Can a smarter epidural pump reduce leg weakness during labor?
NCT ID NCT04011150
First seen Aug 14, 2026 · Last updated Aug 14, 2026
Summary
This trial tests a new epidural pump method for women in labor. The method, called variable volume automated mandatory boluses, delivers pain medication in a way that may spread the drug more evenly, potentially reducing leg weakness while still controlling pain. The study includes healthy first-time mothers at term with a single baby, who request an epidural. Researchers will compare this new method to standard care, looking at how often motor block occurs and whether it affects the need for assisted delivery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- An epidural infusion pump delivering a combination of ropivacaine (a local anesthetic) and fentanyl (an opioid) into the space around the spinal cord.
- What this could lead to
- If successful, this could lead to a more personalized epidural technique that reduces leg weakness during labor and lowers the chance of needing forceps or vacuum delivery.
- What could go wrong
- This is a single-hospital trial, and results may not apply to all settings. The new pump method might not reduce motor block or could have unforeseen effects on pain relief or delivery outcomes.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
-
197 people
The number who actually took part.
- Started
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Aug 2020
- Expected to finish
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Aug 2027
An estimate. End dates often move.
- Lead sponsor
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A government agency
The lead sponsor is a government body.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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21 to 50 years
- Sex
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Female participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Healthy (American Society of Anesthesiologists (ASA) physical status 1 and 2) primiparous parturient at term (≥36 weeks gestation); * Singleton fetus; * In early labor stage (cervical dilation ≤5cm); * Request labor epidural analgesia and able to administer combined spinal epidural analgesia (CSEA) according to protocol. Exclusion Criteria: * Non-cephalic fetal presentation; * Obstetric (e.g. pre-eclampsia, premature rupture of amniotic membranes for more than 48 hours, gestational diabetes on insulin, pregnancy-induced hypertension on medication) and uncontrolled medical (e.g. cardiac disease) complications; * Have contraindications to neuraxial blockade or have received parenteral opioids within last 2 hours; * Dural puncture/ suspected dural puncture at initiation of CSEA.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
KK Women's and Children's Hospital
Singapore, 229899, Singapore
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Other studies related to the condition(s) this trial covers.
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