Cancer of the Bone, Limb Salvage
Conditions
Keywords
Blood Transfusion, Cancer of the bone, Distal femur, Limb Salvage, Malignant Bone Tumor, Placebo, Proximal tibia, Randomized, Tranexamic acid, TXA
Brief summary
This is a randomized double-blind control trial evaluating the use Tranexamic acid (TXA) to decrease blood loss and transfusion requirements in pediatric and young adult cancer patients undergoing a limb salvage procedure that frequently requires perioperative or post-operative transfusions of blood products. Primary Objective * To evaluate the difference in intra-or post-operatively transfused blood volume (mL/kg) for patients undergoing limb salvage procedures of the distal femur or proximal tibia who are randomized to receive perioperative tranexamic acid (TXA) versus placebo. Secondary Objectives * To evaluate changes in platelets and in hemoglobin from pre-op to post-op level for patients randomized to receive perioperative TXA versus placebo. * To evaluate differences in post-operative daily surgical drain output for patients randomized to receive perioperative TXA versus placebo. * To evaluate changes in estimated blood loss (EBL) for patients randomized to receive perioperative TXA versus placebo. * To evaluate the association between the intra-or post-operatively transfused blood volume and estimated blood loss (EBL) for patients randomized to receive perioperative TXA and placebo, respectively. Exploratory Objectives * To evaluate differences in functional outcomes post-operatively for patients randomized to receive perioperative TXA versus placebo. * To explore if significant correlations are observed between parameters reported with rotational thromboelastometry (ROTEM®) and EBL and transfusion requirements in pediatric and young adult patients undergoing limb salvage procedure who are randomized to perioperative TXA versus placebo. * To evaluate differences in the prevalence and management of wound complications such as superficial or periprosthetic infections, wound dehiscence, contact dermatitis, post- operative hematomas, or any other clinically significant wound complication between patients randomized to receive perioperative TXA versus placebo.
Detailed description
Eligible participants undergoing limb salvage procedures will be randomized to receive either tranexamic acid (TXA) or placebo peri-operatively. The initial dose of tranexamic acid/placebo will be given at the initiation of surgical preparation. The second dose will be given 6 hours after the first dose (either intraoperatively or post-operatively). All doses will be given intravenously. Doses will be double blinded and randomized for each surgical procedure.
Interventions
DRUGTranexamic Acid
Given IV
OTHER0.9% sodium chloride
Given IV
Sponsors
St. Jude Children's Research Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
TRIPLE (Subject, Caregiver, Investigator)
Masking description
To allow for the study team and participants to remain blinded to the treatment assignment, the study drug will be labeled as Tranexamic Acid/Placebo (TXAKIDS) followed by applicable dose and administration instructions.
Eligibility
Sex/Gender
ALL
Age
No minimum to 24 Years
Healthy volunteers
No
Inclusion criteria
* Participant undergoing limb salvage procedure of malignant bone tumor of the distal femur or proximal tibia, which typically requires blood transfusions. * Patient under the age of 25 * Adequate bone marrow function defined as: * Upward trending peripheral absolute neutrophil count (ANC) * Platelet count ≥ 100,000/mm\^3 (transfusion independent defined as no platelets required for 4 days) * Hemoglobin ≥ 8.0 g/dL * No RBC transfusion within 24 hours * Adequate renal function defined as: * Creatinine clearance or radioisotope GFR ≥ 70 mL/min/1.73m\^2 OR * Maximum serum creatinine based on age/gender as follows: Age 1 day to \< 1 years: maximum serum creatinine (mg/dL) 0.6 for males and 0.5 for females; Age 1 to \< 2 years: maximum serum creatinine (mg/dL) 0.6 for males and 0.6 for females; Age 2 to \< 6 years: maximum serum creatinine (mg/dL) 0.8 for males and 0.8 for females; Age 6 to \< 10 years: maximum serum creatinine (mg/dL) 1.0 for males and 1.0 for females; Age 10 to \< 13 years: maximum serum creatinine (mg/dL) 