs were performed with the participant in a supine position after a rest of at least 5 minutes. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1), and at Day 17

Part A- Change From Baseline in PR Interval, QRS Duration, QT Interval, QTcB, QTcF: OCA + Linerixibat Arm

Twelve lead ECGs were obtained to measure PR interval, QRS duration, QT interval, QTcB and QTcF. Twelve-lead ECGs were performed with the participant in a supine position after a rest of at least 5 minutes. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1), and at Day 38

Part B- Change From Baseline in PR Interval, QRS Duration, QT Interval, QTcB, QTcF

Twelve lead ECGs were planned to be measured PR interval, QRS duration, QT interval, QTcB and QTcF. Twelve-lead ECGs were planned to be performed with the participant in a supine position after a rest of at least 5 minutes.

Time frame: Baseline (Day -1), and up to Day 38

Part A- Change From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP): OCA Arm

SBP and DBP were measured in a supine position after 5 minutes of rest for the participants in a quiet setting without distractions. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1), Days 1 and 17

Part A- Change From Baseline in SBP and DBP: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Pulse Rate: OCA Arm

Pulse rate was measured in a supine position after 5 minutes of rest for the participants in a quiet setting without distractions. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1), Days 1 and 17

Part A- Change From Baseline in Pulse Rate: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Respiratory Rate: OCA Arm

Respiratory rate was measured in supine position after 5 minutes of rest for the participants in a quiet setting without distractions. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1), Days 1 and 17

Part A- Change From Baseline in Respiratory Rate: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Body Temperature: OCA Arm

Body temperature was measured in supine position after 5 minutes of rest for the participants in a quiet setting without distractions. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1), Days 1 and 17

Part A- Change From Baseline in Body Temperature: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part B- Change From Baseline in SBP and DBP

SBP and DBP were planned to be measured in a supine position after 5 minutes of rest for the participants in a quiet setting without distractions.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Pulse Rate

Pulse rate was planned to be measured in a supine position after 5 minutes of rest for the participants in a quiet setting without distractions.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Respiratory Rate

Respiratory rate was planned to be measured in a supine position after 5 minutes of rest for the participants in a quiet setting without distractions.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Body Temperature

Body temperature was planned to be measured in a supine position after 5 minutes of rest for the participants in a quiet setting without distractions.

Time frame: Baseline (Day -1), and up to Day 38

Part A- Change From Baseline in Hematology Parameters: Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelet Count, Leukocytes: OCA Arm

Blood samples were collected to analyze the hematology parameters: basophils, eosinophils, lymphocytes, monocytes, neutrophils, platelet count and leukocytes. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Hematology Parameters: Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelet Count, Leukocytes: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Hematology Parameter: Hemoglobin: OCA Arm

Blood samples were collected to analyze the hematology parameter: hemoglobin. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Hematology Parameter: Hemoglobin: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Hematology Parameter: Hematocrit: OCA Arm

Blood samples were collected to analyze the hematology parameter: hematocrit. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Hematology Parameter: Hematocrit: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Hematology Parameter: Erythrocytes Mean Corpuscular Hemoglobin: OCA Arm

Blood samples were collected to analyze the hematology parameter: erythrocytes mean corpuscular hemoglobin. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Hematology Parameter: Erythrocytes Mean Corpuscular Hemoglobin: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Hematology Parameter: Erythrocytes Mean Corpuscular Volume: OCA Arm

Blood samples were collected to analyze the hematology parameter: erythrocytes mean corpuscular volume. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Hematology Parameter: Erythrocytes Mean Corpuscular Volume: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Hematology Parameters: Erythrocytes, Reticulocytes: OCA Arm

Blood samples were collected to analyze the hematology parameters: erythrocytes and reticulocytes. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Hematology Parameters: Erythrocytes, Reticulocytes: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part B- Change From Baseline in Hematology Parameters: Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelet Count, Leukocytes

Blood samples were planned to be collected to analyze the hematology parameters: basophils, eosinophils, lymphocytes, monocytes, neutrophils, platelet count and leukocytes.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Hematology Parameter: Hemoglobin

Blood samples were planned to be collected to analyze the hematology parameter: hemoglobin.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Hematology Parameter: Hematocrit

Blood samples were planned to be collected to analyze the hematology parameter: hematocrit.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Hematology Parameter: Erythrocytes Mean Corpuscular Hemoglobin

Blood samples were planned to be collected to analyze the hematology parameter: erythrocytes mean corpuscular hemoglobin.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Hematology Parameter: Erythrocytes Mean Corpuscular Volume

Blood samples were planned to be collected to analyze the hematology parameter: erythrocytes mean corpuscular volume.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Hematology Parameters: Erythrocytes, Reticulocytes

Blood samples were planned to be collected to analyze the hematology parameters: erythrocytes and reticulocytes.

