A Study to Evaluate the Efficacy and Safety of Therapeutic Hepatitis B Vaccine
Model scores of the 29,894 trials active now.
Model score 13% for any early termination, 3% 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 2023-12-04, after 2020-02-19 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 2023-12-04. 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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Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
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Accepts healthy volunteers: No (raises risk) · Who can join
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Wording of the registration (title, summary, criteria) (raises risk) · Wording
Phrases that raised it: patientsfailureulnhearttumors
Phrases that lowered it: screeningalcoholclinical trialinvestigatorto evaluate -
Phase: 2 (raises risk) · Design
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Minimum age: 19 (lowers risk) · Who can join
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Design: parallel (raises risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Trials the sponsor started in the prior 2 years: 0 (raises risk) · Sponsor's track record
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Blinding: quadruple (lowers risk) · Design
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Has a data monitoring committee: No (lowers risk) · Design
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Maximum age: 60 (lowers risk) · Who can join
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Primary purpose: treatment (raises risk) · Design
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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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Number of arms: 2 (raises risk) · Design
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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
- 2
- Number of arms
- 2
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- treatment
- Blinding
- quadruple (typical: none)
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 0 (typical: 1)
Who can join
- Minimum age
- 19 (typical: 18)
- Maximum age
- 60 (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
- 2 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 0 (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, digestive
- 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
- A Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Prophylactic Hepatitis B Vaccine NCT06147895 · started 2021 · scored riskier than 3% of active trials completed
- A Clinical Study of 162 in Subjects With Chronic Hepatitis B Virus Infection NCT06159062 · started 2024 · scored riskier than 47% of active trials terminated
- Safety and Efficacy of Therapeutic Hepatitis B Adenovirus Injection (T101) in Chronic Hepatitis B Patients NCT04168333 · started 2018 · scored riskier than 6% of active trials completed
- A Study on the Safety, Efficacy and Immune Response Following Sequential Treatment With an Anti-sense Oligonucleotide Against Chronic Hepatitis B (CHB) and Chronic Hepatitis B Targeted Immunotherapy (CHB-TI) in CHB Patients Receiving Nucleos(t)Ide Analogue (NA) Therapy NCT05276297 · started 2022 · scored riskier than 10% of active trials completed
- A Study Evaluating Treatment Regimens Containing Vebicorvir (ABI-H0731) in Participants With Chronic Hepatitis B Infection NCT04820686 · started 2021 · scored riskier than 25% 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.