Blood Loss, SurgicalPhase 2/3NCT04430777
Use of Tranexamic Acid in Liposculpture
A Phase 2/3 study testing Tranexamic acid in people with Blood Loss, Surgical, run by Total Definer Research Group at 3 sites in 2 countries.
Trial summary
Blood loss during a surgical procedure is inevitable, its reduction is a key factor for surgical success. Also, to avoid progress to severe complications like hemodynamic decompensation, cardiac arrest or the need to blood transfusions. Read more about this study
- Who is it for?
- Ages 20 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Blood Loss, Surgical
- What is being tested?
- Tranexamic acid
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 141 participants
- Where
- 3 sitesin 2 countries
- Study dates
- 17 Jan 2019to 22 Feb 2020
- Phase
- Phase 2/3
- 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 20 to 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Patients that underwent liposculpture as unique procedure, surgical time between 2 and 5 hours, age between 20 and 45 years old and BMI between 20 and 30 m2/kg.
Who cannot join
- Patients that were operated of liposculpture and any additional procedure (Mammoplasty, tummy tuck, etc.), patients with history of thromboembolic disease or in Treatment with aspirin within 14 days before surgery or anticoagulants within 5 days prior to surgery, patients with history of epilepsy, patients with allergy to tranexamic acid, comorbidity grade III or IV according to ASA (American society of Anesthesiologists) and patients with prothrombin time (PT) and/or activated partial thromboplastin time (aPTT) >1.5 times the baseline.
Trial locations and contacts
3 sites in 2 countries.
3 sites in 2 countries
Mexico2 sites
Innovare hospital
Jalisco
Centro Medico de las Americas clinic
Mérida
About this study
Official title: Use of Tranexamic Acid in Liposculpture: A Double-blind, Multicenter, Randomized Trial
Blood loss during a surgical procedure is inevitable, its reduction is a key factor for surgical success. Also, to avoid progress to severe complications like hemodynamic decompensation, cardiac arrest or the need to blood transfusions. According to the Center for Disease Control (CDC), there is a usage of more than 17 million transfused blood products units per year. Blood transfusion is a convenient technique for reposition of blood during major bleed, but it involves several probable complications like anaphylaxis, bloodborne infections and others. Consequently, meticulous hemostasis during surgery is crucial to diminish blood loss.
Hemostatic agents play a pivotal role during surgical time. Amongst them topical, energy-based and systemic agents are the vast majority. Tranexamic acid (TXA) is a lysine synthetic derivate that inhibits fibrinolysis by blocking the 5 lysine-binding sites to plasminogen. It has been used in clinical practice since 1962 and become very popular after 2010 when the CRASH-2 study showed a decreased risk of death in trauma patients.
Tranexamic acid use is widely extended among diverse surgical fields: orthopedics, cardiac surgery and obstetrics. In plastic surgery it uses is limited mainly to craniofacial surgery as a local agent. The aim of this trial is to show the efficacy of tranexamic acid as hemostatic agent in liposuction and to compare its efficacy among different administration routes.
Read the detailed description
In 3 plastic surgery centers, the investigators randomized patients in a double-blind, randomized, controlled trial comparing the clinical outcomes of different administration routes of TXA, intravenous versus subcutaneous versus placebo between January 2019 to February 2020. The study was approved by the Ethics committee at the central coordinating center and at each of the participating sites. The centers of the study were, Dhara clinic, Bogota, Colombia, Centro Medico de las Americas clinic, in Mérida, Mexico and Innovare hospital in Jalisco, Mexico. Once a month, the investigators performed only meetings between the researcher coordinator and delegates from each of the centers to audit the data collection and information registration.
During the preoperative consultation, the study interventions were explained clearly to each participants. Participants were given adequate time to ponder the information, had any questions answered and gave their free and voluntary consent. A total of 141 participants were recollected. The primary outcome was the difference regarding to hemoglobin loss points between groups. All patients had hemoglobin and hematocrit tests taken prior to surgery, 24 hours postoperatively and 5 days postoperatively. The investigators determined the hemoglobin loss points in each group by deduct the postoperative hemoglobin at day one to the preoperative hemoglobin (For hemoglobin loss at day 1) and the postoperative hemoglobin at day five to the preoperative hemoglobin (For hemoglobin loss at day 5). As a secondary outcome, the investigators performed a subgroup analysis to determine the difference in hematological parameters (hemoglobin and hematocrit) between the groups.
