A Phase 1 Open-Label Evaluation of the Pharmacokinetics and Safety of a Single Dose of Apraglutide in Subjects With Normal and Impaired Hepatic Function

A Phase 1, Open-Label Evaluation of the Pharmacokinetics and Safety of a Single Dose of Apraglutide in Subjects With Normal and Impaired Hepatic Function

The primary objective is to assess the pharmacokinetics (PK) of apraglutide in subjects with hepatic impairment compared with matched control subjects with normal hepatic function following single subcutaneous (SC) dose administration.

Study Overview

• Status: Completed
• Conditions: Hepatic Impairment
• Intervention / Treatment: Drug: Apraglutide

Detailed Description

A two stage design, open label, multi-center, non-randomized trial to evaluate the the safety and tolerability of a single subcutaneous dose of apraglutide in subjects with varying degrees of hepatic function. The hepatic function will estimated with the Child-Pugh classification.

Part 1: 8 subjects with moderate hepatic impairment (Cohort 1) and 8 subjects with normal hepatic function (Cohort 2).

Part 2: 8 subjects with mild hepatic impairment (Cohort 3) and 8 subjects with normal hepatic function (from Cohort 2 where possible and additional subject). Part 2 will be conducted only if the geometric mean ratio (GMR) of area under the curve extrapolated to infinity (AUCinf) or area under the curve from zero to the last measurable point (AUClast) for the moderate hepatic impairment group compared to the control group is ≥2.

• Study Type: Interventional
• Enrollment (Actual): 16
• Phase: Phase 1

Contacts and Locations

Study Locations

• Germany
  • Münich, Germany
    • APEX
• Slovakia
  • Bratislava, Slovakia
    • Summit Clinical Research

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 75 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

All Participants:

• Age between 18 and 75 years inclusive
• Subjects who are willing and able to comply with the study procedures
• Subjects able to understand and willing to sign the informed consent
• Body mass index (BMI) of ≥18 to ≤35 kg/m2; and a total body weight of >50 kg (110 lb).
• Women of childbearing potential (WOCBP) on highly effective method of contraception during the trial and for 1 month after the end of trial (EOT) visit. Sterilized or infertile or postmenopausal females.
• Male subjects with a female partner of childbearing potential: highly effective methods of contraception and no sperm donation during the trial and for 1 month after (EOT) visit.

Participants with impaired hepatic function:

• Confirmed and documented diagnosis of cirrhosis
• Moderate liver disease (Child-Pugh B): clinically stable for at least 1 month prior to screening
• Mild liver disease (Child-Pugh A): clinically stable for at least 1 month prior to screening

Exclusion Criteria:

• History of clinically significant GI, bronchopulmonary, neurological, cardiovascular, endocrine, or allergic disease
• Known hypersensitivity to the investigational medicinal product (IMP), any of their excipients or drugs of the same class
• If capable of reproduction, unwilling to use an effective form of contraception
• If a female of child-bearing potential, a positive urine/blood pregnancy test
• Breast-feeding women
• Positive urine/blood test for alcohol and drugs of abuse at Screening and on Day-1
• Use of prohibited medications or herbal remedies
• Known presence or history of intestinal polyps
• Known presence or history of any type of cancer
• Pancreatic events such as acute pancreatitis, pancreatic duct stenosis, pancreas infection, and increased blood amylase and lipase (>2.0-5.0×upper limit of normal range)
• Participation in an investigational drug or device study within 30 days prior to Screening
• Donation of blood over 500 mL within 2 months prior to Screening
• Heavy use of tobacco products (i.e., smokes more than 10 cigarettes per day)
• Concomitant disease or condition that could interfere with, or for which the treatment of might interfere with, the conduct of the study, or that would, in the opinion of the Investigator, pose an unacceptable risk to the subject in this trial
• Any intercurrent clinically significant illness in the previous 28 days before Day 1 of this study
• Positive blood screen for human immunodeficiency virus (HIV) antigen/antibody combo, hepatitis A (HAV), hepatitis B surface antigen (HBsAgB), or hepatitis C virus (HCV)
• Unwillingness or inability to comply with the study protocol for any other reason

