Research Study Investigating How Well NDec Works in People With Sickle Cell Disease
Model scores of the 29,894 trials active now.
Model score 18% for any early termination, 3% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 25% of the time (96 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2025-07-24, after 2022-07-07 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 2025-07-24. 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: cellpatientspatientcounttherapy
Phrases that lowered it: visitparticipantsmaleplaceboinclusive -
Accepts healthy volunteers: No (raises risk) · Who can join
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Phase: 2 (raises risk) · Design
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Has a data monitoring committee: Yes (raises risk) · Design
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Sponsor's past trials: 770 (raises risk) · Sponsor's track record
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Blinding: quadruple (lowers risk) · Design
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Design: parallel (raises risk) · Design
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Trials the sponsor started in the prior 2 years: 79 (lowers risk) · Sponsor's track record
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Sponsor's past termination rate: 4.8% (lowers risk) · Sponsor's track record
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Number of arms: 6 (lowers risk) · Design
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Drug's FAERS reports with a death: 18.8% (lowers risk) · Drug's FDA history
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Disease area, cancer: No (lowers risk) · Disease area
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Minimum age: 18 (raises risk) · Who can join
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Primary purpose: treatment (raises risk) · Design
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Sponsor type: industry (lowers risk) · Sponsor's track record
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Drug's FAERS reports marked serious: 80.8% (lowers risk) · Drug's FDA history
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Maximum age: not given (raises risk) · Who can join
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
- 2
- Number of arms
- 6 (typical: 2)
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- treatment
- Blinding
- quadruple (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
- not given (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
- 770 (typical: 32)
- Sponsor's past termination rate
- 4.8% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 79 (typical: 19)
Drug's FDA history
- Drugs with FDA adverse-event history
- 3 (typical: 1)
- Drug has FAERS history
- Yes (typical: 64% yes)
- Drug's FAERS reports before start
- 20041 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 2492 (typical: 412.5)
- Drug's FAERS reports marked serious
- 80.8% (typical: 85.6%)
- Drug's FAERS reports with a death
- 18.8% (typical: 15.9%)
Disease area and drugs
- Disease areas
- hematology
- Drugs matched to FDA substances
- decitabine, hydroxyurea, tetrahydrouridine
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
- A Study to Test How Either a Capsule or a Tablet With NDec (Decitabine and Tetrahydrouridine) Works in the Body of Healthy People NCT06291285 · started 2024 · scored riskier than 1% of active trials completed
- Study of Decitabine and Tetrahydrouridine (THU) in Patients With Sickle Cell Disease NCT01685515 · started 2012 · scored riskier than 98% of active trials completed
- Decitabine for High-Risk Sickle Cell Disease NCT01375608 · started 2011 · scored riskier than 66% of active trials completed
- A Study to Investigate the Safety, Tolerability, and Pharmacokinetics of Oral GSK4172239D Compared With Placebo in Sickle Cell Disease Participants Aged 18 to 50 Years NCT05660265 · started 2023 · scored riskier than 16% of active trials terminated
- Assessment of Algorithm-Based Hydroxyurea Dosing on Fetal Hemoglobin Response, Acute Complications, and Organ Function in People With Sickle Cell Disease NCT02225132 · started 2014 · scored riskier than 61% 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.