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Dimebon+ Dextromethorphan

Phase 3

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

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials2
Total Enrollment417

FDA Designations

No designations recorded

Clinical trial landscape

Dimebon+ Dextromethorphan · 2 trials · 2 indications

Phase 3 1Phase 1 1
NCT00920946A Safety and Efficacy Study of Dimebon in Patients With Huntington DiseaseHuntington Disease
COMPLETED403 Analytics
PHASE3COMPLETED
A Safety and Efficacy Study of Dimebon in Patients With Huntington Disease
Huntington DiseaseUnlock trial analytics

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 to 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 8 trials (matched to "Huntington Disease")

Frequently asked questions about Dimebon+ Dextromethorphan

What is Dimebon used for?

Dimebon is an investigational small molecule being studied for Huntington's Disease and Alzheimer's Disease. It has also been evaluated in healthy volunteers and in subjects with hepatic failure. All nine clinical trials listed for Dimebon have been completed.

Who makes Dimebon?

Dimebon is being developed by Pfizer, Inc., which trades under the ticker symbol PFE on the New York Stock Exchange. Pfizer has sponsored clinical trials of Dimebon in the United States.

What phase is Dimebon in?

Dimebon is in Phase 3 clinical development for neurology indications. It is an investigational drug and is not approved by the FDA. All nine trials listed for Dimebon have been completed, with no active trials currently ongoing.

What clinical trials is Dimebon in?

Dimebon has been studied in several completed Phase 1 trials, including NCT00824590, NCT00825084, NCT00827034, and NCT00975481. These trials evaluated the drug's pharmacokinetics, safety, tolerability, and potential for abuse in healthy subjects and in patients with Alzheimer's or Huntington's disease.

Is Dimebon the same as Latrepirdine?

Yes, Dimebon is also known as Latrepirdine. In clinical trials, it has been referred to by the code name PF-01913539. The drug has been studied under these names in trials for Alzheimer's Disease and Huntington's Disease.