Study of the Safety, Pharmacokinetics and Efficacy of HPN-100, in Pediatric Subjects With Urea Cycle Disorders (UCDs)
Model scores of the 29,894 trials active now.
Model score 16% 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 15% of the time (734 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 2013-03-31, after 2011-07-31 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 2013-03-31. 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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Wording of the registration (title, summary, criteria) (raises risk) · Wording
Phrases that raised it: subjecttermcondition thattransplantdisorder
Phrases that lowered it: judgedpharmacokineticsclinicalcriteria malestudy was -
Accepts healthy volunteers: No (raises risk) · Who can join
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Sponsor's past termination rate: 5.2% (lowers risk) · Sponsor's track record
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Disease area, neurology: Yes (raises risk) · Disease area
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Phase: 3 (lowers risk) · Design
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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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Trials the sponsor started in the prior 2 years: 82 (lowers risk) · Sponsor's track record
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Sponsor's past trials: 213 (lowers risk) · Sponsor's track record
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Primary purpose: treatment (raises risk) · Design
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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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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Minimum age: 0.08 (lowers risk) · Who can join
-
Collaborators: 0 (raises risk) · Design
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Number of arms: 1 (raises risk) · Design
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Keywords listed: 6 (lowers 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
- 3 (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
- Yes (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 0
- Keywords listed
- 6 (typical: 1)
Who can join
- Minimum age
- 0.08 (typical: 18)
- Maximum age
- 6 (typical: 71)
- Sex
- all
- Accepts healthy volunteers
- No (typical: 9% yes)
Sponsor's track record
- Sponsor type
- industry (typical: academic or other)
- Sponsor's past trials
- 213 (typical: 32)
- Sponsor's past termination rate
- 5.2% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 82 (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, metabolic
- Drugs matched to FDA substances
- glycerol phenylbutyrate
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 of the Safety and Tolerability of HPN-100 Compared to Sodium Phenylbutyrate in Children With Urea Cycle Disorders NCT00947544 · started 2010 · scored riskier than 61% of active trials completed
- Study of the Safety of HPN (Hyperion)-100 for the Long-Term Treatment of Urea Cycle Disorders (Treat UCD) NCT00947297 · started 2009 · scored riskier than 62% of active trials completed
- Efficacy and Safety of HPN-100 for the Treatment of Adults With Urea Cycle Disorders NCT00992459 · started 2009 · scored riskier than 16% of active trials completed
- UNLOCKED: A Phase 2, Open-label Trial With KB195 in Subjects With a Urea Cycle Disorder NCT03933410 · started 2019 · scored riskier than 21% of active trials terminated
- A Study of Safety and Efficacy of HPN-100 in Subjects With Cirrhosis and Episodic Hepatic Encephalopathy NCT00999167 · started 2009 · scored riskier than 39% 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.