A Positron Emission Tomography (PET) Study to Investigate the Brain Biodistribution of 18F GSK2647544 in Healthy Subjects to Determine Its Ability to Cross the Blood-brain-barrier.
Model scores of the 29,894 trials active now.
Model score 5% 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 8% of the time (544 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
Terminated on 2014-03-03, after 2013-08-19 start.
Reason given by the sponsor: “other”
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 2014-03-03. 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: Yes (lowers risk) · Who can join
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: definedpetthe investigatorcardiacmri
Phrases that lowered it: healthyagreehoursmultipleblood -
Minimum age: 30 (lowers risk) · Who can join
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Sponsor's past termination rate: 5.1% (lowers risk) · Sponsor's track record
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Phase: 1 (lowers risk) · Design
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Sponsor's past trials: 1819 (raises risk) · Sponsor's track record
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Design: single group (raises risk) · Design
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Disease area, neurology: Yes (raises risk) · Disease area
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Primary purpose: treatment (raises risk) · Design
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Disease area, psychiatry: Yes (raises risk) · Disease area
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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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Trials the sponsor started in the prior 2 years: 323 (raises risk) · Sponsor's track record
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Has a data monitoring committee: No (lowers risk) · Design
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Blinding: none (lowers 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
- 1 (typical: 2)
- Number of arms
- 1 (typical: 2)
- Allocation
- not applicable (typical: randomized)
- Design
- single group (typical: parallel)
- Primary purpose
- treatment
- Blinding
- none
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 6 (typical: 1)
Who can join
- Minimum age
- 30 (typical: 18)
- Maximum age
- 55 (typical: 71)
- Sex
- male (typical: all)
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- industry (typical: academic or other)
- Sponsor's past trials
- 1819 (typical: 32)
- Sponsor's past termination rate
- 5.1% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 323 (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
- An Open Label Positron Emission Tomography Study in Healthy Male Subjects to Investigate Brain DAT and SERT Occupancy,Pharmacokinetics and Safety of Single Oral Doses of GSK1360707, Using 11C- PE2I and 11C-DASB as PET Ligands NCT01153802 · started 2009 · scored riskier than 9% of active trials completed
- A Repeat Dose Positron Emission Tomography Study With GSK1144814 NCT01209039 · started 2009 · scored riskier than 9% of active trials completed
- GSK2251052 Mass Balance in Healthy Adult Subjects NCT01475695 · started 2011 · scored riskier than 2% of active trials completed
- A Positron Emission Tomography Occupancy Study Using Ligand [11C]AS2471907 and Following Oral Dosing of ASP3662 NCT02194491 · started 2014 · scored riskier than 2% of active trials completed
- Study to Investigate the Receptor Occupancy of HTL0014242 Using [18F] FPEB in Healthy Male Subjects NCT04462263 · started 2020 · 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.