Blood Loss Reduction After Total Knee Arthroplasty. Comparison Topical Tranexamic Acid vs Platelet Rich Plasma
Model scores of the 29,894 trials active now.
Model score 5% for any early termination, 2% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 9% of the time (44 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2017-03-09, after 2015-09-30 start.
The score above never used this outcome: finished trial that started in 2015 or later: the model never saw it during training.
Termination over time, as the model saw it at the start
Cumulative chance of ending terminated (red) or completed (green) by each year from its start; it actually ended on 2017-03-09. The rest of the way to 100% is still running.
From the competing-risks survival model (termination vs completion, still-running trials censored), fit to trials that started 2008–2014 and recalibrated to termination rates over 2022–2024, since termination has become more common. Checked on past years, it still ran a little low when the rise continued.
What moved the score
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Accepts healthy volunteers: Yes (lowers risk) · Who can join
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: informationtrialdiagnosisgivenwilling
Phrases that lowered it: kneeosteoarthritisarthroplastytotalplatelet rich -
Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
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Phase: 3 (lowers risk) · Design
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Design: parallel (raises risk) · Design
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Responsible party: principal investigator (lowers risk) · Design
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Has a data monitoring committee: Yes (raises risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Drug's FAERS reports marked serious: 97.4% (raises risk) · Drug's FDA history
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Minimum age: 18 (raises risk) · Who can join
-
Disease area, cancer: No (lowers risk) · Disease area
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Primary purpose: treatment (raises risk) · Design
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Drug's FAERS reports with a death: 21.6% (raises risk) · Drug's FDA history
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Maximum age: not given (raises risk) · Who can join
Every input that moved this score, largest first: SHAP contributions in log-odds, red raising risk and green lowering it. They describe the model, not causes of termination. Phrases are traced from the text features back to this registration's words, approximately.
The trial
Design
- Phase
- 3 (typical: 2)
- Number of arms
- 2
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- treatment
- Blinding
- none
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- principal investigator (typical: sponsor)
- Collaborators
- 0
- Keywords listed
- 4 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- not given (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- academic or other
- Sponsor's past trials
- 3 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 11 (typical: 19)
Drug's FDA history
- Drugs with FDA adverse-event history
- 1
- Drug has FAERS history
- Yes (typical: 64% yes)
- Drug's FAERS reports before start
- 1705 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 416 (typical: 412.5)
- Drug's FAERS reports marked serious
- 97.4% (typical: 85.6%)
- Drug's FAERS reports with a death
- 21.6% (typical: 15.9%)
Disease area and drugs
- Disease areas
- musculoskeletal
- Drugs matched to FDA substances
- platelet rich plasma, tranexamic acid
Typical values are among the trials active now. Sponsor and drug history are counted only up to this trial's start date.
Similar finished trials
- Tranexamic Acid for Unilateral Total Knee Arthroplasty NCT01594671 · started 2012 · scored riskier than 65% of active trials completed
- Efficacy Comparison of Topical and Intravenous Tranexamic Acid to Reduce the Number of Blood Transfusions in TKA NCT01881568 · started 2013 · scored riskier than 23% of active trials completed
- Peri-articular Tranexamic Acid Injection in Total Knee Arthroplasty NCT02829346 · started 2012 · scored riskier than 12% of active trials completed
- Efficacy and Safety of Topical Application of Tranexamic Acid for Saving Blood Losses in Patients Subjected to Prosthetic Knee Surgery NCT03386656 · started 2017 · scored riskier than 27% of active trials completed
- Topical Versus Intravenous Tranexamic Acid in Total Knee Arthroplasty NCT02323373 · started 2014 · scored riskier than 9% of active trials completed
Closest by meaning of the registration text (PubMedBERT embeddings), among finished trials. How they ended is context, not an input to this trial's score.