1.2 for males and 1.2 for females; Age 13 to \< 16 years: maximum serum creatinine (mg/dL) 1.5 for males and 1.4 for females; Age ≥ 16 years: maximum serum creatinine (mg/dL) 1.7 for males and 1.4 for females * Adequate liver function defined as: * Total bilirubin ≤ 1.5x the institutional upper limit of normal (IULN) for age * ALT (SGPT) and AST (SGOT) ≤ 2.5x IULN for age (or \<5x IULN for patients with documented disease involving the liver or 10x IULN for patients receiving HDMTX) * Serum albumin \> 2 g/dL * Adequate coagulation function as defined by International Normalized Ratio (INR) ≤ 1.5 * Female participants of child-bearing potential (\>10 years old) must have a negative serum or urine pregnancy test within 72 hours of sedation
Exclusion criteria
* Participants whose limb salvage procedure may require significant manipulation of major blood vessels. * Participants with known bone marrow deficiency resulting in red blood cell deficiency (e.g. Diamond-Blackfan anemia) * Participants receiving erythropoietin-stimulating agents (e.g. epoetin alfa) * Participants with active hemorrhagic cystitis (e.g. alkylator-induced) with gross hematuria or \>50 RBCs per high powered field on urinalysis * Participants actively receiving all-trans retinoic acid (ATRA) or isotretinoin (Accutane) * Participants with known allergies to antifibrinolytics * Participants with known hypercoagulopathies * Personal history of a thrombosis or active thrombus * Participants currently on anticoagulation medications (e.g. warfarin, enoxaparin) * Participants with a history of seizures. Patients with a history of febrile seizure are eligible. * Persisting toxicity related to other systemic therapies (e.g. chemotherapy) which constitutes an unacceptable safety risk based on the judgment of the PI and/or the primary treating physician. * Female participants who are currently pregnant or actively breastfeeding. * Female participants who are currently receiving estrogen-based contraception therapy. * Inability or unwillingness of research participant or legal guardian/representative to give written informed consent. * Participants enrolled in another clinical trial utilizing an IND/IDE experimental therapy. * Participants with a history of CNS disease. * Participants with known bleeding disorder. * Participants with known platelet dysfunction.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | intra- or post-operatively transfused blood volume (mL/kg), 6 months | The intra-or post-operative volumes of transfused blood for both the TXA treated group and placebo group will be estimated with a two-sided 95% confidence interval. The blood volumes transfused per kilogram of body weight of the two groups (TXA vs. Placebo) will be evaluated using a two-sided student's t-test after log(1+x) transformation. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | changes in hemoglobin from pre-op to post-op level, 6 months | Summary statistics will be provided for the decline in hemoglobin from pre-op to post-op level, for both the TXA and placebo group. Two sample t-test or Wilcoxon rank sum test will be used to compare the differences between the two groups. Multiple comparison correction might be used for p-values to address the multiple testing issues due to measurements at multiple time points. |
| To Evaluate Differences in Post-operative Daily Surgical Drain Output for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Conclusion of surgery to time of drain removal (prior to discharge from inpatient) | Summary statistics will be provided for postoperative daily surgical drain output (in milliliters per 24 hour period for the duration of the drain) for each group. The group difference will be compared using two-sample t-test or Wilcoxon rank sum test depending on the distribution of the observed data. Multiple comparison correction might be used for p-values to address the multiple testing issues due to measurements at multiple time points. |
| To Evaluate Changes in Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA Versus Placebo. | At conclusion of surgery | The EBL for pre-op to post-op level, for both the TXA treated group and placebo group will be estimated with a two-sided 95% confidence interval. The EBL of the two groups (TXA vs. Placebo) will be evaluated using a two-sample t-test or Wilcoxon rank sum test depending on the distribution of the observed data. |
