Safety and Immunogenicity of a Live-attenuated Vaccine Against Respiratory Syncytial Virus in Elderly Volunteers
Model scores of the 29,894 trials active now.
Model score 8% 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 6% of the time (776 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2021-05-26, after 2020-07-10 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 2021-05-26. 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: priorlungdefinedgradeto day
Phrases that lowered it: participantshealthyvolunteersparticipantvaccine -
Accepts healthy volunteers: No (raises risk) · Who can join
-
Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
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Phase: 1 (lowers risk) · Design
-
Has a data monitoring committee: Yes (raises risk) · Design
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Primary purpose: prevention (lowers risk) · Design
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Design: parallel (raises risk) · Design
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Minimum age: 50 (lowers risk) · Who can join
-
Disease area, cancer: No (lowers risk) · Disease area
-
Trials the sponsor started in the prior 2 years: 1 (raises risk) · Sponsor's track record
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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Number of arms: 3 (lowers risk) · Design
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Sponsor type: industry (lowers risk) · Sponsor's track record
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Maximum age: 75 (raises risk) · Who can join
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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, neurology: No (lowers risk) · Disease area
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Disease area, respiratory: Yes (raises risk) · Disease area
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Sponsor's past trials: 1 (lowers risk) · Sponsor's track record
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
- 3 (typical: 2)
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- prevention (typical: treatment)
- Blinding
- double (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 4 (typical: 1)
Who can join
- Minimum age
- 50 (typical: 18)
- Maximum age
- 75 (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- No (typical: 9% yes)
Sponsor's track record
- Sponsor type
- industry (typical: academic or other)
- Sponsor's past trials
- 1 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 1 (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
- Safety and Efficacy of BARS13 in the Elderly NCT04681833 · started 2021 · scored riskier than 2% of active trials completed
- Safety Study of Live Attenuated Influenza Vaccine, CodaVax NCT03926416 · started 2017 · scored riskier than 2% of active trials completed
- Dose, Safety, Tolerability and Immunogenicity of a Stabilized Prefusion RSV F Subunit Protein Vaccine, VRC-RSVRGP084-00-VP (DS-Cav1), Alone or With Alum Adjuvant, in Healthy Adults NCT03049488 · started 2017 · scored riskier than 4% of active trials completed
- H3N2 M2SR in Pediatric Population NCT03553940 · started 2018 · scored riskier than 0% of active trials completed
- A First in Human Study to Evaluate the Safety and Immune Response to a Vaccine for the Treatment of a Respiratory Virus, When Administered Into the Arm in Healthy Adult Participants NCT04851977 · started 2018 · scored riskier than 2% 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.