Phase 1 Pediatric Pharmacokinetics/Pharmacodynamics (PK/PD) Study
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ClinicalTrials.gov Identifier: NCT02303431 |
Recruitment Status :
Completed
First Posted : December 1, 2014
Last Update Posted : January 19, 2022
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Condition or disease | Intervention/treatment | Phase |
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Deep Vein Thrombosis Venous Thromboembolism | Drug: Edoxaban low dose Drug: Edoxaban high dose | Phase 1 |
Phase 1, open-label, multiple-center study in pediatric patients from 0 to < 18 years of age. Patients will receive a single dose of edoxaban to match either the 30 mg (low dose) or the 60 mg (high dose) exposure in adults. Exact doses will be selected during the study on the basis of PK modeling of emerging data. If unanticipated exposures are observed, the target doses may be modified to best match expected exposure response relationships observed in adults.
Enrollment in the study will start with the low dose, highest age group (adolescents) and will continue from low to high dose in each age group and from higher to lower age groups. Enrollment in the next dose/age cohort will begin after 50% of the subjects have completed the previous dose/age cohort.
Age cohorts and dose groups: (6 participants each in low and high dose groups, for a total of 12 participants per age cohort)
- 12 to < 18 years of age
- 6 to <12 years of age
- 2 to <6 years of age
- 6 months to <2 years of age
- 0 to <6 months of age
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 66 participants |
Allocation: | Non-Randomized |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Basic Science |
Official Title: | A Phase 1, Open-Label, Single-Dose, Non-Randomized Study to Evaluate Pharmacokinetics and Pharmacodynamics of Edoxaban in Pediatric Patients |
Actual Study Start Date : | November 5, 2014 |
Actual Primary Completion Date : | September 11, 2021 |
Actual Study Completion Date : | September 11, 2021 |

Arm | Intervention/treatment |
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Experimental: Cohort 1a
12 to < 18 years of age: edoxaban low dose group
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Drug: Edoxaban low dose
Edoxaban low dose |
Experimental: Cohort 1b
12 to < 18 years of age: edoxaban high dose group
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Drug: Edoxaban high dose
Edoxaban high dose |
Experimental: Cohort 2a
6 to < 12 years of age: edoxaban low dose group
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Drug: Edoxaban low dose
Edoxaban low dose |
Experimental: Cohort 2b
6 to < 12 years of age: edoxaban high dose group
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Drug: Edoxaban high dose
Edoxaban high dose |
Experimental: Cohort 3a
2 to < 6 years of age: edoxaban low dose group
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Drug: Edoxaban low dose
Edoxaban low dose |
Experimental: Cohort 3b
2 to < 6 years of age: edoxaban high dose group
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Drug: Edoxaban high dose
Edoxaban high dose |
Experimental: Cohort 4a
6 months to <2 years of age: edoxaban low dose group
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Drug: Edoxaban low dose
Edoxaban low dose |
Experimental: Cohort 4b
6 months to <2 years of age: edoxaban high dose group
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Drug: Edoxaban high dose
Edoxaban high dose |
Experimental: Cohort 5a
0 to 6 months of age: edoxaban low dose group
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Drug: Edoxaban low dose
Edoxaban low dose |
Experimental: Cohort 5b
0 to 6 months: edoxaban high dose group
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Drug: Edoxaban high dose
Edoxaban high dose |
- Pharmacokinetics (PK)- Apparent systemic clearance (CL/F) [ Time Frame: within 36 hours postdose ]A sampling windows approach will be used: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 5 blood samplings)
- PK- Apparent volume of distribution (V/F) [ Time Frame: within 36 hours postdose ]A sampling windows approach will be used: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 5 blood samplings)
- PK- Area under the concentration-time curve (AUC) for edoxaban and metabolites [ Time Frame: within 36 hours postdose ]A sampling windows approach will be used: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 5 blood samplings); metabolites include D21-2393, D21-3231, D21-1402, and D21-2135
- PK- Metabolite/parent ratios for AUC [ Time Frame: within 36 hours postdose ]A sampling windows approach will be used: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 5 blood samplings); metabolites include D21-2393, D21-3231, D21-1402, and D21-2135
- Pharmacodynamic (PDy)- Mean prothrombin time (PT) [ Time Frame: Predose and within 36 hours postdose ]Predose and immediately after simultaneously scheduled PK blood samples, using a dosing windows approach: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 6 blood samplings)
- PDy- Mean activated partial thromboplastin time (aPTT) [ Time Frame: Predose and within 36 hours postdose ]Predose and immediately after simultaneously scheduled PK blood samples, using a dosing windows approach: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 6 blood samplings)
- PDy- Mean anti-Factor Xa (FXa) [ Time Frame: Predose and within 36 hours postdose ]Predose and immediately after simultaneously scheduled PK blood samples, using a dosing windows approach: 0.25 to 1, 1.5 to 3, 4 to 8, 9 to 14, and 24 to 36 hours postdose (total of 6 blood samplings)
- Safety- Number of participants with clinically significant changes in safety assessments [ Time Frame: Predose to Day 10 ]Safety assessments: adverse events, physical examination findings, vital signs, clinical laboratory assessments, and urinalysis.
- Mean palatability score for the liquid formulation on a 100 mm visual analog scale (VAS) [ Time Frame: within 30 minutes after dosing ]Bitterness, sweetness, and overall taste or aroma will be assessed by participants receiving the liquid oral suspension or their guardians using visual analog scale (VAS) scores

