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Pradaxa Tablet Proton Pump Inhibitor (PPI) Bioavailability (BA) Study in Japan

Relative Bioavailability of Tablet Formulation of Dabigatran Etexilate With and Without Co-administration of Rabeprazole in Healthy Male Subjects (an Open-label, Single-dose, Two-period, Single-arm Study)

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03143166
Enrollment
36
Registered
2017-05-08
Start date
2017-05-22
Completion date
2017-08-02
Last updated
2019-01-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-alcoholic Fatty Liver Disease

Brief summary

The primary objective of this trial is to investigate the relative Bioavailability (BA) of tablet formulation of Dabigatran etexilate (DE) with and without co-administration of rabeprazole in healthy male subjects. The secondary objective is the evaluation and comparison of several pharmacokinetic parameters between the treatments.

Interventions

DRUGDabigatran Etexilate

Tablet, film coated

DRUGRabeprazol sodium

Tablet

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
20 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Healthy male subjects according to the investigator's assessment, based on a complete medical history including a physical examination, vital signs (blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests * Age ≥ 20 and ≤ 40 years at informed consent * Body mass index (BMI) of 18 ≥ and ≤ 25 kg/m2 at screening * Signed and dated written informed consent prior to admission to the study in accordance with Good Clinical Practice (GCP) and local legislation

Exclusion criteria

* Any finding in the medical examination (including blood pressure (BP), pulse rate (PR) or electrocardiogram (ECG)) is deviating from normal and judged as clinically relevant by the investigator * Measurement of systolic blood pressure (BP) outside the range of 90 to 140 mmHg, diastolic blood pressure outside the range of 50 to 90 mmHg, or pulse rate (PR) outside the range of 45 to 90 bpm at screening * Any laboratory value outside the reference range before administration of DE that the investigator considers to be of clinical relevance * Any evidence of a concomitant disease judged as clinically relevant by the investigator * Any relevant bleeding history considered by the investigator * Any history or evidence of blood dyscrasia, haemorrhagic diathesis, severe thrombocytopenia, cerebrovascular haemorrhage, bleeding tendencies associated with active ulceration or overt bleeding of gastrointestinal, respiratory or genitourinary tract or any disease or condition with haemorrhagic tendencies * Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders * Any history of hypochlorhydria or achlorhydria * Cholecystectomy and/or surgery of the gastrointestinal tract that could interfere with the pharmacokinetics of the trial medication (except appendectomy and simple hernia repair) * Planned surgeries within four weeks following the end-of trial examination * Diseases of the central nervous system (including but not limited to any kind of seizures or stroke), and other relevant neurological or psychiatric disorders * History of relevant orthostatic hypotension, fainting spells, or blackouts * Chronic or relevant acute infections * History of relevant allergy or hypersensitivity (including allergy to the trial medication or its excipients) * Use of drugs within 30 days prior to administration of trial medication if that might reasonably influence the results of the trial (incl. QT/QTc interval prolongation) * Participation in another trial where an investigational drug has been administered within 60 days prior to planned administration of trial medication, or current participation in another trial involving administration of investigational drug * Smoker (more than 10 cigarettes or 3 cigars or 3 pipes per day) * Inability to refrain from smoking at trial site * Alcohol abuse (consumption of more than 30 g per day: e.g., 750 ml of beer, 1.5 gous \[equivalent to 270 mL\] of Sake) * Drug abuse or positive drug screening * Blood donation of more than 100 mL within 30 days prior to administration of trial medication or intended donation during the trial * Intention to perform excessive physical activities within one week prior to administration of trial medication or during the trial * Inability to comply with dietary regimen of trial site * Subject is assessed as unsuitable for inclusion by the investigator, for instance, because considered not able to understand and comply with study requirements, or has a condition that would not allow safe participation in the study

Design outcomes

Primary

MeasureTime frameDescription
Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Total Dabigatran (AUC0-tz).Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.This endpoint calculates area under the concentration-time curve of total dabigatran in plasma over the time interval from 0 to the time of last quantifiable time point.
Maximum Concentration of Total Dabigatran in Plasma (Cmax).Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.This outcome is maximum measured concentration of the total dabigatran in plasma

Secondary

MeasureTime frameDescription
Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Free Dabigatran (AUC0-tz).Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.This endpoint calculates area under the concentration-time curve of free dabigatran in plasma over the time interval from 0 to the time of last quantifiable time point.
Maximum Concentration of Free Dabigatran in Plasma (Cmax).Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.This outcome is maximum measured concentration of the free dabigatran in plasma
Area Under the Concentration-time Curve of Total Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.This endpoint calculates area under the concentration-time curve of total dabigatran in plasma over the time interval from 0 extrapolated to infinity
Area Under the Concentration-time Curve of Free Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.This endpoint calculates area under the concentration-time curve of free dabigatran in plasma over the time interval from 0 extrapolated to infinity.

