A Study to Test GlaxoSmithKline's (GSK) Herpes Zoster (HZ) Subunit Vaccine's Long-term Immune Response in Previously Vaccinated Kidney Transplant Adults and Then to Test if 2 Additional Doses of the Vaccine Are Safe and Able to Generate an Immune Response

Model scores of the 29,894 trials active now.

Model score 6% 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 (876 trials).

Finished trial that started in 2015 or later: the model never saw it during training.

Cumulative chance of ending terminated (red) or completed (green) by each year from its start; it actually ended on 2024-06-27. 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.

• Wording of the registration (title, summary, criteria) (lowers risk) · Wording Phrases that raised it: transplantprimarycelltherapyrejection
  Phrases that lowered it: vaccinevaccinationimmunogenicityadministrationand safety
• Accepts healthy volunteers: No (raises risk) · Who can join
• Primary purpose: prevention (lowers risk) · Design
• Phase: 3 (lowers risk) · Design
• Sponsor's past trials: 2602 (raises risk) · Sponsor's track record
• Sponsor's past termination rate: 6.9% (lowers risk) · Sponsor's track record
• Trials the sponsor started in the prior 2 years: 118 (lowers risk) · Sponsor's track record
• Design: single group (raises risk) · Design
• Has a data monitoring committee: No (lowers risk) · Design
• Disease area, cancer: No (lowers risk) · Disease area
• Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
• Sponsor type: industry (lowers risk) · Sponsor's track record
• Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
• Minimum age: 18 (raises risk) · Who can join
• Disease area, neurology: No (lowers risk) · Disease area
• Maximum age: not given (lowers risk) · Who can join
• Number of arms: 1 (raises risk) · Design
• Disease area, infectious disease: Yes (lowers risk) · Disease area
• Responsible party: sponsor (lowers risk) · Design

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.

• A Long-term Follow-up Study (ZOE-LTFU) of Two Studies 110390 (ZOSTER-006) and 113077 (ZOSTER-022) to Assess the Efficacy, Safety, and Immunogenicity Persistence of GSK Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine and Assessment of 1 or 2 Additional Doses in Two Subgroups of Older Adults NCT02723773 · started 2016 · scored riskier than 2% of active trials completed
• Study to Evaluate Immunogenicity and Safety of GSK Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine at 9 and 10 Years After Vaccine Administration and Assessment of Re-vaccination With 2 Additional Doses at 10 Years After Initial Vaccination, in Healthy Subjects Aged 60 Years of Age(YOA) and Older NCT02735915 · started 2016 · scored riskier than 2% of active trials completed
• Cross-vaccination Study of GSK Biologicals' Herpes Zoster Subunit (HZ/su) Vaccine (GSK 1437173A) in Subjects Who Previously Received Placebo in ZOSTER-006 (NCT01165177) and ZOSTER-022 (NCT01165229) Studies. NCT02690207 · started 2016 · scored riskier than 1% of active trials completed
• Safety and Immunogenicity Study of GlaxoSmithKline's Herpes Zoster Subunit Vaccine (HZ/su) When Given on a Two-dose Schedule to Adults at Least 50 Years of Age (YOA) With a Prior Episode of Herpes Zoster NCT04091451 · started 2019 · scored riskier than 1% of active trials completed
• Safety and Immunogenicity of Different Dosing Schedules of GlaxoSmithkline (GSK) Biologicals' Herpes Zoster (HZ) Vaccine in Adults 50 Years of Age or Older NCT01751165 · started 2013 · 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.