Time frame: Baseline (Day -1), and up to Day 38

Part A- Change From Baseline in Chemistry Parameters: Glucose, Calcium, Potassium, Sodium, Urea: OCA Arm

Blood samples were collected to analyze the chemistry parameters: glucose, calcium, potassium, sodium and urea. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Chemistry Parameters: Glucose, Calcium, Potassium, Sodium, Urea: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Chemistry Parameters: Bilirubin, Creatinine, Direct Bilirubin: OCA Arm

Blood samples were collected to analyze the chemistry parameters: bilirubin, creatinine and direct bilirubin. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Chemistry Parameters: Bilirubin, Creatinine, Direct Bilirubin: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Chemistry Parameters: Alanine Aminotransferase (ALT), Alkaline Phosphatase (ALP), Aspartate Aminotransferase (AST): OCA Arm

Blood samples were collected to analyze the chemistry parameters: ALT, ALP and AST. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Chemistry Parameters: ALT, ALP, AST: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part A- Change From Baseline in Chemistry Parameter: Protein: OCA Arm

Blood samples were collected to analyze the chemistry parameter: protein. Baseline was considered as Day -1. Change from Baseline was calculated by subtracting the Baseline value from the post-dose visit value.

Time frame: Baseline (Day -1) and at Day 17

Part A- Change From Baseline in Chemistry Parameter: Protein: OCA + Linerixibat Arm

Time frame: Baseline (Day -1) and at Day 38

Part B- Change From Baseline in Chemistry Parameters: Glucose, Calcium, Potassium, Sodium, Urea

Blood samples were planned to be collected to analyze the chemistry parameters: glucose, calcium, potassium, sodium and urea.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Chemistry Parameters: Bilirubin, Creatinine, Direct Bilirubin

Blood samples were planned to be collected to analyze the chemistry parameters: bilirubin, creatinine and direct bilirubin.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Chemistry Parameters: ALT, ALP, AST

Blood samples were planned to be collected to analyze the chemistry parameters: ALT, ALP and AST.

Time frame: Baseline (Day -1), and up to Day 38

Part B- Change From Baseline in Chemistry Parameter: Protein

Blood samples were planned to be collected to analyze the chemistry parameter: protein.

Time frame: Baseline (Day -1), and up to Day 38

Part A- Number of Participants With Worst Case Urinalysis Results Post-Baseline Relative to Baseline: OCA Arm

Urine samples were collected from participants for urinalysis for measuring potential of hydrogen (pH) and glucose, protein, blood, ketones, bilirubin, urobilinogen, nitrite, leukocytes levels by dipstick. Abnormal urinalysis was sent for microscopic examination for cellular casts, erythrocytes, granular casts, hyaline casts, and leukocytes and were counted as cells per high-power field (cells/HPF). Baseline was considered as Day -1. Number of participants with worst case urinalysis result by microscopic examination have been presented.

Time frame: Baseline (Day -1) and at Day 17

Part A- Number of Participants With Worst Case Urinalysis Results Post-Baseline Relative to Baseline: OCA + Linerixibat Arm

Urine samples were collected from participants for urinalysis for measuring pH and glucose, protein, blood, ketones, bilirubin, urobilinogen, nitrite, leukocytes levels by dipstick. Abnormal urinalysis was sent for microscopic examination for cellular casts, erythrocytes, granular casts, hyaline casts, and leukocytes and were counted as cells/HPF. Baseline was considered as Day -1. Number of participants with worst case urinalysis result by microscopic examination have been presented.

Time frame: Baseline (Day -1) and at Day 38

Part B- Number of Participants With Worst Case Urinalysis Results Post-Baseline Relative to Baseline

Urine samples were planned to be collected from participants for urinalysis for measuring pH and glucose, protein, blood, ketones, bilirubin, urobilinogen, nitrite, leukocytes levels by dipstick. Abnormal urinalysis was planned to be sent for microscopic examination for cellular casts, erythrocytes, granular casts, hyaline casts, and leukocytes.

Time frame: Baseline (Day -1), and up to Day 38

Part A- AUC(0-t) for Linerixibat: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of linerixibat. Pharmacokinetic parameters were analyzed using standard non-compartmental methods.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part A- Area Under the Concentration-time Curve From Time Zero to 12 Hours (AUC[0-12]) for Linerixibat: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of linerixibat. Pharmacokinetic parameters were analyzed using standard non-compartmental methods.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part A- Cmax for Linerixibat: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of linerixibat. Pharmacokinetic parameters were analyzed using standard non-compartmental methods.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part A- Tmax for Linerixibat: OCA + Linerixibat Arm

Blood samples were collected at indicated time points for pharmacokinetic analysis of linerixibat. Pharmacokinetic parameters were analyzed using standard non-compartmental methods.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part B- AUC(0-t) for Linerixibat: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of linerixibat.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part B- AUC(0-12) for Linerixibat: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of linerixibat.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part B- Cmax for Linerixibat: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of linerixibat.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose

Part B- Tmax for Linerixibat: OCA + Linerixibat Arm

Blood samples were planned to be collected at indicated time points for pharmacokinetic analysis of linerixibat.

Time frame: Days 20 and 33: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12 hours post-dose