Study to Evaluate the Safety, Pharmacokinetics and Pharmacodynamics of BI 655075 (Idarucizumab) Administered Alone or With Dabigatran Etexilate in Japanese Healthy Subjects

Study Overview
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Brief Summary
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The primary objective is to investigate the safety, tolerability and pharmacokinetics of BI 655075 following intravenous administration of single rising doses of BI 655075 when administered alone and after administration of dabigatran.

Official Title
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Randomised, Double-blind Within Dose Groups, Placebo-controlled Phase I Trial in Healthy Japanese Male Volunteers to Investigate Safety, Tolerability and Pharmacokinetics of Different Doses of BI 655075 (Part 1) and to Explore the Effective Dose of BI 655075 to Reverse Dabigatran Anticoagulant Activity (Part 2).

Conditions
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Healthy

Intervention / Treatment
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* Drug: Placebo to dose
* Drug: Idarucizumab
* Drug: Placebo to Idarucizumab
* Drug: dabigatran
* Drug: Idarucizumab


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: 1. Healthy Japanese male subjects Exclusion criteria: 1. Any relevant deviation from healthy conditions

Ages Eligible for Study
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Minimum Age: 20 Years
Maximum Age: 45 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Idarucizumab single doses<br>different infusion durations | Drug: Placebo to dose<br>* placebo<br>Drug: Idarucizumab<br>* short infusion<br>|
| Experimental: Idarucizumab with dabigatran<br>short infusion with 2 capsules dabigatran | Drug: Idarucizumab<br>* short infusion<br>Drug: Placebo to Idarucizumab<br>* Placebo to Idarucizumab<br>Drug: dabigatran<br>* 2 capsules dabigatran<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Percentage of Subjects With Drug-related Adverse Events in Part 1 and Part 2 | Percentage of subjects with drug-related adverse events in Part 1 and Part 2. | From first drug administration until 13 weeks after the last drug administration, upto 98 days (Part-I) & upto 108 days (Part-II) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Ae0-74,ss on Days 4 and 11 for Sum Dabigatran (Part II) | Amount of analyte eliminated in urine at steady state from the time point 0 hours to time point 74 hours. | 0-2 h, 2-6 h, 6-10 h, 10-12 h,12-14h, 14-26 h, 26-50 h, 50-74 h after drug administration of dabigatran etexilate on Day 4 and Day 11. | 
| AUC2-12,ss on Days 4 and 11 for Unbound Sum Dabigatran (Part II). | Area under the concentration-time curve of the dabigatran in plasma at steady state over the time interval 2 hours-12 hours. Time Frame: For dose group 5 to 7 (Day 1 to 3-Part-I):74hours (h), 74.5h, 75h, 76h, 78h, 80h, 82h, 84h, For dose group 8 (Day 1 to 3-Part-I): 74h, 74.5h, 75h, 76h, 78h, 80h, 82h, 84h and For dose group 5-7 (Day11 to Day13-Part II):242h, 242.167h, 242.5h, 243h, 244h,246h, 248h, 250h, 252h. For dose group 8 (Day11 to Day13-Part II):242h, 242.083h, 242.25h, 242.333h, 243.333h, 244h, 246h, 248h, 252h. | Day 4 (Part I) and Day 11 (Part II). Time frame are provided in detail in the Description section | 
