About this trial
This study aims to evaluate the efficacy of interlaminar steroid injections at treating pain in lumbar radiculopathy at varying doses, to evaluate the efficacy of interlaminar steroid injections at improving quality of life and function in lumbar radiculopathy at varying doses, and to evaluate difference in efficacy between triamcinolone and dexamethasone interlaminar steroid injections at treating pain in lumbar radiculopathy at varying doses, with the overarching hypotheses that there is no difference in reported pain reduction, quality of life, or function among patients receiving low, moderate, or high doses, and no difference in reported pain reduction between triamcinolone and dexamethasone.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults able to consent
Lumbar radiculopathy with MRI-confirmed pathology
No history of back surgery
Use of interlaminar approach lumbar spine injections
Disqualifiers
Adults unable to consent
Individuals who are not yet adults (infants, children, teenagers)
Pregnant women
History of back surgery
Trial design
Parallel
Treatments tested in this trial
Triamcinolone 10 Mg/mL Injectable Suspension
DrugA single 10 mg Triamcinolone interlaminar lumbar epidural steroid injection administered in the lumbar spine.
Triamcinolone 40 Mg/mL Injectable Suspension
DrugA single 40 mg Triamcinolone interlaminar lumbar epidural steroid injection administered in the lumbar spine.
Triamcinolone 80 Mg/mL Injectable Suspension
DrugA single 80 mg Triamcinolone interlaminar lumbar epidural steroid injection administered in the lumbar spine.
Dexamethasone 2 MG
DrugA single 2 mg Dexamethasone interlaminar lumbar epidural steroid injection administered in the lumbar spine.
Dexamethasone 4mg
DrugA single 4 mg Dexamethasone interlaminar lumbar epidural steroid injection administered in the lumbar spine.
Dexamethasone 8 MG
DrugA single 8 mg Dexamethasone interlaminar lumbar epidural steroid injection administered in the lumbar spine.
Treatment groups
6
Treatment groupsSee each treatment group below.
Trial outcomes
Primary outcomes
Pain Intensity (Numeric Rating Scale 0-10) (NRS)
Pain intensity will be measured using the Numeric Rating Scale (NRS), a validated 0-10 verbal rating scale in which participants rate their pain on a continuum from 0 (pain) to 10 (max pain). Higher scores indicate greater pain severity.
Secondary outcomes
Physical Function Oswestry Disability Index (ODI)
Physical function will be measured using the Oswestry Disability Index (ODI), a validated Physical Function Scale from 0% to 100%. The ODI consists of multiple sections, each scored from 0 to 5, with higher scores indicating greater functional impairment. The total score is summed and divided by 50 when all sections are completed, or by 45 if the optional section is excluded. Final scores are expressed as a percentage ranging from 0% (minimal disability) to 100% (bed-bound), with higher percentages representing more severe disability.
Quality of Life Short Form 36 (SF-36)
Quality of life will be measured using Quality of Life Measure with domain scores from 0 to 100 with, higher scores indicating better health or fewer limitations in that domain.
Sponsors and contacts
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