Safety, Radiation Dosimetry, Biokinetics, and Effectiveness of [18F]MK3328 (MK-3328-001)
Model scores of the 29,894 trials active now.
Model score 8% 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 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
Completed on 2011-05-31, after 2009-08-31 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 2011-05-31. 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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Accepts healthy volunteers: Yes (lowers risk) · Who can join
-
Sponsor's past termination rate: 16.3% (raises 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: adradiationbrainarterystroke
Phrases that lowered it: healthyparticipantsmaleefficacyparticipant -
Minimum age: 50 (lowers risk) · Who can join
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Design: parallel (raises risk) · Design
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Disease area, neurology: Yes (raises risk) · Disease area
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Primary purpose: diagnostic (lowers risk) · Design
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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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Sponsor type: industry (lowers risk) · Sponsor's track record
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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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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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Sponsor's past trials: 571 (raises risk) · Sponsor's track record
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Number of arms: 3 (lowers risk) · Design
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Trials the sponsor started in the prior 2 years: 271 (raises 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
- 3 (typical: 2)
- Allocation
- non randomized (typical: randomized)
- Design
- parallel
- Primary purpose
- diagnostic (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
- 50 (typical: 18)
- Maximum age
- not given (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
- 571 (typical: 32)
- Sponsor's past termination rate
- 16.3% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 271 (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
- [18F]MK-3328 as a Possible Novel Positron Emission Tomography (PET) Tracer for the Detection of Brain Amyloid Plaques (MK-3328-002) NCT01385033 · started 2011 · scored riskier than 35% of active trials terminated
- [18F]MK-6240 Positron Emission Tomography (PET) Tracer First-in-Human Validation Study (MK-6240-001) NCT02562989 · started 2015 · scored riskier than 23% of active trials completed
- A Study to Investigate the Regional Brain Kinetics of Brain Drug Transporters Using P-glycoprotein and Breast Cancer Resistance Protein Substrates and by Using the Positron Emission Tomography Ligand 11C-JNJ-63779586 in the Human Brain NCT03089918 · started 2017 · scored riskier than 6% of active trials completed
- Positron Emission Tomography (PET) Study With [11C]AZD2995 and [11C]AZD2184, Candidate PET Ligands for β Amyloid NCT00692705 · started 2008 · scored riskier than 4% of active trials completed
- Positron Emission Tomography (PET) Study With [18F]AZD4694 and [11C]AZD2184, Candidate PET Ligands for Aβ Amyloid NCT00838877 · started 2009 · scored riskier than 9% 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.