- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT02687204
Twice Daily Enoxaparin Prophylaxis in Reconstructive Surgery Patients
Optimization of Enoxaparin Prophylaxis Using Real-time Anti-Factor Xa Levels in Major Reconstructive Surgery Patients
Blood clots that form in the extremities (deep venous thrombosis) and lungs (pulmonary embolus) are feared complications of reconstructive surgery. One in ten patients with symptomatic pulmonary embolus will be dead in 60 minutes. Patients with deep venous thrombosis can develop the post-thrombotic syndrome, known to be a major driver of poor quality of life. These phenomena, broadly known as venous thromboembolism (VTE), have substantial downstream ramifications, and the US Surgeon General and the American Society of Plastic Surgeons (ASPS), among others, have underscored the importance of VTE prevention in surgical patients. Reconstructive surgery, most commonly performed to fix traumatic injuries or defects after cancer excision, often involves borrowing tissue from adjacent or distant areas on the body; reconstructive surgery patients can routinely have surgical injury involving 20% or more of their total body surface area. Injury and resultant inflammation are known to increase metabolism of certain drugs, including those used to prevent VTE after surgery.
Enoxaparin is a blood-thinning medication that decreases likelihood of blood clot formation. Previous research has shown that reconstructive surgery patients who are given enoxaparin after surgery are less likely to develop VTE. However, despite receiving of a standard dose of enoxaparin, many patients still develop this life-threatening complication. The investigators believe that patients metabolize enoxaparin differently based on the degree of surgical injury created during reconstruction, and seek to critically examine enoxaparin metabolism in reconstructive surgery patients. The proposed research will evaluate how enoxaparin affects the blood based on standard, ASPS-recommended dosing after reconstructive surgeries; the investigators will also examine whether the extent of surgical injury alters metabolism as well. Enoxaparin effectiveness will be tracked using anti-Factor Xa (aFXa) levels. If subtherapeutic aFXa levels are observed, the study will also design, implement and test a clinical enoxaparin dose-adjustment protocol to achieve appropriate post-operative aFXa levels. Further research based on these data will examine reduction in VTE risk when aFXa-driven enoxaparin dosing is used.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Fase 1
Kontakter og lokationer
Studiesteder
-
-
Utah
-
Salt Lake City, Utah, Forenede Stater, 84132
- University of Utah Hospitals
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion criteria:
- Adult patients having plastic and reconstructive surgery who are placed on twice daily enoxaparin prophylaxis after surgery.
Exclusion criteria:
- Contraindication to use of enoxaparin.
- Intracranial bleeding/stroke, hematoma or bleeding disorder.
- Known heparin-induced thrombocytopenia
- Creatinine clearance ≤30mL/min
- Serum creatinine >1.6mg/dL
- Epidural anesthesia.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Aktiv komparator: Enoxaparin prophylaxis
All enrolled patients will receive twice daily enoxaparin prophylaxis.
Patients with identified out of range peak anti-Xa levels will receive real time dose adjustment and will be considered as the experimental arm.
|
Patients will have peak and trough steady state anti-Xa levels drawn.
For patients with out of range peak levels, real time enoxaparin dose adjustment using a clinical protocol will be performed.
Repeat steady state levels will be checked.
Andre navne:
|
Eksperimentel: Real time dose adjustment
Patients with identified out of range peak anti-Xa levels will receive real time enoxaparin dose adjustment
|
Patients will have peak and trough steady state anti-Xa levels drawn.
For patients with out of range peak levels, real time enoxaparin dose adjustment using a clinical protocol will be performed.
Repeat steady state levels will be checked.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Number of patients with a 90-day VTE (either a 90-day DVT or 90-day PE)
Tidsramme: 90 days
|
Outcome measure number one will be deep venous thrombosis or pulmonary embolus confirmed with imaging within 90 days of the initial surgery.
|
90 days
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Number of patients with a 90-day re-operative hematoma
Tidsramme: 90 days
|
Outcome number two will be bleeding (hematoma) requiring return to the operating room within 90 days of the initial operation.
|
90 days
|
Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Christopher Pannucci, MD MS, University of Utah
Publikationer og nyttige links
Generelle publikationer
- Pannucci CJ, Fleming KI, Agarwal J, Rockwell WB, Prazak AM, Momeni A. The Impact of Once- versus Twice-Daily Enoxaparin Prophylaxis on Risk for Venous Thromboembolism and Clinically Relevant Bleeding. Plast Reconstr Surg. 2018 Jul;142(1):239-249. doi: 10.1097/PRS.0000000000004517.
- Pannucci CJ, Fleming KI, Momeni A, Prazak AM, Agarwal J, Rockwell WB. Twice-Daily Enoxaparin among Plastic Surgery Inpatients: An Examination of Pharmacodynamics, 90-Day Venous Thromboembolism, and 90-Day Bleeding. Plast Reconstr Surg. 2018 Jun;141(6):1580-1590. doi: 10.1097/PRS.0000000000004379.
- Pannucci CJ, Fleming KI. Comparison of face-to-face interaction and the electronic medical record for venous thromboembolism risk stratification using the 2005 Caprini score. J Vasc Surg Venous Lymphat Disord. 2018 May;6(3):304-311. doi: 10.1016/j.jvsv.2017.10.016. Epub 2018 Feb 13.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Hjerte-kar-sygdomme
- Karsygdomme
- Luftvejssygdomme
- Lungesygdomme
- Embolisme og trombose
- Embolisme
- Trombose
- Venøs trombose
- Tromboemboli
- Venøs tromboembolisme
- Lungeemboli
- Molekylære mekanismer for farmakologisk virkning
- Fibrinolytiske midler
- Fibrinmodulerende midler
- Antikoagulanter
- Enoxaparin
- Enoxaparinnatrium
Andre undersøgelses-id-numre
- 86052
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
IPD-delingstidsramme
IPD-delingsadgangskriterier
IPD-deling Understøttende informationstype
- Statistisk analyseplan (SAP)
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
produkt fremstillet i og eksporteret fra U.S.A.
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .