How effective is Ametop 4% gel, before a venipuncture, at reducing procedural pain in infants: a randomized placebo-controlled trial

ISRCTN ISRCTN42842643
DOI https://doi.org/10.1186/ISRCTN42842643
Secondary identifying numbers BL 002
Submission date
29/07/2005
Registration date
04/11/2005
Last edited
27/10/2022
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Signs and Symptoms
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Not provided at time of registration

Contact information

Dr Brigitte Lemyre
Scientific

401 Smyth Road
Ottawa
K1H 8L1
Canada

Email blemyre@ottawahospital.on.ca

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Scientific titleHow effective is Ametop 4% gel, before a venipuncture, at reducing procedural pain in infants: a randomized placebo-controlled trial
Study hypothesisAmethocaine 4% gel applied before a venipuncture in newborn infants will safely and significantly decrease procedural pain
Ethics approval(s)Not provided at time of registration
ConditionProcedural pain
InterventionAmetop (amethocaine) 4% gel versus placebo, 1.5 g applied to skin for 30 minutes prior to the venipuncture
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)Ametop (amethocaine, tetracaine hydrochloride) 4% gel
Primary outcome measurePremature Infant Pain Profile (PIPP) score in the first minute after skin puncture
Secondary outcome measures1. PIPP scores during the first, second, third and fourth minute post-skin puncture
2. Mean heart rate in beats per minute, mean respiratory rate per minute, mean blood pressure in mm Hg and mean 02 saturation in % at the end of baseline, 1 minute after skin puncture then 2, 3, 4, 5 and 10 minutes after skin puncture
3. Duration of cry, from skin puncture to recovery
4. Ease of procedure, as reflected by the mean number of attempts required to obtain the bloodwork, the success rate at obtaining the bloodwork and subjective measure of easiness on a scale of 1 to 5 (1 being very easy and 5 very hard)

The safety of amethocaine was assessed using the following data: local skin reaction (redness, edema), complete blood count and differential (pre and post intervention), aspartate aminotransferase (AST) and ALT (pre and post intervention), and creatinine levels (post intervention). All infants’ vital signs were monitored throughout and after the intervention and any significant event (apnea/bradycardia, sustained bradycardia or tachycardia, sustained desaturation requiring intervention) was recorded.
Overall study start date03/01/2003
Overall study end date30/12/2004

Eligibility

Participant type(s)Patient
Age groupNeonate
SexBoth
Target number of participants54
Total final enrolment142
Participant inclusion criteria1. Born at >24 weeks gestation
2. Skin considered in good condition (no burns or rash)
3. If <27 weeks gestation, at least 48 hours of life
4. Considered stable by the treating neonatologist
Participant exclusion criteria1. Skin considered immature (insensible water losses requiring more fluids than usual for gestation)
2. Suspected or proven significant central nervous system anomaly
3. Receiving opioids or sedatives at time of venipuncture or in the previous 12 hours or receiving muscle relaxants
4. Facial anomalies (cleft lip/palate, Moebius syndrome) preventing typical facial expression of pain
5. Sub optimal hepatic function (alanine aminotransferase [ALT] >2 x upper normal limit) or sub optimal renal function (urine output <1 ml/kg/hour in the last 12 hours)
Recruitment start date03/01/2003
Recruitment end date30/12/2004

Locations

Countries of recruitment

  • Canada

Study participating centre

401 Smyth Road
Ottawa
K1H 8L1
Canada

Sponsor information

Children's Hospital of Eastern Ontario Research Institute (Canada)
Hospital/treatment centre

401 Smyth Road
Ottawa
K1H 8L1
Canada

Email blemyre@ottawahospital.on.ca
ROR logo "ROR" https://ror.org/05nsbhw27

Funders

Funder type

Hospital/treatment centre

Physicians Services Incorporated (#02-39) and Children's Hospital of Eastern Ontario Research Institute

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 planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 08/02/2007 27/10/2022 Yes No

Editorial Notes

27/10/2022: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.