Safety, Reactogenicity, and Immunogenicity Trial of CV2CoV mRNA Vaccine Against SARS-CoV-2 in Seropositive Adult Participants
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 (776 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2023-03-07, after 2022-03-24 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 2023-03-07. 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: diseasetransplantchronicdiagnosiscell
Phrases that lowered it: vaccinevaccinationparticipantparticipantsinfluenza -
Accepts healthy volunteers: Yes (lowers risk) · Who can join
-
Primary purpose: prevention (lowers risk) · Design
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Phase: 1 (lowers risk) · Design
-
Sponsor's past trials: 2685 (raises risk) · Sponsor's track record
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Has a data monitoring committee: not given (lowers risk) · Design
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Trials the sponsor started in the prior 2 years: 96 (lowers risk) · Sponsor's track record
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Sponsor type: industry (lowers risk) · Sponsor's track record
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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, cancer: No (lowers risk) · Disease area
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Number of arms: 6 (lowers risk) · Design
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Minimum age: 18 (raises risk) · Who can join
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Drug's FAERS reports marked serious: no FAERS history (raises 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
- 1 (typical: 2)
- Number of arms
- 6 (typical: 2)
- Allocation
- non randomized (typical: randomized)
- Design
- sequential (typical: parallel)
- Primary purpose
- prevention (typical: treatment)
- Blinding
- none
- Has a data monitoring committee
- not given (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 1 (typical: 0)
- Keywords listed
- 3 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- not given (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
- 2685 (typical: 32)
- Sponsor's past termination rate
- 7.1% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 96 (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 Immunogenicity Study of a Booster Dose of the Investigational CV0501 mRNA COVID-19 Vaccine in Adults at Least 18 Years Old NCT05477186 · started 2022 · scored riskier than 1% of active trials completed
- A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy Adults NCT05972993 · started 2023 · scored riskier than 3% of active trials completed
- A Study Assessing the Safety, Tolerability, Immunogenicity of COVID-19 Vaccine Candidate PRIME-2-CoV_Beta, Orf Virus Expressing SARS-CoV_2 Spike and Nucleocapsid Proteins NCT05367843 · started 2022 · scored riskier than 3% of active trials terminated
- A Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVID-19 NCT04449276 · started 2020 · scored riskier than 2% of active trials completed
- A Dose-Confirmation Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Vaccine CVnCoV in Healthy Adults for COVID-19 NCT04515147 · started 2020 · scored riskier than 3% 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.