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NCT00008476 · ClinicalTrials.gov registry record · Phase 2
Capsaicin to Control Pain Following Third Molar Extraction
A Phase 2 study, sponsored by National Institute of Dental and Craniofacial Research (NIDCR).
- Completed
- Registry status
- Phase 2
- Development phase
- 162
- Enrollment target
NCT00008476: Completed Phase 2 study, sponsored by National Institute of Dental and Craniofacial Research (NIDCR).
NCT00008476 is a Phase 2 study that has completed, run by National Institute of Dental and Craniofacial Research (NIDCR). The registered enrollment target is 162 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (22% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00008476, a Phase 2 study, has completed, sponsored by National Institute of Dental and Craniofacial Research (NIDCR).
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 162 participants
- Enrollment target
Study Summary
This study will test the effectiveness of the drug capsaicin in controlling pain after third molar (wisdom tooth) extraction. Capsaicin, the ingredient in chili peppers that makes them "hot," belongs to a class of drugs called vanilloids, which have been found to temporarily inactivate pain-sensing nerves. Healthy normal volunteers between 16 and 40 years of age who require third molar (wisdom tooth) extraction may be eligible for this study. Participants will undergo the following procedures in three visits: Visit 1: Patients will have touch (sensory) testing by the following three methods: 1) a warm sensor applied to the gums and the patient will rate when they first feel heat and when the heat feels painful; 2) the bristles of a small paint brush will be gently stroked across the gums, and the patient will say whether it feels painful; 3) a light touch will be applied to the gums with a small needle, and the patient will rate the pain intensity following the touch. After testing, patients will be numbed with a local anesthetic (bupivacaine) and then capsaicin or placebo (an inactive solution) will be injected next to the tooth. The tooth then will be extracted one day later. Visit 2: Patients will return to the clinic after 24 hours to repeat the same type of sensory testing. After testing, patients will be sedated and numbed with a local anesthetic (lidocaine) and given an intravenous injection of either saline or ketorolac (30 mg). After the extraction, pain ratings will be recorded every 20 minutes, for up to 6 hours. During this time, patients will be monitored for numbness, pain, side effects and vital signs (heart rate, blood pressure, respiration, etc.). Those who request pain medicine will receive acetaminophen and codeine. Patients will be required to stay for up to 3 more hours after this and then they will then be discharged with pain medicine. Visit 3: Patients will return to the clinic after another 48 hours to repeat the same sensory testing
Interventions
- DRUG Capsaicin
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 162 participants |
| Start Date | 2001-01 |
| Est. Completion | 2004-01 |
| Phase | Phase 2 |
What the finished NCT00008476 record still lists
NCT00008476 is an interventional study that assigns participants to a tested intervention. The registered 162 participants enrollment target is mid-sized for trials with a published cap, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (22% higher).
The record links to 0 conditions, and to 1 intervention - of which Capsaicin is the first listed.
NCT00008476 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00008476 about?
NCT00008476 is a clinical study titled "Capsaicin to Control Pain Following Third Molar Extraction". This study will test the effectiveness of the drug capsaicin in controlling pain after third molar (wisdom tooth) extraction. Capsaicin, the ingredient in chili peppers that makes them "hot," belongs to a class of drugs called vanilloids, which have been found to temporarily inactivate pain-sensing ...
What is the current status of trial NCT00008476?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 162 participants. The study started on 2001-01. Estimated completion is 2004-01.
What interventions are being tested in trial NCT00008476?
The interventions under investigation include: Capsaicin (DRUG).
Who is sponsoring clinical trial NCT00008476?
This trial is sponsored by National Institute of Dental and Craniofacial Research (NIDCR), which has 91 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00008476's enrollment target sits among peer trials
162 418th of 2000 higher than 1,579 of 2,000 other Phase 2 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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