A Study to Evaluate the Efficacy, Drug Levels and Safety of Luspatercept (ACE-536) for the Treatment of Anemia Due to IPSS-R Very Low, Low, or Intermediate Risk Myelodysplastic Syndromes in Chinese and Japanese Participants With Ring Sideroblasts Who Require Red Blood Cell Transfusions
Model scores of the 29,894 trials active now.
Model score 14% 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 2026-04-08, after 2020-11-30 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 2026-04-08. 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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Minimum age: 20 (lowers risk) · Who can join
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Phase: 2 (raises risk) · Design
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Sponsor's past termination rate: 13.9% (raises risk) · Sponsor's track record
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Wording of the registration (title, summary, criteria) (raises risk) · Wording
Phrases that raised it: refractorypriorcellagentscells
Phrases that lowered it: japanesebloodand safetysafety ofefficacy -
Accepts healthy volunteers: No (raises risk) · Who can join
-
Drug's FAERS reports marked serious: 52.5% (lowers risk) · Drug's FDA history
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Design: single group (raises risk) · Design
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Drug's FAERS reports with a death: 14.4% (lowers risk) · Drug's FDA history
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Trials the sponsor started in the prior 2 years: 47 (lowers risk) · Sponsor's track record
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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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Has a data monitoring committee: No (lowers risk) · Design
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Primary purpose: treatment (raises risk) · Design
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Number of arms: 1 (raises risk) · Design
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Sponsor's past trials: 208 (lowers risk) · Sponsor's track record
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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
- 1 (typical: 2)
- Allocation
- not applicable (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
- 0
- Keywords listed
- 5 (typical: 1)
Who can join
- Minimum age
- 20 (typical: 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
- 208 (typical: 32)
- Sponsor's past termination rate
- 13.9% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 47 (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
- 118 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 115 (typical: 412.5)
- Drug's FAERS reports marked serious
- 52.5% (typical: 85.6%)
- Drug's FAERS reports with a death
- 14.4% (typical: 15.9%)
Disease area and drugs
- Disease areas
- hematology
- Drugs matched to FDA substances
- luspatercept
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 of Luspatercept (ACE-536) to Treat Anemia Due to Very Low, Low, or Intermediate Risk Myelodysplastic Syndromes NCT02631070 · started 2016 · scored riskier than 95% of active trials completed
- Study of Luspatercept for the Treatment of Anemia in Patients With Myelodysplastic Syndrome (MDS) (MK-6143-001) NCT01749514 · started 2013 · scored riskier than 83% of active trials completed
- A Study Comparing Siltuximab Plus Best Supportive Care to Placebo Plus Best Supportive Care in Anemic Patients With International Prognostic Scoring System Low- or Intermediate-1-Risk Myelodysplastic Syndrome NCT01513317 · started 2011 · scored riskier than 80% of active trials terminated
- Efficacy and Safety of FG-4592 for Treatment of Anemia in Participants With Lower Risk Myelodysplastic Syndrome (MDS) NCT03303066 · started 2018 · scored riskier than 71% of active trials completed
- Efficacy and Safety of Roxadustat for Treatment of Anemia in Participants With Lower Risk Myelodysplastic Syndrome With Low Red Blood Cell Transfusion Burden NCT03263091 · started 2018 · scored riskier than 88% 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.