Effectiveness of Cervical Transforaminal Epidural Steroid Injection

Summary

Study Purpose:

This study is intended to monitor outcomes for 1 year following cervical TFESI. Based on current clinic volume and enrollment rates into a current study of cervical epidural injections that is nearing completion, we conservatively estimate a study enrollment period of 18 months and a total period of 2.5 years from enrollment to final follow-up data collection. If the study were to theoretically start enrolling in July 2019, we would anticipate completion by February 2022.

Objectives:

1. Determine the proportion of patients with an 80% or greater improvement in arm and neck numerical rating scale pain (NRS) score following an initial cervical transforaminal steroid injection (TFESI) at 4 weeks post-injection and the duration of response up to 12 months.
2. Determine the proportion of patients with a 50%-79% improvement in arm and neck NRS score following an initial cervical TFESI at 4 weeks post-injection and the duration of response up to 12 months.
3. Determine the proportion of patients with less than 50% improvement in arm and neck NRS score following an initial cervical TFESI at 4 weeks post-injection and the duration of response up to 12 months.
4. Determine the proportion of patients with an initial injection plus up to 3 additional injections that maintain 80% or greater, as well as 50-79%, improvement in arm and neck NRS score for up to 12 months.
5. Determine the proportion of patients with a clinically significant change in function defined by a minimally clinically significant change (MCIC) (≥10 point improvement ) or 30% improvement in Neck Disability Index (NDI) score following an initial cervical TFESI at 4 weeks post-injection and the duration of response up to 12 months.
6. Determine the proportion of patients with clinically significant improvement in the Medication Quantification Scale (MQS III) score (≥6.8 point change , equivalent to 10 oral morphine equivalents ) following an initial cervical TFESI at 4 weeks post-injection and the duration of response up to 12 months.

6\. Determine the proportion of patients with clinically significant improvement in the categorical EuroQol 5 Dimensions tool (EQ-5D) defined by ≥0.03 following an initial cervical TFESI at 4 weeks post-injection and the duration of response up to 12 months.

7\. Compare patient demographic, clinical, and imaging characteristics between response groups and perform predictive modeling to better understand variables that increase the likelihood of a successful clinical outcome.

8\. Report adverse effects.

Conditions

• Cervical Radiculopathy
• Cervical Spondylosis
• Disk, Herniated

Interventions

DRUG

Cervical Transforaminal Epidural Injection with dexamethasone sodium phosphate

Transforaminal epidural steroid injection: Injection of 1 to 2 mL of 1% lidocaine to the skin and subcutaneous tissues, a 25-gauge spinal needle will be placed at the level and side of radicular pathology, based on clinical correlation of symptoms/signs and magnetic resonance imaging findings. Advancement to the appropriate target position in the neuroforamen will be performed under fluoroscopic guidance. Satisfactory target position achieved and confirmed in both anterior-posterior and oblique views, 0.5 to 1 mL of contrast will be injected under live fluoroscopic observation with or without digital subtraction angiography depending on suggestion of vascular uptake. Upon confirmation of a satisfactory epidural contrast pattern without vascular uptake, the injectate will be delivered: dexamethasone sodium phosphate 1mL (10mg/mL) and 0.5 ml of 1% preservative-free lidocaine (total volume 1.5 mL).

Sponsors & Collaborators

• University of Utah

  lead OTHER

Study Design

Allocation

NA

Purpose

PREVENTION

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Max Age

80 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2018-10-23

Primary Completion

2022-10-31

Completion

2023-12-07

FDA Drug

Yes

Countries

• United States

Study Locations