A 24-weeks, Multi-center, Randomized, Double-blind, Placebo Controlled Study to Evaluate the Efficacy and Safety of Donepezil Hydrochloride in Chinese Subjects With Severe Alzheimer's Disease
Model scores of the 29,894 trials active now.
Model score 23% for any early termination, 4% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 15% of the time (734 trials).
Finished trial that started 2008–2014: scored by a model trained without any trial from its start year, so its own outcome was never used.
How it ended
Completed on 2014-09-30, after 2011-09-30 start.
The score above never used this outcome: finished trial that started 2008–2014: scored by a model trained without any trial from its start year, so its own outcome was never used.
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 2014-09-30. 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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Wording of the registration (title, summary, criteria) (raises risk) · Wording
Phrases that raised it: alzheimeraddementiadiseaseplacebo
Phrases that lowered it: tabletsscreeningand safetyinclusiveefficacy and -
Sponsor's past termination rate: 35.3% (raises risk) · Sponsor's track record
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Accepts healthy volunteers: No (raises risk) · Who can join
-
Disease area, neurology: Yes (raises risk) · Disease area
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Phase: 3 (lowers risk) · Design
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Design: parallel (raises risk) · Design
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Has a data monitoring committee: not given (lowers risk) · Design
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Disease area, psychiatry: Yes (raises risk) · Disease area
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Sponsor type: industry (lowers risk) · Sponsor's track record
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Blinding: quadruple (lowers risk) · Design
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Minimum age: 50 (raises risk) · Who can join
-
Maximum age: 90 (raises risk) · Who can join
-
Drug's FAERS reports with a death: 14.1% (lowers risk) · Drug's FDA history
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Sponsor's past trials: 17 (lowers risk) · Sponsor's track record
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Collaborators: 0 (raises risk) · Design
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Number of arms: 2 (raises risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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
- 3 (typical: 2)
- Number of arms
- 2
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- treatment
- Blinding
- quadruple (typical: none)
- Has a data monitoring committee
- not given (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 14 (typical: 1)
Who can join
- Minimum age
- 50 (typical: 18)
- Maximum age
- 90 (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
- 17 (typical: 32)
- Sponsor's past termination rate
- 35.3% (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
- 1
- Drug has FAERS history
- Yes (typical: 64% yes)
- Drug's FAERS reports before start
- 7198 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 1138 (typical: 412.5)
- Drug's FAERS reports marked serious
- 76.0% (typical: 85.6%)
- Drug's FAERS reports with a death
- 14.1% (typical: 15.9%)
Disease area and drugs
- Disease areas
- neurology, psychiatry
- Drugs matched to FDA substances
- donepezil
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
- Compare the Efficacy and Safety of Donepezil Hydrochloride 23 mg Treatment With Continuation of Donepezil Hydrochloride 10 mg Treatment in Japanese Subjects With Severe Alzheimer's Disease NCT01539031 · started 2012 · scored riskier than 64% of active trials completed
- A Study to Test the Performance of the CogState Computerized Neuropsychological Battery in Patients With Alzheimer's Disease (0000-086)(COMPLETED) NCT00777608 · started 2008 · scored riskier than 40% of active trials completed
- Optimal Dose Escalation Strategy to Successful Achievement of High Dose Donepezil 23mg NCT02550665 · started 2014 · scored riskier than 13% of active trials completed
- Efficacy and Safety of Wei Li Bai Capsules in the Treatment of Alzheimer's Disease NCT05670912 · started 2022 · scored riskier than 31% of active trials terminated
- Study of DHP1401 in Patients With Mild-moderate Alzheimer's Disease Treated With Donepezil(DRAMA) NCT03055741 · started 2016 · scored riskier than 27% 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.