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Total Hip ArthroplastyNCT03157401

Two Different Administration Methods of Tranexamic Acid on Perioperative Blood Loss During Total Hip Arthroplasty

An observational study of Total Hip Arthroplasty, run by Tengzhou Central People's Hospital.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

To compare the two administration methods of tranexamic acid for patients undergoing the first unilateral THA, to explore the effects of tranexamic acid on perioperative blood loss from the aspects of dominant blood loss, hidden blood loss, blood transfusion rate, mean blood transfusion volume and safety so as to… Read more about this study

Who is it for?
Any age
Conditions the study is for
Total Hip Arthroplasty
What is being tested?
intravenous infusion group and intra-articular injection group
Type of treatment
Injection or infusion
How many people
90 participants
Where
No sites listed yet
Study dates
Apr 2015to Dec 2017
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: To recruit 90 patients undergoing the first unilateral THA at the Tengzhou Central People's Hospital from July 2015 to November 2016. The patients were equally and randomly assigned to three groups.

Who may be able to join

  • Femoral head necrosis or femoral neck fracture patients undergoing the first unilateral THA
  • Bilateral hips with indications for THA in patients with femoral head necrosis, but after arthroplasty on one side, the arthroplasty on the other side will be conducted when choosing a good time and physical condition allows.
  • Average age: 62.52 years
  • Sex ratio of males to females: 11:19
  • Signed informed consent

Who cannot join

  • Coagulation disorders and anemia
  • History of infection on the affected extremity
  • History of vascular embolization and long-term oral anticoagulant drugs
  • Contraindications for tranexamic acid or anticoagulant drugs

About this study

Official title: Effects of Two Different Administration Methods of Tranexamic Acid on Perioperative Blood Loss During Total Hip Arthroplasty: a Prospective, Open-label, Randomized, Controlled Clinical Trial

To compare the two administration methods of tranexamic acid for patients undergoing the first unilateral THA, to explore the effects of tranexamic acid on perioperative blood loss from the aspects of dominant blood loss, hidden blood loss, blood transfusion rate, mean blood transfusion volume and safety so as to further clarify what kind of medication is more effective.

Read the detailed description

Background Total hip arthroplasty (THA) is extensively used in various hip diseases. Abundant blood supply at surgical area of bone tissue, intraoperative extensive cleaning, acetabular formation, femoral expansion, and medullary cavity and bone wound bleeding, will lead to extensive intraoperative and postoperative blood loss. The blood transfusion rate is high, which affects patients' rehabilitation. Previous studies have shown that 16%-69% patients required blood transfusion after first THA, which greatly affected patient's rehabilitation, and increased the risk of transfusion-related infection, hemolysis, immunosuppression, acute lung injury, and death. How to reduce perioperative blood loss in total hip arthroplasty has become a hot spot for joint surgeons.

Tranexamic acid as a synthetic antifibrinolytic drug is a synthetic analog of the amino acid lysine. Its mechanisms of action are the competitive inhibition of fibrinolytic zymogens, and noncompetitive inhibition of fibrinolytic enzymes. Tranexamic acid strongly inhibits plasmin-induced fibrin decomposition, reduces fibrinolytic system activity, to achieve local hemostasis and reduce bleeding (Appendix 1). However, the route of administration of tranexamic acid is diverse, and the best way to administer is not clear. A large number of studies have confirmed that during total knee arthroplasty and THA, intravenous application of tranexamic acid can significantly reduce postoperative blood loss, blood transfusion volume and blood transfusion rate. Intra-articular application of tranexamic acid can reduce the drainage volume of drainage tube, total blood loss, blood transfusion volume and blood transfusion rate after joint arthroplasty. Moreover, hemoglobin levels remarkably increase after surgery. More and more studies and meta-analysis have verified that tranexamic acid has a "target effect". Reasonable use of tranexamic acid does not increase the risk of deep venous thrombosis or pulmonary embolism after hip and knee arthroplasties. Simultaneously, tranexamic acid has a good potency ratio.

Adverse events

  1. To record adverse events during follow up, including incision pain, infection, hip pain, peripheral nerve injury, pulmonary embolism, lower extremity hematoma, deep vein thrombosis, and fixator falling off.
  2. If severe adverse events occur, investigators would report details, including the date of occurrence and measures taken to treat the adverse events, to the principle investigator and the institutional review board within 24 hours.

