Safety and Immunogenicity of Two Trivalent Subunit Influenza Vaccines in Healthy Adult Subjects
Model scores of the 29,894 trials active now.
Model score 2% for any early termination, 0% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 10% of the time (1,463 trials).
Finished trial that started 2008–2014: scored by a model trained without any trial from its start year, so its own outcome was never used.
How it ended
Completed on 2014-12-31, after 2014-09-30 start.
The score above never used this outcome: finished trial that started 2008–2014: scored by a model trained without any trial from its start year, so its own outcome was never used.
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 2014-12-31. 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: cellof childbearingpotentialtherapyiii
Phrases that lowered it: vaccineinfluenzaimmunogenicityhealthyvaccination -
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: other (lowers risk) · Design
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Phase: 3 (lowers risk) · Design
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Has a data monitoring committee: not given (lowers risk) · Design
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Trials the sponsor started in the prior 2 years: 24 (lowers risk) · Sponsor's track record
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Design: parallel (raises risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Sponsor type: industry (lowers risk) · Sponsor's track record
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Number of arms: 4 (lowers risk) · Design
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Maximum age: 49 (lowers risk) · Who can join
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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Minimum age: 18 (raises risk) · Who can join
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Sponsor's past trials: 142 (lowers risk) · Sponsor's track record
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Disease area, psychiatry: No (lowers risk) · Disease area
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
- 4 (typical: 2)
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- other (typical: treatment)
- Blinding
- double (typical: none)
- Has a data monitoring committee
- not given (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 0 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- 49 (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- industry (typical: academic or other)
- Sponsor's past trials
- 142 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 24 (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
- Safety, Tolerability, and Immunogenicity Study of a Cell-based Virosomal Influenza Vaccine in Healthy Adults NCT02148328 · started 2014 · scored riskier than 0% of active trials completed
- Safety and Immunogenicity of Three Influenza Vaccines in Children Aged 4 Years Old to Less Than 18 Years Old NCT01992107 · started 2013 · scored riskier than 1% of active trials completed
- Immunogenicity and Safety of a Cell-derived Influenza Vaccine in Adults Aged >= 18 and <= 64, Plus Revaccination NCT00889889 · started 2009 · scored riskier than 1% of active trials completed
- Safety and Immunogenicity of Three Influenza Vaccines Adults Ages 18 and Older NCT01992094 · started 2013 · scored riskier than 4% of active trials completed
- Study of Egg-derived Influenza Vaccine and Cell Culture-derived Influenza Vaccine in Healthy Children and Adolescents NCT02621177 · started 2013 · 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.