Countries

Japan

Participant flow

Recruitment details

This was open label, 2 period, fixed sequence (RT), single arm study in 36 healthy male Japanese subjects. All subjects were orally treated with single dose of 110 milligram (mg) dabigatran etexilate (DE) tablet formulation alone in period 1 and with 20 mg rabeprazole tablet in period 2 with 4 days of rabeprazole pre-medication.

Pre-assignment details

After it had been determined that the subject met all eligibility criteria, a unique subject number was assigned. The number was recorded on electronic Case Report Forms and correspondence regarding the subject. Once a subject number had been assigned, it could not be reassigned to any other subject. Randomisation was not planned in this study.

Participants by arm

ArmCount
Total Subjects
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone (Reference) after an overnight fast of at least 10 hours (h) without pretreatment with rabeprazole 20 mg tablet in period 1 followed by single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets (Test) once daily with 4 days of rabeprazole pre-treatment in period 2. The treatments of dabigatran etexilate were separated by a wash-out phase of at least 4 days.
36
Total36

Withdrawals & dropouts

PeriodReasonFG000
Period 2 (Washout of at Least 4 Days)Withdrawal by Subject1

Baseline characteristics

CharacteristicTotal Subjects
Age, Continuous26.3 Years
STANDARD_DEVIATION 4.7
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
36 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
36 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
0 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
36 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 360 / 35
other
Total, other adverse events
0 / 360 / 35
serious
Total, serious adverse events
0 / 360 / 35

Outcome results

Primary

Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Total Dabigatran (AUC0-tz).

This endpoint calculates area under the concentration-time curve of total dabigatran in plasma over the time interval from 0 to the time of last quantifiable time point.

Time frame: Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.

Population: Pharmacokinetic set (PKS): All treated subjects who provided at least 1 observation for at least 1 primary endpoint without important protocol violations with respect to the statistical evaluation of Pharmacokinetic (PK) endpoints were included in PKS.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dabigatran Etexilate 110 mg (Reference)Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Total Dabigatran (AUC0-tz).667 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 123
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Total Dabigatran (AUC0-tz).192 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 109
90% CI: [21.346, 38.996]ANOVA
Primary

Maximum Concentration of Total Dabigatran in Plasma (Cmax).

This outcome is maximum measured concentration of the total dabigatran in plasma

Time frame: Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.

Population: PKS

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dabigatran Etexilate 110 mg (Reference)Maximum Concentration of Total Dabigatran in Plasma (Cmax).83.1 Nano gram per milliliter (ng/mL)Geometric Coefficient of Variation 118
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)Maximum Concentration of Total Dabigatran in Plasma (Cmax).21.8 Nano gram per milliliter (ng/mL)Geometric Coefficient of Variation 105
90% CI: [20.066, 34.665]ANOVA
Secondary

Area Under the Concentration-time Curve of Free Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).

This endpoint calculates area under the concentration-time curve of free dabigatran in plasma over the time interval from 0 extrapolated to infinity.

Time frame: Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.

Population: PKS

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dabigatran Etexilate 110 mg (Reference)Area Under the Concentration-time Curve of Free Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).618 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 107
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)Area Under the Concentration-time Curve of Free Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).188 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 93.4
90% CI: [23.404, 40.037]ANOVA
Secondary

Area Under the Concentration-time Curve of Total Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).

This endpoint calculates area under the concentration-time curve of total dabigatran in plasma over the time interval from 0 extrapolated to infinity

Time frame: Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.

Population: PKS

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dabigatran Etexilate 110 mg (Reference)Area Under the Concentration-time Curve of Total Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).702 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 110
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)Area Under the Concentration-time Curve of Total Dabigatran in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-∞).214 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 96.6
90% CI: [23.26, 40.234]ANOVA
Secondary

Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Free Dabigatran (AUC0-tz).

This endpoint calculates area under the concentration-time curve of free dabigatran in plasma over the time interval from 0 to the time of last quantifiable time point.

Time frame: Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.

Population: PKS

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dabigatran Etexilate 110 mg (Reference)Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Free Dabigatran (AUC0-tz).588 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 119
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)Area Under the Plasma Concentration-time Curve From 0 to Time of Last Quantifiable Time Point (tz) of Free Dabigatran (AUC0-tz).164 Nanogram*Hour/ millilitre (ng*h/mL)Geometric Coefficient of Variation 110
90% CI: [20.914, 37.537]ANOVA
Secondary

Maximum Concentration of Free Dabigatran in Plasma (Cmax).

This outcome is maximum measured concentration of the free dabigatran in plasma

Time frame: Samples were collected 1 hour Pre-dose and at 0:30, 1:00, 1:30, 2:00, 3:00, 4:00, 6:00, 8:00, 12:00, 24:00 36:00 and 48:00 hours post dose.

Population: PKS

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Dabigatran Etexilate 110 mg (Reference)Maximum Concentration of Free Dabigatran in Plasma (Cmax).72.9 Nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 114
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)Maximum Concentration of Free Dabigatran in Plasma (Cmax).20.0 Nanogram per milliliter (ng/mL)Geometric Coefficient of Variation 103
90% CI: [21.023, 36.118]ANOVA

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026