A Study of BB-1701 in Previously Treated Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive or HER2-low Unresectable or Metastatic Breast Cancer
Model scores of the 29,894 trials active now.
Model score 28% for any early termination, 5% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 22% of the time (1,598 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2026-03-18, after 2024-04-10 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 2026-03-18. 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: her2breast cancermetastaticcompletedheart
Phrases that lowered it: participantcopiesviral loadevaluate theto evaluate -
Accepts healthy volunteers: No (raises risk) · Who can join
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Phase: 2 (raises risk) · Design
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Sponsor's past termination rate: 11.0% (raises risk) · Sponsor's track record
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Disease area, cancer: Yes (raises risk) · Disease area
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Number of arms: 4 (lowers risk) · Design
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Trials the sponsor started in the prior 2 years: 3 (raises risk) · Sponsor's track record
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Design: parallel (raises risk) · Design
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Drug's FAERS reports with a death: no FAERS history (raises risk) · Drug's FDA history
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Sponsor's past trials: 291 (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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Maximum age: not given (raises risk) · Who can join
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Disease area, dermatology: Yes (raises 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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Collaborators: 1 (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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Blinding: none (raises risk) · Design
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Responsible party: sponsor (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
- 2
- Number of arms
- 4 (typical: 2)
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- treatment
- Blinding
- none
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- sponsor
- Collaborators
- 1 (typical: 0)
- Keywords listed
- 5 (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
- 291 (typical: 32)
- Sponsor's past termination rate
- 11.0% (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
- cancer, dermatology
- 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
- A First-in-human Study of Multiple Doses of BB-1701 in Subjects With Locally Advanced/Metastatic HER2 Expressing Solid Tumors NCT04257110 · started 2020 · scored riskier than 19% of active trials completed
- PRS-343 in HER2-Positive Solid Tumors NCT03330561 · started 2017 · scored riskier than 30% of active trials completed
- A Study of U3-1402 (Patritumab Deruxtecan) in Subjects With Metastatic Breast Cancer NCT04699630 · started 2021 · scored riskier than 77% of active trials completed
- Efficacy and Tolerability of Eribulin Plus Lapatinib in Patients With Metastatic Breast Cancer (E-VITA) NCT01534455 · started 2012 · scored riskier than 88% of active trials terminated
- PRS-343 in Combination With Atezolizumab in HER2-Positive Solid Tumors NCT03650348 · started 2018 · scored riskier than 42% 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.