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Mechanisms of Deep Vein Thrombosis (DVT) and Vein Wall Fibrosis

Mechanisms of Deep Vein Thrombosis (DVT) and Vein Wall Fibrosis

Status
UNKNOWN
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04833764
Enrollment
30
Registered
2021-04-06
Start date
2021-06-01
Completion date
2025-06-01
Last updated
2021-10-15

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

Conditions

Deep Vein Thrombosis Leg, Post-thrombotic Syndrome

Keywords

Contact pathway inhibition, Coagulation factor XI inhibition, Anticoagulant, Deep vein thrombosis, Venous thrombosis

Brief summary

The goal of this study is to determine the safety and tolerability or efficacy of adjunctive treatments (including rosuvastatin 20 mg daily) in combination with standard anticoagulation therapy (Factor Xa inhibitors) in patients with lower extremity deep vein thrombosis (DVT). The efficacy of adjunctive treatments to prevent the development of post thrombotic syndrome (PTS) after DVT will be evaluated.

Detailed description

Post-thrombotic syndrome (PTS) is a significant complication that occurs up to 75% of patients after DVT. Rosuvastatin is a HMGCoA reductase inhibitor that has anti-inflammatory effects. In this study, the investigators will evaluate the safety and tolerability of combination standard anticoagulation therapy (e.g. Factor Xa inhibitor, rivaroxaban, apixaban) and three months of 20 mg dose of rivaroxaban and its efficacy as prophylaxis against PTS after lower extremity DVT. After the diagnosis of lower extremity DVT with either duplex venous ultrasound or other imaging, study participants will initiate standard rivaroxaban therapy as per standard medical care. All consented participants in this trial will receive three months of rosuvastatin (20 mg daily dose). Assessment of post thrombotic syndrome follow up will continue for 365 days from the time of DVT diagnosis or until resolution or stabilization of any clinically significant drug related adverse event, after which they will be considered off-study.

Interventions

DRUGRosuvastatin

Oral administration of 20 mg rosuvastatin for at least 3 months

Sponsors

Khanh Nguyen
Lead SponsorFED

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

This is a prospective, single arm Phase 1/Phase 2 study of patients with lower extremity DVT. Phase 1 will assess safety and tolerability of xisomab 3G3 in patients with lower extremity DVT on standard rivaroxaban therapy in 12-18 subjects. Three doses of xisomab 3G3 (42, 126, or 252 mg IV) will be tested to determine the maximum tolerated dose (MTD) with the dose limiting toxicity as any major bleeding or serious adverse event. Phase 2 will assess the efficacy of xisomab 3G3 for the prevention of PTS and compare the 1 year incidence of PTS as determined by the Villalta score in patients with lower extremity DVT on standard rivaroxaban therapy in 30 study participants.

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Men and women * Diagnosis of a first episode of acute proximal leg DVT within 4 weeks of initial DVT diagnosis and without symptomatic pulmonary embolism (PE) * Must have ECOG performance status ≤ 2 * Expected life expectancy of \>2 years * Before initiation of anticoagulation, must have adequate platelet count: Platelet count \> 100 x 10\^9/L, * Before initiation of anticoagulation, must have adequate hemoglobin (Hgb) count: Hgb \> 9 mg/DL * Before initiation of anticoagulation, must have normal INR and PTT: INR ≤ 1.5 and aPTT≤40

Exclusion criteria

* Concurrent participation in another therapeutic clinical trial * History of prior DVT in the previous 2 years * Recurrent deep vein thrombosis (DVT) * Established post thrombotic syndrome (PTS) * Limb-threatening circulatory compromise * Pulmonary embolism with hemodynamic compromise * Deranged baseline coagulation profile before initiation of anticoagulation: INR \> 1.5 or aPTT prolonged \>40 * Active bleeding within last 3 months * Anemia with Hemoglobin\<9 mg/dL * Thrombocytopenia with platelets \< 100,000/ml * Previously documented hypersensitivity to either the drug or excipients * Any contraindication to anticoagulation or allergy to factor V inhibitors or ferumoxytol * Any contraindication to magnetic resonance imaging (MRI) including metal implants or claustrophobia * Severe hepatic impairment as defined by Childs-Pugh Class B or C * Severe renal impairment with CrCl\<30 ml/min, * Taking any P-GP or strong CYP3A4 inhibitors or inducers * History of major bleeding including history of gastrointestinal bleeding or intracranial bleeding * Known history of bleeding diathesis * History of chronic atrial fibrillation or stroke * History of active cancer or malignancy within 1 year, * Life expectancy \<2 years. * Patients requiring emergent or urgent surgery or procedures within the first 3 months of the study that cannot be postponed will be excluded. * Patients who are breastfeeding or anticipate pregnancy * Participant is pregnant or breastfeeding * Participant is a prisoner (protected population)

Design outcomes

Primary

MeasureTime frameDescription
Post-thrombotic syndrome365 dayIncidence of post-thrombotic syndrome as measured by the Villalta Scale (score = or \> 4). Minimum score=0, Maximum score=33, and a higher score indicates worse outcome.

Secondary

MeasureTime frameDescription
Severity of post-thrombotic syndrome (PTS)365 dayVillalta score severity of post-thrombotic syndrome

Countries

United States

Contacts

Primary ContactKhanh P Nguyen, MD
nguykha@ohsu.edu5034947145
Backup ContactTahnee Groat, MPH
groat@ohsu.edu503-220-8262

Outcome results

None listed

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