Clinical trial NCT03109652: Serial Use of Intravenous and Oral Tranexamic Acid in Primary Total Knee Arthroplasty Patients
Official title: Serial Use of Intravenous and Oral Tranexamic Acid in Primary Total Knee Arthroplasty Patients: A Randomized Controlled Study
Study type: INTERVENTIONAL
Overall status: UNKNOWN
Phase: PHASE4
Conditions: Knee Osteoarthritis
Keywords: total knee replacement arthroplasty
total knee arthroplasty
tranexamic acid
oral tranexamic acid
transfusion
blood loss
Lead sponsor: Seoul National University Hospital
Sponsor class: OTHER
First posted: 2017-04-12
Enrollment: 144
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The usefulness of tranexamic acid(TXA) to reduce blood loss and transfusion in total knee replacement arthroplasty(TKRA) has been demonstrated. However, the optimal does, duration of treatment and route of administration of TXA to reduce blood loss while minimizing adverse effects remain uncertain. Recently, the serial use of perioperative IV and post-operative oral TXA has been shown to significantly reduce transfusion rate without increasing thromboembolic complications compared to placebo. The aim of this study is to 1) determine the beneficial effect and safety of the serial treatment of IV and oral TXA over IV use alone and 2) assess the sufficient length of postoperative use of oral TXA in TKRA patients.

Detailed description: It has been demonstrated that tranexamic acid (TXA) reduces the peri-operative blood loss as well as the need for transfusion in total knee replacement arthroplasty(TKRA). The anti-fibrinolytic effects of TXA have been shown to mainly present in the wound that, in previous studies, the use of TXA decreased the blood loss without increasing the risk of thromboembolic complications. Nevertheless, the optimal dose, duration of treatment and route of administration of TXA to reduce blood loss while minimizing adverse effects remain uncertain.

To use TXA as a pharmacologic alternative to transfusion, optimal regimen should be elucidated. Various studies have reported the effect of perioperative use of intravenous or topical TXA. Meta-analyses concluded that combined use of intravenous and topical TXA is more effective in reducing the blood loss and transfusion rate without increasing the risk of deep vein thrombosis or pulmonary embolism compared to the use of either intravenous TXA or topical TXA alone. Both intravenous and topical administration was conducted pre or intraoperatively or within 6 hours post-operatively mainly due to conceivable risk of thromboembolic event when TXA is used continuously after surgery. However, regarding the fact that systemic activation of fibrinolysis starts post-operatively in TKRA using tourniquets and lasts over 18 hours, the continuous use of TXA after surgery might have additional benefit over the single day use. Moreover, the serial use of post-operative oral TXA for 5 days after perioperative IV TXA use has been shown to significantly reduce transfusion rate without increasing thromboembolic complications compared to placebo.

Therefore, in this study, the investigators aimed to 1) investigate the effect of serial use of perioperative IV and post-operative oral TXA in reducing the blood loss and transfusion risk compared to single day perioperative use of IV TXA and 2) assess the sufficient length of postoperative use of oral TXA in TKRA patients.

Eligibility criteria: Inclusion Criteria:

* Candidate for total knee replacement arthroplasty due to osteoarthritis of the knee.

Exclusion Criteria:

* Known allergic reaction to tranexamic acid
* Secondary arthritis (ex. Rheumatic arthritis, traumatic arthritis, septic arthritis)
* History of thromboembolic event including deep vein thrombosis, pulmonary embolism, cerebral infarction, transient ischemic attack, myocardial infarction, angina
* Premenopausal female
* Known congenital or acquired coagulopathy
* Currently in treatment with Adenosine disphosphate receptor inhibitors, Vitamin K antagonist, Factor Xa inhibitor, Direct thrombin inhibitor or Heparin
* Aspirin administration within 5 days before operation
* Preoperative Prothrombin time(PT) international normalized ratio(INR) \> 1.4
* Severe systemic comorbidities of American Society of Anesthesiology (ASA) grade 4 including heart failure, renal failure, hepatic failure, pulmonary disease and cancer
* Do not agree to participate in the study

Primary outcomes:
measure: Change from preoperative hemoglobin at day 2
timeFrame: Preop. day 1 to postop. day 2
measure: Change from preoperative hemoglobin at day 6
timeFrame: Preop. day 1 to postop. day 6
Secondary outcomes:
measure: Transfusion rate and amount
timeFrame: Postoperative day 0 to day 6
measure: Complications
timeFrame: up to 6 week after operation
measure: Calculated Blood loss
timeFrame: Postop. day 6
Other outcomes:
Locations:
city: Seoul
country: Korea, Republic of
facility: Seoul National University Boramae Medical Center
state: Dongjak Gu
Study officials:
affiliation: SMG-SNU Boramae Medical Center
name: Seung-Baik Kang, MD, PhD
role: PRINCIPAL_INVESTIGATOR
References:
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