ClinicalTrials.gg
Status unknownNCT03280212TRACEUpdated Sep 14, 2017

Tranexamic Acid in the Treatment of Residual Chronic Subdural Hematoma

A Phase 3 interventional study of Tranexamic Acid 500 MG in Chronic Subdural Hematoma, sponsored by Unity Health Toronto. Status unknown at 1 site in Canada. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2017-09-14.

Sponsored by Unity Health Toronto · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Sep 2017), so the status shown — last known as Recruiting — may be out of date.

From the registry’s dates

  • Registered 6 months after the study started (first participant enrolled Mar 2017, registered Sep 2017).
Phase
Phase 3
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Chronic subdural hematoma (CSDH) is a common disease after minor head trauma, especially in elderly patients. This medical condition is characterized by blood collection in the subdural space, which can result in severe neurological impairment. Current standard of care is the evacuation of the CSDH by means of different surgical approaches. Although clinical and surgical outcomes are satisfying in most cases, considerable morbidity and mortality as well as recurrence rates of 3-31% are frequently reported. Therefore a non-surgical approach for the treatment of CSDH would be desirable. Tranexamic acid (TXA), an antifibrinolytic drug has been shown to decrease hematoma volume in a small cohort of patients suffering from CSDH. The present study is designed to test the hypothesis that TXA can reduce the volume of CSDH. Volume measurements of residual CSDH after burr-hole surgery will be performed during study course to quantify treatment success. The trial is designed as a randomized controlled pilot study, where half of the patients will be assigned to daily intake of TXA, whereas the other half will receive medical treatment according to current practice without TXA prescription. The primary endpoint of the study is defined as volume change in milliliters (mL) after 4-8 weeks of treatment. Secondary endpoints are hematoma volume change at 8-12 weeks, the rate of patients with resolution of the CSDH after 4-8 weeks and 8-12 weeks days, as well as the rate of reoperation during study course due to hematoma extension and neurological deterioration. Additionally the neurological outcome and the drug compatibility will be estimated as secondary objectives.

02

Conditions studied

  • Chronic Subdural Hematoma

Keywords

  • Chronic subdural hematoma
  • Tranexamic acid
  • TXA
03

In context

Hematoma, Subdural, Chronic

112 studies on the registry are indexed under Hematoma, Subdural, Chronic; 49 are open to participants now.

This study's planned enrollment of 60 is below the median of 185 across 86 interventional studies indexed under Hematoma, Subdural, Chronic.

Browse Hematoma, Subdural, Chronic studies →

Lead sponsor

Unity Health Toronto is the lead sponsor of 447 studies on the registry; 82 are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 1 (20%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

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

  • Patients diagnosed with chronic subdural hematoma, and have a planned or have received a unilateral or bilateral burr-hole craniostomy or mini-craniotomy
  • Written (patient, power of attorney or substitute decision maker)
  • Competence to take study medication properly and regularly or access to care giver that is able to comply with accurate study medication administration

Exclusion criteria

Exclusion Criteria:

  • to TXA or any of the ingredients
  • Pregnancy
  • Irregular menstrual bleeding with unidentified cause
  • Acquired colour vision disturbances
  • Acute and chronic renal insufficiency indicated by (GFR) ≤ 30 mL/min
  • Hematuria, caused by diseases of renal parenchyma
  • Current alcohol abuse (as indicated by an Alcohol Use Disorders Identification Test (AUDIT) score of 10 or higher) drug abuse, or recreational drug use
  • Concomitant intake of hormonal , factor IX complex concentrates, and anti-inhibitor coagulant concentrates (factor VII, activated factor IX)
  • Active, history, or increased risk of thrombotic events (including deep vein thrombosis, pulmonary embolism, cerebral venous thrombosis, arterial thrombotic events), symptomatic carotid stenosis, myocardial infarction, acute coronary syndrome, coronary artery disease, or consumption coagulopathy within the past 2 years
  • History of angioplasty with cardiac stent placement or mechanical heart valve
  • Active or history of brain pathologies such as stroke (hemorrhagic and ischemic), subarachnoid hemorrhage, or malignant brain tumors (glioma, and others) as well as history of seizures within the past 2 years
  • to stopping full therapeutic doses of non-acetylsalicylic acid (ASA) antiplatelets, warfarin, rivaroxaban, apixaban, dabigatran, or other anticoagulant for 2 weeks after surgery
  • Patients requiring immediate revision surgery (as defined by attending surgeon)
  • Inability of oral drug intake or missing support to guarantee oral drug intake
Terms in these criteria, in plain language(6)

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.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Tranexamic Acid Arm

    Tranexamic Acid 500 milligrams (MG) Participants of the Tranexamic Acid (TXA) arm will receive the study drug, TXA. Participants of average body weight (60-100kg) will receive TXA according to a 500mg three times daily (TID) dose regimen. Weight deviations from this range will see dose adjustments as follows: participants \<60kg will receive 500mg two times daily (BID), and participants \>100kg will receive 1000mg BID.

    Drug: Tranexamic Acid 500 MG

  • No intervention
    Control Arm

    No intervention Participants in the control arm will not receive any additional intervention, medication, or placebo, and will serve as a comparative arm for the experimental arm.

Interventions

06

What researchers measure

Primary outcomes

  1. Chronic subdural hematoma volume change

    Change in hematoma volume in mL according to volume measurements made on CT scans comparing CT scan at 4-8 weeks to immediate post-operative CT scan.

    Time frame: 4-8 weeks, 8-12 weeks

Secondary outcomes

  1. Neurological outcome

    An assessment of neurological outcome as measured by the National Institutes of Health Stroke Scale (NIHSS)

    Time frame: 4-8 weeks, 8-12 weeks

  2. Quality of life

    Participants quality of life as measured on the Health Utilities Index (HUI).

    Time frame: 4-8 weeks, 8-12 weeks

  3. Quality of life

    Participants quality of life as measured on the 36-item Short Form Health Survey (SF-36).

    Time frame: 4-8 weeks, 8-12 weeks

  4. Occurrence of adverse events

    Safety of the TXA dose regimen by monitoring incidence of Treatment-Emergent Adverse Events \[Safety and Tolerability\]

    Time frame: 4-8 weeks, 8-12 weeks

07

Study locations

1 of 1 sites recruiting
  • St. Michael's Hospital
    Toronto, Ontario M5B 1W8, Canada
    Recruiting
    • Adriana M Workewych, HBSc · Contactworkewycha@smh.ca · 416-864-5312
    • Michael D Cusimano, Md, PhD · Principal investigator
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Mar 2017 (actual). Primary completion is estimated for Mar 2018, 12 months after the start.

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

Registered
Sep 10, 2017
First posted
Sep 12, 2017
StartActual
Mar 6, 2017
Primary completionEst.
Mar 2018
CompletionEst.
Mar 2018
Last update
Sep 14, 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 Sep 14, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03280212
Responsible party
Michael Cusimano (Neurosurgeon, Unity Health Toronto) — Principal investigator
First posted
Sep 12, 2017
Start date
Mar 6, 2017
Primary completion
Mar 2018 (estimated)
Completion
Mar 2018 (estimated)
Last update
Sep 14, 2017

Study contacts

Adriana M Workewych, HBSc
Contact
workewycha@smh.ca
416-864-5312
Stanley Zhang
Contact
zhangsh@smh.ca
416-864-5312

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Sep 2017. You cannot join it, but the record below documents what was studied.

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