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Part 1: Moderate hepatic impairment; Child-Pugh B	Drug: Apraglutide; Single dose of apraglutide
Experimental: Part 1: Normal hepatic function	Drug: Apraglutide; Single dose of apraglutide
Experimental: Part 2: Mild hepatic impairment; Child-Pugh A	Drug: Apraglutide; Single dose of apraglutide

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Area Under the Curve to Infinity (AUCinf) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a lower limit of quantification (LLOQ) of 1 ng/mL and an upper limit of 200 ng/mL. Plasma pharmacokinetic (PK) parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used. AUCinf was calculated as: AUCinf = AUC from time zero to the last quantifiable concentration (AUClast) + (Clast/kel) where Clast was the observed concentration at the last time point with concentrations above the lower limit of quantification and kel was the terminal elimination rate constant.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Maximum Observed Plasma Concentration (Cmax) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used. Cmax was the observed peak analyte concentration obtained directly from the experimental data without interpolation, expressed in concentration units.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Area Under the Curve (AUC) From Time Zero to 168 Hours Post-dose (AUC0-168h) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, and 168 hours post-dose

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time of Maximum Plasma Concentration (Tmax) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used. Tmax was the first observed time to reach peak analyte concentration obtained directly from the experimental data without interpolation, expressed in time units.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Apparent Clearance After Extravascular Administration (CL/F) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Terminal Elimination Rate Constant (Kel) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used. Terminal elimination rate constant calculated by linear regression of the terminal log-linear portion of the concentration vs. time curve. Linear regression of at least three points and an adjusted r^2 greater than or equal to 0.80 were required to obtain a reliable kel.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Terminal Half-life (t1/2) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Apparent Volume of Distribution After Extravascular Administration (Vz/F) of Apraglutide	Apraglutide was quantified in human plasma samples using a fully validated liquid chromatography mass spectrometry-based method, with a LLOQ of 1 ng/mL and an upper limit of 200 ng/mL. Plasma PK parameters for apraglutide were estimated using non-compartmental methods from the concentration-time profiles. Actual sampling times, rather than scheduled sampling times, were used.	Pre-dose Day 1; 6, 12, 24, 28, 36, 40, 48, 60, 72, 96, 120, 144, 168, 240, and 312 hours post-dose
Number of Participants With Treatment-emergent Adverse Events (TEAEs)	A TEAE was any unfavorable and unintended sign, symptom, or disease temporally associated with apraglutide, whether or not related, that occurred or worsened after the dose of apraglutide. A serious TEAE was defined as any TEAE that resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity, was a congenital anomaly/birth defect or was an important medical event. TEAEs were graded for severity based on the National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE) version 5.0 as follows from Grade 1 (mild) to Grade 5 (AE resulted in death). Clinically significant changes in physical examination findings, laboratory results, vital signs, and 12-lead electrocardiograms (ECGs) were also recorded as TEAEs.	Day 1 to Day 14

Collaborators and Investigators

• Sponsor: VectivBio AG
• Investigators: Study Director: Tomasz Masior, VectivBio AG

Study record dates

Study Major Dates

• Study Start (Actual): January 30, 2023
• Primary Completion (Actual): April 4, 2023
• Study Completion (Actual): April 4, 2023

Study Registration Dates

• First Submitted: January 20, 2023
• First Submitted That Met QC Criteria: January 20, 2023
• First Posted (Actual): January 31, 2023

Study Record Updates

• Last Update Posted (Actual): July 10, 2025
• Last Update Submitted That Met QC Criteria: June 19, 2025
• Last Verified: June 1, 2025

More Information

Terms related to this study

• Keywords: Hepatic Impairment; Liver Function; Hepatic Function
• Additional Relevant MeSH Terms: Digestive System Diseases; Liver Diseases
• Other Study ID Numbers: TA799-015

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No