Acalabrutinib Safety Study in Untreated and Relapsed or Refractory Chronic Lymphocytic Leukemia Patients
Model scores of the 29,894 trials active now.
Model score 13% 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 16% of the time (927 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2025-11-04, after 2019-09-17 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 2025-11-04. 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: cellbowelcellsinterventiondisease
Phrases that lowered it: participantsparticipantleukemiaopen labelaminotransferase -
Accepts healthy volunteers: No (raises risk) · Who can join
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Phase: 3 (lowers risk) · Design
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Maximum age: 130 (lowers risk) · Who can join
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Trials the sponsor started in the prior 2 years: 134 (lowers risk) · Sponsor's track record
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Design: single group (raises risk) · Design
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Drug's FAERS reports with a death: 14.9% (lowers risk) · Drug's FDA history
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Disease area, cancer: Yes (raises risk) · Disease area
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Sponsor's past trials: 1566 (raises risk) · Sponsor's track record
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Has a data monitoring committee: No (lowers 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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Primary purpose: treatment (raises risk) · Design
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Drug's FAERS reports marked serious: 72.5% (lowers risk) · Drug's FDA history
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Number of arms: 1 (raises risk) · Design
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Collaborators: 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
- 3 (typical: 2)
- Number of arms
- 1 (typical: 2)
- Allocation
- non randomized (typical: randomized)
- Design
- single group (typical: parallel)
- Primary purpose
- treatment
- Blinding
- none
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 1 (typical: 0)
- Keywords listed
- 2 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- 130 (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
- 1566 (typical: 32)
- Sponsor's past termination rate
- 7.9% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 134 (typical: 19)
Drug's FDA history
- Drugs with FDA adverse-event history
- 1
- Drug has FAERS history
- Yes (typical: 64% yes)
- Drug's FAERS reports before start
- 349 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 167 (typical: 412.5)
- Drug's FAERS reports marked serious
- 72.5% (typical: 85.6%)
- Drug's FAERS reports with a death
- 14.9% (typical: 15.9%)
Disease area and drugs
- Disease areas
- cancer, immunology, hematology
- Drugs matched to FDA substances
- acalabrutinib
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
- Acalabrutinib in Combination With Anti-CD20 and Venetoclax in Relapsed/Refractory or Untreated CLL/SLL/PLL NCT02296918 · started 2014 · scored riskier than 26% of active trials completed
- Ibrutinib as Early Therapy in Chronic Lymphocytic Leukemia (CLL) NCT03207555 · started 2018 · scored riskier than 83% of active trials completed
- Study to Investigate the Use of Acalabrutinib in the Treatment of Patients With Chronic Lymphocytic Leukemia NCT04178798 · started 2019 · scored riskier than 37% of active trials completed
- Acalabrutinib and High Frequency Low Dose Subcutaneous Rituximab in Patients With Previously Untreated Chronic Lymphocytic Leukemia / Small Lymphocytic Lymphoma NCT03788291 · started 2019 · scored riskier than 90% of active trials completed
- DNA Plasmid Encoding a Modified Human Telomerase Reverse Transcriptase (hTERT), Invac-1 in Chronic Lymphocytic Leukemia NCT03265717 · started 2018 · scored riskier than 82% of active trials terminated
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.