Gastric emptying in women in early labor with different drinks

Examining the Gastric Emptying Halftime of Water Versus a Carbohydrate in Early Labor

Not applicable Interventional Beth Israel Deaconess Medical Center · NCT04229043

This study tests how quickly the stomach empties in women in early labor after drinking water or a sports drink, while also looking at their hunger levels and whether they received epidural pain relief.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment108 (estimated)
Ages18 Years to 50 Years
SexFemale
SponsorBeth Israel Deaconess Medical Center Academic / other
Locations1 site (Boston, Massachusetts)
Trial IDNCT04229043 on ClinicalTrials.gov

What this trial studies

This study investigates how quickly the stomach empties in women who are in early labor, comparing the effects of drinking water versus a carbohydrate-based sports drink. Participants are divided into two groups: those who have received epidural pain relief and those who have not. Using ultrasound, the researchers will measure the stomach's changing volume over 60 minutes after consumption. Additionally, participants will report their hunger levels at regular intervals during the study.

Who should consider this trial

Good fit: Ideal candidates include pregnant women at 36 weeks gestation or greater who are in early labor and meet specific health criteria.

Not a fit: Patients with conditions such as preeclampsia, diabetes, or those who have recently ingested food may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide insights into optimal hydration strategies for women in labor, potentially improving comfort and outcomes during childbirth.

How similar studies have performed: While similar studies on gastric emptying have been conducted, this specific comparison of water and sports drinks in laboring women is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Gestational age of 36 weeks or greater
* American Society of Anesthesiology Physical Status 2 or 3
* Induction of labor or early labor (cervical dilation \< 6cm)
* Singleton gestation

Exclusion Criteria:

* Recent food ingestion (\<3 hours)
* Preeclampsia
* Receiving magnesium sulfate
* Having received narcotics within 12 hours
* Diabetes mellitus
* Multiple gestations
* Active nausea or reflux symptoms

Where this trial is running

Boston, Massachusetts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions PregnancyGastric Emptying
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.