Sample size and Statistical Analysis Sample size was calculated using the online app from sealed envelope where 96 patients were required to have a 90% of chance of detecting, as significant at the 5% level, a difference between the mean postoperative Hb value from 10.5 g/dl in the control group to 11.5 g/dl in the experimental group and an estimated standard deviation (SD) of 1.5 g/dl. Since, the investigators planned two experimental approaches: Subcutaneous (SC) TA and Intravenous (IV) TA; 141 patients were randomized into 3 groups: 1. IV-TA group (n=47), 2. SC-TA group (n=47) and NS group. Demographic and clinical characteristics were described, hematological parameters were analyzed per group before surgery, at the immediate post-operative period, and at the fifth post-operative day. The descriptive analysis was made through means and medians according to the distribution of variables.
For categorical variables, counts and percentages were used. The quantitative variables with parametric distribution were compared using ANOVA, and for variables with non-parametric distribution using Kruskal-Wallis test, while the frequencies of the qualitative variables were compared using Chi2 test. We used a boxplot to illustrate the differences between the means of the hemoglobin by group. Bilateral hypotheses were formulated at two tails with significance level less than 0.05. The data were collected in Microsoft excel and the statistical analysis were performed in the statistical program STATA version 15.0.
- Conditions
- Blood Loss, Surgical
- Being tested
- Tranexamic acid
- Keywords
- Tranexamic Acid, Blood Loss, Liposculpture
- Medical subject headings
- Blood Loss, Surgical, Hemorrhage
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tranexamic acidDrug
Administration of tranexamic acid 1 gr either intravenously or subcutaneously
| Study group | Role | What they receive |
|---|---|---|
| Placebo group | Placebo comparator | No use of tranexamic acid. Subcutaneous infiltration of normal saline solution plus 1 mg of epinephrine as required for the procedure. Receives: Drug: Tranexamic acid |
| Intravenous group | Experimental | A single dose of 1 gr of tranexamic acid (10 ml) IV, thirty minutes previous to the initiation of the surgery. Subcutaneous infiltration of normal saline solution plus 1 mg of epinephrine as required for the procedure. Receives: Drug: Tranexamic acid |
| Subcutaneous group | Experimental | A single dose of 1 gr of tranexamic acid (10 ml) in the total of the infiltration mixture, as follow:
4 liters of infiltration contents 2.5 ml of tranexamic acid plus 1 mg epinephrine 5 liters of infiltration contents 2 ml of tranexamic acid plus 1 mg epinephrine.
6 liters of infiltration contents 1.6 ml of tranexamic acid plus 1 mg epinephrine. Receives: Drug: Tranexamic acid |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in hemoglobin
All patients had hemoglobin tests taken prior to surgery, 24 hours postoperatively and 5 days postoperatively. We determine the hemoglobin loss points in each group by deduct the postoperative hemoglobin at day one to the preoperative hemoglobin (For hemoglobin loss at day 1) and the postoperative hemoglobin at day five to the preoperative hemoglobin (For hemoglobin loss at day 5).
Measured: Change from Baseline Hemoglobin at first posoperative and fifth posoperative day
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Jun 2020
- Study start17 Jan 2019
- Primary completion22 Feb 2020
- Study completion22 Feb 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Blood Loss, SurgicalStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2/3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Patients were randomly assigned to three groups: Placebo group, intravenous group and subcutaneous group according to the administration route of tranexamic acid
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 141 participants (actual)
Sponsor and investigators
- Lead sponsor
- Total Definer Research Group
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alfredo Hoyos, Total Definer Research Group
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04430777
- Sponsor's protocol ID
- 1
- Status last verified
- Jun 2020
- First submitted
- 9 Jun 2020
- Last updated
- 12 Jun 2020
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ker K, Prieto-Merino D, Roberts I. Systematic review, meta-analysis and meta-regression of the effect of tranexamic acid on surgical blood loss. Br J Surg. 2013 Sep;100(10):1271-9. doi: 10.1002/bjs.9193. Epub 2013 Jul 9.
PubMed 23839785Rohrich RJ, Cho MJ. The Role of Tranexamic Acid in Plastic Surgery: Review and Technical Considerations. Plast Reconstr Surg. 2018 Feb;141(2):507-515. doi: 10.1097/PRS.0000000000003926.
