NCT06146842

Brief Summary

The primary objective of our study is to use a biased coin up-down allocation methodology to estimate the dose of bupivacaine required after the lidocaine test dose to achieve initial effective comfort in 90% of patients (post test-dose ED90) via the epidural (DPE or EPL) technique in women undergoing labor induction or augmentation; the investigators hypothesize that the investigators will be able to determine the post test-dose ED90 of bupivacaine for each technique with adequate precision to inform the optimal doses to study in a subsequent randomized trial comparing the analgesic effects of DPE vs. EPL. The investigators also hypothesize that the post test-dose ED90 of bupivacaine is lower with a DPE technique than with a conventional epidural technique.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Dec 2023

Typical duration for phase_4

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 18, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

November 27, 2023

Completed
4 days until next milestone

Study Start

First participant enrolled

December 1, 2023

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2026

Completed
Last Updated

February 10, 2025

Status Verified

January 1, 2025

Enrollment Period

2.2 years

First QC Date

November 18, 2023

Last Update Submit

February 6, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • NRS <3 at 30 min

    Adequate analgesia is defined as NRS score less than 3 at 30 minutes after time 0.

    30 minutes after time 0.

Study Arms (2)

DPE Group

ACTIVE COMPARATOR

Subjects will receive an epidural catheter via a dural puncture epidural technique.

Drug: Bupivacaine Hydrochloride

EPL Group

ACTIVE COMPARATOR

Subjects will receive an epidural catheter via a traditional epidural technique.

Drug: Bupivacaine Hydrochloride

Interventions

Each subject will receive allocated dose of bupivacaine

DPE GroupEPL Group

Eligibility Criteria

Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Parturient with no major co-morbidities
  • Singleton, vertex gestation at term (37-42 weeks)
  • Less than or equal to 5 cm dilation
  • Desire to receive epidural labor analgesia
  • Numerical Rating Scale greater than or equal to 5 (NRS 0-10, where 0 = no pain, and 10 = worst pain imaginable), at time of epidural labor analgesia request.

You may not qualify if:

  • Current or historical evidence of clinically significant disease or condition, including diseases of pregnancy (i.e., preeclampsia, gestational diabetes)
  • Any contraindication to the administration of an epidural technique (e.g., thrombocytopenia, antiplatelet meds).
  • History of hypersensitivity or idiosyncratic reaction to an amide local anesthetic agent
  • Evidence of anticipated fetal complications (i.e., fetal anomalies, IUGR (Intrauterine Growth Restriction), oligohydramnios, polyhydramnios)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brigham and Women's Hospital

Boston, Massachusetts, 02115, United States

RECRUITING

MeSH Terms

Conditions

Labor Pain

Interventions

Bupivacaine

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

AnilidesAmidesOrganic ChemicalsAniline CompoundsAmines

Central Study Contacts

Lawrence Tsen, MD

CONTACT

Ayumi Maeda, MD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Model Details: A Randomized Biased-Coin Sequential Allocation Trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor in Anaesthesia

Study Record Dates

First Submitted

November 18, 2023

First Posted

November 27, 2023

Study Start

December 1, 2023

Primary Completion

January 31, 2026

Study Completion

January 31, 2026

Last Updated

February 10, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations