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Protocol for Phase IIb Study of YM150. A Randomized, Double-Blind, Double-Dummy, Parallel Group Study to Compare YM150 bid and qd Doses and Enoxaparin for Prevention of Venous Thromboembolism in Subjects Undergoing Elective Hip Replacement Surgery. A Phase IIb study to Evaluate the Efficacy and Safety of YM150 Compared to Enoxaparin in Subjects undergoing Elective Hip Replacement Surgery. - ONYX-3

Protocol for Phase IIb Study of YM150. A Randomized, Double-Blind, Double-Dummy, Parallel Group Study to Compare YM150 bid and qd Doses and Enoxaparin for Prevention of Venous Thromboembolism in Subjects Undergoing Elective Hip Replacement Surgery. A Phase IIb study to Evaluate the Efficacy and Safety of YM150 Compared to Enoxaparin in Subjects undergoing Elective Hip Replacement Surgery. - ONYX-3

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2008-004416-13-AT
Enrollment
2000
Registered
2009-02-25
Start date
2009-05-06
Completion date
Unknown
Last updated
2012-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prevention of venous thromboembolism after hip replacement surgery. MedDRA version: 9.1 Level: LLT Classification code 10043634 Term: Thrombosis prophylaxis

Interventions

Product Name: YM150 Product Code: YM150 Pharmaceutical Form: Film-coated tablet Current Sponsor code: YM150 Concentration unit: mg milligram(s) Concentration type: equal Concentration number: 15- Phar

Sponsors

Astellas Pharma Europe B.V.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Subject is eligible for the study if all of the following apply: 1. Written informed consent [and Healthcare Insurance Portability and Accountability Act (HIPAA) Authorization for U.S. sites only] has been obtained before screening. 2. Male or female subject aged 18 years or older. 3. Subject is scheduled for elective hip replacement surgery. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Subject will be excluded from participation if any of the following applies: 1. Female subject of childbearing potential who refuses to use a medically acceptable form of contraception throughout the study. (Acceptable methods of contraception are: oral or injectable hormonal contraceptives, intrauterine devices, vaginal hormonal rings, and only in combination with a male condom a vaginal diaphragm or cervical caps. Male study subjects should be advised to use male condom in addition to having their partner use another acceptable method during the study and for three months after the last dose.) 2. Female subject who is pregnant or lactating, or has a positive pregnancy test within 72 hours prior to randomization. 3. Subject has active bleeding or any condition associated with increased risk of bleeding including known hemorrhagic disorder or thrombocytopenia (platelet count 163 mg/day) at any time during the period extending from one week before the start of study drug until the end of the treatment period of 35 days. 10. Subject has hypersensitivity or any contraindications to iodinated contrast medium or enoxaparin. 11. Subject has planned indwelling intrathecal or epidural catheter for more than 6 hours after the end of surgery. 12. Subject has a creatinine clearance of 2 times or total bilirubin > 1.5 times ULN at screening. 14. Subject has a lower extremity amputation (toe(s) amputation only is acceptable). 15. Subject is scheduled for simultaneous bilateral hip replacement surgery. 16. Subject has participated in another clinical trial of an investigational drug (including placebo) or device within 30 days (or the limit set by national law, whichever is longer) of signing of informed consent for the present study. 17. Subject has previously participated in a clinical trial with YM150.

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective is to evaluate the efficacy and safety of 15 mg bid, 30 mg qd, 30 mg bid and 60 mg qd YM150 and to compare efficacy and safety with enoxaparin 40 mg qd, in subjects undergoing elective hip replacement surgery.;Secondary Objective: *To characterize PK of the active metabolite YM-222714, in subjects undergoing elective hip replacement surgery. *To characterize PK/Coagulation parameters relationship, in subjects undergoing elective hip replacement surgery. *To evaluate the effects of YM150 and enoxaparin on: - The health status of subjects undergoing elective hip replacement surgery, - The health care resource use associated with both treatment options, and - The cost-effectiveness associated with both treatment options. ;Primary end point(s): The primary efficacy variable is the composite of the following adjudicated events observed until day 12: • Proximal or distal DVT • Symptomatic DVT (proximal and distal) • Non-fatal PE • Death from all causes

Countries

Austria, Czech Republic, Denmark, Estonia, Finland, Germany, Hungary, Italy, Latvia, Lithuania, Netherlands, Slovakia, Spain, Sweden, United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026