Bioequipotency Study of Idrabiotaparinux and Idraparinux in Patients With Deep Venous Thrombosis of the Lower Limbs
EQUINOX
International, Multicenter, Randomized, Parallel Group, Double-blind Study, in Patients With Acute Symptomatic Deep Vein Thrombosis of the Lower Limbs, Demonstrating the Bioequipotency at Steady State of Equimolar Doses of SSR126517E (3.0 mg) Once a Week and SR34006 (2.5 mg) Once a Week, Documenting the Safety and Efficacy of Both Compounds During a 6-month Treatment, and Demonstrating the Neutralizing Effect of SSR29261 on the SSR126517E-induced Anti-Xa Activity
2 other identifiers
interventional
757
19 countries
19
Brief Summary
The three purposes of this study are the following:
- To compare during a 6-month treatment the safety and effectiveness of idrabiotaparinux (SSR126517) with that of idraparinux (SR34006), taking into account new events of deep venous thrombosis (DVT) and pulmonary embolism (PE), and bleeding risk;
- To compare the activities of idrabiotaparinux and idraparinux directly in blood during and after a 6-month treatment;
- To check the ability of avidin (SSR29261) to reverse the blood thinning activity of idrabiotaparinux at the end of a 6-month treatment period.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Apr 2006
19 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2006
CompletedFirst Submitted
Initial submission to the registry
April 4, 2006
CompletedFirst Posted
Study publicly available on registry
April 5, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2008
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2008
CompletedMarch 21, 2016
February 1, 2016
1.8 years
April 4, 2006
February 19, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Bioequipotency sub-study: idrabiotaparinux/idraparinux ratio for pharmacodynamic exposure parameters
Day 183
Avidin neutralizing effect substudy: decrease in anti-Xa activity between the start and end of the avidin infusion
Day 183 to Day 188
Secondary Outcomes (3)
Pharmacokinetic profile: idrabiotaparinux and idraparinux plasma concentrations
Days 15, 36, 57, 92 and 183
Safety: number of participants with clinically relevant bleedings and number of deaths as confirmed by a Central Independent Adjudication Committee (CIAC)
First 6 months
Efficacy: number of participants with symptomatic recurrent venous thromboembolism as confirmed by the CIAC
First 6 months
Study Arms (2)
Idrabiotaparinux
EXPERIMENTALIdrabiotaparinux sodium , 3.0 mg, once-weekly for 6 months. In avidin sub-study, participants receive on Day 183, avidin 100 mg or placebo (for avidin) (4 hours after Idrabiotaparinux administration)
Idraparinux
ACTIVE COMPARATORIdraparinux sodium, 2.5 mg, once-weekly for 6 months In avidin sub-study, participants receive on Day 183, placebo (for avidin) (4 hours after Idrabiotaparinux administration)
Interventions
0.5 mL pre-filled syringe for 3.0 mg Subcutaneous injection
0.5 mL pre-filled syringe for 2.5 mg Subcutaneous injection
100 mg in 10 mg/mL solution Intravenous infusion for 30 minutes
Avidin matching powder in 10 mg/mL solution Intravenous infusion for 30 minutes
Eligibility Criteria
You may qualify if:
- Confirmed acute symptomatic DVT of the lower limbs
You may not qualify if:
- Severe concomitant diseases (e.g. renal failure, hepatic failure, uncontrolled hypertension)
- Active bleeding or high risk for bleeding.
- Pregnancy or childbearing potential without proper contraceptive measures.
- Breastfeeding
- Known allergy to idraparinux, SSR126517E, or egg proteins
- Indication of prolonged anticoagulation for other reason than DVT of the lower limbs
- Symptomatic pulmonary embolism (PE)
- Life expectancy \< 6 months.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sanofilead
Study Sites (20)
Sanofi-Aventis
Bridgewater, New Jersey, 08807, United States
Sanofi-Aventis
Buenos Aires, 1642, Argentina
Sanofi-Aventis
Macquarie Park, NSW 2113, Australia
Sanofi-Aventis
Vienna, 1220, Austria
Sanofi-Aventis
Diegem, 1831, Belgium
Sanofi-Aventis
São Paulo, 05677-000, Brazil
Sanofi-Aventis
Laval, H7L 4A8, Canada
Sanofi-Aventis
Prague, 160 00, Czechia
Sanofi-Aventis
Copenhagen, Denmark
sanofi-aventis France
Paris, France
sanofi-aventis Israel
Netanya, Israel
Sanofi-aventis
Milan, Italy
sanofi-aventis Mexico
México, Mexico
sanofi-aventis, Netherlands
Gouda, Netherlands
Sanofi-Aventis
New Zealand, New Zealand
Sanofi-Aventis
Warsaw, 02-672, Poland
Sanofi-aventis
Moscow, 103045, Russia
Sanofi-Aventis
Midrand, 1685, South Africa
Sanofi-Aventis
Barcelona, 08019, Spain
sanofi-aventis Turkey
Istanbul, Turkey (Türkiye)
Related Publications (3)
Equinox Investigators. Efficacy and safety of once weekly subcutaneous idrabiotaparinux in the treatment of patients with symptomatic deep venous thrombosis. J Thromb Haemost. 2011 Jan;9(1):92-9. doi: 10.1111/j.1538-7836.2010.04100.x.
PMID: 20946157RESULTTrellu M, Fau JB, Cortez P, Cheng S, Paty I, Boelle E, Donat F, Sanderink GJ. Bioequipotency of idraparinux and idrabiotaparinux after once weekly dosing in healthy volunteers and patients treated for acute deep vein thrombosis. Br J Clin Pharmacol. 2013 May;75(5):1255-64. doi: 10.1111/bcp.12009.
PMID: 23078631DERIVEDPaty I, Trellu M, Destors JM, Cortez P, Boelle E, Sanderink G. Reversibility of the anti-FXa activity of idrabiotaparinux (biotinylated idraparinux) by intravenous avidin infusion. J Thromb Haemost. 2010 Apr;8(4):722-9. doi: 10.1111/j.1538-7836.2010.03746.x. Epub 2010 Jan 17.
PMID: 20088937DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
ICD CSD
Sanofi
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 4, 2006
First Posted
April 5, 2006
Study Start
April 1, 2006
Primary Completion
January 1, 2008
Study Completion
January 1, 2008
Last Updated
March 21, 2016
Record last verified: 2016-02