Extended Postoperative Oral Tranexamic Acid in Knee Replacement

March 4, 2024 updated by: Marcus C. Ford, Campbell Clinic

Extended Postoperative Tranexamic Acid Use in Primary Total Knee Arthroplasty: A Prospective, Randomized Controlled Trial

A comparison of outcomes between use of oral tranexamic acid as compared to oral placebo in the first days after total knee replacement will be made to determine impact on clinical indications and patient reported outcomes.

Study Overview

Status

Active, not recruiting

Detailed Description

Significant blood loss occurs during total knee arthroplasty (TKA) which can lead to adverse outcomes including need for blood transfusion as well as increased local tissue swelling and ecchymosis which can inhibit post-operative recovery. Tranexamic acid (TXA), an inhibitor of fibrinolysis, has been shown to be a safe and effective drug for reducing blood loss during and after TKA. The use of TXA intraoperatively has been associated with higher postoperative hemoglobin levels and a reduction in postoperative blood transfusion rates. Administration of TXA in TKA has also been associated with improved clinical outcome measures including decreased rate of periprosthetic joint infection, decreased length of stay, and increased postoperative range of motion and early ambulation distances. However, there remains a wide variance in the route of administration, dosage, and timing of TXA use among treatment protocols in TKA. Previous studies have evaluated outcomes with the addition of post-operative TXA dosing to standard pre-operative and intra-operative intravenous (IV) doses. This study will investigate patient outcomes following a standardized post-operative oral TXA protocol as compared to oral placebo for three doses over day of surgery, postop day one and postop day two after TKA.

Following written consent documentation, Subjects will be randomized and blinded to randomization assignment until completion of study to either the oral TXA group or oral placebo group. The study medication will be distributed with the Subject's name with instructions for use in the post-anesthesia unit (PACU). The first dose will be administered in PACU with subsequent doses to be taken at home on postop day one and postop day two. TKA will be completed in an ambulatory surgery center with discharge same day of surgery to home.

Outcome measures include: Hemoglobin, visual analog score, KOOS Jr (Knee injury and osteoarthritis outcome score), range of motion, and incidence of treatment-emergent adverse event at postoperative (POD) day 3, POD week 2, POD week 6, and POD week 12. KOOS Jr. will be collected at one year post-op.

Study Type

Interventional

Enrollment (Actual)

46

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Tennessee
      • Germantown, Tennessee, United States, 38138
        • Campbell Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Primary total knee replacement in ambulatory setting
  • Willing to participate
  • Physical therapy on site at Campbell Clinic Wolf River
  • Fluent in oral and written English

Exclusion Criteria:

  • Unwilling to participate
  • Revision total knee replacement
  • Preoperative use of anticoagulants other than 81 mg aspirin
  • Previous history of thromboembolic event
  • Previous history of cancer other than non-melanoma skin cancers

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Oral TXA
1,950 mg oral tranexmic acid (three capsules of 650 mg) administered in post-anesthesia care, postop day one and postop day two. Compounded by registered pharmacist and labeled with subject name and instructions for use.
1950 mg tranexamic acid (three capsules) given in post-anesthesia room and three capsules for postop day one and three capsules for postop day two
Placebo Comparator: Oral placebo
Three capsules of cellulose administered in post-anesthesia care, postop day one and postop day two. Compounded by registered pharmacist and labeled with subject name and instructions for use.
Three capsules of cellulose given in post-anesthesia room and three capsules for postop cay one and three capsules for postop day two

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Hemoglobin level
Time Frame: preoperative
Hemoglobin enables red cells to transport oxygen and carbon dioxide in the blood and is measured in grams per deciliter with normal ranges of 12.0 to 17.5
preoperative
Hemoglobin level
Time Frame: postoperative hour 3
Hemoglobin enables red cells to transport oxygen and carbon dioxide in the blood and is measured in grams per deciliter with normal ranges of 12.0 to 17.5
postoperative hour 3
Hemoglobin level
Time Frame: postoperative day 3
Hemoglobin enables red cells to transport oxygen and carbon dioxide in the blood and is measured in grams per deciliter with normal ranges of 12.0 to 17.5
postoperative day 3
Hemoglobin level
Time Frame: postoperative week 2
Hemoglobin enables red cells to transport oxygen and carbon dioxide in the blood and is measured in grams per deciliter with normal ranges of 12.0 to 17.5
postoperative week 2

