Drug-drug Interaction Study in Healthy Male Volunteers Following the Administration of Pantoprazole and Rosuvastatin

Overview[ - collapse ][ - ]

Purpose This is a single-center, randomized, 2-period, 2-sequence, cross-over study.
ConditionDrug Interaction Potentiation
InterventionDrug: Rosuvastatin, Pantoprazole
PhasePhase 1
SponsorCentre hospitalier de l'Université de Montréal (CHUM)
Responsible PartyCentre hospitalier de l'Université de Montréal (CHUM)
ClinicalTrials.gov IdentifierNCT01146483
First ReceivedMay 25, 2010
Last UpdatedDecember 14, 2011
Last verifiedDecember 2011

Tracking Information[ + expand ][ + ]

First Received DateMay 25, 2010
Last Updated DateDecember 14, 2011
Start DateApril 2010
Estimated Primary Completion DateDecember 2011
Current Primary Outcome MeasuresTo determine changes induced by pantoprazole administration on the pharmacokinetics of rosuvastatin in healthy volunteers. [Time Frame: 2 weeks] [Designated as safety issue: No]Rosuvastatin will be administered with and without pantoprazole.
Current Secondary Outcome MeasuresNot Provided

Descriptive Information[ + expand ][ + ]

Brief TitleDrug-drug Interaction Study in Healthy Male Volunteers Following the Administration of Pantoprazole and Rosuvastatin
Official TitleDrug-drug Interaction Study in Healthy Male Volunteers Following the Administration of Pantoprazole and Rosuvastatin
Brief Summary
This is a single-center, randomized, 2-period, 2-sequence, cross-over study.
Detailed Description
Background:

Notions used to describe drug disposition are being reviewed as the roles of drug membrane
transporters are being discovered. In the near past, simple biophysical principles -
lipophilicity and passive diffusion - were used to explain drug absorption, distribution and
elimination. Today, with more than 367 genes known in humans, membrane transporters occupy a
much central role.

Rational:

Drug influx/efflux transporters are expressed in various organs with variable activities and
their presence increases (influx) or decreases (efflux) the intracellular concentration of a
drug in a specific organ. Therefore, intersubject variability in the activity of these
transporters due to genetic polymorphisms or concomitant drug treatments can explain
intersubject variability in drug actions.

Rosuvastatin is an HMG-CoA reductase inhibitor and a substrate of OATPs and BCRP. There is
not much information on the transporter-mediated disposition of rosuvastatin. Literature
suggests that rosuvastatin is a transporter substrate of the influx OATP1B1, 1B3 and 2B1 as
well as the efflux BCRP. The efflux of rosuvastatin by BCRP would be of major importance in
the hepatocytes. BCRP would be responsible of the excretion of 30% of the unchanged drug in
the bile. To confirm this hypothesis and identify patients at risk of toxicity with
rosuvastatin, we want to perform a drug-drug interactions study with an inhibitor of BCRP
namely, pantoprazole. With this approach, we will confirm if rosuvastatin is a real
substrate of BCRP as suggested in the literature.

Methodology:

To determine changes induced by the administration of pantoprazole on the pharmacokinetics
of rosuvastatin in healthy volunteers 16 healthy volunteers will be administered a single
dose of rosuvastatin with and without (placebo) pantoprazole.

Urine and plasma analysis will be performed by LC-MSMS. Pharmacokinetics analysis will be
performed. Plasma and urine concentrations of rosuvastatin will be analysed using a
noncompartmental method. Pharmacokinetic parameters calculated in this study will be Cmax,
Tmax, AUC0-72, AUC0-∞, Kel, T1/2β, CL/F, CLr, and Ae.
Study TypeInterventional
Study PhasePhase 1
Study DesignAllocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Crossover Assignment, Masking: Single Blind (Subject), Primary Purpose: Basic Science
ConditionDrug Interaction Potentiation
InterventionDrug: Rosuvastatin, Pantoprazole
Rosuvastatin, 10 mg tablets, single dose on the morning
Concomitant drug: Pantoprazole; 40 mg tablets, 2 single doses administered 1 hour before rosuvastatin and 23 hours after rosuvastatin administration. A placebo is given on the other period as a crossover design study.
Other Names:
  • Crestor 10 mg
  • Pantoloc 40 mg
Study Arm (s)
  • Active Comparator: Pantoprazole
    two-arm study: 2-period, 2-sequence, cross-over study.Volunteers will be administered either sequence 1 or sequence 2 randomly.
  • Placebo Comparator: Placebo

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment16
Estimated Completion DateDecember 2011
Estimated Primary Completion DateDecember 2011
Eligibility Criteria
Inclusion Criteria:

- Vital Signs, EKG and Clinical Laboratory Values within the normal range

- Body mass index (BMI) [20-29kg/m2]

- Caucasian male

- Age between [18-55]

- Healthy by physical exam

- Non or ex-smoker

Exclusion Criteria:

- Presence or history of intolerance or hypersensibility to proton pump inhibitors or
HMG-CoA reductase inhibitors.

- Significant illness. History of cardiovascular, kidney, liver or gastrointestinal
disease. Presence of cardiovascular, pulmonary, hematologic, neurologic, psychiatric,
endocrine, immunologic or dermatologic disease.

- consumption of an investigational product or donation of blood in the previous 28
days preceding the study.
GenderMale
Ages18 Years
Accepts Healthy VolunteersAccepts Healthy Volunteers
ContactsNot Provided
Location CountriesCanada

Administrative Information[ + expand ][ + ]

NCT Number NCT01146483
Other Study ID NumbersCE 09.252
Has Data Monitoring CommitteeNo
Information Provided ByCentre hospitalier de l'Université de Montréal (CHUM)
Study SponsorCentre hospitalier de l'Université de Montréal (CHUM)
CollaboratorsCentre de Recherche du Centre Hospitalier de l'Université de Montréal
Investigators Principal Investigator: Pavel Hamet, M.D., Ph.D. Centre hospitalier de l'Université de Montréal (CHUM)
Verification DateDecember 2011

Locations[ + expand ][ + ]

Centre hospitalier de l'Université de Montréal (CHUM)
Montreal, Quebec, Canada, H2W1T7