Alzheimer's DiseasePhase 1NCT00824590
A Phase 1, Non-Randomized, Open-Label, Single-Dose Study To Evaluate The Pharmacokinetics, Safety, And Tolerability Of Dimebon [PF 01913539] In Subjects With Severely-Impaired And Normal Renal Function
A Phase 1 study testing Dimebon in people with Alzheimer's Disease and Huntington's Disease, run by Pfizer at 2 sites in United States.
Trial summary
This study is to compare the pharmacokinetics of Dimebon in subjects with severe renal impairment to subjects with normal renal function after oral administration of a single oral 20-mg dose of Dimebon. Read more about this study
- Who is it for?
- Ages 18 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- Alzheimer's Disease, Huntington's Disease
- What is being tested?
- Dimebon
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 2 sitesUnited States
- Study dates
- Feb 2009to Oct 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 75 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Male and/or female subjects between the ages of 18 and 75 years, inclusive
- For severe renal impairment group, subjects with creatinine clearance of less than 30 mL/min, but not yet on dialysis and in good general health commensurate with the population with chronic renal disease; however, subjects with type 1 and 2 diabetes that are reasonably controlled and who do not have a predisposition to severe hypoglycemia can both be included.
- For normal renal function group, healthy subjects with creatinine clearance of greater than 80mL/min and demographically comparable to subjects with impaired renal function
Who cannot join
- Pregnant or nursing women; women of childbearing potential (WOCBP) who are unwilling or unable to use an acceptable method of contraception as outlined in the protocol from at least 14 days prior to the first dose of study medication.
- For normal renal function group, use of prescription or non-prescription drugs, vitamins, or dietary supplements within 7 days of 5 half-lives (whichever is longer) prior to the first dose of study medication.
- Herbal supplements and hormone replacement therapy must be discontinued 28 days prior to the first dose of study medication. Acetaminophen at doses of ≤ 2 grams/day is permitted.
- For renal impairment group, a known history of clinically significant coronary heart disease, cerebrovascular disease or peripheral vascular disease and/or an event/intervention during the past 6 months. Systemic therapy with CYP3A or CYP2D6 inhibitors within 7 days or 5 halflives (whichever is longer) prior to the first dose of trial medication.
Trial locations and contacts
2 sites in 1 country.
United States2 sites
Pfizer Investigational Site
Miami, Florida, 33169
Pfizer Investigational Site
Saint Paul, Minnesota, 55114
About this study
This study is to compare the pharmacokinetics of Dimebon in subjects with severe renal impairment to subjects with normal renal function after oral administration of a single oral 20-mg dose of Dimebon. This study is also to assess the safety and tolerability of a single oral 20-mg dose of Dimebon in subjects with severe renal impairment and subjects with normal renal function.
- Conditions
- Alzheimer's Disease, Huntington's Disease
- Being tested
- Dimebon
- Keywords
- Dimebon, renal impairment, pharmacokinetics
- Medical subject headings
- Alzheimer Disease, Huntington Disease, Renal Insufficiency
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
DimebonDrug
a single oral dose of 20 mg Dimebon
DimebonDrug
a single oral dose of 20 mg Dimebon
| Study group | Role | What they receive |
|---|---|---|
| Severe renal impairment group | Experimental | Subjects with severe renal impairment defined by creatinine clearance of less than 30 mL/min but not yet on dialysis Receives: Drug: Dimebon |
| normal renal function | Experimental | Subjects with normal renal function defined by creatinine clearance of greater than 80 mL/min and demographically comparable to subjects with impaired renal function Receives: Drug: Dimebon |
What is being measured
The primary outcome is the main question the study is designed to answer.
Plasma drug concentrations
Measured: 96
Secondary outcomes (1)
Safety assessment including physical/neurological examination findings, clinical safety laboratory assessments, 12-lead ECGs, vital sign measurements, and adverse event monitoring.
