ClinicalTrials.gg
TerminatedNCT00722436Updated Feb 15, 2017Results posted

Tranexamic Acid for Craniofacial Surgery

A Phase 4 interventional study of Tranexamic acid and saline in Craniosynostosis and Bleeding, sponsored by University of Pittsburgh. Terminated at 1 site in United States. Open to participants aged 6 Months to 18 Years. Per ClinicalTrials.gov, last updated 2017-02-15.

Sponsored by University of Pittsburgh · Phase 4, Interventional, and Treatment

Why this study was terminated
Study dose changed based on recent publications
Phase
Phase 4
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
6 Months to 18 Years
Sex
All
01

Study summary

This is a randomized, blinded, prospective study that will investigate the potential benefit of tranexamic acid to reduce the intraoperative bleeding and blood transfusions in pediatric patients undergoing craniofacial surgeries.

Read the detailed description

Surgical procedures for the correction of craniofacial deformities result in unavoidable and significant blood loss in small children and infants. Patients may experience blood losses that exceed one to two blood volumes. In an effort to reduce our transfusion requirements, we have introduced tranexamic acid into our practice. However, the benefit of tranexamic acid in pediatric craniofacial surgery has not yet been reported. We hypothesize that the intraoperative use of tranexamic acid in pediatric patients presenting for craniofacial reconstructions will reduce blood loss and allogeneic transfusion requirements.

This is a randomized, blinded, prospective study that will investigate the potential benefit of tranexamic acid to reduce the intraoperative bleeding and blood transfusions in pediatric patients undergoing craniofacial surgeries. An initial dose of 100 mg/kg tranexamic acid (Cyclokapron 100mg/ml) or an equal volume of a placebo will be administered over 15 minutes after the induction of anesthesia and before the skin incision. A maintenance infusion of 10 mg/kg/hr of tranexamic acid or equal volume of a placebo will be started upon completion of the initial dose and will be continued until skin closure. The primary outcome will include the reduction in the total volume of allogeneic erythrocytes.

02

Conditions studied

  • Craniosynostosis
  • Bleeding

Keywords

  • antifibrinolytic, tranexamic acid
03

In context

Craniosynostoses

51 studies on the registry are indexed under Craniosynostoses; 14 are open to participants now.

This study's enrollment of 20 is below the median of 27 across 22 interventional studies indexed under Craniosynostoses.

Browse Craniosynostoses studies →

Lead sponsor

University of Pittsburgh is the lead sponsor of 1,419 studies on the registry; 168 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 4 (44%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Months to 18 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

The inclusion of the patients will depend on the following criteria:

  1. All pediatric patients scheduled for primary or secondary repair of craniosynostosis with a frontal orbital advancement, or cranial vault reconstruction.
  2. Patients will be between the ages of 6 months and 18 years old.
  3. They will be > than 5 kg.
  4. All subjects being evaluated in the Craniofacial Clinic for primary or secondary repair of craniosynostosis will potentially be included in the study. Prior to inclusion in the study potential participants will be screened by history and laboratory data. The laboratory data will include a complete blood count, PT, , type and cross, factor V leiden, anticardiolipin antibody, and lupus anticoagulant. The history will be obtained from the parents or current care takers. The medical records may be reviewed if there is a need for clarification.

Exclusion criteria

Exclusion Criteria:

Patients that will be excluded from the study include the following:

  1. Familial or personal coagulopathy risk-factor V leiden, anticardiolipin antibody, and lupus anticoagulant
  2. Abnormal PT, , count. or closing time. All patients presenting for craniofacial surgery have preoperative blood work performed which includes a type and screen, HCT, PLT, PT, PTT, and closing time. Patients who have abnormalities detected in their coagulation profile proceed on to a complete hematologic evaluation that includes an evaluation for Von Willebrand's Disease.
  3. History of thrombotic episodes in the patient
  4. Renal failure or hepatic failure.
  5. Infants less than 5 kg
  6. Age \< 6 months or > 18 years old
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Tranexamic acid

    Tranexamic acid (100 mg/kg load, 10 mg/kg/hr) intravenous

    Drug: Tranexamic acid

  • Placebo comparator
    Placebo

    Saline was administered intravenously

    Drug: saline

Interventions

06

What researchers measure

Primary outcomes

  1. Total Volume (ml/kg) of Allogeneic Blood Exposure.

    This is the blood administered during surgery. The blood comes form the blood bank. It is not cell salvage blood. The volume was normalized by weight.

    Time frame: intraoperative and postoperative (24 hr)

  2. Number of Patients That Remained Transfusion Free

    Time frame: 24 hours

Secondary outcomes

  1. Effect of Tranexamic Acid on Prothrombin Time (PT), Partial Thromboplastin Time (PTT) at Three Time Points (Baseline, After Osteotomies, and Immediately After Procedure).

