Ignite Creation Date:
2024-05-05 @ 11:29 AM
Last Modification Date:
2024-10-26 @ 9:08 AM
Study NCT ID:
NCT00050362
Status:
COMPLETED
Last Update Posted:
2008-03-04
First Post:
2002-12-04
Brief Title:
Rofecoxib and Bupivacaine to Prevent Pain After Third Molar Wisdom Tooth Extraction
Sponsor:
National Institute of Dental and Craniofacial Research NIDCR
Organization:
National Institutes of Health Clinical Center CC
Study Overview
Official Title:
Evaluation of a Long-Acting Local Anesthesia Bupivacaine and a Selective COX-2 Inhibitor Rofecoxib in Suppression of Central Sensitization
Status:
COMPLETED
Status Verified Date:
2004-10
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
This study will evaluate the ability of the drugs rofecoxib and bupivacaine to prevent pain following third molar wisdom tooth extraction Rofecoxib is approved to treat pain of arthritis and menstrual cramps Bupivacaine is a local anesthetic similar to lidocaine but longer acting
Healthy normal volunteers between 16 and 35 years of age who are in general good health and require extraction of their two lower wisdom teeth may be eligible for this study
Participants will have their two lower wisdom teeth extracted and a biopsy removal of a small piece of tissue will be taken from the inside of the cheek around the area behind one of the extraction sites Ninety minutes before surgery patients will take a dose of either rofecoxib or a placebo a pill with no active ingredient by mouth Just before surgery they will receive an injection of either lidocaine or bupivacaine to numb the mouth and a sedative called midazolam Versed Registered Trademark through an arm vein to cause drowsiness After surgery a small piece of tubing will be placed into one of the two extraction sites Samples will be collected from the tubing to measure chemicals involved in pain and inflammation
Patients will remain in the clinic for up to 4 hours after surgery to monitor pain and drug side effects while the anesthetic wears off During this time they will complete pain questionnaires every 20 minutes Patients whose pain is unrelieved an hour after surgery may request and receive acetaminophen Tylenol and codeine The tubing then will be removed and they will be discharged with pain medicines Tylenol codeine and the study drug and forms to record pain ratings They will be given detailed instructions on how and when to take the medicines and how to record information in the pain diary
Patients will return to the clinic 48 hours after surgery with the pain diary and pain relievers At this visit another biopsy will be taken under local anesthetic lidocaine
Healthy normal volunteers between 16 and 35 years of age who are in general good health and require extraction of their two lower wisdom teeth may be eligible for this study
Participants will have their two lower wisdom teeth extracted and a biopsy removal of a small piece of tissue will be taken from the inside of the cheek around the area behind one of the extraction sites Ninety minutes before surgery patients will take a dose of either rofecoxib or a placebo a pill with no active ingredient by mouth Just before surgery they will receive an injection of either lidocaine or bupivacaine to numb the mouth and a sedative called midazolam Versed Registered Trademark through an arm vein to cause drowsiness After surgery a small piece of tubing will be placed into one of the two extraction sites Samples will be collected from the tubing to measure chemicals involved in pain and inflammation
Patients will remain in the clinic for up to 4 hours after surgery to monitor pain and drug side effects while the anesthetic wears off During this time they will complete pain questionnaires every 20 minutes Patients whose pain is unrelieved an hour after surgery may request and receive acetaminophen Tylenol and codeine The tubing then will be removed and they will be discharged with pain medicines Tylenol codeine and the study drug and forms to record pain ratings They will be given detailed instructions on how and when to take the medicines and how to record information in the pain diary
Patients will return to the clinic 48 hours after surgery with the pain diary and pain relievers At this visit another biopsy will be taken under local anesthetic lidocaine
Detailed Description:
Central sensitization refers to persistent post-injury changes in the central nervous system resulting in greater pain sensitivity The concept of preemptive analgesia is defined as a treatment that prevents establishment of central sensitization by providing analgesic coverage during the perioperative period of surgery Previous acute pain studies using the oral surgery model have shown that suppression of postoperative pain not intra-operative nociceptive barrage diminishes the development of sensitization at 24 to 48 hours post-surgery During the intermediate postoperative period the nociceptive input from both surgical insult and inflammation leads to central sensitization yet their relative contributions have not been clearly evaluated The proposed study is designed to evaluate the relative impact of surgical insult and the subsequent inflammation on postoperative pain The relative contribution of each of these nociceptive processes provides a basis for postoperative pain management and the development of preemptive strategies
All subjects N 136 will be healthy volunteers scheduled for third molar extractions Using a double-blinded randomized parallel study design subjects will be randomized into four groups All patients will receive local anesthesia injections preoperatively either 2 lidocaine or 05 bupivacaine to manage surgical pain in conjunction with a preemptive medication either 50 mg of rofecoxib or placebo to control postoperative inflammation The first dose of preemptive medication will be taken by mouth 90 minutes prior to conscious sedation and extractions and later self-administered once a day for the next 48 hours The analgesic effect of the drugs will be assessed in the clinic every 20 minutes for the first four hours after extractions and then self-assessed at 24 and 48 hours after surgery using two pain intensity assessment instruments category scale and visual analog scale VAS Microdialysis will be performed with sample collection concurrent with pain report over the immediate postoperative period of four hours Two biopsies will be performed preoperatively and postoperatively at 48 hours The combination regimen with bupivacaine and rofecoxib is predicted to maximally suppress the onset and intensity of postoperative dental pain to a greater extent than all other groups through a blockade of the nociceptive input from both surgery and inflammation It is hypothesized that this preemptive treatment will maximally inhibit the development of central sensitization following tissue injury which manifests as hyperalgesia at later time points It is also hypothesized that the administration of rofecoxib a cyclooxygenase-2 selective anti-inflammatory medication will reduce post-surgical pain experienced at later time points to a greater extent than suppression of the intra-operative nociceptive barrage alone by bupivacaine suggesting that suppression of inflammation plays a more pivotal role than attenuating nociception due to tissue injury in diminishing central sensitization
All subjects N 136 will be healthy volunteers scheduled for third molar extractions Using a double-blinded randomized parallel study design subjects will be randomized into four groups All patients will receive local anesthesia injections preoperatively either 2 lidocaine or 05 bupivacaine to manage surgical pain in conjunction with a preemptive medication either 50 mg of rofecoxib or placebo to control postoperative inflammation The first dose of preemptive medication will be taken by mouth 90 minutes prior to conscious sedation and extractions and later self-administered once a day for the next 48 hours The analgesic effect of the drugs will be assessed in the clinic every 20 minutes for the first four hours after extractions and then self-assessed at 24 and 48 hours after surgery using two pain intensity assessment instruments category scale and visual analog scale VAS Microdialysis will be performed with sample collection concurrent with pain report over the immediate postoperative period of four hours Two biopsies will be performed preoperatively and postoperatively at 48 hours The combination regimen with bupivacaine and rofecoxib is predicted to maximally suppress the onset and intensity of postoperative dental pain to a greater extent than all other groups through a blockade of the nociceptive input from both surgery and inflammation It is hypothesized that this preemptive treatment will maximally inhibit the development of central sensitization following tissue injury which manifests as hyperalgesia at later time points It is also hypothesized that the administration of rofecoxib a cyclooxygenase-2 selective anti-inflammatory medication will reduce post-surgical pain experienced at later time points to a greater extent than suppression of the intra-operative nociceptive barrage alone by bupivacaine suggesting that suppression of inflammation plays a more pivotal role than attenuating nociception due to tissue injury in diminishing central sensitization
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| 03-D-0055 | None | None | None |