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Dimebon (PF-01913539)-Digoxin Drug-Drug Interaction Study In Healthy Subjects

Pfizer logo

Pfizer

Status and phase

Completed
Phase 1

Conditions

Alzheimer Disease
Huntington Disease

Treatments

Drug: dimebon
Drug: digoxin

Study type

Interventional

Funder types

Industry

Identifiers

NCT00831506
B1451021

Details and patient eligibility

About

This study has been designed to confirm, in healthy subjects, the lack of a clinically important pharmacokinetic interaction between Dimebon, at the proposed maximum commercial dose of 20 mg TID (administered every 8 hours), and digoxin (Lanoxin®) 0.125 mg QD, a sensitive P-gp substrate recommended by FDA.

Enrollment

12 patients

Sex

All

Ages

18 to 55 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Healthy male and/or female subjects between the ages of 18 and 55 years, inclusive (Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG and clinical laboratory tests).
  • Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lbs).

Exclusion criteria

  • A known history of hypersensitivity or previous intolerance to Dimebon or digoxin.
  • Evidence or history of clinically significant hematological, renal, endocrine,pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic,seasonal allergies at time of dosing) disease or clinical findings at screening.
  • 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.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Crossover Assignment

Masking

Quadruple Blind

12 participants in 2 patient groups

A
Experimental group
Description:
digoxin once daily (0.125 mg QD) plus placebo three times daily (TID), 8 hours apart for 14 days.
Treatment:
Drug: digoxin
Drug: digoxin
B
Experimental group
Description:
digoxin once daily (0.125 mg QD) plus Dimebon three times a day, 8 hours apart for 14 days (10 mg TID on Days 1-7 and 20 mg TID on Days 8-14).
Treatment:
Drug: dimebon
Drug: digoxin
Drug: digoxin

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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