Safety, Tolerability and Immunogenicity Study of 2-dose Heterologous Regimens for Ebola Vaccines Ad26.ZEBOV/MVA-BN-Filo
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 8% of the time (780 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2018-12-12, after 2015-12-10 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 2018-12-12. 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: cellscellactivestableregimens
Phrases that lowered it: vaccinehealthyvaccinationimmunogenicityparticipant -
Accepts healthy volunteers: Yes (lowers risk) · Who can join
-
Phase: 2 (raises risk) · Design
-
Sponsor's past termination rate: no earlier finished trials (lowers risk) · Sponsor's track record
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Primary purpose: prevention (lowers risk) · Design
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Has a data monitoring committee: Yes (raises risk) · Design
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Blinding: triple (raises risk) · Design
-
Design: parallel (raises risk) · Design
-
Number of arms: 3 (lowers risk) · Design
-
Disease area, cancer: No (lowers risk) · Disease area
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Trials the sponsor started in the prior 2 years: 6 (lowers risk) · Sponsor's track record
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Minimum age: 18 (raises risk) · Who can join
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Sponsor type: industry (lowers risk) · Sponsor's track record
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Sponsor's past trials: 0 (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
- 2
- Number of arms
- 3 (typical: 2)
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- prevention (typical: treatment)
- Blinding
- triple (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 1 (typical: 0)
- Keywords listed
- 11 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- 70 (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
- 0 (typical: 32)
- Sponsor's past termination rate
- no earlier finished trials (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 6 (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, Tolerability and Immunogenicity Study of 3 Prime-boost Regimens for Ebola Vaccines Ad26.ZEBOV/MVA-BN-Filo in Healthy Adults, Children and Human Immunodeficiency Virus Positive (HIV+) Adults NCT02564523 · started 2015 · scored riskier than 1% of active trials completed
- A Study to Assess Safety, Tolerability, and Immunogenicity of Three Heterologus 2-dose Regimens of the Candidate Prophylactic Vaccines for Ebola in Healthy Adults NCT02416453 · started 2015 · scored riskier than 3% of active trials completed
- A Study of 2-dose Vaccine Regimen Using 3 Consecutive Lots of Ad26.ZEBOV and MVA-BN-Filo in Adult Participants NCT04228783 · started 2020 · scored riskier than 1% of active trials completed
- A Study to Evaluate the Safety and Immunogenicity of Heterologous Prime-Boost Ebola Vaccine Regimens in Healthy Participants NCT02376426 · started 2015 · scored riskier than 1% of active trials completed
- A Study to Assess the Safety and Immunogenicity of Heterologous Prime-Boost Ebola Vaccine Regimens in Healthy Participants NCT02376400 · started 2015 · scored riskier than 1% 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.