Pharmacokinetics, Safety, and Tolerability of Methylnaltrexone in Volunteers With Impaired Hepatic Function
A Phase 1, Open-Label, Study to Evaluate Single Dose Pharmacokinetics, Safety, and Tolerability of Methylnaltrexone (MNTX) in Volunteers With Impaired Hepatic Function
1 other identifier
interventional
24
1 country
1
Brief Summary
This is a multicenter, non-randomized, single-dose, parallel-group study. Each subject will receive a subcutaneous dose of MNTX. Eight subjects with normal hepatic function and eight subjects from each classification of hepatic impairment will be enrolled. Plasma samples will be collected before and at specified intervals after dosing and the concentration of MNTX will be analyzed.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Mar 2004
Shorter than P25 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 1, 2004
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2004
CompletedStudy Completion
Last participant's last visit for all outcomes
July 1, 2004
CompletedFirst Submitted
Initial submission to the registry
May 27, 2011
CompletedFirst Posted
Study publicly available on registry
June 7, 2011
CompletedNovember 27, 2019
November 1, 2019
4 months
May 27, 2011
November 26, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Plasma Concentration of SC MNTX
To evaluate the pharmacokinetics of MNTX administered subcutaneously as a single dose in individuals with impaired liver and hepatic function compared to healthy controls.
20 days
Secondary Outcomes (4)
Time of Maximum Plasma Concentration of SC MNTX
20 days
Area Under the Plasma Concentration versus Time Curve (AUC) of SC MNTX
20 days
Percentage of SC MNTX Excreted in Urine
20 days
Urinary Clearance of SC MNTX
20 days
Study Arms (1)
Arm 1
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- Males and females between the ages of 18-80 years
- Body weight greater than 100 lbs and BMI between 18-38
- Liver values that are abnormal must not be clinically relevant as judged by the investigator. Liver enzyme and bilirubin must be less than 5 times the upper normal of reference range and may be repeated under fed conditions if abnormal. Stable hepatitis patients as well as cirrhosis patients of either etiology.
You may not qualify if:
- History of current alcohol abuse with less than 1 year abstinence
- Conditions possibly affecting drug absorption, e.g. gastrectomy or clinically significant diabetic gastroenteropathy.
- Currently pregnant or nursing
- Methadone use.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Progenics Pharmaceuticals, Inc.
Tarrytown, New York, 10591, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Tage Ramakrishna, MD
Progenics Pharmaceuticals, Inc.
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
May 27, 2011
First Posted
June 7, 2011
Study Start
March 1, 2004
Primary Completion
July 1, 2004
Study Completion
July 1, 2004
Last Updated
November 27, 2019
Record last verified: 2019-11