Occupancy of Adenosine A2A Receptors Using the PET Radiotracer [18F]MNI-444
Model scores of the 29,894 trials active now.
Model score 5% 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 11% of the time (918 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2022-05-12, after 2021-06-24 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 2022-05-12. 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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Primary purpose: other (lowers risk) · Design
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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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Minimum age: 30 (lowers risk) · Who can join
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Design: single group (raises risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Has a data monitoring committee: No (lowers risk) · Design
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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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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Disease area, neurology: No (lowers risk) · Disease area
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Trials the sponsor started in the prior 2 years: 2 (raises risk) · Sponsor's track record
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: mribrainpetdiseasepd
Phrases that lowered it: participanthealthymaleparticipantsevaluate the -
Number of arms: 1 (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
- other (typical: treatment)
- Blinding
- none
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 1
Who can join
- Minimum age
- 30 (typical: 18)
- Maximum age
- not given (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- academic or other
- Sponsor's past trials
- 7 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 2 (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
- Proof of Mechanism Study to Evaluate Binding of Alfa-synuclein NCT05274568 · started 2022 · scored riskier than 4% of active trials completed
- Initial Investigation of [18F]P17-059 in Parkinson's Disease Patients and Healthy Volunteers NCT03903549 · started 2022 · scored riskier than 7% of active trials completed
- A Study to Assess Single and Multiple Doses of IkT-148009 in Healthy Elderly Participants and Parkinson's Patients NCT04350177 · started 2021 · scored riskier than 8% of active trials completed
- Study to Evaluate the Efficacy and Safety of Staccato Apomorphine (AZ-009) in Patients With Parkinson's Disease Experiencing OFF Episodes NCT05979415 · started 2023 · scored riskier than 12% of active trials terminated
- Ambroxol in Disease Modification in Parkinson Disease NCT02941822 · started 2016 · scored riskier than 21% 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.