Maternal Pertussis Wholecell Responses
Model scores of the 29,894 trials active now.
Model score 5% for any early termination, 2% 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 in 2015 or later: the model never saw it during training.
How it ended
Completed on 2023-06-30, after 2020-10-21 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 2023-06-30. 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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Accepts healthy volunteers: Yes (lowers risk) · Who can join
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: pregnancydiabetesgreaterantibodystage
Phrases that lowered it: vaccinevaccinationvaccinesimmunogenicityreceipt -
Sponsor's past termination rate: 22.9% (raises risk) · Sponsor's track record
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Collaborators: 5 (lowers risk) · Design
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Phase: 2 (raises risk) · Design
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Primary purpose: prevention (lowers risk) · Design
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Design: factorial (lowers risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Blinding: quadruple (lowers risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Number of arms: 4 (lowers risk) · Design
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Has a data monitoring committee: Yes (raises risk) · Design
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Maximum age: not given (raises risk) · Who can join
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Minimum age: 18 (raises risk) · Who can join
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Trials the sponsor started in the prior 2 years: 5 (lowers risk) · Sponsor's track record
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Drug's FAERS reports before start: 0 (lowers risk) · Drug's FDA history
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
- 4 (typical: 2)
- Allocation
- randomized
- Design
- factorial (typical: parallel)
- Primary purpose
- prevention (typical: treatment)
- Blinding
- quadruple (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 5 (typical: 0)
- Keywords listed
- 7 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- not given (typical: 71)
- Sex
- female (typical: all)
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- academic or other
- Sponsor's past trials
- 35 (typical: 32)
- Sponsor's past termination rate
- 22.9% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 5 (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
- Pertussis Vaccine in Healthy Pregnant Women NCT00707148 · started 2009 · scored riskier than 2% of active trials completed
- A Study on the Safety and Immune Response to an Unadjuvanted RSV Maternal Vaccine, in High Risk Pregnant Women Aged 15 to 49 Years and Infants Born to the Vaccinated Mothers NCT04980391 · started 2021 · scored riskier than 2% of active trials terminated
- Maternal Tdap Immunization in Guatemala NCT02301702 · started 2016 · scored riskier than 5% of active trials completed
- Study on the Safety and Immunogenicity of Boostrix Vaccine in Pregnant Malian Women and Their Infants NCT03589768 · started 2019 · scored riskier than 1% of active trials completed
- A Phase III, Double-blind Study to Assess Safety and Efficacy of an RSV Maternal Unadjuvanted Vaccine, in Pregnant Women and Infants Born to Vaccinated Mothers NCT04605159 · started 2020 · scored riskier than 2% of active trials terminated
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.