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New Oral Anticoagulant Therapy for the Prevention of Blood Clots Following Hip or Knee Replacement Surgery

A Comparison of the Oral Anticoagulant LY517717 Difumarate to Subcutaneous Enoxaparin for the Prevention of Venous Thromboembolic Events (VTE) Post-Total Hip Replacement (THR) and Post-Total Knee Replacement (TKR) Surgery

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00074828
Enrollment
511
Registered
2003-12-23
Start date
2003-12-31
Completion date
2005-05-31
Last updated
2008-03-31

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

Conditions

Total Hip Replacement, Total Knee Replacement

Keywords

elective, primary unilateral

Brief summary

LY517717 (a capsule given by mouth) is a blood thinner that may prevent blood clots from forming in the legs and may prevent those blood clots from traveling to the lungs. Leg and lung blood clots occur commonly after patients have surgery to replace a hip or knee joint. These clots often occur while patients are in bed in the hospital after hip or knee joint surgery. The purpose of this study is to test if different dose strengths (amount of drug in the capsules) of LY517717 can prevent blood clots from forming and to determine if LY517717 is safe. This study will compare LY517717 to enoxaparin, another blood thinner. Enoxaparin is one of the standard medications given after hip or knee joint surgery.

Interventions

DRUGLY517717
DRUGenoxaparin

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Are scheduled for total knee or hip replacement surgery (only one side, first time joint replacement) * Are at least 18 years of age and no more than 75 years of age. * Have a body weight more than 50 kg and less than 120 kg. * Sign an approved Eli Lilly and Company informed consent document.

Exclusion criteria

* Have had hip or knee replacement surgery in the non-surgical leg or any surgical procedure in the surgical leg within 6 months prior to enrollment. * Other surgeries (brain, spinal cord, eye within 12 months; chest or abdominal surgery within 1 month). * Have taken drugs that might increase possibility of bleeding. * Other risk factors for bleeding (bleeding disorders, abnormal results on blood tests, ulcers) * Increased risk for blood clots.

Design outcomes

Primary

MeasureTime frame
Efficacy of LY517717 to enoxaparin in the prevention of VTEs measured by the proportion of patients with VTE event (DVT and/or PE) as confirmed by bilateral venography or on clinical assessmentend of study drug administration

Secondary

MeasureTime frame
Safety and tolerability, major and minor bleeding, death due to VTE, effect on QTc duration, AEs and SAEs, hepatobiliary and other safety lab parametersbaseline, daily during therapy, at follow up visit
Pharmacokinetics and pharmacodynamicspredose, daily during therapy
Compare the effect of LY517717 versus enoxaparin measured by DVT, Proximal DVT, Distal DVT and PEend of study drug administration
Compare the effect of LY517717 versus enoxaparin with confirmed VTEend of study drug administration
Compare the effect of LY517717 versus enoxaparin measured by all confirmed VTEs and /or clinically suspected and confirmed VTEthrough follow up

Countries

Australia, Austria, Belgium, Czechia, Germany, Hungary, Italy, Poland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026