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Trial registered on ANZCTR
Registration number
ACTRN12613000036718
Ethics application status
Approved
Date submitted
11/01/2013
Date registered
14/01/2013
Date last updated
18/03/2014
Type of registration
Prospectively registered
Titles & IDs
Public title
the effect of ondansetron on hypotension due to spinal anesthesia for caesarean section.
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Scientific title
spinal-induced hypotension reduction with ondansetron
in parturients undergoing caesarean section: A double-blind
randomised, controlled study.
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Secondary ID [1]
281754
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nil
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Universal Trial Number (UTN)
U1111-1138-4350
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
hypotension induced by spinal anesthesia for caeserean section
288065
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Condition category
Condition code
Anaesthesiology
288436
288436
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0
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Other anaesthesiology
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Reproductive Health and Childbirth
288444
288444
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0
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Childbirth and postnatal care
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
4 mg ondansetron (4 milliliters) given intravenously, 5 minutes before spinal anesthesia (using 10 mg hyperbaric bupivacaine 0.5% plus 2.5 microgramm sufentanil)
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Intervention code [1]
286292
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Treatment: Drugs
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Comparator / control treatment
4 milliliters of saline solution given intravenously, 5 minutes before spinal anesthesia (using 10 mg hyperbaric bupivacaine 0.5% plus 2.5 microgramm sufentanil)
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Control group
Placebo
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Outcomes
Primary outcome [1]
288604
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diastolic blood pressure.
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Assessment method [1]
288604
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Timepoint [1]
288604
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baseline time (before injection of ondonsetron or saline),at the end of spinal injection and every 5 minutes until end of surgey.
non invasive blood pressure
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Primary outcome [2]
288613
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neonates pH
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Assessment method [2]
288613
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Timepoint [2]
288613
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at delivery.
arterial blood gas from umbilical cord
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Primary outcome [3]
288614
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heart rate
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Assessment method [3]
288614
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Timepoint [3]
288614
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baseline time (before injection of ondonsetron or saline),at the end of spinal injection and every 5 minutes until end of surgey.
electrocardioscope
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Secondary outcome [1]
300575
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maternal oxygen saturation
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Assessment method [1]
300575
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Timepoint [1]
300575
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at time of spinal injection and at 5-min intervals until the end of surgery
pulse oxymetry
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Secondary outcome [2]
300576
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Upper sensory levels
pinkprick and cold test
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Assessment method [2]
300576
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Timepoint [2]
300576
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5-min intervals from spinal injection to 10 minutes
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Secondary outcome [3]
300577
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Nausea and vomiting and pruritis
spontaneous reporting, clinical manifestations (retching, vomiting or itching) and any request for antiemiting or antihistaminic medications
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Assessment method [3]
300577
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Timepoint [3]
300577
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when occured until 2 days after surgery
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Secondary outcome [4]
300593
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systolic blood pressure
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Assessment method [4]
300593
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Timepoint [4]
300593
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baseline time (before injection of ondonsetron or saline),at the end of spinal injection and every 5 minutes until end of surgey.
non invasive blood pressure
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Secondary outcome [5]
300594
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mean blood pressure
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Assessment method [5]
300594
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Timepoint [5]
300594
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baseline time (before injection of ondonsetron or saline),at the end of spinal injection and every 5 minutes until end of surgey.
non invasive blood pressure
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Secondary outcome [6]
300595
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maternal lactates
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Assessment method [6]
300595
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Timepoint [6]
300595
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basliene time (before injection of ondonsetron or saline) and at cutaneous incision
arterial blood gas
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Secondary outcome [7]
300596
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apgar score
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Assessment method [7]
300596
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Timepoint [7]
300596
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at 1,3,5 and 10 minutes after birth
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Eligibility
Key inclusion criteria
parturients ,who were ASA physical status I, undergoing an elective caesarean section
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Minimum age
20
Years
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Maximum age
45
Years
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Sex
Females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Parturients with contraindications to subarachnoid block
(patient refusal, unstable haemodynamics, coagulation
abnormality), history of hypersensitivity to ondansetron or local anaesthetic agents, hypertensive disorders of
pregnancy, cardiovascular insufficiency and parturients receiving selective serotonin reuptake inhibitors
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation was concealed by sealed opaque envelopes
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation using coin-tossing
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3 / Phase 4
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Type of endpoint/s
Safety/efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/02/2013
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Actual
5/02/2013
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Date of last participant enrolment
Anticipated
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Actual
23/10/2013
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
80
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Recruitment outside Australia
Country [1]
4786
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Tunisia
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State/province [1]
4786
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TUNIS
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Funding & Sponsors
Funding source category [1]
286540
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Hospital
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Name [1]
286540
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Tunisian Military Hospital
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Address [1]
286540
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20 Montfleury street; 1002 Tunis; TUNISIA
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Country [1]
286540
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Tunisia
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Primary sponsor type
Hospital
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Name
Tunisian Military Hospital
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Address
20 Montfleury street; 1002 Tunis; TUNISIA
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Country
Tunisia
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Secondary sponsor category [1]
285327
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None
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Name [1]
285327
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Address [1]
285327
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Country [1]
285327
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
288609
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Tunisian Military Hospital local ethic committee
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Ethics committee address [1]
288609
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20 Montfleury street 1002 Tunis; TUNISIA
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Ethics committee country [1]
288609
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Tunisia
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Date submitted for ethics approval [1]
288609
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14/12/2012
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Approval date [1]
288609
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19/12/2012
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Ethics approval number [1]
288609
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Summary
Brief summary
spinal-induced hypotension results primarily from decreased vascular resistance secondary to a relative parasympathetic dominance, increased baroreceptor activity, or induction of the Bezold Jarisch Reflex (BJR). several animal studies suggest that 5-HT (serotonin) may be an important factor associated inducing the BJR. We hypothesized that spinal-induced hypotension and bradycardia could be minimized with the use of intravenous ondansetron, a 5-HT3 receptor antagonist, in obstetric patients undergoing caesarean section.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
36742
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A/Prof Trabelsi walid
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Address
36742
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departement of anesthesia and intensive care unit, Tunisian Military Hospital, 20 Montfleury street 1002 Tunis; TUNISIA
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Country
36742
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Tunisia
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Phone
36742
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+216 24091983
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Fax
36742
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Email
36742
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[email protected]
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Contact person for public queries
Name
36743
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Trabelsi walid
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Address
36743
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departement of anesthesia and intensive care unit, Tunisian Military Hospital, 20 Montfleury street 1002 Tunis; TUNISIA
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Country
36743
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Tunisia
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Phone
36743
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+216 24091983
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Fax
36743
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Email
36743
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[email protected]
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Contact person for scientific queries
Name
36744
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Trabelsi walid
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Address
36744
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departement of anesthesia and intensive care unit, Tunisian Military Hospital, 20 Montfleury street 1002 Tunis; TUNISIA
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Country
36744
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Tunisia
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Phone
36744
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+216 24091983
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Fax
36744
0
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Email
36744
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[email protected]
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No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Embase
Effect of ondansetron on the occurrence of hypotension and on neonatal parameters during spinal anesthesia for elective caesarean section: A prospective, randomized, controlled, double-blind study.
2015
https://dx.doi.org/10.1155/2015/158061
N.B. These documents automatically identified may not have been verified by the study sponsor.
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