Evaluation of Imaging Characteristics of [18F]PI-2620 PET in AD and PSP Patients Using High and Low Specific Activity
Model scores of the 29,894 trials active now.
Model score 11% 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 8% of the time (544 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2022-10-26, after 2020-11-12 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 2022-10-26. 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: No (raises risk) · Who can join
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Sponsor's past termination rate: no earlier finished trials (lowers risk) · Sponsor's track record
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Phase: 1 (lowers risk) · Design
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: effectivepriorpotential mustpatients mustcns
Phrases that lowered it: mildpetevaluate thepressureto evaluate -
Minimum age: 50 (lowers risk) · Who can join
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Disease area, neurology: Yes (raises risk) · Disease area
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Has a data monitoring committee: Yes (raises risk) · Design
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Primary purpose: diagnostic (lowers risk) · Design
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Design: single group (raises risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Trials the sponsor started in the prior 2 years: 0 (raises risk) · Sponsor's track record
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Disease area, psychiatry: Yes (raises risk) · Disease area
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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Sponsor type: industry (lowers risk) · Sponsor's track record
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Number of arms: 1 (raises risk) · Design
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Collaborators: 1 (raises risk) · Design
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Sponsor's past trials: 0 (lowers risk) · Sponsor's track record
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
- 1 (typical: 2)
- Allocation
- not applicable (typical: randomized)
- Design
- single group (typical: parallel)
- Primary purpose
- diagnostic (typical: treatment)
- Blinding
- none
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 1 (typical: 0)
- Keywords listed
- 6 (typical: 1)
Who can join
- Minimum age
- 50 (typical: 18)
- Maximum age
- 80 (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
- 0 (typical: 32)
- Sponsor's past termination rate
- no earlier finished trials (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
- neurology, psychiatry
- 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
- Test-retest Study With [18F]PI-2620 in PSP-RS and NDC NCT05187546 · started 2022 · scored riskier than 8% of active trials completed
- Phase 1 Test-retest Evaluation of [18F]MNI-958 PET NCT03545789 · started 2018 · scored riskier than 25% of active trials completed
- Longitudinal Changes of [18F]PI-2620 Positron Emission Tomography in Subjects With Cognitively Normal, Mild Cognitive Impairment and Alzheimer's Disease NCT03903211 · started 2019 · scored riskier than 20% of active trials completed
- A Longitudinal Evaluation of a Radiotracer for Use in Tau Tracking NCT03919669 · started 2019 · scored riskier than 46% of active trials completed
- Evaluation Comparing Tau PET Radiotracers, [18F]GTP1 and [18F]PI-2620 or [18F]MK-6240 in Subjects With Normal Cognition or Prodromal to Moderate Alzheimer's Disease NCT04566003 · started 2020 · scored riskier than 56% 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.