Does paracetamol given by mouth before wisdom tooth extraction give equal pain relief compared to paracetamol given by intravenous infusion?

ISRCTN ISRCTN77607163
DOI https://doi.org/10.1186/ISRCTN77607163
Secondary identifying numbers RPC179
Submission date
22/01/2008
Registration date
09/05/2008
Last edited
12/12/2012
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 Stephen Fenlon
Scientific

Queen Victoria Hospital NHS Foundation Trust
Holtye Road
East Grinstead
RH19 3QE
United Kingdom

Email stephen.fenlon@qvh.nhs.uk

Study information

Study designRandomised, controlled, blinded trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleA comparison of pre-medication with oral paracetamol versus intravenous paracetamol given at time of induction for post-operative analgesia following wisdom tooth extraction
Study hypothesisThere is no clinically significant difference between the post-operative analgesic effects of paracetamol when given orally as a pre-medication one hour pre-operatively, and when given as an intravenous infusion immediately pre-operatively.
Ethics approval(s)Brighton East Research Ethics Committee approved as of 19th February 2008 (ref: 08/H1107/16)
ConditionAnalgesia in wisdom tooth extraction
InterventionParticipants will be randomly assigned to either:
1. Oral pre-med group: two 500 milligram paracetamol capsules and 100 ml bag of normal saline for injection, or
2. IV group: two placebo lactose capsules and 100 ml (1 gram) of paracetamol for injection

The oral pre-medication will be given one hour prior to surgery and the intravenous whilst the participant is under a general anaesthetic. Duration of treatment 15 minutes for intravenous injection. Duration of follow up until discharged from hospital (max 3 - 4 hours).
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)Paracetamol
Primary outcome measureWe will compare the pain scores of patients in the two study arms one hour post-operatively. This will be done in recovery using a Visual Analogue Scale (VAS) pain scoring system.
Secondary outcome measuresWe will compare the time to request of post-operative ‘rescue’ analgesia between the two study arms. Specifically, this will be measured from when the patient arrives in recovery. This point will serve as a standard ‘time zero’ (t0). The time elapsed before the patient requests additional analgesia (if at all) will act as a secondary surrogate marker of analgesic efficacy.
Overall study start date31/03/2008
Overall study end date31/12/2008

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants116
Participant inclusion criteriaPatients over 18 years (either sex) having a general anaesthetic for extraction of wisdom teeth of which at least one must be a lower molar tooth.
Participant exclusion criteria1. Patients who are unable to give full consent, or who do not wish to take part in the trial
2. Patients who have a baseline Visual Analogue Scale (VAS) score of more than zero
3. Patients unable to swallow tablets
4. Patients who have taken simple analgesics that day, prior to surgery
5. Hypersensitivity or history of serious adverse reactions to paracetamol or non-steroidal anti-inflammatory drugs
6. Active liver disease
7. Renal dysfunction
8. Pregnant or breast feeding women
9. Alcohol or drug abuse
10. History of unresponsiveness to paracetamol
11. Gastric or peptic ulcer disease
12. Inflammatory bowel disease
13. Blood coagulation abnormalities
Recruitment start date31/03/2008
Recruitment end date31/12/2008

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Queen Victoria Hospital NHS Foundation Trust
East Grinstead
RH19 3QE
United Kingdom

Sponsor information

Queen Victoria Hospital NHS Foundation Trust (UK)
Hospital/treatment centre

Holtye Road
East Grinstead
RH19 3DZ
England
United Kingdom

Email sarah.dawe@qvh.nhs.uk
Website http://www.qvh.nhs.uk/
ROR logo "ROR" https://ror.org/03bs2yy11

Funders

Funder type

Government

National Institute for Health Research (UK) - the Research for Patient Benefit (RfPB) programme

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

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/03/2013 Yes No