Study Stopped
Poor recruitment of fast and slow acetylators
A Study to Investigate the Absorption, Metabolism and Excretion of Talampanel
A Phase 1 Open-label Mass Balance Study to Investigate the Absorption, Metabolism and Excretion of [14C]-Talampanel Following Oral Administration to Healthy Male
1 other identifier
interventional
10
1 country
1
Brief Summary
The purpose of this study is to characterize the chemical breakdown and excretion of talampanel and its break down products in plasma, feces, and urine of healthy human volunteers.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1 healthy
Started May 2009
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
First Submitted
Initial submission to the registry
March 24, 2009
CompletedFirst Posted
Study publicly available on registry
March 25, 2009
CompletedStudy Start
First participant enrolled
May 1, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2009
CompletedSeptember 16, 2009
September 1, 2009
4 months
March 24, 2009
September 15, 2009
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
To determine the mass balance of [14C]-talampanel. To characterize the metabolism of [14C] talampanel in plasma, feces, and urine. To assess the pharmacokinetics (PK) of total radioactivity, talampanel, and N-acetyl talampanel.
6-9 days
Secondary Outcomes (1)
To explore the effect of N-acetyltransferase 2 (NAT2) genotype on the PK and metabolism of [14C] talampanel. To further assess the safety and tolerability of talampanel.
6-9 days
Study Arms (1)
Slow and rapid N-acetyl transferase genotypes
EXPERIMENTALInterventions
50 mg capsule single dose
Eligibility Criteria
You may qualify if:
- Males, between 18 and 55 years of age, inclusive
- Body Mass Index range 18.0 to 30.0 kg/m2, inclusive
- Have NAT2 slow or rapid acetylator genotype
- In good health as determined by the investigator
- Negative test for selected drugs of abuse at screening
- Negative screens for Hepatitis B, Hepatitis C and HIV
- Sterile or agrees to use an approved method of contraception from Check-in until 45 days following Clinic Discharge
- Able to comprehend and willing to sign an Informed Consent Form
- Have 1 to 2 bowel movements per day
You may not qualify if:
- Significant history or clinical manifestation of any significant metabolic, allergic, skin, liver, kidney, blood, heart or blood vessel, digestive system, brain or psychiatric disorder
- History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance
- History of stomach or intestinal surgery or resection
- History or presence of an abnormal ECG,
- History of clinically significant alcohol or drug use within 1 year prior to Check-in
- Participation in more than 1 other radiolabeled investigational study drug trial within 12 months prior to Check-in
- Exposure to significant radiation within 12 months prior to Check-in -Use of any tobacco- or nicotine-containing within 6 months prior to Check- in
- Use of any drugs which may interact with the study drug within 30 days prior to Check-in
- Participation in any other investigational study drug trial in which receipt of an investigational study drug occurred within 30 days prior to Check-in
- Use of any prescription medications/products within 14 days prior to Check in
- Use of any over-the-counter, non-prescription drugs within 7 days prior to Check-in
- Use of grapefruit or grapefruit-containing foods or beverages within 7 days prior to Check-in
- Use of alcohol- or caffeine-containing foods or beverages within 72 hours prior to Check-in
- Donation of blood from 30 days prior to Screening through Study Completion, inclusive, or of plasma from 2 weeks prior to Screening through Study Completion
- Receipt of blood products within 2 months prior to Check-in
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Teva Branded Pharmaceutical Products R&D, Inc.lead
- Covancecollaborator
Study Sites (1)
Covance Clinical Pharmacology Inc.
Madison, Wisconsin, 53704, United States
MeSH Terms
Interventions
Study Officials
- PRINCIPAL INVESTIGATOR
Nicholas M Siebers, MD
Covance
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
March 24, 2009
First Posted
March 25, 2009
Study Start
May 1, 2009
Primary Completion
September 1, 2009
Study Completion
September 1, 2009
Last Updated
September 16, 2009
Record last verified: 2009-09