PIEB vs CEI for Labor Analgesia: An MLAC Study

Trial ID or NCT#



not recruiting iconNOT RECRUITING


Utilizing a 'minimal local analgesic concentration (MLAC) study' design to first determine the relative potency of Programmed Intermittent Epidural Bolus (PIEB) compared to Continuous Epidural Infusion (CEI) and secondly to determine the mechanism to explain the potential PIEB efficacy advantage.

Official Title

Programmed Intermittent Epidural Bolus (PIEB) Compared to Continuous Epidural Infusion (CEI) Relative Efficacy and Mechanism of Efficacy For Labor Anlagesia: A Minimal Local Analgesic Concentration (MLAC) Study

Eligibility Criteria

Ages Eligible for Study: 18 Years to 45 Years
Sexes Eligible for Study: Female
Accepts Healthy Volunteers: No
Inclusion Criteria:
  1. - ASA I & II, Nulliparous and Multiparous, Spontaneous/Induced/Augmented Labor, Early active labor (cervix <5 cm (if known)), Pain (VPS) > 3, 18-45 years of age
Exclusion Criteria:
  1. - <37 weeks gestation, H/o Cesarean Section, Multiple Gestation, Pre-eclampsia, Narcotics within 3 hours prior to labor epidural placement, Chronic Pain (as defined by chronic opiate consumption), Women who are participating in another study that will impact protocol


Brendan Carvalho
Brendan Carvalho
Professor of Anesthesiology, Perioperative and Pain Medicine (Adult MSD) and, by courtesy, of Obstetrics and Gynecology (Maternal Fetal Medicine)

Contact us to find out if this trial is right for you.


Aramina Aksamit, RN