Ephedrine and Phenylephrine for Spinal Hypotension
Model scores of the 29,894 trials active now.
Model score 9% 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 10% of the time (273 trials).
Finished trial that started in 2015 or later: the model never saw it during training.
How it ended
Completed on 2020-03-30, after 2017-02-07 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 2020-03-30. 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
-
Sponsor's past termination rate: 0% (lowers risk) · Sponsor's track record
-
Wording of the registration (title, summary, criteria) (raises risk) · Wording
Phrases that raised it: leftheartfailurespinalincrease
Phrases that lowered it: effectclinicalanesthesiacomparedsitting -
Accepts healthy volunteers: No (raises risk) · Who can join
-
Minimum age: 20 (lowers risk) · Who can join
-
Drug's FAERS reports marked serious: 60.6% (lowers risk) · Drug's FDA history
-
Primary purpose: prevention (lowers risk) · Design
-
Trials the sponsor started in the prior 2 years: 186 (lowers risk) · Sponsor's track record
-
Responsible party: principal investigator (lowers risk) · Design
-
Drug's FAERS reports with a death: 8.2% (lowers risk) · Drug's FDA history
-
Has a data monitoring committee: Yes (raises risk) · Design
-
Disease area, cancer: No (lowers risk) · Disease area
-
Design: parallel (raises risk) · Design
-
Sponsor type: academic or other (raises risk) · Sponsor's track record
-
Phase: 2/3 (raises risk) · Design
-
Blinding: double (raises risk) · Design
-
Number of arms: 2 (raises risk) · Design
-
Sponsor's past trials: 104 (lowers risk) · Sponsor's track record
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
- 2/3 (typical: 2)
- Number of arms
- 2
- Allocation
- randomized
- Design
- parallel
- Primary purpose
- prevention (typical: treatment)
- Blinding
- double (typical: none)
- Has a data monitoring committee
- Yes (typical: 56% yes)
- Responsible party
- principal investigator (typical: sponsor)
- Collaborators
- 0
- Keywords listed
- 5 (typical: 1)
Who can join
- Minimum age
- 20 (typical: 18)
- Maximum age
- 35 (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
- 104 (typical: 32)
- Sponsor's past termination rate
- 0% (typical: 9.9%)
- Trials the sponsor started in the prior 2 years
- 186 (typical: 19)
Drug's FDA history
- Drugs with FDA adverse-event history
- 2 (typical: 1)
- Drug has FAERS history
- Yes (typical: 64% yes)
- Drug's FAERS reports before start
- 79829 (typical: 2148)
- Drug's FAERS reports in the prior 12 months
- 19517 (typical: 412.5)
- Drug's FAERS reports marked serious
- 60.6% (typical: 85.6%)
- Drug's FAERS reports with a death
- 8.2% (typical: 15.9%)
Disease area and drugs
- Disease areas
- none of the 14 tracked areas
- Drugs matched to FDA substances
- ephedrine, phenylephrine
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
- Effect of Adding a Low-Dose Epinephrine Bolus Prior to Infusion on Maternal Hemodynamic Stability During Cesarean Section NCT07480889 · started 2026 · scored riskier than 18% of active trials completed
- Comparison of Phenylephrine and Norepinephrine for Spinal-induced Hypotension NCT04789005 · started 2019 · scored riskier than 7% of active trials completed
- Impact of Pre-spinal Atropine on Post Spinal Hemodynamics and Cardiac Output Measured by Electrical Cardiometry in Caesarean Delivery NCT05658380 · started 2022 · scored riskier than 28% of active trials completed
- Phenylephrine and Hypotension During Spinal Anesthesia for Cesarean Section NCT02958215 · started 2016 · scored riskier than 8% of active trials completed
- Phenylephrine and Noradrenaline for Post Spinal Anesthesia Hypotension NCT03015857 · started 2017 · scored riskier than 8% 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.