SAD/MAD Study of a New Formulation of Nebulised RPL554 in Healthy Subjects and COPD Subjects
Model scores of the 29,894 trials active now.
Model score 6% 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 6% of the time (355 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 2015-07-31, after 2014-12-31 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 2015-07-31. 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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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: lungsubjects withdiagnosissurgerydefined
Phrases that lowered it: healthybloodalcoholhcvmmhg -
Phase: 1 (lowers risk) · Design
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Sponsor's past termination rate: no earlier finished trials (lowers risk) · Sponsor's track record
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Design: single group (raises risk) · Design
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Has a data monitoring committee: Yes (raises risk) · Design
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Maximum age: 75 (raises risk) · Who can join
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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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Blinding: triple (raises risk) · Design
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Sponsor type: industry (lowers risk) · Sponsor's track record
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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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Primary purpose: treatment (raises risk) · Design
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Disease area, cancer: No (lowers risk) · Disease area
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Disease area, psychiatry: No (lowers risk) · Disease area
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Keywords listed: 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
- 2
- Allocation
- randomized
- Design
- single group (typical: parallel)
- Primary purpose
- treatment
- Blinding
- triple (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 1
Who can join
- Minimum age
- 18
- Maximum age
- 75 (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
- 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
- respiratory
- Drugs matched to FDA substances
- ensifentrine
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
- Safety, Tolerability and Pharmacokinetics (PK) of RV1162 in Healthy Subjects and COPD Patients NCT01970618 · started 2013 · scored riskier than 4% of active trials completed
- Bronchodilator Effect of RPL554 Administered in Addition to Tiotropium/Olodaterol in Patients With COPD NCT03673670 · started 2018 · scored riskier than 5% of active trials completed
- The Effects of RPL554 in Addition to Tiotropium in COPD Patients NCT03028142 · started 2017 · scored riskier than 5% of active trials completed
- Study Investigating the Effect of 4 Doses of RPL554 Given in Addition to Tiotropium to Patients With COPD NCT03937479 · started 2019 · scored riskier than 12% of active trials completed
- Study Evaluating 5 Doses of RPL554 and Placebo in COPD Patients Via a Dry Powder Inhaler NCT04027439 · started 2018 · scored riskier than 8% 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.