Measured: 96
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Jan 2009 (estimated)
- Study startFeb 2009
- Primary completionOct 2009
- Study completionOct 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Alzheimer's DiseaseStudies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- 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
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Medivation, Inc.
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00824590
- Sponsor's protocol ID
- B1451019
- Status last verified
- Dec 2009
- First submitted
- 12 Jan 2009
- Last updated
- 30 Dec 2009
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Dec 2009. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1, Non-Randomized, Open-Label, Single-Dose Study To Evaluate The Pharmacokinetics, Safety, And Tolerability Of Dimebon [PF 01913539] In Subjects With Severely-Impaired And Normal Renal Function
- ClinicalTrials.gov ID
- NCT00824590
- Acronym / sponsor ID
- B1451019
- Conditions
- Alzheimer's Disease, Huntington's Disease
- Keywords
- Dimebon, renal impairment, pharmacokinetics
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Collaborators
- Medivation, Inc.
- Study start
- Feb 2009
- Primary completion
- Oct 2009 (actual)
- Study completion
- Oct 2009 (actual)
- First posted
- 19 Jan 2009 (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 study is to compare the pharmacokinetics of Dimebon in subjects with severe renal impairment to subjects with normal renal function after oral administration of a single oral 20-mg dose of Dimebon. This study is also to assess the safety and tolerability of a single oral 20-mg dose of Dimebon in subjects with severe renal impairment and subjects with normal renal function.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Severe renal impairment group | Experimental | Drug: DimebonSubjects with severe renal impairment defined by creatinine clearance of less than 30 mL/min but not yet on dialysis |
| normal renal function | Experimental | Drug: DimebonSubjects with normal renal function defined by creatinine clearance of greater than 80 mL/min and demographically comparable to subjects with impaired renal function |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Male and/or female subjects between the ages of 18 and 75 years, inclusive
- For severe renal impairment group, subjects with creatinine clearance of less than 30 mL/min, but not yet on dialysis and in good general health commensurate with the population with chronic renal disease; however, subjects with type 1 and 2 diabetes that are reasonably controlled and who do not have a predisposition to severe hypoglycemia can both be included.
- For normal renal function group, healthy subjects with creatinine clearance of greater than 80mL/min and demographically comparable to subjects with impaired renal function
Key exclusion criteria (4 listed)
- Pregnant or nursing women; women of childbearing potential (WOCBP) who are unwilling or unable to use an acceptable method of contraception as outlined in the protocol from at least 14 days prior to the first dose of study medication.
- For normal renal function group, use of prescription or non-prescription drugs, vitamins, or dietary supplements within 7 days of 5 half-lives (whichever is longer) prior to the first dose of study medication.
- Herbal supplements and hormone replacement therapy must be discontinued 28 days prior to the first dose of study medication. Acetaminophen at doses of ≤ 2 grams/day is permitted.
- For renal impairment group, a known history of clinically significant coronary heart disease, cerebrovascular disease or peripheral vascular disease and/or an event/intervention during the past 6 months. Systemic therapy with CYP3A or CYP2D6 inhibitors within 7 days or 5 halflives (whichever is longer) prior to the first dose of trial medication.
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 |
|---|---|---|
| Dimebona single oral dose of 20 mg Dimebon | Drug | Severe renal impairment group |
| Dimebona single oral dose of 20 mg Dimebon | Drug | normal renal function |
Primary outcome
Plasma drug concentrations
Time frame: 96
1 secondary outcome
Safety assessment including physical/neurological examination findings, clinical safety laboratory assessments, 12-lead ECGs, vital sign measurements, and adverse event monitoring.
Time frame: 96
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 30 Dec 2009.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
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Aging
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.
Pfizer CT.gov Call Center study director
Pfizer
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing Dimebon in people with Alzheimer's Disease and Huntington's Disease, run by Pfizer at 2 sites 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 3 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 30 Dec 2009. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites 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 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?
Plasma drug concentrations (time frame: 96). 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 30 Dec 2009.