Immunogenicity and Safety of Bivalent Meningococcal Serogroups A and C Tetanus Toxoid Conjugate Vaccine in Chinese
Model scores of the 29,894 trials active now.
Model score 2% for any early termination, 1% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 14% of the time (741 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2018-09-06, after 2016-05-12 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 2018-09-06. 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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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: subjects withunderstand andsignto understandprior
Phrases that lowered it: vaccinehealthyvaccinationimmunogenicitymedical history -
Accepts healthy volunteers: Yes (lowers risk) · Who can join
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Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
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Primary purpose: prevention (lowers risk) · Design
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Phase: 3 (lowers risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Design: parallel (raises risk) · Design
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Number of arms: 9 (lowers risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Minimum age: 0.25 (lowers risk) · Who can join
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Has a data monitoring committee: No (lowers risk) · Design
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Sponsor's past trials: 25 (lowers risk) · Sponsor's track record
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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
- 9 (typical: 2)
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- prevention (typical: treatment)
- Blinding
- double (typical: none)
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 0 (typical: 1)
Who can join
- Minimum age
- 0.25 (typical: 18)
- Maximum age
- 5 (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- academic or other
- Sponsor's past trials
- 25 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 9 (typical: 19)
Drug's FDA history
- Drugs with FDA adverse-event history
- 0 (typical: 1)
- Drug has FAERS history
- No (typical: 64% yes)
- Drug's FAERS reports before start
- 0 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 0 (typical: 412.5)
- Drug's FAERS reports marked serious
- no FAERS history (typical: 85.6%)
- Drug's FAERS reports with a death
- no FAERS history (typical: 15.9%)
Disease area and drugs
- Disease areas
- none of the 14 tracked areas
- Drugs matched to FDA substances
- none matched
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
- Immunogenicity and Safety of Meningococcal (A, C, Y and W135) Conjugate Vaccine NCT02003495 · started 2013 · scored riskier than 1% of active trials completed
- Immunogenicity and Safety of Group A, C, Y and W135 Meningococcal Polysaccharide Vaccine NCT02003313 · started 2013 · scored riskier than 0% of active trials completed
- A Clinical Trial of ACYW135 Group Meningococcal Polysaccharide Conjugate Vaccine (CRM197 Vector) in a 4 to 6 Year-old Population NCT06011200 · started 2023 · scored riskier than 0% of active trials completed
- Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Meningococcal Conjugate Vaccine (GSK134612) When Co-administered With Boostrix® in Subjects Between 11 and 25 Years of Age NCT01767376 · started 2013 · scored riskier than 2% of active trials completed
- A Study of a Quadrivalent Meningococcal Tetanus Protein Conjugate Vaccine in Infants and Toddlers NCT01049035 · started 2009 · scored riskier than 0% 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.