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Dimebon IR

Phase 1

Alzheimer's Disease | Small molecule | Rare Disease |Pfizer, Inc.|Last Updated: Feb 3, 2010

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDBiomarker
Total Trials2
Total Enrollment39
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00988624A Study In Healthy Volunteers To Estimate The Pharmacokinetics Of Four Modified-Release Formulations Of Dimebon (Latrepirdine)PHASE1 COMPLETED 20Oct 1, 2009Dec 1, 2009Jan 12, 20101 United States
NCT00990613A Study Evaluating The Absorption Of Dimebon Into The Body From A Dimebon Solution Applied To The SkinPHASE1 COMPLETED 19Oct 1, 2009Jan 1, 2010Feb 3, 20101 United States
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Study Endpoints
Primary Endpoints
PK endpoints for dimebon and M7 (where appropriate) for each formulation: AUC0-24, AUC0-24(dn), AUCinf (as data permit) AUCinf(dn), AUClast, AUClast(dn), Tlag, Cmax, Tmax, and t1/2 (as data permit).
Day 1-3 of Period 1, 2, 3, 4, or 5
Pharmacokinetic endpoints include dimebon area under the curve from 0 to the last quantifiable concentration (AUClast) and dimebon area under the curve from 0 to infinity (AUCinf) as permitted by data
4 to 6 days
Secondary Endpoints
Safety and tolerability for each formulation (AEs, ECG, vital signs, safety labs)
Day 1-3 of Period 1, 2, 3, 4, or 5
Safety endpoints include subjective symptoms/objective findings (including skin irritation), clinical safety laboratory assessments, 12 lead ECGs, and supine vital signs.
4 to 6 days
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
Treatment Arms
ArmTypeDescription
Period 1EXPERIMENTAL -
Period 2EXPERIMENTAL -
Period 3EXPERIMENTAL -
Period 4EXPERIMENTAL -
Period 5EXPERIMENTAL -
Cohort 1OTHER -
Cohort 2OTHER -
Interventions
NameTypeDescription
Dimebon IR TabletDRUGPharmacokinetics of a single oral dose of 10 mg dimebon immediate release tablet will be assessed on Day 1 - 3.
Dimebon MR1DRUGPharmacokinetics of a single oral dose of 10 mg dimebon modified release formulation, MR1, will be assessed on Day 1 - 3.
Dimebon MR2DRUGPharmacokinetics of a single oral dose of 10 mg dimebon modified release formulation, MR2, will be assessed on Day 1 - 3.
Dimebon MR3DRUGPharmacokinetics of a single oral dose of 10 mg dimebon modified release formulation, MR3, will be assessed on Day 1 - 3.
Dimebon MR4DRUGPharmacokinetics of a single oral dose of 10 mg dimebon modified release formulation, MR4, will be assessed on Day 1 - 3.
Dimebon IRDRUGA single, oral 10 mg dose of dimebon dihydrochloride (equivalent to 8.2 mg free base) immediate release will be administered.
Dimebon TransdermalDRUGA single, transdermal 5 mg dose of dimebon free base solution will be applied to the back over a 24 hour period. A double-blinded vehicle (placebo) solution will be applied concurrently to a contralateral body site.
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy male and/or female subjects between the ages of 18 and 55 years, inclusive. Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight \>50 kg (110 lbs). Exclusion Criteria: * Evidence or history of clinically significant hematological, renal, endocrine, p...

Countries:United States
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