Data collection, management, analysis, open access

  1. Data collection: Case report forms were collected and processed using Epidata software (Epidata Association, Odense, Denmark). These data would be recorded electronically.
  2. Data management: Tengzhou Central People's Hospital, China would preserve all of the data regarding this trial. Only the project manager has the right to query the database file. This arrangement will not be altered.
  3. Data analysis: A professional statistician would statistically analyze the electronic database and create an outcome analysis report. An independent data monitoring committee would supervise and manage the trial data.
  4. Data open access: Anonymized trial data will be published at www.figshare.com.

Statistical analysis

  1. Statistical analysis would be performed using SPSS 19.0 software (IBM, Armonk, NY, USA) and would follow the intention-to-treat principle.
  2. Normally distributed measurement data would be expressed as means ± standard deviation and minimums and maximums. Non-normally distributed measurement data would be expressed as the lower quartile (q1) and median and upper quartiles (q3). Count data would be expressed as a percentage.
  3. The differences in hidden blood loss, dominant blood loss and mean blood loss in each group at intraoperative, postoperative 1 and 3 days would be compared using two-factor analysis of variance with repeated measures. Paired comparison of intergroup data would be conducted using least significant difference. Blood transfusion rate and incidence of adverse reactions in each group were compared using Pearson X2 test.
  4. The significance level would be α = 0.05.
Being tested
intravenous infusion group, intra-articular injection group, control group

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • intravenous infusion groupDrug

    Also called tranexamic acid intravenous infusion group

    In the tranexamic acid intravenous infusion group (n = 30), 15 mg/kg tranexamic acid diluted in 100 mL physiological saline was intravenously infused at the beginning of the surgery. After suturing deep fascia, 20 mL of physiological saline was intra-articularly injected.

  • intra-articular injection groupDrug

    Also called tranexamic acid intra-articular injection group

    In the tranexamic acid intra-articular injection group (n = 30), 100 mL of physiological saline was intravenously infused at the beginning of the surgery. After suturing deep fascia, the mixture of 1.5 g tranexamic acid and 20 mL physiological saline was intra-articularly injected.

  • control groupDrug

    Also called physiological saline group

    In the control group (n = 30), 100 mL of physiological saline was intravenously infused at the beginning of the surgery. After suturing deep fascia, 20 mL of physiological saline was intra-articularly injected.

Study groups in NCT03157401
Study groupRoleWhat they receive
intravenous infusion groupIn the tranexamic acid intravenous infusion group (n = 30), 15 mg/kg tranexamic acid diluted in 100 mL physiological saline was intravenously infused at the beginning of the surgery. After suturing deep fascia, 20 mL of physiological saline was intra-articularly injected.
Receives: Drug: intravenous infusion group
intra-articular injection groupIn the tranexamic acid intra-articular injection group (n = 30), 100 mL of physiological saline was intravenously infused at the beginning of the surgery. After suturing deep fascia, the mixture of 1.5 g tranexamic acid and 20 mL physiological saline was intra-articularly injected.
Receives: Drug: intra-articular injection group
control groupIn the control group (n = 30), 100 mL of physiological saline was intravenously infused at the beginning of the surgery. After suturing deep fascia, 20 mL of physiological saline was intra-articularly injected.
Receives: Drug: control group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. hidden blood loss

    Hidden blood loss was calculated by the circulation volume proposed by Gross, i.e., total erythrocyte loss is equal to preoperative total blood volume × (hematocrit preoperatively - hematocrit postoperatively 3 days).

    Measured: at postoperative 1 and 3 days

Secondary outcomes (1)
  1. Dominant blood loss

    Dominant blood loss includes intraoperative blood loss and postoperative blood loss. Intraoperative blood loss was quantified by measuring irrigation fluid and weight measurement of surgical sponges. Postoperative blood loss was quantified by measuring wound drainage volume and weight measurement of surgical sponges.

    Measured: at intraoperative, postoperative 1 and 3 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 May 2017
  2. Study startApr 2015
  3. Primary completionNov 2016
  4. Study completionDec 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Prospective
Enrolment
90 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03157401
Sponsor's protocol ID
TengzhouCPH_01
Status last verified
Feb 2018
First submitted
15 May 2017
Last updated
9 Feb 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Total Hip Arthroplasty, run by Tengzhou Central People's Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Feb 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

hidden blood loss (time frame: at postoperative 1 and 3 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Feb 2018.

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