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PainPhase 2NCT00121563

Evaluation of a TNF-Alpha Modulator for Clinical and Molecular Indicators of Analgesic Effect

A Phase 2 study testing Thalidomide, Ibuprofen or Diazepam in people with Pain, run by National Institute of Nursing Research (NINR) at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will evaluate the role of thalidomide, a tumor necrosis factor (TNF)-alpha modulator, on severe inflammation and relief of pain following extraction of wisdom teeth. TNFs are substances that affect the pathways of pain. Read more about this study

Who is it for?
Any age, men only
Conditions the study is for
Pain
What is being tested?
Thalidomide, Ibuprofen or Diazepam
How many people
90 participants
Where
1 siteUnited States
Study dates
Jul 2005to Feb 2006
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • Men only
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • male patients referred for extraction of third molars willing to undergo surgical extraction of all indicated third molars
  • a minimum of one partial-bony impacted third molar, with a total difficulty score total of not less than 8
  • between the ages of 16 to 35 years (based upon eruption patterns and age-related complications associated with surgical extraction of third molars)
  • in good general health- ASA status 1 or 2 (healthy subjects based upon criteria for safe outpatient conscious sedation)
  • willing to undergo observation period for six hours postoperatively

Who cannot join

  • females
  • current mental disorder or substance abuse
  • allergy to aspirin, NSAIDs, or sulfonamide
  • history of peptic ulcers and GI bleeding
  • concurrent use of agents which may potentiate the sedative effect of study drugs, alcohol, opioids, benzodiazapines
  • chronic use of medications confounding assessment of the inflammatory response or analgesia, antihistamines, NSAIDs, steroids, antidepressants
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  • presence of chronic debilitating disease (such as diabetes, rheumatoid arthritis, liver disease, etc.)
  • presence of symptomatic tooth suggesting infection or inflammation
  • excessive surgical difficulty encountered during the surgical procedure, resulting in a difficulty score of 5 for any tooth
  • patients with acute narrow angle glaucoma, and open angle glaucoma who are not receiving therapy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institute of Nursing Research (NINR)

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: Evaluation of TNF-Alpha Modulator for Clinical and Molecular Indicators of Analgesic Effect

This study will evaluate the role of thalidomide, a tumor necrosis factor (TNF)-alpha modulator, on severe inflammation and relief of pain following extraction of wisdom teeth. TNFs are substances that affect the pathways of pain. This study involves an experimental group in which patients will be given thalidomide or a placebo (an inactive substance); a negative control group receiving the medication diazepam or a placebo; and a positive control group receiving diazepam or ibuprofen.

Patients who are males ages 16 to 35, who are not allergic to aspirin or other nonsteroidal anti-inflammatory drugs (known as NSAIDs), sulfites, or certain anesthetics, and who in good health may be eligible for this study. Females are not eligible, owing to the risks that thalidomide presents to unborn children. To minimize the risk of fetal malformations, male patients who participate must use a condom during sexual intercourse for 4 weeks following the study and must not donate blood for 4 weeks.

Read more

The medications used in the study will be given 1 hour before surgery. Then after the wisdom teeth are removed, a small piece of tubing will be placed into both sides of the patient's mouth where the teeth were removed. Every 20 minutes, for the next 6 hours, the researchers will collect inflammatory fluid from the tubing, to measure for changes in anti-inflammatory action. If they request pain relievers, patients will receive the medication ketorolac (Toradol), used for short-term treatment of moderately severe acute pain. Side effects of thalidomide include fatigue, dizziness, and rash. The use of ibuprofen and ketorolac may include the risk of gastrointestinal ulcers and bleeding. Diazepam can cause involuntary muscle movements and drowsiness, as well as dizziness lasting for up to 24 hours after it has been used as sedation. Patients will be instructed not to try to walk alone or to try to drive a vehicle during that period. Other risks related to participation in this study include those usually experienced with removal of wisdom teeth-that is, pain and swelling, bruising from insertion of the sedative into a vein (if needed), possible infection at the extraction site, prolonged bleeding, and numbness.

Benefits from participating are having wisdom teeth removed at no cost as well as close monitoring before and after surgery. Results from the study may help people in the future by improving the management of pain following surgery.

Read the detailed description

The proposed investigation is a randomized, double-blind, placebo and positive-controlled clinical study to evaluate the role of the cytokine tumor necrosis factor alpha (TNF-alpha) modulator, thalidomide, in acute inflammation and analgesia. The analgesic effect of thalidomide, a putative TNF-alpha modulator, will be evaluated using a model of tissue injury, the oral surgery model. Briefly, healthy males referred for third molar extraction will undergo the surgical extraction of third molars using standard surgical methods. At the completion of the surgical procedure, a microdialysis probe will be placed under the mucogingival flap previously elevated for the surgical procedure and subjects will be observed for pain over the course of six hours following surgery. Thalidomide or control will be administered one hour prior to surgery. Tissue levels of pro-inflammatory cytokines, and inflammatory mediators will be measured at time intervals postoperatively concomitant with pain measurements. Pain will be assessed postoperatively over the course of six hours. Demonstration of amelioration of pain is the primary outcome measure; changes in levels of tissue mediators will be taken as evidence of an acute anti-inflammatory effect of thalidomide. Based on our previous work with the fusion protein etanercept (TNFR:fc) which specifically binds TNF-alpha and prevents its interaction with cellular receptors, similar changes in the inflammatory cascade and clinical endpoints of inflammation may provide insight into the activity of thalidomide on acute inflammation and its clinical sequela, pain.

Conditions
Pain
Being tested
Thalidomide, Ibuprofen or Diazepam
Keywords
Cytokines, Inflammation, Pain, Injury, Peripheral, Wisdom Teeth, Third Molar Extraction
Medical subject headings
Pain, Inflammation, Wounds and Injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Thalidomide, Ibuprofen or DiazepamDrug

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jul 2005 (estimated)
  2. Study startJul 2005
  3. Study completionFeb 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Enrolment
90 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00121563
Sponsor's protocol ID
050193
Other IDs
05-NR-0193
Status last verified
Feb 2006
First submitted
20 Jul 2005
Last updated
4 Mar 2008
Results posted
No

Publications

  • Anthonsen MW, Solhaug A, Johansen B. Functional coupling between secretory and cytosolic phospholipase A2 modulates tumor necrosis factor-alpha- and interleukin-1beta-induced NF-kappa B activation. J Biol Chem. 2001 Aug 10;276(32):30527-36. doi: 10.1074/jbc.M008481200. Epub 2001 Jun 4.

    PubMed 11390371
  • Barosi G, Grossi A, Comotti B, Musto P, Gamba G, Marchetti M. Safety and efficacy of thalidomide in patients with myelofibrosis with myeloid metaplasia. Br J Haematol. 2001 Jul;114(1):78-83. doi: 10.1046/j.1365-2141.2001.02918.x.

    PubMed 11472348
  • Bastuji-Garin S, Ochonisky S, Bouche P, Gherardi RK, Duguet C, Djerradine Z, Poli F, Revuz J; Thalidomide Neuropathy Study Group. Incidence and risk factors for thalidomide neuropathy: a prospective study of 135 dermatologic patients. J Invest Dermatol. 2002 Nov;119(5):1020-6. doi: 10.1046/j.1523-1747.2002.19502.x.

    PubMed 12445187

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Thalidomide, Ibuprofen or Diazepam in people with Pain, run by National Institute of Nursing Research (NINR) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Mar 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00121563, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Mar 2008.

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