PubMed 28938364Taam J, Yang QJ, Pang KS, Karanicolas P, Choi S, Wasowicz M, Jerath A. Current Evidence and Future Directions of Tranexamic Acid Use, Efficacy, and Dosing for Major Surgical Procedures. J Cardiothorac Vasc Anesth. 2020 Mar;34(3):782-790. doi: 10.1053/j.jvca.2019.06.042. Epub 2019 Jul 4.
PubMed 31455576
Study at a glance
From the registry record, last updated by the sponsor on 12 Jun 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Use of Tranexamic Acid in Liposculpture: A Double-blind, Multicenter, Randomized Trial
- ClinicalTrials.gov ID
- NCT04430777
- Acronym / sponsor ID
- 1
- Conditions
- Blood Loss, Surgical
- Keywords
- Tranexamic Acid, Blood Loss, Liposculpture
- Phase
- Phase 2/3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 141 participants (actual)
- Lead sponsor
- Total Definer Research GroupUniversity, hospital or other
- Study start
- 17 Jan 2019 (actual)
- Primary completion
- 22 Feb 2020 (actual)
- Study completion
- 22 Feb 2020 (actual)
- First posted
- 12 Jun 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Blood loss during a surgical procedure is inevitable, its reduction is a key factor for surgical success. Also, to avoid progress to severe complications like hemodynamic decompensation, cardiac arrest or the need to blood transfusions. According to the Center for Disease Control (CDC), there is a usage of more than 17 million transfused blood products units per year. Blood transfusion is a convenient technique for reposition of blood during major bleed, but it involves several probable complications like anaphylaxis, bloodborne infections and others. Consequently, meticulous hemostasis during surgery is crucial to diminish blood loss.
Hemostatic agents play a pivotal role during surgical time. Amongst them topical, energy-based and systemic agents are the vast majority. Tranexamic acid (TXA) is a lysine synthetic derivate that inhibits fibrinolysis by blocking the 5 lysine-binding sites to plasminogen. It has been used in clinical practice since 1962 and become very popular after 2010 when the CRASH-2 study showed a decreased risk of death in trauma patients.
Tranexamic acid use is widely extended among diverse surgical fields: orthopedics, cardiac surgery and obstetrics. In plastic surgery it uses is limited mainly to craniofacial surgery as a local agent. The aim of this trial is to show the efficacy of tranexamic acid as hemostatic agent in liposuction and to compare its efficacy among different administration routes.
Detailed description
In 3 plastic surgery centers, the investigators randomized patients in a double-blind, randomized, controlled trial comparing the clinical outcomes of different administration routes of TXA, intravenous versus subcutaneous versus placebo between January 2019 to February 2020. The study was approved by the Ethics committee at the central coordinating center and at each of the participating sites. The centers of the study were, Dhara clinic, Bogota, Colombia, Centro Medico de las Americas clinic, in Mérida, Mexico and Innovare hospital in Jalisco, Mexico. Once a month, the investigators performed only meetings between the researcher coordinator and delegates from each of the centers to audit the data collection and information registration.
During the preoperative consultation, the study interventions were explained clearly to each participants. Participants were given adequate time to ponder the information, had any questions answered and gave their free and voluntary consent. A total of 141 participants were recollected. The primary outcome was the difference regarding to hemoglobin loss points between groups. All patients had hemoglobin and hematocrit tests taken prior to surgery, 24 hours postoperatively and 5 days postoperatively. The investigators determined the hemoglobin loss points in each group by deduct the postoperative hemoglobin at day one to the preoperative hemoglobin (For hemoglobin loss at day 1) and the postoperative hemoglobin at day five to the preoperative hemoglobin (For hemoglobin loss at day 5). As a secondary outcome, the investigators performed a subgroup analysis to determine the difference in hematological parameters (hemoglobin and hematocrit) between the groups.
Sample size and Statistical Analysis Sample size was calculated using the online app from sealed envelope where 96 patients were required to have a 90% of chance of detecting, as significant at the 5% level, a difference between the mean postoperative Hb value from 10.5 g/dl in the control group to 11.5 g/dl in the experimental group and an estimated standard deviation (SD) of 1.5 g/dl. Since, the investigators planned two experimental approaches: Subcutaneous (SC) TA and Intravenous (IV) TA; 141 patients were randomized into 3 groups: 1. IV-TA group (n=47), 2. SC-TA group (n=47) and NS group. Demographic and clinical characteristics were described, hematological parameters were analyzed per group before surgery, at the immediate post-operative period, and at the fifth post-operative day. The descriptive analysis was made through means and medians according to the distribution of variables.