| To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | changes in platelets from pre-op to post-op level, 6 months | Summary statistics will be provided for the changes in platelet level for both the TXA and placebo group. Two sample t-test or Wilcoxon rank sum test will be used to compare the differences between the two groups. Multiple comparison correction might be used for p-values to address the multiple testing issues due to measurements at multiple time points. |
| To Evaluate Log Estimated Blood Loss (EBL) Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | At conclusion of surgery | Mean and Standard Deviation of log Estimated Blood Loss for both the TXA treated group and placebo group will be estimated. |
| To Evaluate the Association Between the intra-or Post-operatively Transfused Blood Volume and Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | At conclusion of surgery | Regression model will be used to access the correlation between the log transformed intra-or post-operatively transfused blood volume and EBL. |
| To Evaluate Log Transfused Blood Volume Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | At conclusion of surgery | Mean and Standard Deviation of log Transfused Blood Volume for both the TXA treated group and placebo group will be estimated. |
Countries
United States
Participant flow
Recruitment details
As of the data freeze date (12/14/2023), 15 patients are enrolled and 13 of them are eligible. The ineligible reason for one patient is ANC did not meet eligible levels prior to surgery. The second ineligible patient was found to be on oral estrogen contraception after receiving study drug and undergoing surgery. One patient was consented, then consent was withdrawn prior to any study procedures. This patient was not randomized.
Participants by arm
| Arm | Count |
|---|---|
| Arm A-Tranexamic Acid At initiation of surgical preparation, participants randomized to the active treatment arm will receive tranexamic acid 10 mg/kg (max 1 g), given via syringe pump programmed to infuse over 15 minutes. If no unacceptable toxicities occur, a second dose of tranexamic acid IV push over 5 to 15 minutes will be given 6 hours (with a window of +/- 30 minutes) after the first dose (either intra- or post-operatively).
Tranexamic Acid: Given IV | 6 |
| Arm B-Placebo At initiation of surgical preparation, participants randomized to the placebo treatment arm will receive 0.9% sodium chloride (salt water). It will be matched in appearance, volume, and administration to the active treatment arm with tranexamic acid. If no unacceptable toxicities occur, a second dose of placebo IV push over 5 to 15 minutes will be given 6 hours (with a window of +/- 30 minutes) after the first dose (either intra- or post-operatively).
0.9% sodium chloride: Given IV | 6 |
| Total | 12 |
Withdrawals & dropouts
| Period | Reason | FG000 | FG001 |
|---|---|---|---|
| Overall Study | Not Eligible | 1 | 1 |
Baseline characteristics
| Characteristic | Arm A-Tranexamic Acid | Arm B-Placebo | Total |
|---|---|---|---|
| Age, Continuous | 16.40 years STANDARD_DEVIATION 2.47 | 13.77 years STANDARD_DEVIATION 3.25 | 15.08 years STANDARD_DEVIATION 3.07 |
| Race/Ethnicity, Customized Asian | 1 Participants | 1 Participants | 2 Participants |
| Race/Ethnicity, Customized White | 5 Participants | 5 Participants | 10 Participants |
| Sex: Female, Male Female | 2 Participants | 3 Participants | 5 Participants |
| Sex: Female, Male Male | 4 Participants | 3 Participants | 7 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | 0 / 6 | 0 / 6 |
| other Total, other adverse events | 1 / 6 | 1 / 6 |
| serious Total, serious adverse events | 0 / 6 | 0 / 6 |
Outcome results
Primary
To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo.
The intra-or post-operative volumes of transfused blood for both the TXA treated group and placebo group will be estimated with a two-sided 95% confidence interval. The blood volumes transfused per kilogram of body weight of the two groups (TXA vs. Placebo) will be evaluated using a two-sided student's t-test after log(1+x) transformation.
