A Drug-drug Interaction Study to Investigate the Effects of AZD1981 on the Metabolism and Pharmacodynamics of Oral Contraceptives
Model scores of the 29,894 trials active now.
Model score 7% 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 5% of the time (4,470 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 2010-10-31, after 2010-05-31 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 2010-10-31. 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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Accepts healthy volunteers: Yes (lowers risk) · Who can join
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Design: crossover (lowers risk) · Design
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Trials the sponsor started in the prior 2 years: 373 (raises risk) · Sponsor's track record
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Phase: 1 (lowers risk) · Design
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Sponsor's past trials: 811 (raises risk) · Sponsor's track record
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Has a data monitoring committee: No (lowers risk) · Design
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Responsible party: not given (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 type: industry (lowers risk) · Sponsor's track record
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Disease area, cancer: No (lowers risk) · Disease area
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Blinding: double (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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Primary purpose: basic science (raises risk) · Design
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Minimum age: 18 (raises risk) · Who can join
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Disease area, neurology: No (lowers risk) · Disease area
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: placebodoubleto determinedetermine whethereffective
Phrases that lowered it: healthyinteractionvolunteerscrossoverdrug drug -
Maximum age: 45 (lowers 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
- 1 (typical: 2)
- Number of arms
- 2
- Allocation
- randomized
- Design
- crossover (typical: parallel)
- Primary purpose
- basic science (typical: treatment)
- Blinding
- double (typical: none)
- Has a data monitoring committee
- No (typical: 56% yes)
- Responsible party
- not given (typical: sponsor)
- Collaborators
- 0
- Keywords listed
- 4 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- 45 (typical: 71)
- Sex
- female (typical: all)
- Accepts healthy volunteers
- Yes (typical: 9% yes)
Sponsor's track record
- Sponsor type
- industry (typical: academic or other)
- Sponsor's past trials
- 811 (typical: 32)
- Sponsor's past termination rate
- 7.4% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 373 (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
- none of the 14 tracked areas
- 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
- AZD6140 Oral Contraceptive Interaction Study NCT00685906 · started 2008 · scored riskier than 2% of active trials completed
- A Bioavailability Study Comparing 3 Different AZD1981 Tablets NCT01311635 · started 2011 · scored riskier than 0% of active trials completed
- Study to Investigate Multiple Ascending Oral Doses of AZD5213 in Healthy Male and Non Fertile Female Subjects NCT01171105 · started 2010 · scored riskier than 38% of active trials completed
- Study to Investigate Safety, Tolerability and Pharmacokinetics of AZD2423 in Healthy Volunteers NCT00940212 · started 2009 · scored riskier than 14% of active trials completed
- Study to Evaluate Safety, Tolerability and Pharmacokinetics (PK) (Including Food Effect) of Oral Doses of AZD5847 in Healthy Volunteers NCT01037725 · started 2009 · scored riskier than 9% 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.