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HealthyPhase 1NCT00868361

A Study to Investigate the Absorption, Metabolism and Excretion of Talampanel

A Phase 1 study testing Talampanel (non-radiolabeled), [14C] Talampanel in people with Healthy, run by Teva Branded Pharmaceutical Products R&D, Inc. at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial 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. Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Talampanel (non-radiolabeled), [14C] Talampanel
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
May 2009to Sep 2009
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 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
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  • 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

Who cannot join

  • 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
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  • 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
  • Any acute or chronic condition that would limit the subject's ability to complete and/or participate in this clinical study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Covance Clinical Pharmacology Inc.

    Madison, Wisconsin, 53704

Other trials in United States

About this study

Official title: A Phase 1 Open-label Mass Balance Study to Investigate the Absorption, Metabolism and Excretion of [14C]-Talampanel Following Oral Administration to Healthy Male

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.

Conditions
Healthy
Being tested
Talampanel (non-radiolabeled), [14C] Talampanel
Keywords
Mass Balance, Talampanel, Pharmacokinetics, Metabolism, Metabolites, Healthy Volunteers

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Talampanel (non-radiolabeled), [14C] TalampanelDrug

    Also called TV-7600

    50 mg capsule single dose

Study groups in NCT00868361
Study groupRoleWhat they receive
Slow and rapid N-acetyl transferase genotypesExperimentalNot described
Receives: Drug: Talampanel (non-radiolabeled), [14C] Talampanel

What is being measured

The primary outcome is the main question the study is designed to answer.

  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.

    Measured: 6-9 days

Secondary outcomes (1)
  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.

    Measured: 6-9 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Mar 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionSep 2009
  4. Study completionSep 2009

Why it stopped: Poor recruitment of fast and slow acetylators

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00868361
Sponsor's protocol ID
TAL-MB-100
Status last verified
Sep 2009
First submitted
24 Mar 2009
Last updated
16 Sep 2009
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Talampanel (non-radiolabeled), [14C] Talampanel in people with Healthy, run by Teva Branded Pharmaceutical Products R&D, Inc. at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 16 Sep 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Poor recruitment of fast and slow acetylators). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

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. (time frame: 6-9 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Sep 2009.

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