| Cmax for Idarucizumab in the Part I & Part II. | Maximum measured concentration of the analyte in plasma for idarucizumab Time frame: For dose group 1 to 3 (Day 1 to 3-Part-I): predose, 0 (end of infusion), 0.033h, 0.083h, 0.167h, 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 2.5h, 3h, 4h, 6h, 8h, 10h, 12h, 16h, 24h, 48h. For dose group 4 (Day 1 to 3-Part-I): predose, -0.5h, 0 (end of infusion), 0.033h, 0.083h, 0.167h, 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 12h, 16h, 24h, 48h. For dose group 5-7 (Day11 to Day13-Part II): predose, 242h (end of infusion), 242.033h, 242.083h, 242.167h, 242.25h, 242.5h, 242.75h, 243h, 243.5h, 244h, 244.5h, 245h, 246h, 248h, 250h, 252h, 254h, 258h, 266h, 290h.For dose group 8 (day11 to Day13-Part II): predose, 242h (end of infusion), 242.083h, 242.25h, 242.333h, 242.367h, 242.5h, 242.833h, 243.333h, 244h, 245h, 246h, 248h, 252h, 254h, 266h, 290h, 314h. | Day 1 to 3 (Part I) and Day 11 to 13 (Part II); Time frame are provided in detail in the Description section | 
| AUC0-inf for Idarucizumab in the Part I & Part II. | Area under the concentration-time curve of the analyte in plasma for idarucizumab over the time interval from 0 extrapolated to infinity. Time frame: For dose group 1 to 3 (Day 1 to 3-Part-I): predose, 0 (end of infusion), 0.033h, 0.083, 0.167h, 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 2.5h, 3h, 4h, 6h, 8h, 10h, 12h, 16h, 24h, 48h. For dose group 4 (Day 1 to 3-Part-I): predose, -0.5h, 0 (end of infusion), 0.033h, 0.083h, 0.167h, 0.25h, 0.5h, 0.75h, 1h, 1.5h, 2h, 3h, 4h, 6h, 8h, 12h, 16h, 24h, 48h. For dose group 5-7 (Day11 to Day13-Part II): predose, 242h (end of infusion), 242.033h, 242.083h, 242.167h, 242.25h, 242.5h, 242.75h, 243h, 243.5h, 244h, 244.5h, 245h, 246h, 248h, 250h, 252h, 254h, 258h, 266h, 290h.For dose group 8 (day11 to Day13-Part II): predose, 242h (end of infusion), 242.083h, 242.25h, 242.333h, 242.367h, 242.5h, 242.833h, 243.333h, 244h, 245h, 246h, 248h, 252h, 254h, 266h, 290h, 314h. | Day 1 to 3 (Part I) and Day 11 to 13 (Part II); Time frame are provided in detail in the Description section | 
| Ae0-72 for Idarucizumab in the Part I & Part II. | Amount of idarucizumab eliminated in urine over the time interval 0-72. Time frame: For dose groups 1 to 3 (day1 to day4-Part-1):0-4 h, 4-8 h, 8-12 h, 12-24 h, 24-48 h, 48-72 h. For dose groups 5 to 7 (day 11 to day14-Part-II): 0-4 h, 4-8 h, 8-10 h, 10-12 h,12-24 h, 24-48 h, and 48-72 h. For dose groups 8 (day11 to day14-Part-II): 0-4h, 4-8 h, 8-10 h, 10-24 h, 24-48 h, 48-72 h. | Day 1 to 4 (Part I) and Day 11 to 14 (Part II); Time frame are provided in detail in the Description section | 
| Ae0-73 for the Dose Group 4 in the Part I | Amount of the analyte excreted in urine over the time interval 0-73 | For dose group 4 (day1 to day4-Part-1): 0-7h, 7-13h, 13-25h, 25-49h, 49-73h | 
| AUEC2-12 | Area under the effect curve over the time interval from 2 to 12h, AUEC2-12 on Days 4 and 11 for diluted thrombin time (dTT). For dose groups 5 to 7(day4-Part-II): 74h, 74.5h, 75h, 76h, 78h, 80h, 82h, 84h on day 4. For dose groups 5 to 7(day11-Part-II): 242h, 242.083h, 242.167h, 242.5h, 243h, 244h, 246h, 248h, 250h, 252h. For dose groups 8(day4-Part-II): 74.5 h, 78 h, 84 h on day 4. For dose groups 8(day11-Part-II): 242h, 242.083h,242.25h, 242.333h, 243.333h, 244h, 246h, 248h, 252h on day 11. AUEC is calculated by multiplying the ratio (Value at each time point/Ebase, unit of Vaue is [s] and Ebase is value [s] at baseline) by time. Therefore, Unit for AUEC2-12 is [h]. | Day 4 and Day 11 (Part II); Time frame are provided in detail in the Description section |