Trial Outcomes & Findings for Pradaxa Tablet Proton Pump Inhibitor (PPI) Bioavailability (BA) Study in Japan (NCT NCT03143166)

NCT ID: NCT03143166

Last Updated: 2019-01-16

Results Overview

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.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

36 participants

Primary outcome timeframe

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.

Results posted on

2019-01-16

Participant Flow

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.

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.

Participant milestones

Participant milestones
Measure
Dabigatran Etexilate 110 mg With and Without Rabeprazole 20 mg
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.
Period 1
STARTED
36
Period 1
COMPLETED
36
Period 1
NOT COMPLETED
0
Period 2 (Washout of at Least 4 Days)
STARTED
36
Period 2 (Washout of at Least 4 Days)
COMPLETED
35
Period 2 (Washout of at Least 4 Days)
NOT COMPLETED
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Dabigatran Etexilate 110 mg With and Without Rabeprazole 20 mg
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.
Period 2 (Washout of at Least 4 Days)
Withdrawal by Subject
1

Baseline Characteristics

TS

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Total Subjects
n=36 Participants
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.
Age, Continuous
26.3 Years
STANDARD_DEVIATION 4.7 • n=5 Participants • TS
Sex: Female, Male
Female
0 Participants
n=5 Participants • TS
Sex: Female, Male
Male
36 Participants
n=5 Participants • TS
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants • TS
Ethnicity (NIH/OMB)
Not Hispanic or Latino
36 Participants
n=5 Participants • TS
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants • TS
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants • TS
Race (NIH/OMB)
Asian
36 Participants
n=5 Participants • TS
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants • TS
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants • TS
Race (NIH/OMB)
White
0 Participants
n=5 Participants • TS
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants • TS
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants • TS

PRIMARY outcome

Timeframe: 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.

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.

Outcome measures

Outcome measures
Measure
Dabigatran Etexilate 110 mg (Reference)
n=36 Participants
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone after an overnight fast of at least 10 hours (h) without pre-treatment with rabeprazole 20 mg tablet.
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)
n=35 Participants
Subjects were treated orally with single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets once daily with 4 days of rabeprazole pre-treatment.
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
192 Nanogram*Hour/ millilitre (ng*h/mL)
Geometric Coefficient of Variation 109

PRIMARY outcome

Timeframe: 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

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

Outcome measures

Outcome measures
Measure
Dabigatran Etexilate 110 mg (Reference)
n=36 Participants
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone after an overnight fast of at least 10 hours (h) without pre-treatment with rabeprazole 20 mg tablet.
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)
n=35 Participants
Subjects were treated orally with single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets once daily with 4 days of rabeprazole pre-treatment.
Maximum Concentration of Total Dabigatran in Plasma (Cmax).
83.1 Nano gram per milliliter (ng/mL)
Geometric Coefficient of Variation 118
21.8 Nano gram per milliliter (ng/mL)
Geometric Coefficient of Variation 105

SECONDARY outcome

Timeframe: 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

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.

Outcome measures

Outcome measures
Measure
Dabigatran Etexilate 110 mg (Reference)
n=36 Participants
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone after an overnight fast of at least 10 hours (h) without pre-treatment with rabeprazole 20 mg tablet.
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)
n=35 Participants
Subjects were treated orally with single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets once daily with 4 days of rabeprazole pre-treatment.
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
164 Nanogram*Hour/ millilitre (ng*h/mL)
Geometric Coefficient of Variation 110

SECONDARY outcome

Timeframe: 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

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

Outcome measures

Outcome measures
Measure
Dabigatran Etexilate 110 mg (Reference)
n=36 Participants
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone after an overnight fast of at least 10 hours (h) without pre-treatment with rabeprazole 20 mg tablet.
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)
n=35 Participants
Subjects were treated orally with single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets once daily with 4 days of rabeprazole pre-treatment.
Maximum Concentration of Free Dabigatran in Plasma (Cmax).
72.9 Nanogram per milliliter (ng/mL)
Geometric Coefficient of Variation 114
20.0 Nanogram per milliliter (ng/mL)
Geometric Coefficient of Variation 103

SECONDARY outcome

Timeframe: 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

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

Outcome measures

Outcome measures
Measure
Dabigatran Etexilate 110 mg (Reference)
n=36 Participants
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone after an overnight fast of at least 10 hours (h) without pre-treatment with rabeprazole 20 mg tablet.
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)
n=35 Participants
Subjects were treated orally with single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets once daily with 4 days of rabeprazole pre-treatment.
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
214 Nanogram*Hour/ millilitre (ng*h/mL)
Geometric Coefficient of Variation 96.6

SECONDARY outcome

Timeframe: 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

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

Outcome measures

Outcome measures
Measure
Dabigatran Etexilate 110 mg (Reference)
n=36 Participants
Subjects were treated orally with dabigatran etexilate 110 mg tablet alone after an overnight fast of at least 10 hours (h) without pre-treatment with rabeprazole 20 mg tablet.
Dabigatran Etexilate 110 mg + Rabeprazole 20 mg Tablet (Test)
n=35 Participants
Subjects were treated orally with single dose of dabigatran etexilate 110 mg tablet and rabeprazole 20 mg tablets once daily with 4 days of rabeprazole pre-treatment.
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
188 Nanogram*Hour/ millilitre (ng*h/mL)
Geometric Coefficient of Variation 93.4

Adverse Events

Dabigatran Etexilate 110 mg (Reference)

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Dabigatran Etexilate 110 mg + Rabeprazole 20 mg (Test)

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Boehringer Ingelheim, Call Center

Boehringer Ingelheim

Phone: 1-800-243-0127

Results disclosure agreements

  • Principal investigator is a sponsor employee Boehringer Ingelheim (BI) acknowledges that investigators have the right to publish the study results. Investigators shall provide BI with a copy of any publication or presentation for review prior to any submission. Such review will be done with regard to proprietary information, information related to patentable inventions, medical, scientific, and statistical accuracy within 60 days. BI may request a delay of the publication in order to protect BI's intellectual property rights.
  • Publication restrictions are in place

Restriction type: OTHER