Alzheimer DiseasePhase 1NCT00719394
Study Evaluating Safety of GSI 136 in Young and Elderly Japanese Males
A Phase 1 study testing GSI 136 in people with Alzheimer Disease and Healthy, run by Wyeth is now a wholly owned subsidiary of Pfizer at 1 site in Japan.
Trial summary
This is a first-in-human study of GSI-136, a gamma-secretase inhibitor being developed for the treatment of Alzheimer disease. This study will take place in Japan only and will provide an initial assessment of the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of GSI-136 after administration of… Read more about this study
- Who is it for?
- Ages 20 years and older, men onlyHealthy volunteers can take part
- Conditions the study is for
- Alzheimer Disease, Healthy
- What is being tested?
- GSI 136
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 72 participants
- Where
- 1 siteJapan
- Study dates
- Mar 2008to 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 20 years and older
- Men only
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Men aged 20 to 45 years, or greater than 65 years, inclusive, at screening and who agree to use a medically acceptable form of contraception during the study and to continue its use for 12 weeks after test article administration.
- Healthy as determined by the investigator on the basis of medical history, physical examination, clinical laboratory tests, vital sign measurements and 12-lead electrocardiogram (ECG).
Who cannot join
- Presence or history of any disorder that may prevent the successful completion of the study.
- Any history or presence of chronic respiratory disorder or disease including but not limited to asthma, sleep apnea, or chronic obstructive pulmonary disease (COPD).
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Ascending Single-Dose Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of GSI-136 Administered Orally to Healthy Japanese Male Subjects and Healthy Japanese Elderly Male Subjects
This is a first-in-human study of GSI-136, a gamma-secretase inhibitor being developed for the treatment of Alzheimer disease. This study will take place in Japan only and will provide an initial assessment of the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of GSI-136 after administration of ascending single oral doses to healthy Japanese male subjects and healthy Japanese elderly male subjects.
- Conditions
- Alzheimer Disease, Healthy
- Being tested
- GSI 136, placebo
- Keywords
- alzheimer Disease
- Medical subject headings
- Alzheimer Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GSI 136Drug
placeboDrug
| Study group | Role | What they receive |
|---|---|---|
| GSI 136 | Experimental | Not described Receives: Drug: GSI 136 |
| placebo | Placebo comparator | Not described Receives: Drug: placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Safety and tolerability of GSI-136 as evaluated from reported adverse events, scheduled physical examinations, vital sign measurements, orthostatic vital sign measurements, cardiac rhythm monitoring, 12-lead ECGs, and clinical laboratory test results.
Measured: 6 months
Secondary outcomes (1)
Pharmacokinetics as evaluated from the blood and urine concentrations of GSI-136; Pharmacodynamics as evaluated from the levels of select biomarkers in the blood and the administration of a visual analog scale to measure sedation effects.
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jul 2008 (estimated)
- Study startMar 2008
- Primary completionAug 2008
- Study completionAug 2008
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Alzheimer DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 72 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Wyeth is now a wholly owned subsidiary of Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Medical Monitor, Study director, Wyeth is now a wholly owned subsidiary of Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00719394
- Sponsor's protocol ID
- 3225A1-1001
- Status last verified
- Jul 2009
- First submitted
- 17 Jul 2008
- Last updated
- 10 Jul 2009
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 10 Jul 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Ascending Single-Dose Study of the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of GSI-136 Administered Orally to Healthy Japanese Male Subjects and Healthy Japanese Elderly Male Subjects
- ClinicalTrials.gov ID
- NCT00719394
- Acronym / sponsor ID
- 3225A1-1001
- Conditions
- Alzheimer Disease, Healthy
- Keywords
- alzheimer Disease
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 72 participants (estimated)
- Lead sponsor
- Wyeth is now a wholly owned subsidiary of PfizerIndustry (pharma, biotech, devices)
- Study start
- Mar 2008
- Primary completion
- Aug 2008 (actual)
- Study completion
- Aug 2008 (actual)
- First posted
- 21 Jul 2008 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a first-in-human study of GSI-136, a gamma-secretase inhibitor being developed for the treatment of Alzheimer disease. This study will take place in Japan only and will provide an initial assessment of the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of GSI-136 after administration of ascending single oral doses to healthy Japanese male subjects and healthy Japanese elderly male subjects.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| GSI 136 | Experimental | Drug: GSI 136 |
| placebo | Placebo comparator | Drug: placebo |
Who may qualify
- Ages
- 20 years and older
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Men aged 20 to 45 years, or greater than 65 years, inclusive, at screening and who agree to use a medically acceptable form of contraception during the study and to continue its use for 12 weeks after test article administration.
- Healthy as determined by the investigator on the basis of medical history, physical examination, clinical laboratory tests, vital sign measurements and 12-lead electrocardiogram (ECG).
Key exclusion criteria (2 listed)
- Presence or history of any disorder that may prevent the successful completion of the study.
- Any history or presence of chronic respiratory disorder or disease including but not limited to asthma, sleep apnea, or chronic obstructive pulmonary disease (COPD).
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| GSI 136 | Drug | GSI 136 |
| placebo | Drug | placebo |
Primary outcome
Safety and tolerability of GSI-136 as evaluated from reported adverse events, scheduled physical examinations, vital sign measurements, orthostatic vital sign measurements, cardiac rhythm monitoring, 12-lead ECGs, and clinical laboratory test results.
Time frame: 6 months
1 secondary outcome
Pharmacokinetics as evaluated from the blood and urine concentrations of GSI-136; Pharmacodynamics as evaluated from the levels of select biomarkers in the blood and the administration of a visual analog scale to measure sedation effects.
Time frame: 6 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Jul 2009.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Medical Monitor study director
Wyeth is now a wholly owned subsidiary of Pfizer
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing GSI 136 in people with Alzheimer Disease and Healthy, run by Wyeth is now a wholly owned subsidiary of Pfizer at 1 site in Japan.
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 2 inclusion and 2 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 10 Jul 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 Japan. 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. Some participants in this study may receive a placebo. 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 of GSI-136 as evaluated from reported adverse events, scheduled physical examinations, vital sign measurements, orthostatic vital sign measurements, cardiac rhythm monitoring, 12-lead ECGs, and clinical laboratory test results. (time frame: 6 months). 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 10 Jul 2009; AzTrials last refreshed its copy on 7 Nov 2026.