Rivaroxaban for Treatment in Venous or Arterial Thrombosis in Neonates
Einstein Jr
7-day Study of the Safety, Efficacy and the Pharmacokinetic and Pharmacodynamic Properties of Oral Rivaroxaban in Children From Birth to Less Than 6 Months With Arterial or Venous Thrombosis
2 other identifiers
interventional
10
7 countries
9
Brief Summary
The purpose of this study is to find out whether rivaroxaban is safe and effective to use in children age newborn to less than 6 months and how long it stays in the body and how it is used in the body. Safety will be assessed by looking at the incidence and types of bleeding events. There will also be a check for worsening of blood clots.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_1
Started Nov 2015
Typical duration for phase_1
9 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 4, 2015
CompletedFirst Posted
Study publicly available on registry
October 1, 2015
CompletedStudy Start
First participant enrolled
November 19, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 18, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
December 18, 2017
CompletedResults Posted
Study results publicly available
July 10, 2018
CompletedJuly 10, 2018
June 1, 2018
2.1 years
September 4, 2015
June 12, 2018
June 12, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (10)
Concentration of Rivaroxaban in Plasma as a Measure of Pharmacokinetics at Day 1
Concentration of pharmacokinetic parameters of rivaroxaban in plasma was evaluated.
30 minutes to 1.5 hours post-dose; 2 to 4 hours post-dose (bid dosing) and 30 minutes to 3 hours post-dose; 7 to 8 hours post-dose on Day 1 (tid dosing)
Concentration of Rivaroxaban in Plasma as a Measure of Pharmacokinetics at Day 3
Concentration of pharmacokinetic parameters of rivaroxaban in plasma was evaluated.
2 to 8 hours post-dose (bid dosing) and 30 minutes to 3 hours post-dose; 7 to 8 hours post-dose on Day 3 (tid dosing)
Concentration of Rivaroxaban in Plasma as a Measure of Pharmacokinetics at Day 8
Concentration of pharmacokinetic parameters of rivaroxaban in plasma was evaluated.
10 to 16 hours post-dose on Day 8 (bid dosing)
Change From Baseline in Prothrombin Time at Day 1
Prothrombin time is a global clotting test used for the assessment of the extrinsic pathway of the blood coagulation cascade.
10-16 hours post-dose on Day 8 (baseline), 2-4 hours after the first dose on Day 1 (bid dosing) and 7-8 hours after the first dose on Day 1 (tid dosing)
Change From Baseline in Prothrombin Time at Day 3
Prothrombin time is a global clotting test used for the assessment of the extrinsic pathway of the blood coagulation cascade.
10-16 hours post-dose on Day 8 (baseline), 2-8 hours post-dose on Day 3 (bid dosing) and 0.5-3 hours post-dose on Day 3 (tid dosing)
Change From Baseline in Activated Partial Thromboplastin Time (aPTT) at Day 1
The Activated partial thromboplastin time (aPTT) is a screening test for the intrinsic pathway and is sensitive for deficiencies of factors I, II, V, VIII, IX, X, XI and XII.
10-16 hours post-dose on Day 8 (baseline), 2-4 hours after the first dose on Day 1 (bid dosing) and 7-8 hours after the first dose on Day 1 (tid dosing)
Change From Baseline in Activated Partial Thromboplastin Time (aPTT) at Day 3
The Activated partial thromboplastin time (aPTT) is a screening test for the intrinsic pathway and is sensitive for deficiencies of factors I, II, V, VIII, IX, X, XI and XII.
10-16 hours post-dose on Day 8 (baseline), 2-8 hours post-dose on Day 3 (bid dosing) and 0.5-3 hours post-dose on Day 3 (tid dosing)
Anti-factor Xa Activity (Anti-Xa) Values at Day 1
The individual anti-Factor Xa activity was determined ex-vivo using a photometric method.
2-4 hours after the first dose on Day 1 (bid dosing) and 7-8 hours after the first dose on Day 1 (tid dosing)
Anti-factor Xa Activity (Anti-Xa) Values at Day 3
The individual anti-Factor Xa activity was determined ex-vivo using a photometric method.
2-8 hours post-dose on Day 3 (bid dosing) and 0.5-3 hours post-dose on Day 3 (tid dosing)
Anti-factor Xa Activity (Anti-Xa) Values at Day 8
The individual anti-Factor Xa activity was determined ex-vivo using a photometric method.
