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Substance DependencePhase 1NCT00728052

A Human Volunteer Study Investigating Single Oral Doses of GSK598809 in Otherwise Healthy Smokers

A Phase 1 study testing GSK598809 in people with Substance Dependence, run by GlaxoSmithKline at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Study to investigate the safety, tolerability and pharmacokinetics of GSK598809 in otherwise healthy volunteers. This study is required because this drug is being developed for the treatment of nicotine dependence. It is important to evaluate how this drug interacts in healthy smokers. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Substance Dependence
What is being tested?
GSK598809
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
18 participants
Where
1 siteGermany
Study dates
9 Jun 2008to 19 Aug 2008
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 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • A healthy man or woman
  • 18 - 50 years old
  • Neither too fat, nor too thin
  • Female subjects must use an acceptable method of contraception from the first dose of study medication until 90 days following the final follow-up visit.
  • Female subjects must not be breast feeding and should not have been breast feeding for a month.
  • Male subjects must agree to use an acceptable method of contraception from the first dose of study medication until 90 days following the final follow-up.
  • Subjects need to smoke 20 - 40 cigarettes a day inclusive for at least the past year and to not have tried to quit in the 3 months before the start of the study.

Who cannot join

  • Any current medical or psychiatric illness
  • Any history of chronic medical or psychiatric illnesses
  • Previous or current alcohol or drug abuse/dependence including nicotine
  • Personal or family history of prolonged QTc syndrome

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • GSK Investigational Site

    Berlin, 13251

Other trials in Germany

About this study

Official title: A Placebo-controlled, Single-blind, Randomised, Human Volunteer Study Investigating the Tolerability and Pharmacokinetics of Escalating Single Oral Doses (75mg and Above) of GSK598809 in Otherwise Healthy Smokers

Study to investigate the safety, tolerability and pharmacokinetics of GSK598809 in otherwise healthy volunteers. This study is required because this drug is being developed for the treatment of nicotine dependence. It is important to evaluate how this drug interacts in healthy smokers. The study is planned to consist of a single part, with 4 dosing periods. Subjects will receive 3 escalating doses of GSK598809 and 1 dose of placebo. There will be at least 1 week of wash out between doses. In each dosing period 14 subjects will receive escalating doses and 4 subjects will receive placebo. The actual doses used will be determined based on the safety/ tolerability and pharmacokinetics during the previous dose. It is expected that the duration of this study will be approximately 10 weeks.

Being tested
GSK598809, Placebo
Keywords
Tolerability, dose escalation, GSK598809, Pharmacodynamics, Safety, single, placebo, Smokers, Pharmacokinetics
Medical subject headings
Substance-Related Disorders

What participants receive

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

  • GSK598809Drug

    GSK598809 capsules will be available with dose strengths of 5 milligrams and 25 milligrams, administered orally with water.

  • PlaceboDrug

    Placebo capsules will be administered orally with water.

Study groups in NCT00728052
Study groupRoleWhat they receive
Subjects receiving treatment sequence ABCDExperimentalSubjects will receive treatment sequence ABCD; A= placebo, B= GSK598809 dose 1 (75 milligrams), C = GSK598809 dose 2, and D = GSK598809 dose 3.
Receives: Drug: GSK598809; Drug: Placebo
Subjects receiving treatment sequence BACDExperimentalSubjects will receive treatment sequence BACD; B= GSK598809 dose 1 (75 milligrams), A= placebo, C = GSK598809 dose 2 and D = GSK598809 dose 3
Receives: Drug: GSK598809; Drug: Placebo
Subjects receiving treatment sequence BCADExperimentalSubjects will receive treatment sequence BCAD; B= GSK598809 dose 1 (75 milligrams), C = GSK598809 dose 2, A= placebo and D = GSK598809 dose 3.
Receives: Drug: GSK598809; Drug: Placebo
Subjects receiving treatment sequence BCDAExperimentalSubjects will receive treatment sequence BCDA; B= GSK598809 dose 1 (75 milligrams), C = GSK598809 dose 2, D = GSK598809 dose 3 and A= placebo.
Receives: Drug: GSK598809; Drug: Placebo

What is being measured

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

  1. Safety and tolerability: Clinical labs, cardiovascular variables, vital signs, adverse events over 48 hours post dosing and at follow up. Psychological assessment and movement scales will be monitored. Blood Sampling over 48 hours.

    Measured: 48 hours post dose

Secondary outcomes (1)
  1. Cigarette craving assessed over 24 hours around dosing. Cigarette Consumption to be monitored during the whole study.Withdrawal from nicotine assessed during first four hours of dosing. Cognition/ impulsivity assessed over 24 hours after dosing.

    Measured: 24 hours

Timeline

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

  1. First posted5 Aug 2008 (estimated)
  2. Study start9 Jun 2008
  3. Primary completion19 Aug 2008
  4. Study completion19 Aug 2008

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
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
18 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00728052
Sponsor's protocol ID
DAN111282
Status last verified
Aug 2017
First submitted
1 Aug 2008
Last updated
3 Aug 2017
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing GSK598809 in people with Substance Dependence, run by GlaxoSmithKline at 1 site in Germany.

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 7 inclusion and 4 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: finished, as of the sponsor's last update on 3 Aug 2017. 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 Germany. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Safety and tolerability: Clinical labs, cardiovascular variables, vital signs, adverse events over 48 hours post dosing and at follow up. Psychological assessment and movement scales will be monitored. Blood Sampling over 48 hours. (time frame: 48 hours post dose). 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 3 Aug 2017.

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