NCT01238536

Lumbar Epidural Steroid Injections for Spinal Stenosis Multicenter Randomized, Controlled Trial (LESS Trial)

Multicenter Randomized Controlled Trial of Epidural Steroid Injections for Spinal Stenosis in Persons 50 and Older

• Status: Completed
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 400 (actual)
• Sponsor: University of Washington · Academic / Other
• Sex: All
• Age: 50 Years
• Healthy volunteers: Not accepted

Summary

The broad, long-term objective of this research protocol is to improve the quality of life for patients suffering from lumbar spinal stenosis. This objective will be met by examining the safety and clinical efficacy of epidural steroid injections for treatment of pain associated with lumbar spinal stenosis. This prospective, randomized, double-blind controlled trial (RCT) will test the hypothesis that the effectiveness of epidural steroid injections (ESI) plus local anesthetic (LA) is greater than epidural injections of LA alone in older adults with lumbar spinal stenosis.

Detailed description

Lumbar spinal stenosis is one of the most common causes of low back pain in the elderly and can lead to significant disability. The symptoms of spinal stenosis range from low back pain to neurogenic claudication with lower extremity pain, weakness and/or sensory changes related to activities. As spinal stenosis can affect the central canal as well as the lateral recesses and intervertebral foramen variably, symptoms can involve single or multiple myotomes and dermatomes. Since the causes of spinal stenosis are most frequently degenerative changes, the symptoms of spinal stenosis often, but not always, worsen over time. Despite the prevalence of spinal stenosis, treatment of spinal stenosis remains somewhat controversial. Common treatments include conservative measures such as non-steroidal anti-inflammatories (NSAIDS), activity modification and physical therapy as well as more invasive treatments such as epidural steroid injections and surgery. Although surgery has been demonstrated to provide some benefit to many individuals with spinal stenosis, ESI are being used with increasing frequency as a less invasive, potentially more cost effective and safer treatment for spinal stenosis. However, there is a lack of data to demonstrate the effectiveness and safety of epidural steroid injections for spinal stenosis, particularly in the older adults. Because of the compelling need for effective therapy for patients suffering from spinal stenosis and because epidural steroid injections are rapidly becoming standard of care for treating these patients - even in the absence of compelling clinical evidence - we are conducting a randomized, controlled trial in order to test the hypothesis that lumbar epidural steroid injections improve functional status and pain associated with spinal stenosis. The main objective of the study is to conduct a blinded, randomized controlled trial (RCT) in elderly patients with spinal stenosis to test if the effectiveness of epidural steroid injections (ESI) plus local anesthetic (LA) is greater than LA alone.

Conditions

• Spinal Stenosis
• Low Back Pain

Interventions

Type	Name	Description
PROCEDURE	Epidural steroid with local anesthetic injection	Epidural steroid injectate will be 2cc of 1% lidocaine followed by 1-3 cc of 40 mg/cc Kenalog (i.e. 40-120 mg Kenalog) or an equivalent steroid medication (depo-medrol 60-120 mg, betamethasone 6-12 mg or dexamethasone 8-10 mg) in an opaque syringe.
PROCEDURE	Epidural local anesthetic injection	Epidural injectate will be 2cc of .25-1% lidocaine followed by 1-3cc of 1% lidocaine in an opaque syringe.
DRUG	Epidural steroid injection	Epidural steroid injectate will be 2cc of .25 - 1% lidocaine followed by 1-3 cc of 40 mg/cc Kenalog (i.e. 40-120 mg Kenalog) or an equivalent steroid medication (depo-medrol 60-120 mg, betamethasone 6-12 mg or dexamethasone 8-10 mg) in an opaque syringe.
DRUG	Epidural local anesthetic injection	Epidural injectate will be 2cc of .25-1% lidocaine followed by 1-3cc of 1% lidocaine in an opaque syringe.

Timeline

• Start date: 2011-04-01
• Primary completion: 2013-08-01
• Completion: 2015-09-01
• First posted: 2010-11-10
• Last updated: 2017-12-13
• Results posted: 2017-12-13

Locations

10 sites across 1 country: United States