Tranexamic Acid Dosing in Adult Spinal Deformity Surgery

NCT ID: NCT02053363

Last Updated: 2022-06-08

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

View full results

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

64 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-03-31

Study Completion Date

2020-06-26

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to evaluate two dosing protocols for tranexamic acid (TXA), an anti-fibrinolytic used to decrease blood loss in adult patients undergoing complex, reconstructive spinal fusion surgeries.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

After consent is obtained and the patient is enrolled in the trial, patients will be assigned de-identified, unique identification (ID) numbers. Randomization of these IDs to either low or high dose TXA will occur via a computer generated random assignment. Given the variations that may exist in surgical technique (e.g. performance of osteotomies), stratified randomization will be performed by attending surgeon. Based upon the randomization, the pharmacy will prepare TXA for one of two intravenous dosing protocols:

1. Low Dose (Standard of Care/Control): Loading Dose 10mg/kg given over 15 minutes, followed by 1mg/kg/hr via continuous infusion
2. High Dose (Study Group): Loading Dose 50mg/kg given over 15 minutes, followed by 5mg/kg/hr via continuous infusion.

The surgeon, anesthesia team, and operating room staff will be blind to the concentration of TXA in the medications received. Treatments may be "unblinded" at the discretion of the surgeon and anesthesiologist, in cases of extreme blood loss. If additional anti-fibrinolytics are given, the change in dose will be recorded.

Post-operative care will be the same as any other patient and data collection will be information contained in the patient's medical record that is part of routine, standard of care.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Adult Spinal Deformity

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

High Dose/Study Group

Tranexamic Acid (Cyklokapron) Loading Dose 50mg/kg given over 15 minutes, followed by 5mg/kg/hr via continuous infusion. The loading dose will be given to coincide with incision. The continuous infusion will be stopped at the conclusion of fascial layer closure.

Group Type EXPERIMENTAL

Tranexamic Acid (Cyklokapron)

Intervention Type DRUG

Standard of Care/Control

Tranexamic Acid (Cyklokapron) Loading Dose 10mg/kg given over 15 minutes, followed by 1mg/kg/hr via continuous infusion. The loading dose will be given to coincide with incision. The continuous infusion will be stopped at the conclusion of fascial layer closure.

Group Type ACTIVE_COMPARATOR

Tranexamic Acid (Cyklokapron)

Intervention Type DRUG

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Tranexamic Acid (Cyklokapron)

Intervention Type DRUG

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Adult patients (ages 18-75) scheduled to undergo long segment (greater than 8 motion segments) posterior spinal fusion with instrumentation (PSF) for adult scoliosis

Exclusion Criteria

* Patients with acquired defective color vision
* Subarachnoid hemorrhage
* Active intravascular clotting
* Hypersensitivity to tranexamic acid or any of the ingredients
* Patients who pre-donate autologous blood for intra- or post-operative use (Directed donor units are acceptable)
* History of suspected blood disorders or abnormal coagulation laboratory results
* Current anticoagulation therapy that cannot be interrupted
* History of deep vein thrombosis (DVT)
* Impaired renal function or creatinine clearance \<60 ml/min
* Pregnancy or women who are lactating/breastfeeding
* Women on hormonal contraceptives
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

AOSpine North America

INDUSTRY

Sponsor Role collaborator

Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Michael Kelly

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Michael P. Kelly, MD, MSCI(p)

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Washington University School of Medicine

St Louis, Missouri, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

References

Explore related publications, articles, or registry entries linked to this study.

Baldus CR, Bridwell KH, Lenke LG, Okubadejo GO. Can we safely reduce blood loss during lumbar pedicle subtraction osteotomy procedures using tranexamic acid or aprotinin? A comparative study with controls. Spine (Phila Pa 1976). 2010 Jan 15;35(2):235-9. doi: 10.1097/BRS.0b013e3181c86cb9.

Reference Type BACKGROUND
PMID: 20081519 (View on PubMed)

Neilipovitz DT. Tranexamic acid for major spinal surgery. Eur Spine J. 2004 Oct;13 Suppl 1(Suppl 1):S62-5. doi: 10.1007/s00586-004-0716-2. Epub 2004 May 4.

Reference Type BACKGROUND
PMID: 15127250 (View on PubMed)

Okubadejo GO, Bridwell KH, Lenke LG, Buchowski JM, Fang DD, Baldus CR, Nielsen CH, Lee CC. Aprotinin may decrease blood loss in complex adult spinal deformity surgery, but it may also increase the risk of acute renal failure. Spine (Phila Pa 1976). 2007 Sep 15;32(20):2265-71. doi: 10.1097/BRS.0b013e31814ce9b0.

