Phase 1 Study to Determine the Effects of PBT2 on the Pharmacokinetic Profile of Caffeine
Model scores of the 29,894 trials active now.
Model score 4% 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 5% of the time (4,470 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 2014-07-31, after 2014-05-31 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 2014-07-31. 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: to determinesignificantdetermine theabnormalitiesclinically
Phrases that lowered it: healthyvolunteerscaffeineeffect ofthe effect -
Accepts healthy volunteers: Yes (lowers risk) · Who can join
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Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
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Phase: 1 (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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Sponsor type: industry (lowers risk) · Sponsor's track record
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Disease area, psychiatry: No (lowers risk) · Disease area
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Minimum age: 18 (raises risk) · Who can join
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Trials the sponsor started in the prior 2 years: 0 (raises risk) · Sponsor's track record
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Maximum age: 45 (lowers risk) · Who can join
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Has a data monitoring committee: No (lowers risk) · Design
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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Blinding: none (raises 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.
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
- basic science (typical: treatment)
- Blinding
- 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
- 18
- Maximum age
- 45 (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
- 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
- none of the 14 tracked areas
- 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
- Phase 1 Study to Determine the Effects of Food on the Pharmacokinetic Profile of PBT2 NCT02107313 · started 2014 · scored riskier than 1% of active trials completed
- Absorption, Metabolism and Excretion Study of [14C]PBT2 and Absolute Bioavailability of PBT2 NCT02249728 · started 2014 · scored riskier than 1% of active trials completed
- A Pharmacokinetic Study of an Experimental Paracetamol Formulation NCT01476176 · started 2009 · scored riskier than 0% of active trials completed
- A Study to Assess the Effect of Food on the Absorption and Bioavailability of PBI-200 NCT05160389 · started 2021 · scored riskier than 0% of active trials completed
- Effect of Phenytoin or Itraconazole on How BGB-16673 is Absorbed and Removed From the Body in Healthy Participants NCT06906809 · started 2025 · scored riskier than 0% 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.