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CompletedNCT04825704Updated Aug 4, 2023

Bupivacaine in Tonsillectomy

A Phase 3 interventional study of Bupivacaine and Sodium chloride in Pain, Postoperative, sponsored by Nordlandssykehuset HF. Completed at 1 site in Norway. Open to participants aged 5 Years to 40 Years. Per ClinicalTrials.gov, last updated 2023-08-04.

Sponsored by Nordlandssykehuset HF · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
84
Allocation
Randomized
Ages
5 Years to 40 Years
Sex
All
01

Study summary

A placebo-controlled and double-blind study is planned according to current legislation and ICH GCP guidelines with 80 patients at Nordland Hospital, Bodø. Fifty percent are randomized to receive bupivacaine 5 mg / ml on the gauze swabs used to stop the bleeding after tonsillectomy, and 50% receive 0.9% sodium chloride.

Pain at rest and pain when swallowing according to numerical rating scale (0-10), as well as the presence of the following symptoms (yes / no): nausea, vomiting, food intake, bleeding, fever, need for extra painkillers in the form of morphine or similar will be registered 1, 2, 3, 4, 5, 6 hours and 1, 2 4 and 6 days after the operation. Differences are analyzed with "mixed models" statistics and the results will be published in a peer-based journal.

02

Conditions studied

  • Pain, Postoperative

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03

In context

Pain, Postoperative

5,093 studies on the registry are indexed under Pain, Postoperative; 1,140 are open to participants now.

This study's enrollment of 84 is above the median of 75 across 4,344 interventional studies indexed under Pain, Postoperative.

Browse Pain, Postoperative studies →

Lead sponsor

Nordlandssykehuset HF is the lead sponsor of 20 studies on the registry; 4 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
5 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

All patients undergoing isolated tonsillectomy from the age of 5 years to 40 years

Exclusion criteria

Exclusion Criteria:

  1. Known allergy to local anesthetics.
  2. Patients using painkillers in the form of opioids fixed before inclusion in the study. People who have a lot of pain often have more pain after known painful stimuli, such as surgery. This is known as the phenomenon of "central sensitization" and "opioid-induced hyperalgesia" and will probably contribute to great heterogeneity within the groups. Because very few people use opioids regularly from those who have an isolated tonsillectomy performed, it can make it difficult to detect any differences between the groups, and the number is far too low to be able to perform stratified analyzes on only these people.
  3. Persons weighing less than 10 kg.
  4. Persons over the age of 18 who are not competent to give consent.
  5. Patients using class Ib antiarrhythmics (lidocaine, mexiletine) due to increased risk of additive toxicity due to structural similarities. (see SPC)
  6. Known partial or total heart block that has not had a pacemaker inserted (see SPC)
  7. Severe hepatic failure (spontaneous prothrombin time -international normalized ratio (PT-INR)> 2.0). These patients are not offered this type of procedure as day surgery due to the high risk of complications for the surgery itself.
  8. Severe renal failure (estimated glomerular filtration rate \<15 ml / min / 1.73m2).
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
84 participants (actual)

Study arms

  • Active comparator
    Bupivacaine

    Topical administration of bupivacaine via gauze swab in the tonsillar fossae after removal of throat tonsils.

    Drug: Bupivacaine

  • Placebo comparator
    Sodium chloride

    Topical administration of 0,9% sodium chloride via gauze swab in the tonsillar fossae after removal of throat tonsils.

    Drug: Sodium chloride

Interventions

  • DrugBupivacaine

    Topical administration of bupivacaine via gauze swab in the tonsillar fossae after removal of throat tonsils.

    Also known as: Marcain

  • DrugSodium chloride

    Topical administration of 0,9% sodium chloride via gauze swab in the tonsillar fossae after removal of throat tonsils.

    Also known as: Saline

06

What researchers measure

Primary outcomes

  1. Difference in self-reported pain at rest.

    Difference in self-reported pain at rest by the numerical rating scale (0-10, 0 = no pain, 10 worst pain) for patients aged 10 years and older, and indicated by the faces pain scale-revised (0-10, 0 = no pain, 10 worst pain) for patients aged 5-10 years old, on average over all measurement times. Pain is registered at 1,2,3,4,5 and 6 hours.

    Time frame: Until 6 hours postoperatively.

Secondary outcomes

  1. Difference in pain when swallowing on average over all measurement times.

    Difference in pain according to the numerical rating scale (0-10, 0 = no pain, 10 worst pain) between the two groups when swallowing on average over all measurement times. Pain is registered at 1,2,3,4,5 and 6 hours, and 1,2,4 and 6 days postoperatively.

    Time frame: Until 6 days postoperatively

  2. Graphic Descriptive representation of numerical rating scale (0-10, 0 = no pain, 10 worst pain) in a curve diagram

    Pain is registered at 1,2,3,4,5 and 6 hours, and 1,2,4 and 6 days postoperatively

    Time frame: Until 6 days postoperatively

  3. Difference in numerical rating scale (0-10, 0 = no pain, 10 worst pain) at rest between the groups day 1 after the operation

    Time frame: Until 1 day postoperatively

  4. Difference in numerical rating scale (0-10, 0 = no pain, 10 worst pain) at rest between the groups day 6 after the operation

    Time frame: Until 6 days postoperatively

  5. Difference in numerical rating scale (0-10, 0 = no pain, 10 worst pain) when swallowing between the groups day 1 after the operation

    Time frame: Until 1 day postoperatively

  6. Difference in numerical rating scale (0-10, 0 = no pain, 10 worst pain) when swallowing between the groups day 6 after the operation

    Time frame: Until 6 days postoperatively

  7. Difference in defined daily doses of morphine in the two groups

    Time frame: Until 6 days postoperatively

  8. Difference in number and type a) serious adverse event, b) serious adverse reaction and c) adverse reaction where the adverse reaction is an adverse medical event where there is a probable or possible association with the test preparation

    Time frame: Until one hour postoperatively

  9. Difference in hours of nausea

    Time frame: Until 6 days postoperatively

  10. Difference in the number of times eaten solid food

    Time frame: Until 6 days postoperatively

  11. Number of vomiting episodes

    Time frame: Until 6 days postoperatively

  12. Number of episodes in which blood is spit for more than 30 minutes from 1 hour postoperatively

    Time frame: Until 6 days postoperatively

  13. Hours with measured fever> = 38 C rectally, tympanometric or with temporal scanner

    Time frame: Until 6 days postoperatively

07

Study locations

1 site
  • Nordland Hospital
    Bodø, N-8096, Norway
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 4, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04825704
Lead sponsor
Nordlandssykehuset HF
Responsible party
Kristin Sandal Berg, MD PhD (Trainee in anesthesiology, associate professor, Nordlandssykehuset HF) — Principal investigator
First posted
Apr 1, 2021
Start date
Oct 27, 2021
Primary completion
Jun 27, 2023
Completion
Jun 27, 2023
Last update
Aug 4, 2023

Study contacts

Kristin S Berg, MD PhD
principal investigator · Nordlandssykehuset HF
Erik W Nielsen, MD PhD
principal investigator · Nordlandssykehuset HF

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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