Time frame: intra- or post-operatively transfused blood volume (mL/kg), 6 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | Transfused blood volume, intra-operative (intra-op) | 5.04 mL/kg | Standard Deviation 2.34 |
| Arm A-Tranexamic Acid | To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | Transfused blood volume, post-operative (post-op) | 5.74 mL/kg | Standard Deviation 1.79 |
| Arm B-Placebo | To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | Transfused blood volume, intra-operative (intra-op) | 5.15 mL/kg | Standard Deviation 2.85 |
| Arm B-Placebo | To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | Transfused blood volume, post-operative (post-op) | 5.64 mL/kg | Standard Deviation 2.06 |
| TXAKIDS | To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | Transfused blood volume, intra-operative (intra-op) | 5.12 mL/kg | Standard Deviation 2.51 |
| TXAKIDS | To Evaluate the Difference in intra-or Post-operatively Transfused Blood Volume (mL/kg) for Patients Undergoing Limb Salvage Procedures of the Distal Femur or Proximal Tibia Who Are Randomized to Receive Perioperative Tranexamic Acid (TXA) Versus Placebo. | Transfused blood volume, post-operative (post-op) | 5.71 mL/kg | Standard Deviation 1.85 |
p-value: 0.4Wilcoxon rank sum test
Secondary
To Evaluate Changes in Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA Versus Placebo.
The EBL for pre-op to post-op level, for both the TXA treated group and placebo group will be estimated with a two-sided 95% confidence interval. The EBL of the two groups (TXA vs. Placebo) will be evaluated using a two-sample t-test or Wilcoxon rank sum test depending on the distribution of the observed data.
Time frame: At conclusion of surgery
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate Changes in Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA Versus Placebo. | 669.67 ml | Standard Deviation 551.15 |
| Arm B-Placebo | To Evaluate Changes in Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA Versus Placebo. | 808.67 ml | Standard Deviation 607.53 |
| TXAKIDS | To Evaluate Changes in Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA Versus Placebo. | 739.17 ml | Standard Deviation 557.78 |
p-value: 0.9004Wilcoxon rank sum test
Secondary
To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo.
Summary statistics will be provided for the decline in hemoglobin from pre-op to post-op level, for both the TXA and placebo group. Two sample t-test or Wilcoxon rank sum test will be used to compare the differences between the two groups. Multiple comparison correction might be used for p-values to address the multiple testing issues due to measurements at multiple time points.
Time frame: changes in hemoglobin from pre-op to post-op level, 6 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Hemoglobin (intra-op) | 11.70 g/dL | Standard Deviation 2.13 |
| Arm A-Tranexamic Acid | To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Hemoglobin (post-op) | 8.23 g/dL | Standard Deviation 1.3 |
| Arm B-Placebo | To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Hemoglobin (intra-op) | 11.00 g/dL | Standard Deviation 1.64 |
| Arm B-Placebo | To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Hemoglobin (post-op) | 7.77 g/dL | Standard Deviation 0.7 |
| TXAKIDS | To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Hemoglobin (intra-op) | 11.35 g/dL | Standard Deviation 1.85 |
| TXAKIDS | To Evaluate Changes in Hemoglobin From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Hemoglobin (post-op) | 8.00 g/dL | Standard Deviation 1.02 |
p-value: 0.9307Wilcoxon rank sum test
Secondary
To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo.
Summary statistics will be provided for the changes in platelet level for both the TXA and placebo group. Two sample t-test or Wilcoxon rank sum test will be used to compare the differences between the two groups. Multiple comparison correction might be used for p-values to address the multiple testing issues due to measurements at multiple time points.