Reference Type BACKGROUND
PMID: 17873821 (View on PubMed)

Berenholtz SM, Pham JC, Garrett-Mayer E, Atchison CW, Kostuik JP, Cohen DB, Nundy S, Dorman T, Ness PM, Klag MJ, Pronovost PJ, Kebaish KM. Effect of epsilon aminocaproic acid on red-cell transfusion requirements in major spinal surgery. Spine (Phila Pa 1976). 2009 Sep 1;34(19):2096-103. doi: 10.1097/BRS.0b013e3181b1fab2.

Reference Type BACKGROUND
PMID: 19730217 (View on PubMed)

Elwatidy S, Jamjoom Z, Elgamal E, Zakaria A, Turkistani A, El-Dawlatly A. Efficacy and safety of prophylactic large dose of tranexamic acid in spine surgery: a prospective, randomized, double-blind, placebo-controlled study. Spine (Phila Pa 1976). 2008 Nov 15;33(24):2577-80. doi: 10.1097/BRS.0b013e318188b9c5.

Reference Type BACKGROUND
PMID: 19011538 (View on PubMed)

Gill JB, Chin Y, Levin A, Feng D. The use of antifibrinolytic agents in spine surgery. A meta-analysis. J Bone Joint Surg Am. 2008 Nov;90(11):2399-407. doi: 10.2106/JBJS.G.01179.

Reference Type BACKGROUND
PMID: 18978408 (View on PubMed)

Neilipovitz DT, Murto K, Hall L, Barrowman NJ, Splinter WM. A randomized trial of tranexamic acid to reduce blood transfusion for scoliosis surgery. Anesth Analg. 2001 Jul;93(1):82-7. doi: 10.1097/00000539-200107000-00018.

Reference Type BACKGROUND
PMID: 11429344 (View on PubMed)

Sethna NF, Zurakowski D, Brustowicz RM, Bacsik J, Sullivan LJ, Shapiro F. Tranexamic acid reduces intraoperative blood loss in pediatric patients undergoing scoliosis surgery. Anesthesiology. 2005 Apr;102(4):727-32. doi: 10.1097/00000542-200504000-00006.

Reference Type BACKGROUND
PMID: 15791100 (View on PubMed)

Shapiro F, Zurakowski D, Sethna NF. Tranexamic acid diminishes intraoperative blood loss and transfusion in spinal fusions for duchenne muscular dystrophy scoliosis. Spine (Phila Pa 1976). 2007 Sep 15;32(20):2278-83. doi: 10.1097/BRS.0b013e31814cf139.

Reference Type BACKGROUND
PMID: 17873823 (View on PubMed)

Grant JA, Howard J, Luntley J, Harder J, Aleissa S, Parsons D. Perioperative blood transfusion requirements in pediatric scoliosis surgery: the efficacy of tranexamic acid. J Pediatr Orthop. 2009 Apr-May;29(3):300-4. doi: 10.1097/BPO.0b013e31819a85de.

Reference Type BACKGROUND
PMID: 19305284 (View on PubMed)

Goobie SM, Meier PM, Pereira LM, McGowan FX, Prescilla RP, Scharp LA, Rogers GF, Proctor MR, Meara JG, Soriano SG, Zurakowski D, Sethna NF. Efficacy of tranexamic acid in pediatric craniosynostosis surgery: a double-blind, placebo-controlled trial. Anesthesiology. 2011 Apr;114(4):862-71. doi: 10.1097/ALN.0b013e318210fd8f.

Reference Type BACKGROUND
PMID: 21364458 (View on PubMed)

Clohisy JCF, Lenke LG, Dafrawy MHE, Wolfe RC, Frazier E, Kelly MP. Randomized, controlled trial of two tranexamic acid dosing protocols in adult spinal deformity surgery. Spine Deform. 2022 Nov;10(6):1399-1406. doi: 10.1007/s43390-022-00539-z. Epub 2022 Jun 25.

Reference Type DERIVED
PMID: 35751772 (View on PubMed)

Provided Documents

Download supplemental materials such as informed consent forms, study protocols, or participant manuals.

Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

201312010

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Tranexamic Acid Infusion During Elective Spine Surgery
NCT04312880 ENROLLING_BY_INVITATION PHASE4
Combined IV and Topical TXA in Major Spine Surgery
NCT04797156 COMPLETED EARLY_PHASE1