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Visual Analog Score
Time Frame: preoperative
Patient reported pain score from 0 to 10 where 0 is no pain and 10 is the most pain
preoperative
Visual Analog Score
Time Frame: postoperative hour 3
Patient reported pain score from 0 to 10 where 0 is no pain and 10 is the most pain
postoperative hour 3
Visual Analog Score
Time Frame: postoperative week 2
Patient reported pain score from 0 to 10 where 0 is no pain and 10 is the most pain
postoperative week 2
Visual Analog Score
Time Frame: postoperative week 6
Patient reported pain score from 0 to 10 where 0 is no pain and 10 is the most pain
postoperative week 6
Visual Analog Score
Time Frame: postoperative week 12
Patient reported pain score from 0 to 10 where 0 is no pain and 10 is the most pain
postoperative week 12
KOOS Jr Score
Time Frame: preoperative
Patient reported outcome of how the knee feels from 0 to one 100 where 0 represents extreme problems and 100 represents no problems
preoperative
KOOS Jr Score
Time Frame: postoperative day 3
Patient reported outcome of how the knee feels from 0 to one 100 where 0 represents extreme problems and 100 represents no problems
postoperative day 3
KOOS Jr Score
Time Frame: postoperative week 2
Patient reported outcome of how the knee feels from 0 to one 100 where 0 represents extreme problems and 100 represents no problems
postoperative week 2
KOOS Jr Score
Time Frame: postoperative week 6
Patient reported outcome of how the knee feels from 0 to one 100 where 0 represents extreme problems and 100 represents no problems
postoperative week 6
KOOS Jr Score
Time Frame: postoperative week 12
Patient reported outcome of how the knee feels from 0 to one 100 where 0 represents extreme problems and 100 represents no problems
postoperative week 12
range of motion of knee
Time Frame: preoperative
clinical measurement of passive, pain-free range of motion of knee in degrees from 0 to 180 from maximum extension to maximum flexion
preoperative
range of motion of knee
Time Frame: postoperative day 3
clinical measurement of passive, pain-free range of motion of knee in degrees from 0 to 180 from maximum extension to maximum flexion
postoperative day 3
range of motion of knee
Time Frame: postoperative week 2
clinical measurement of passive, pain-free range of motion of knee in degrees from 0 to 180 from maximum extension to maximum flexion
postoperative week 2
range of motion of knee
Time Frame: postoperative week 6
clinical measurement of passive, pain-free range of motion of knee in degrees from 0 to 180 from maximum extension to maximum flexion
postoperative week 6
range of motion of knee
Time Frame: postoperative week 12
clinical measurement of passive, pain-free range of motion of knee in degrees from 0 to 180 from maximum extension to maximum flexion
postoperative week 12
KOOS Jr Score
Time Frame: postoperative one year
Patient reported outcome of how the knee feels from 0 to one 100 where 0 represents extreme problems and 100 represents no problems
postoperative one year

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of treatment-emergent adverse event
Time Frame: postoperative day 3
monitoring for safety events
postoperative day 3
Incidence of treatment-emergent adverse event
Time Frame: postoperative week 2
monitoring for safety events
postoperative week 2
Incidence of treatment-emergent adverse event
Time Frame: postoperative week 6
monitoring for safety events
postoperative week 6
Incidence of treatment-emergent adverse event
Time Frame: postoperative week 12
monitoring for safety events
postoperative week 12

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Marcus C Ford, MD, Campbell Clinic

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 7, 2021

Primary Completion (Actual)

December 31, 2023

Study Completion (Estimated)

June 1, 2024

Study Registration Dates

First Submitted

October 11, 2021

First Submitted That Met QC Criteria

October 26, 2021

First Posted (Actual)

October 29, 2021

Study Record Updates

Last Update Posted (Estimated)

March 6, 2024

Last Update Submitted That Met QC Criteria

March 4, 2024

Last Verified

March 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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