A Randomized Clinical Trial of Oral Magnesium Supplementation in Pregnancy
Model scores of the 29,894 trials active now.
Model score 11% for any early termination, 6% for termination due to slow enrollment. Past trials like this one (phase, sponsor type and disease area, started 2008–2016) ended terminated 8% of the time (159 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 2015-12-31, after 2014-03-31 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 2015-12-31. 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: No (raises risk) · Who can join
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Sponsor's past termination rate: no earlier finished trials (lowers risk) · Sponsor's track record
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Wording of the registration (title, summary, criteria) (lowers risk) · Wording
Phrases that raised it: relevanttrialplacebobirthsafe
Phrases that lowered it: vascularlowhypertensivehighprevention -
Phase: 3 (lowers risk) · Design
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Blinding: triple (raises risk) · Design
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Design: parallel (raises risk) · Design
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Responsible party: principal investigator (lowers risk) · Design
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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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Has a data monitoring committee: Yes (raises risk) · Design
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Sponsor type: academic or other (raises risk) · Sponsor's track record
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Drug's FAERS reports marked serious: no FAERS history (raises risk) · Drug's FDA history
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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: 0 (lowers risk) · Sponsor's track record
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Primary purpose: prevention (lowers risk) · Design
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Maximum age: 40 (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
- 3 (typical: 2)
- Number of arms
- 2
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- prevention (typical: treatment)
- Blinding
- triple (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- principal investigator (typical: sponsor)
- Collaborators
- 0
- Keywords listed
- 2 (typical: 1)
Who can join
- Minimum age
- 18
- Maximum age
- 40 (typical: 71)
- Sex
- female (typical: all)
- Accepts healthy volunteers
- No (typical: 9% yes)
Sponsor's track record
- Sponsor type
- academic or other
- Sponsor's past trials
- 0 (typical: 32)
- Sponsor's past termination rate
- no earlier finished trials (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
- metabolic, urogenital
- 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
- Magnesium Sulphate for Preterm Birth (MASP Study) NCT01492608 · started 2011 · scored riskier than 64% of active trials completed
- Magnesium Sulfate During the Postpartum in Women With Severe Preeclampsia NCT02307201 · started 2014 · scored riskier than 11% of active trials completed
- New Magnesium Sulphate Protocol for Pre-eclampsia NCT01846156 · started 2013 · scored riskier than 10% of active trials completed
- Calcium Channel Blockers Compared to Magnesium Sulfate in Fetal Cerebral Blood Flow NCT02591004 · started 2015 · scored riskier than 6% of active trials completed
- Magnesium Sulfate in Pregnancy and Postpartum NCT02317146 · started 2013 · scored riskier than 11% 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.