10-16 hours post-dose on Day 8 (both bid and tid dosing)
Secondary Outcomes (2)
Number of Participants With Major and Clinically Relevant Non-Major Bleeding Events
From start of study drug administration until 30-day post study treatment period
Number of Participants With Symptomatic Recurrent Venous Thromboembolism and Asymptomatic Deterioration in Thrombotic Burden on Repeat Imaging
From start of study drug administration until 30-day post study treatment period
Study Arms (1)
Arm 1
EXPERIMENTALRivaroxaban oral suspension from granules will be dosed according to body weight as oral 0.1% suspension (1 mg/mL)
Interventions
Body weight adjusted dosing of rivaroxaban to achieve a similar exposure in the range as that observed in adults treated for venous thromboembolism (VTE) with 20 mg once daily.
Eligibility Criteria
You may qualify if:
- Children from birth to less than 6 months with documented symptomatic or asymptomatic venous or arterial thrombosis who have been treated with anticoagulant therapy for at least 5 days.
- Gestational age at birth of at least 37 weeks.
- Hemoglobin, platelets, creatinine, ALT and total and direct bilirubin assessed within 10 days prior to enrollment.
- Oral feeding/nasogastric/gastric feeding for at least 10 days.
- Informed consent provided.
- Body weight \>2600 g
You may not qualify if:
- Active bleeding or high risk for bleeding contraindicating anticoagulant therapy, including history of intra-ventricular bleeding.
- Symptomatic progression of thrombosis during preceding anticoagulant treatment.
- Planned invasive procedures, including lumbar puncture and removal of non-peripherally placed central lines during study treatment.
- Hepatic disease which is associated with either: coagulopathy leading to a clinically relevant bleeding risk, or alanine aminotransferase (ALT) \> 5x upper level of normal (ULN) or total bilirubin (TB) \> 2x ULN with direct bilirubin \> 20% of the total.
- Creatinine \>1.5 times of normal.
- Uncontrolled Hypertension defined as \>95th percentile.
- History of gastrointestinal disease or surgery associated with impaired absorption.
- Platelet count \<100 x 109/L.
- Concomitant use of strong inhibitors of both cytochrome P450 isoenzyme 3A4 (CYP3A4) and P-glycoprotein (P-gp), e.g. all human immunodeficiency virus protease inhibitors and the following azole-antimycotics agents: ketoconazole, itraconazole, voriconazole, posaconazole, if used systemically (fluconazole is allowed)
- Concomitant use of strong inducers of CYP3A4, e.g. rifampicin, rifabutin, phenobarbital, phenytoin and carbamazepine
- Indication for anticoagulant therapy other than current thrombosis.
- Indication for antiplatelet therapy or non-steroid anti-inflammatory drug (NSAID) therapy. Incidental use is allowed.
- Hypersensitivity to rivaroxaban or its excipients.
- Participation in a study with an investigational drug or medical device within 30 days prior to enrollment.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Bayerlead
- Janssen Research & Development, LLCcollaborator
Study Sites (9)
Unknown Facility
Vienna, 1090, Austria
Unknown Facility
Montpellier, 34059, France
Unknown Facility
Erlangen, 91052, Germany
Unknown Facility
Ramat Gan, 5262000, Israel
Unknown Facility
Milan, Lombardy, 20122, Italy
Unknown Facility
Barcelona, 08035, Spain
Unknown Facility
Madrid, 28007, Spain
Unknown Facility
Madrid, 28046, Spain
Unknown Facility
Izmir, 35-100, Turkey (Türkiye)
Related Publications (1)
Monagle P, Lensing AWA, Thelen K, Martinelli I, Male C, Santamaria A, Samochatova E, Kumar R, Holzhauer S, Saracco P, Simioni P, Robertson J, Grangl G, Halton J, Connor P, Young G, Molinari AC, Nowak-Gottl U, Kenet G, Kapsa S, Willmann S, Pap AF, Becka M, Twomey T, Beyer-Westendorf J, Prins MH, Kubitza D; EINSTEIN-Jr Phase 2 Investigators. Bodyweight-adjusted rivaroxaban for children with venous thromboembolism (EINSTEIN-Jr): results from three multicentre, single-arm, phase 2 studies. Lancet Haematol. 2019 Oct;6(10):e500-e509. doi: 10.1016/S2352-3026(19)30161-9. Epub 2019 Aug 13.
PMID: 31420317DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Therapeutic Area Head
- Organization
- Bayer
Study Officials
- STUDY DIRECTOR
Bayer Study Director
Bayer
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 4, 2015
First Posted
October 1, 2015
Study Start
November 19, 2015
Primary Completion
December 18, 2017
Study Completion
December 18, 2017
Last Updated
July 10, 2018
Results First Posted
July 10, 2018
Record last verified: 2018-06