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Phenylephrine for Spinal Induced Hypotension

NCT00781157 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 66

Last updated 2013-05-23

No results posted yet for this study

Summary

This study is designed to determine the ED90 for a single dose of phenylephrine for the treatment of spinal induced hypotension in parturients presenting for an elective CD. The ED90 is the effective dose at which 90% of subjects will have a "positive" response to phenylephrine. The primary outcome measure is the ED90 for bolus phenylephrine. Secondary outcomes include the need for additional vasopressors, glycopyrolate to treat bradycardia, and the presence of hypertension following administration of phenylephrine.

Conditions

Interventions

DRUG

Phenylephrine bolus

The initial dose of phenylephrine will be 100 mcg, a dose within the clinical range currently in use at our center. The subsequent dose is based upon the response of the preceding subject in the usual up-and-down method (UDM), which is outlined in the "data analysis" section of the protocol. The dosing changes will be in increments of 20 micrograms. A successful response to this dose will be entered into a spreadsheet, designed by our statistician, which will determine the subsequent dose based upon the UDM. If a failure is observed in the previous subject, the dose is stepped up in the next subject. If a success is observed the next subject is randomized with probability of 0.10 to the next lower dose and with probability 0.90 to the same dose.

Sponsors & Collaborators

  • IWK Health Centre

    lead OTHER

Principal Investigators

  • Ronald B George, MD FRCPC · IWK Health Centre

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-01-31
Primary Completion
2008-08-31
Completion
2008-10-31

Countries

  • Canada

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00781157 on ClinicalTrials.gov