Combining Limaprost with Epidural Steroid Injection for Lumbar Spinal Stenosis

Effect of Limaprost in Combination With Transforaminal Epidural Steroid Injection for the Treatment of Lumbar Spinal Stenosis: a Prospective, Double-blind, Randomized Controlled Trial

Not applicable Interventional Seoul National University · NCT04876612

This study is testing if adding limaprost to an epidural steroid injection can help people with lumbar spinal stenosis walk better and feel less pain.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment104 (estimated)
Ages18 Years to 85 Years
SexAll
SponsorSeoul National University Academic / other
Locations1 site (Seoul)
Trial IDNCT04876612 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of limaprost (Opalmon®) in improving walking ability and reducing pain in patients with lumbar spinal stenosis who are undergoing transforaminal epidural steroid injection (TFESI). Participants are randomly assigned to receive either limaprost or a placebo after the TFESI procedure. The study monitors patients over a 12-week period, with assessments at 4, 8, and 12 weeks to measure outcomes related to pain and mobility. The aim is to determine if limaprost enhances the benefits of TFESI compared to a placebo.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 85 with a diagnosis of lumbar spinal stenosis who are scheduled for TFESI due to low back or leg pain.

Not a fit: Patients with contraindications such as coagulopathy, severe cardiovascular disease, or those who have had recent lumbar spine surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve pain management and mobility for patients suffering from lumbar spinal stenosis.

How similar studies have performed: While the combination of limaprost with TFESI is a novel approach, similar studies have shown positive outcomes with steroid injections for lumbar spinal stenosis.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients aged 18 to 85 years

Patients with a new or known diagnosis of lumbar spinal stenosis on Magnetic Resonance Imaging (MRI)

Patients scheduled to undergo TFESI due to low back pain or leg pain

Exclusion Criteria:

Refusal of a patient

Coagulopathy

Systemic infection or local infection at the needle injection site

Patients with lumbar instability

Neoplasms in the needle path

Allergy to amide-type local anesthetics

Decreased cognition to the extent that NRS is incomprehensible

Patients with peripheral vascular disease (including peripheral arterial disease)

Patients taking anticoagulant or antiplatelet drugs

Patients with severe cardiovascular disease or liver or kidney disease

Patinets with cerebral infarction

Patinets with a history of gastrointestinal bleeding

Patinets who have had lumbar spine surgery or are expected to receive it within 12 months

Patients who show positive in the straight leg elevation test

Patients who are allergic or sensitive to limaprost (Opalmon®) and placebo or their ingredients

Where this trial is running

Seoul

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Lumbar Spinal Stenosis
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.