Evaluation of Priming Effects by PLAI Vaccine on the Subsequent Response to Inactivated H5N1 Vaccine
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 13% of the time (331 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 2014-09-30, after 2014-06-30 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 2014-09-30. 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: phase iilungii studystopeffects
Phrases that lowered it: vaccinehealthyvolunteersinfluenzavaccination -
Accepts healthy volunteers: Yes (lowers risk) · Who can join
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Phase: 2 (raises risk) · Design
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Sponsor's past termination rate: 5.7% (lowers risk) · Sponsor's track record
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Trials the sponsor started in the prior 2 years: 52 (lowers risk) · Sponsor's track record
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Has a data monitoring committee: Yes (raises risk) · Design
-
Design: single group (raises risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Maximum age: 49 (lowers risk) · Who can join
-
Primary purpose: prevention (lowers risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Blinding: none (raises risk) · Design
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Minimum age: 18 (raises risk) · Who can join
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Disease area, infectious disease: Yes (lowers risk) · Disease area
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Responsible party: principal investigator (lowers risk) · Design
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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
- 2
- Number of arms
- 1 (typical: 2)
- Allocation
- not applicable (typical: randomized)
- Design
- single group (typical: parallel)
- Primary purpose
- prevention (typical: treatment)
- Blinding
- 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
- 88 (typical: 32)
- Sponsor's past termination rate
- 5.7% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 52 (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
- 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 and Immunogenicity of Live Attenuated Influenza H5N2 NCT01841918 · started 2013 · scored riskier than 2% of active trials completed
- Phase I Safety and Immunogenicity of Live Attenuated Influenza H5 Candidate Vaccine Strain A/17/Turkey/Turkey/05/133 (H5N2) in Healthy Thai Volunteers NCT01656356 · started 2012 · scored riskier than 1% of active trials completed
- Phase I/II Safety and Immunogenicity of Pandemic Live Attenuated Influenza Vaccine (PLAIV) Candidate Strain A/17/CA/2009/38 (H1N1) in Healthy Thais NCT01666262 · started 2009 · scored riskier than 1% of active trials completed
- Immunogenicity and Safety Study of a Booster Vaccination With a Recombinant H5N1 Influenza HA Vaccine in Primed Adults NCT01195038 · started 2010 · scored riskier than 0% of active trials completed
- Evaluating the Safety and Immune Response to an H5N1 Influenza Vaccine in People Who Have Previously Received an H5N1 or H7N3 Influenza Vaccine and in People Who Have Never Received a Live Attenuated Influenza Vaccine NCT01443663 · started 2011 · 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.