Time frame: changes in platelets from pre-op to post-op level, 6 months
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Platelets (intra-op) | 227.00 10e3 platelets/mm^3 | Standard Deviation 98.04 |
| Arm A-Tranexamic Acid | To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Platelets (post-op) | 162.33 10e3 platelets/mm^3 | Standard Deviation 25.74 |
| Arm B-Placebo | To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Platelets (intra-op) | 239.84 10e3 platelets/mm^3 | Standard Deviation 75.99 |
| Arm B-Placebo | To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Platelets (post-op) | 168.83 10e3 platelets/mm^3 | Standard Deviation 73.2 |
| TXAKIDS | To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Platelets (intra-op) | 233.42 10e3 platelets/mm^3 | Standard Deviation 83.9 |
| TXAKIDS | To Evaluate Changes in Platelets From Pre-op to Post-op Level for Patients Randomized to Receive Perioperative TXA Versus Placebo. | Platelets (post-op) | 165.58 10e3 platelets/mm^3 | Standard Deviation 52.42 |
p-value: 0.4286Wilcoxon rank sum test
Secondary
To Evaluate Differences in Post-operative Daily Surgical Drain Output for Patients Randomized to Receive Perioperative TXA Versus Placebo.
Summary statistics will be provided for postoperative daily surgical drain output (in milliliters per 24 hour period for the duration of the drain) for each group. The group difference will be compared using two-sample t-test or Wilcoxon rank sum test depending on the distribution of the observed data. Multiple comparison correction might be used for p-values to address the multiple testing issues due to measurements at multiple time points.
Time frame: Conclusion of surgery to time of drain removal (prior to discharge from inpatient)
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate Differences in Post-operative Daily Surgical Drain Output for Patients Randomized to Receive Perioperative TXA Versus Placebo. | 246.00 ml | Standard Deviation 146.81 |
| Arm B-Placebo | To Evaluate Differences in Post-operative Daily Surgical Drain Output for Patients Randomized to Receive Perioperative TXA Versus Placebo. | 83.20 ml | Standard Deviation 79.43 |
| TXAKIDS | To Evaluate Differences in Post-operative Daily Surgical Drain Output for Patients Randomized to Receive Perioperative TXA Versus Placebo. | 144.25 ml | Standard Deviation 129.86 |
p-value: 0.0714Wilcoxon rank sum test
Secondary
To Evaluate Log Estimated Blood Loss (EBL) Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively.
Mean and Standard Deviation of log Estimated Blood Loss for both the TXA treated group and placebo group will be estimated.
Time frame: At conclusion of surgery
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate Log Estimated Blood Loss (EBL) Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 6.11 log(mL) | Standard Deviation 0.67 |
| Arm B-Placebo | To Evaluate Log Estimated Blood Loss (EBL) Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 6.77 log(mL) | Standard Deviation 0.56 |
| TXAKIDS | To Evaluate Log Estimated Blood Loss (EBL) Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 6.38 log(mL) | Standard Deviation 0.7 |
Secondary
To Evaluate Log Transfused Blood Volume Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively.
Mean and Standard Deviation of log Transfused Blood Volume for both the TXA treated group and placebo group will be estimated.
Time frame: At conclusion of surgery
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate Log Transfused Blood Volume Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 1.68 log(mL/kg) | Standard Deviation 0.32 |
| Arm B-Placebo | To Evaluate Log Transfused Blood Volume Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 1.67 log(mL/kg) | Standard Deviation 0.38 |
| TXAKIDS | To Evaluate Log Transfused Blood Volume Between the intra-or Post-operatively for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 1.68 log(mL/kg) | Standard Deviation 0.34 |
Secondary
To Evaluate the Association Between the intra-or Post-operatively Transfused Blood Volume and Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively.
Regression model will be used to access the correlation between the log transformed intra-or post-operatively transfused blood volume and EBL.
Time frame: At conclusion of surgery
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Arm A-Tranexamic Acid | To Evaluate the Association Between the intra-or Post-operatively Transfused Blood Volume and Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 0.36 correlation coefficient |
| Arm B-Placebo | To Evaluate the Association Between the intra-or Post-operatively Transfused Blood Volume and Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | -0.42 correlation coefficient |
| TXAKIDS | To Evaluate the Association Between the intra-or Post-operatively Transfused Blood Volume and Estimated Blood Loss (EBL) for Patients Randomized to Receive Perioperative TXA and Placebo, Respectively. | 0.03 correlation coefficient |