Study Designed to Assess the Safety, Tolerability and PK of PTI-808 in Healthy Volunteers and in Adults With Cystic Fibrosis
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 16% of the time (257 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2019-12-23, after 2017-07-17 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 2019-12-23. 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: cancersubjectpriorchronictherapy
Phrases that lowered it: healthyvolunteersadultsinglegenotype -
Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
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Phase: 1/2 (raises risk) · Design
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Has a data monitoring committee: Yes (raises risk) · Design
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Maximum age: 99 (lowers risk) · Who can join
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Number of arms: 15 (lowers risk) · Design
-
Blinding: triple (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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Primary purpose: treatment (raises risk) · Design
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Sponsor's past trials: 1 (lowers risk) · Sponsor's track record
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Minimum age: 18 (raises 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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Trials the sponsor started in the prior 2 years: 3 (raises risk) · Sponsor's track record
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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
- 1/2 (typical: 2)
- Number of arms
- 15 (typical: 2)
- Allocation
- randomized
- Design
- sequential (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
- 0 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- 99 (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
- 1 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 3 (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
- Study Assessing the Safety, Tolerability, Pharmacokinetics, Food Effect, and Drug-Drug Interactions of PTI-801 in Healthy Volunteers, and Safety, Tolerability, and Pharmacokinetics of PTI-801 in Subjects With Cystic Fibrosis NCT03140527 · started 2017 · scored riskier than 6% of active trials completed
- 28 Day Repeat Dose in Cystic Fibrosis Patients NCT00903201 · started 2009 · scored riskier than 27% of active trials completed
- Clinical Trial to Evaluate the Efficacy and Safety of Dirocaftor/Posenacaftor/Nesolicaftor in Adults With CF NCT06468527 · started 2024 · scored riskier than 14% of active trials completed
- A Study to Assess the Safety, Tolerability and PK Profile of FDL176 in Healthy and CF Participants NCT03173573 · started 2017 · scored riskier than 4% of active trials completed
- Inhaled Vancomycin Tolerability, Safety and Pharmacokinetics NCT01537666 · started 2011 · scored riskier than 3% 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.