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Dimebon + Dextromethorphan

Phase 3

Huntington Disease | Small molecule | Rare Disease |Pfizer, Inc.|Last Updated: Oct 11, 2016

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
RandomizedCONTROLLEDBiomarker
Total Trials2
Total Enrollment417
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00920946A Safety and Efficacy Study of Dimebon in Patients With Huntington DiseasePHASE3 COMPLETED 403Jul 30, 2009 -Oct 11, 2016 -
NCT00788047A Phase 1 Study To Evaluate The Effect Of Dimebon On The Pharmacokinetics Of DextromethorphanPHASE1 COMPLETED 14Nov 1, 2008Jan 1, 2009Mar 9, 20091 United States
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Study Endpoints
Primary Endpoints
Dextromethorphan exposure in combination with Dimebon 20 mg TID relative to Dextromethorphan exposure alone
Day 12
Secondary Endpoints
Safety and Tolerability (Adverse Events, Vital Signs, Clinical Labs, Electrocardiograms)
Day 15
Dextrorphan (the metabolite of dextromethorphan) exposure
Day 12
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Study Design & Arms
Treatment Arms
ArmTypeDescription
Regimen A (Reference)OTHER -
Regimen B (Test)EXPERIMENTAL -
Interventions
NameTypeDescription
DimebonDRUG20 mg Dimebon orally TID
PlaceboOTHEROrally TID
DextromethorphanDRUGDextromethorphan HCl 30 syrup single dose
Dimebon + DextromethorphanDRUGDimebon 20 mg tablets given three times daily for 14 days plus Dextromethorphan HCl 30 syrup single dose administered on Day 12
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL

Inclusion Criteria: * Healthy adult subjects. * Extensive or ultra-rapid metabolizers of CYP2D6 substrates, predicted by genotype. Exclusion Criteria: * Existence of significant medical conditions that would impact study results or pose unacceptable risks to study subjects. * Pregnant or nursing ...

Countries:United States
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Competitive Landscape -Huntington's Disease 9 trials