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | up to 18 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Is a pediatric subject requiring anticoagulant therapy
- Will abstain from the use of nonsteroidal anti-inflammatory drugs (such as ibuprofen), and other antiplatelet and anticoagulant agents (except for aspirin) from 24 hours prior to edoxaban dose until after the last PK sample is collected
- Will follow food and concomitant medication restrictions
Exclusion Criteria:
- Any major or clinically relevant unexplained bleeding during prior anticoagulant therapy
- History of abnormal bleeding or coagulation within last 6 months prior to study drug administration
- Renal function with glomerular filtration rate (GFR) less than 50% of normal for age and size
- Malabsorption disorders (e.g., cystic fibrosis or short bowel syndrome)
- Hepatic disease associated with coagulopathy leading to a clinically relevant bleeding risk, alanine transaminase (ALT) > 5 times the upper limit of normal (ULN) or total bilirubin > 2 times the ULN with direct bilirubin > 20% of the total

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02303431

Study Director: | Global Clinical Leader | Daiichi Sankyo, Inc. |
Responsible Party: | Daiichi Sankyo, Inc. |
ClinicalTrials.gov Identifier: | NCT02303431 |
Other Study ID Numbers: |
DU176b-A-U157 2015-005732-18 ( EudraCT Number ) |
First Posted: | December 1, 2014 Key Record Dates |
Last Update Posted: | January 19, 2022 |
Last Verified: | January 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/ |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) Clinical Study Report (CSR) |
Time Frame: | Studies for which the medicine and indication have received European Union (EU) and United States (US), and/or Japan (JP) marketing approval on or after 01 January 2014 or by the US or EU or JP Health Authorities when regulatory submissions in all regions are not planned and after the primary study results have been accepted for publication. |
Access Criteria: | Formal request from qualified scientific and medical researchers on IPD and clinical study documents from clinical trials supporting products submitted and licensed in the United States, the European Union and/or Japan from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent. |
URL: | https://vivli.org/ourmember/daiichi-sankyo/ |
Pediatric Pharmacokinetics (PK) Pharmacodynamics (PDy) Anticoagulant Safety |
Thrombosis Thromboembolism Venous Thromboembolism Venous Thrombosis Embolism and Thrombosis Vascular Diseases Cardiovascular Diseases Edoxaban |
Factor Xa Inhibitors Antithrombins Serine Proteinase Inhibitors Protease Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Anticoagulants |