Pilot Study to Assess the Efficacy of Botulinum Toxin A Treatments on Pain and Disability in Sub-Acute Low Back Pain

Low Back Pain Clinical Trial

Official title: Pilot Study to Assess the Efficacy of Botulinum Toxin A (BOTOX®) Treatment of Paravertebral Muscles on Pain and Disability in Subjects Suffering From Sub-Acute Low Back Pain.

Status Terminated

Clinical Trial Summary

This study will test the hypothesis that Botulinum toxin A (BOTOX®) treatment reduces pain and disability in subjects suffering from sub-acute low back pain due to an identifiable muscle strain or back trauma occurring 6 to 16 weeks prior to enrollment. The study will also delineate the duration of medication effect and control for any placebo or mechanical trigger-point injection effect by employing a prospective, double-blind, placebo-controlled design.

Clinical Trial Description

This study will assess the efficacy of Botulinum Toxin A (BOTOX®) injected into the lumbar paravertebral muscles for reducing pain and disability in subjects suffering from sub-acute low back pain (duration 6 to 16 weeks) arising from an identifiable muscle strain injury or back trauma. The treatment modality and techniques used are based upon three successful prior open-labeled pilot studies done by this research group investigating the effect of BOTOX® on relief of chronic low back pain. This study, however, will employ a prospective, double-blind, randomized, placebo controlled trial to control for any placebo or mechanical trigger-point injection effects. Subjects will also be assessed for 6 months to define the duration of efficacy of BOTOX®. Sixty subjects will be randomly assigned to one of two arms. There will be two parts to this study. In the first both groups will receive either BOTOX® or placebo injection into the lumbar paravertebral muscles. The subjects will be assessed using validated scales for pain and disability prior to injection and weekly to monthly thereafter for three months. Subjects who improve will have a single follow-up visit at 6 months while those subjects who do not improve will enter the second, open-label part where they will receive BOTOX® injection and be monitored weekly to monthly for the next 3 months, giving a total subject participation period of 6 months. All subjects will continue to receive any medication or physiotherapy per standard of care but those treatments will be recorded and controlled for in the data analysis. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Back Pain
• Low Back Pain

• NCT number: NCT00384371
• Study type: Interventional
• Source: Walter Reed Army Medical Center
• Status: Terminated
• Phase: Phase 4
• Start date: June 2008
• Completion date: September 2011