Predicting success of epidural injections for sciatica treatment

Prediction of Transforaminal Epidural Injection Success in Sciatica

Observational Leiden University Medical Center · NCT04540068

This study is trying to find out which factors can help predict how well epidural injections will work for people with sciatica caused by a herniated disc or spinal stenosis.

Quick facts

Study typeObservational
Enrollment388 (estimated)
Ages18 Years and up
SexAll
SponsorLeiden University Medical Center Academic / other
Locations1 site (Haarlem)
Trial IDNCT04540068 on ClinicalTrials.gov

What this trial studies

This observational study aims to develop a predictive model for treatment success following transforaminal epidural injections (TEI) in patients with lumbar radiculopathy due to lumbar disc herniation or spinal stenosis. It will collect demographic, clinical, and radiological data to identify factors that correlate with positive treatment outcomes. Additionally, the study will assess the short-term efficacy of TEI based on pain relief, functionality, and patient-reported recovery scores, as well as the rates of subsequent treatments and surgeries. The findings could help tailor treatment plans for better patient outcomes.

Who should consider this trial

Good fit: Ideal candidates include adults diagnosed with unilateral lumbar radiculopathy due to lumbar disc herniation or one-level spinal stenosis, confirmed by MRI.

Not a fit: Patients with severe multisegmental spinal disease, active malignancy, or those who have had previous treatments for the current episode of lumbar radiculopathy may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved patient selection for TEI, enhancing treatment effectiveness for those suffering from sciatica.

How similar studies have performed: While the approach of predicting treatment success based on clinical and radiological parameters is not widely established, similar studies have shown promise in improving treatment outcomes in related conditions.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosis of unilateral lumbar radiculopathy secondary to LDH or one-level spinal stenosis
* Diagnosis supported by magnetic resonance imaging (MRI) findings
* Scheduled appointment for TEI
* Access to e-mail
* Signed informed consent

Exclusion Criteria:

* Diagnosis of unilateral lumbar radiculopathy secondary to LDH or one-level spinal stenosis
* Age under 18 years
* Severe multisegmental spinal disease
* Anatomical abnormalities that may complicate the procedure technically (e.g. severe scoliosis)
* Active malignancy or infectious disease
* Use of immunosuppressive drugs
* Use of systemic corticosteroids in preceding 3 months
* Previous treatment with TEI for current episode of lumbar radiculopathy
* History of lower back surgery at the same lumbar level
* Circumstances that prevent treatment with TEI (e.g. use of anticoagulants that cannot be temporarily discontinued, allergy against steroids or local anaesthetic)
* Pregnancy
* Major language barrier

Where this trial is running

Haarlem

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 RadiculopathyLumbar Disc HerniationLumbar Spinal StenosisTransforaminal Epidural InjectionLumbar spineProspective cohort studyPrediction of success
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.