A comparison of speed of action of phenylephrine and ephedrine

ISRCTN ISRCTN42749317
DOI https://doi.org/10.1186/ISRCTN42749317
Secondary identifying numbers N0521113691
Submission date
30/09/2004
Registration date
30/09/2004
Last edited
25/03/2020
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Pregnancy and Childbirth
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr D Thomas
Scientific

University Hospital of North Durham
North Road
Durham
DH1 5TW
United Kingdom

Study information

Study designRandomised double-blind controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleA comparison of speed of action of phenylephrine and ephedrine
Study objectivesDoes phenylephrine allow more rapid control of maternal arterial pressure during obstetric spinal anaesthesia than ephedrine?
Ethics approval(s)Not provided at time of registration
Health condition(s) or problem(s) studiedPregnancy and Childbirth: Anaesthesia
InterventionPhenylephrine vs ephedrine

A standardised anaesthetic technique will be used. Maternal arterial pressure will be measured by an automated oscillometric device (Cardiocap II, Datex Instrumentarium) and by a continuous, non-invasive photoplethysmographic device using a finger probe (Finapres 2300, Ohmeda). Boluses of phenylephrine 100 ug or ephedrine 6 mg will be given whenever systolic arterial pressure falls by 15% from the prespinal value. An analog arterial pressure waveform will be recorded using a PowerLab 8sp recording and analysis device (AD Instruments Inc). This time from administration of vasopressor to time of peak effect on arterial pressure will then be analysed.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)Phenylephrine and ephedrine
Primary outcome measureTtime to peak vasopressor effect on systolic arterial pressure
Secondary outcome measuresNot provided at time of registration
Overall study start date27/03/2002
Completion date30/06/2004

Eligibility

Participant type(s)Patient
Age groupAdult
SexFemale
Target number of participantsNo data is available to guide sample size estimations.
Key inclusion criteriaHealthy women having elective caesarean section at term will be recruited.
Key exclusion criteriaNot provided at time of registration
Date of first enrolment27/03/2002
Date of final enrolment30/06/2004

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

University Hospital of North Durham
Durham
DH1 5TW
United Kingdom

Sponsor information

Department of Health
Government

Richmond House
79 Whitehall
London
SW1A 2NL
United Kingdom

Website http://www.dh.gov.uk/Home/fs/en

Funders

Funder type

Government

County Durham and Darlington Acute Hospitals NHS Trust (North) (UK)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Editorial Notes

25/03/2020: No publications found, all search options exhausted, study status unverified.