For categorical variables, counts and percentages were used. The quantitative variables with parametric distribution were compared using ANOVA, and for variables with non-parametric distribution using Kruskal-Wallis test, while the frequencies of the qualitative variables were compared using Chi2 test. We used a boxplot to illustrate the differences between the means of the hemoglobin by group. Bilateral hypotheses were formulated at two tails with significance level less than 0.05. The data were collected in Microsoft excel and the statistical analysis were performed in the statistical program STATA version 15.0.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
- Model description
- Patients were randomly assigned to three groups: Placebo group, intravenous group and subcutaneous group according to the administration route of tranexamic acid
| Arm | Type | Receives |
|---|---|---|
| Placebo group | Placebo comparator | Drug: Tranexamic acidNo use of tranexamic acid. Subcutaneous infiltration of normal saline solution plus 1 mg of epinephrine as required for the procedure. |
| Intravenous group | Experimental | Drug: Tranexamic acidA single dose of 1 gr of tranexamic acid (10 ml) IV, thirty minutes previous to the initiation of the surgery. Subcutaneous infiltration of normal saline solution plus 1 mg of epinephrine as required for the procedure. |
| Subcutaneous group | Experimental | Drug: Tranexamic acidA single dose of 1 gr of tranexamic acid (10 ml) in the total of the infiltration mixture, as follow: 4 liters of infiltration contents 2.5 ml of tranexamic acid plus 1 mg epinephrine 5 liters of infiltration contents 2 ml of tranexamic acid plus 1 mg epinephrine. 6 liters of infiltration contents 1.6 ml of tranexamic acid plus 1 mg epinephrine. |
Who may qualify
- Ages
- 20 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Patients that underwent liposculpture as unique procedure, surgical time between 2 and 5 hours, age between 20 and 45 years old and BMI between 20 and 30 m2/kg.
Key exclusion criteria (1 listed)
- Patients that were operated of liposculpture and any additional procedure (Mammoplasty, tummy tuck, etc.), patients with history of thromboembolic disease or in Treatment with aspirin within 14 days before surgery or anticoagulants within 5 days prior to surgery, patients with history of epilepsy, patients with allergy to tranexamic acid, comorbidity grade III or IV according to ASA (American society of Anesthesiologists) and patients with prothrombin time (PT) and/or activated partial thromboplastin time (aPTT) >1.5 times the baseline.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Tranexamic acidAdministration of tranexamic acid 1 gr either intravenously or subcutaneously | Drug | Intravenous group, Placebo group, Subcutaneous group |
Primary outcome
Change in hemoglobin
Time frame: Change from Baseline Hemoglobin at first posoperative and fifth posoperative day
All patients had hemoglobin tests taken prior to surgery, 24 hours postoperatively and 5 days postoperatively. We determine the hemoglobin loss points in each group by deduct the postoperative hemoglobin at day one to the preoperative hemoglobin (For hemoglobin loss at day 1) and the postoperative hemoglobin at day five to the preoperative hemoglobin (For hemoglobin loss at day 5).
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Jun 2020.
- Background: PubMed 23839785Ker K, Prieto-Merino D, Roberts I. Systematic review, meta-analysis and meta-regression of the effect of tranexamic acid on surgical blood loss. Br J Surg. 2013 Sep;100(10):1271-9. doi: 10.1002/bjs.9193. Epub 2013 Jul 9.
- Background: PubMed 28938364Rohrich RJ, Cho MJ. The Role of Tranexamic Acid in Plastic Surgery: Review and Technical Considerations. Plast Reconstr Surg. 2018 Feb;141(2):507-515. doi: 10.1097/PRS.0000000000003926.
- Background: PubMed 31455576Taam J, Yang QJ, Pang KS, Karanicolas P, Choi S, Wasowicz M, Jerath A. Current Evidence and Future Directions of Tranexamic Acid Use, Efficacy, and Dosing for Major Surgical Procedures. J Cardiothorac Vasc Anesth. 2020 Mar;34(3):782-790. doi: 10.1053/j.jvca.2019.06.042. Epub 2019 Jul 4.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
3 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2/3 study testing Tranexamic acid in people with Blood Loss, Surgical, run by Total Definer Research Group at 3 sites in 2 countries.
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 1 inclusion and 1 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 12 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in Mexico, Colombia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
Change in hemoglobin (time frame: Change from Baseline Hemoglobin at first posoperative and fifth posoperative day). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04430777, which also lists 3 linked publications.
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 12 Jun 2020.