Reactogenicity, Safety and Immunogenicity of a LAIV H7N9 Influenza Vaccine
Model scores of the 29,894 trials active now.
Model score 3% 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 6% of the time (340 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 2015-04-30, after 2014-10-31 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 2015-04-30. 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: leukemiaplaceboacutenonsurgery
Phrases that lowered it: vaccineinfluenzareceipthealthyimmunogenicity -
Accepts healthy volunteers: Yes (lowers risk) · Who can join
-
Sponsor's past termination rate: no earlier finished trials (lowers risk) · Sponsor's track record
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Phase: 1 (lowers risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Has a data monitoring committee: Yes (raises risk) · Design
-
Design: parallel (raises risk) · Design
-
Blinding: quadruple (lowers risk) · Design
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Maximum age: 49 (lowers risk) · Who can join
-
Disease area, cancer: No (lowers risk) · Disease area
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Primary purpose: prevention (lowers risk) · Design
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Minimum age: 18 (raises risk) · Who can join
-
Responsible party: principal investigator (raises risk) · Design
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
- 1 (typical: 2)
- Number of arms
- 2
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- prevention (typical: treatment)
- Blinding
- quadruple (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- principal investigator (typical: sponsor)
- Collaborators
- 2 (typical: 0)
- Keywords listed
- 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
- academic or other
- Sponsor's past trials
- 0 (typical: 32)
- Sponsor's past termination rate
- no earlier finished trials (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 0 (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
- infectious disease, respiratory
- 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
- Reactogenicity, Safety and Immunogenicity of a Live Monovalent A/17/CALIFORNIA/66/395 (H2N2) Influenza Vaccine NCT01982331 · started 2013 · scored riskier than 2% of active trials completed
- Safety Trial of Live Attenuated Influenza (H7N3) Vaccine NCT01511419 · started 2012 · scored riskier than 1% of active trials completed
- Safety and Immunogenicity of a Live-attenuated Universal Flu Vaccine Followed by an Inactivated Universal Flu Vaccine NCT03300050 · started 2017 · scored riskier than 3% of active trials completed
- Safety, Tolerability and Immunogenicity of a Plant-made H7 Virus-like Particle (VLP) Influenza Vaccine in Adults. NCT02022163 · started 2013 · scored riskier than 1% of active trials completed
- Safety and Immunogenicity of Priming With Live Attenuated A/H7N9 Influenza Virus Vaccine Followed By Inactivated A/H7N9 Influenza Virus Vaccine With AS03 Adjuvant NCT02957656 · started 2016 · 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.