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Steady-State Pharmacokinetics of Rifaximin 550 mg Tablets in Healthy and Hepatically Impaired Subjects

Primary Purpose

Severe Hepatic Impairment

Status
Recruiting
Phase
Phase 4
Locations
United States
Study Type
Interventional
Intervention
Rifaximin
Sponsored by
Bausch Health Americas, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Severe Hepatic Impairment

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Hepatically impaired subjects will be ≥18 years of age, have a diagnosis of liver cirrhosis and a MELD score of ≥19 at Screening. Note: At least 6 of the hepatically impaired subjects will have a MELD score of >25.

Exclusion Criteria:

  • Subject has known allergy to rifaximin, rifampin, or other rifamycins, excipients and/or vehicles used in the formulation, or any other clinically significant allergies.
  • Subject has participated in an investigational drug or device study within 30 days prior to Day 1 (Baseline).
  • Subject has any concurrent illness (other than liver cirrhosis), disability or circumstance that may affect the interpretation of clinical data, could cause noncompliance with treatment or visits or otherwise contraindicates participation in this study in the opinion of the investigator.

Sites / Locations

  • Valeant Site 01Recruiting

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Rifaximin

Arm Description

Rifaximin 550 mg BID

Outcomes

Primary Outcome Measures

Maximum observed plasma concentration (Cmax)
Maximum observed plasma concentration (Cmax) of rifaximin and 25-desacetyl rifaximin, if measurable
Time of the maximum concentration (Tmax)
Time of the maximum concentration (Tmax) of rifaximin and 25-desacetyl rifaximin, if measurable
Area under the plasma concentration versus time curve (AUC) during the 12-hour dose interval
Area under the plasma concentration versus time curve (AUC) during the 12-hour dose interval of rifaximin and 25-desacetyl rifaximin, if measurable

Secondary Outcome Measures

Full Information

First Posted
January 22, 2019
Last Updated
September 7, 2022
Sponsor
Bausch Health Americas, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT03818672
Brief Title
Steady-State Pharmacokinetics of Rifaximin 550 mg Tablets in Healthy and Hepatically Impaired Subjects
Official Title
Open Label Study to Evaluate the Steady-State Pharmacokinetics of Rifaximin 550 mg Tablets in Healthy Subjects and Subjects With Severe Hepatic Impairment
Study Type
Interventional

2. Study Status

Record Verification Date
September 2022
Overall Recruitment Status
Recruiting
Study Start Date
December 5, 2018 (Actual)
Primary Completion Date
May 2023 (Anticipated)
Study Completion Date
May 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Bausch Health Americas, Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
The primary objective of this study is to characterize the steady state plasma
Detailed Description
The primary objective of this study is to characterize the steady state plasma PK of rifaximin (550 mg BID) in subjects with severe hepatic impairment (MELD 19 to 25 and MELD >25), as well as healthy subjects with normal hepatic function.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Severe Hepatic Impairment

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Single Group Assignment
Model Description
open-label, repeat-dose, parallel-design study in 12 subjects with severe hepatic impairment and 6 healthy subjects with normal hepatic function.
Masking
None (Open Label)
Allocation
N/A
Enrollment
18 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Rifaximin
Arm Type
Experimental
Arm Description
Rifaximin 550 mg BID
Intervention Type
Drug
Intervention Name(s)
Rifaximin
Intervention Description
Rifaximin 550 MG BID
Primary Outcome Measure Information:
Title
Maximum observed plasma concentration (Cmax)
Description
Maximum observed plasma concentration (Cmax) of rifaximin and 25-desacetyl rifaximin, if measurable
Time Frame
7 days
Title
Time of the maximum concentration (Tmax)
Description
Time of the maximum concentration (Tmax) of rifaximin and 25-desacetyl rifaximin, if measurable
Time Frame
7 days
Title
Area under the plasma concentration versus time curve (AUC) during the 12-hour dose interval
Description
Area under the plasma concentration versus time curve (AUC) during the 12-hour dose interval of rifaximin and 25-desacetyl rifaximin, if measurable
Time Frame
7 days

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Hepatically impaired subjects will be ≥18 years of age, have a diagnosis of liver cirrhosis and a MELD score of ≥19 at Screening. Note: At least 6 of the hepatically impaired subjects will have a MELD score of >25. Exclusion Criteria: Subject has known allergy to rifaximin, rifampin, or other rifamycins, excipients and/or vehicles used in the formulation, or any other clinically significant allergies. Subject has participated in an investigational drug or device study within 30 days prior to Day 1 (Baseline). Subject has any concurrent illness (other than liver cirrhosis), disability or circumstance that may affect the interpretation of clinical data, could cause noncompliance with treatment or visits or otherwise contraindicates participation in this study in the opinion of the investigator.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Tendai Merriweather
Phone
9085412720
Email
tendai.merriweather@bauschhealth.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Varsha Bhatt
Organizational Affiliation
Bausch Health Companies
Official's Role
Study Director
Facility Information:
Facility Name
Valeant Site 01
City
San Antonio
State/Province
Texas
ZIP/Postal Code
78215
Country
United States
Individual Site Status
Recruiting

12. IPD Sharing Statement

Plan to Share IPD
Undecided

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Steady-State Pharmacokinetics of Rifaximin 550 mg Tablets in Healthy and Hepatically Impaired Subjects

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