Botulinum Toxin Type A (Botox) for the Treatment of Cervical Dystonia and Upper Thoracic Muscular Pain
|First Received Date ICMJE||September 12, 2005|
|Last Updated Date||August 16, 2007|
|Start Date ICMJE||March 2004|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE
||Score on the Pain Subscale of the TWSTRS|
|Original Primary Outcome Measures ICMJE
||Score on the Pain Subscale of the Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) 2 weeks post-injection|
|Change History||Complete list of historical versions of study NCT00178945 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE
|Original Secondary Outcome Measures ICMJE
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Botulinum Toxin Type A (Botox) for the Treatment of Cervical Dystonia and Upper Thoracic Muscular Pain|
|Official Title ICMJE||Randomized, Double-Blind, Placebo-Controlled, Crossover Study of Botulinum Toxin Type A (Botox) for the Treatment of Pain Associated With Cervical Dystonia and Refractory Cervicothoracic Myofascial Pain Syndrome|
The purpose of this study is to investigate the use of injections of Botox (botulinum toxin type A) for the treatment of chronic neck pain. Botox is an approved treatment for patients with cervical dystonia. Cervical dystonia is a chronic condition characterized by involuntary movements of the neck that are often painful. In this study, the response from Botox in patients with neck pain not associated with cervical dystonia will be compared to the pain response in patients with cervical dystonia.
Cervical dystonia (CD) is a condition characterized by involuntary movements of the neck. Generally these movements are rotational and are frequently associated with significant pain. Treatment of CD with oral medications is usually unsuccessful and the current treatment of choice for the majority of patients consists of periodic injections of botulinum toxin into the offending muscles. Resistant cases are considered candidates for selective surgical denervation procedures.
Botulinum toxin type A (Botox®) is a FDA approved treatment for CD. Botox® has been safely used to treat CD in our clinic since 1989. In controlled trials, Botox® significantly improved pain in patients with CD.
Cervico-thoracic pain syndromes not associated with dystonia (refractory cervicothoracic myofascial pain syndrome or CMPS) is a chronic regional pain syndrome. It is a common component in acute and chronic pain syndromes, occurring in up to 14% of the U.S. population. This pain is often resistant to treatment and is characterized by a series of tender trigger points. These are often injected with local anesthetics that provide temporary relief of pain in some patients. Recent uncontrolled trials have suggested that Botox® may be helpful in patients with CMPS. Most attempts to use Botox® to treat these Patients have utilized smaller doses of Botox® than those used typically to treat CD. Also, most studies have used Botox® injection into tender trigger points rather than into the belly of the muscle as is commonly done to treat CD.
In this study we will use doses of Botox® that are typically used to treat CD. Injections of Botox® will be guided by EMG to determine areas of involuntarily firing muscle rather than solely into tender trigger points. The results in patients with CMPS will be compared to the pain relief experienced with those with CD. It is hoped that this trial will provide pilot data for planning a larger safety and efficacy trial of Botox® for chronic cervico-thoracic pain not associated with CD.
|Study Type ICMJE||Interventional|
|Study Phase||Phase 1
|Study Design ICMJE||Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Crossover Assignment
Primary Purpose: Treatment
|Intervention ICMJE||Drug: Botulinum Toxin Type A|
|Study Arm (s)||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Completion Date||March 2006|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
|Ages||18 Years and older|
|Accepts Healthy Volunteers||Yes|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Location Countries ICMJE||United States|
|NCT Number ICMJE||NCT00178945|
|Other Study ID Numbers ICMJE||030797|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||Vanderbilt University|
|Collaborators ICMJE||Not Provided|
|Information Provided By||Vanderbilt University|
|Verification Date||August 2007|
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