    Time frame: (baseline, after osteotomies, and immediately after procedure)

  2. Platelets

    Time frame: baseline, after osteotomies, immediately after surgery

07

Results

Posted Feb 15, 2017
Limitations and caveats
Study terminated because two studies published during the trial demonstrated efficacy of tranexamic acid at a lower dose.

Participant flow

Participant flow — Overall Study
MilestoneTranexamic AcidPlacebo
Started911
Completed911
Not completed00

Outcome measures

PrimaryTotal Volume (ml/kg) of Allogeneic Blood Exposure.

This is the blood administered during surgery. The blood comes form the blood bank. It is not cell salvage blood. The volume was normalized by weight.

Time frame:
intraoperative and postoperative (24 hr)
Reported as:
Mean · ml/kg
Total Volume (ml/kg) of Allogeneic Blood Exposure.
ml/kgTranexamic AcidPlacebo
Total Volume (ml/kg) of Allogeneic Blood Exposure.16.1 ± 13.917.1 ± 10.4
PrimaryNumber of Patients That Remained Transfusion Free
Time frame:
24 hours
Reported as:
Number · participants
Number of Patients That Remained Transfusion Free
participantsTranexamic AcidPlacebo
Number of Patients That Remained Transfusion Free20
SecondaryEffect of Tranexamic Acid on Prothrombin Time (PT), Partial Thromboplastin Time (PTT) at Three Time Points (Baseline, After Osteotomies, and Immediately After Procedure).
Time frame:
(baseline, after osteotomies, and immediately after procedure)
Reported as:
Mean · seconds
Effect of Tranexamic Acid on Prothrombin Time (PT), Partial Thromboplastin Time (PTT) at Three Time Points (Baseline, After Osteotomies, and Immediately After Procedure).
secondsTranexamic AcidPlacebo
PT -baseline15.1 ± 0.8413.8 ± 0.74
PT-after osteotomies18.5 ± 3.9316.1 ± 1.94
PT-immediately after surgery17.7 ± 1.1817 ± 1.74
PTT -baseline34.6 ± 2.9232.9 ± 2.67
PTT-after osteotomies37.2 ± 9.7534.6 ± 3.62
PTT-immediately after surgery33.3 ± 3.534.8 ± 3.9
SecondaryPlatelets
Time frame:
baseline, after osteotomies, immediately after surgery
Reported as:
Mean · 10^9 platelets/L
Platelets
10^9 platelets/LTranexamic AcidPlacebo
platelets-baseline301 ± 109364 ± 125
platelets-after osteotomies253 ± 101300 ± 107
platelets-immediately after surgery223 ± 89231 ± 99

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Tranexamic Acid—0/9 (0%)0/9 (0%)
Placebo—0/11 (0%)0/11 (0%)

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Tranexamic AcidPlaceboTotal
<=18 years91120
Between 18 and 65 years000
>=65 years000
Sex: Female, Male
Sex: Female, Male(Participants)Tranexamic AcidPlaceboTotal
Female358
Male6612
08

Study locations

1 site
  • The Children's Hospital of Pittsburgh
    Pittsburgh, Pennsylvania 15213, United States
09

References and documents

Publications

  • 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. PubMed 11429344 ↗
  • 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. PubMed 15791100 ↗
  • Henry DA, Moxey AJ, Carless PA, O'Connell D, McClelland B, Henderson KM, Sly K, Laupacis A, Fergusson D. Anti-fibrinolytic use for minimising perioperative allogeneic blood transfusion. Cochrane Database Syst Rev. 2001;(1):CD001886. doi: 10.1002/14651858.CD001886. PubMed 11279735 ↗

Individual participant data

Plan to share: No — We stopped the study early because emerging data came out that demonstrated benefit with significantly lower doses than our study. We were compelled to stop enrolling.

10

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jul 2008, a primary completion of Jun 2012 and a completion of Jun 2012. It does not say whether these dates are actual or estimated.

Results were first posted in Feb 2017, 4 years 8 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 23, 2008
First posted
Jul 25, 2008
Start
Jul 2008
Primary completionActual
Jun 2012
CompletionActual
Jun 2012
Results first posted
Feb 15, 2017
Last update
Feb 15, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 15, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00722436
Responsible party
Franklyn Cladis (Associate Professor of Anesthesiology, University of Pittsburgh) — Principal investigator
First posted
Jul 25, 2008
Start date
Jul 2008
Primary completion
Jun 2012
Completion
Jun 2012
Results posted
Feb 15, 2017
Last update
Feb 15, 2017

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Tranexamic Acid

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