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SI-6603 Versus Placebo in Patients With Lumbar Disc Herniation

A Multicenter, Randomized, Double-blind Recommended Dose-finding Study of SI-6603 in Patients With Lumbar Disc Herniation (Phase II/III Study)

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00634946
Enrollment
195
Registered
2008-03-13
Start date
2008-01-31
Completion date
2010-08-31
Last updated
2023-03-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lumbar Vertebra Hernia

Keywords

Chemonucleolysis, Lumbar Vertebrae, Hernia

Brief summary

The purpose of this study is to determine whether SI-6603 is effective in the treatment of lumbar disc herniation.

Interventions

SI-6603 is administrated into the nucleus pulposus of an intervertebral disc.

DRUGPlacebo

Placebo is administrated into the nucleus pulposus of an intervertebral disc.

Sponsors

Seikagaku Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
20 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients with lumbar disc herniation (L4-L5 or L5-S1) as assessed by MRI and clinical symptoms corresponding to position of the impaired nerve root * Patients assessed as positive in the SLR test * Patients with sciatica in either lower leg * Patients with no improvement from pharmacotherapy or concomitant treatment with drug and nerve block

Exclusion criteria

* Patients who have 2 or more lumbar disc herniations as assessed by MRI * Patients with extrusion-type or sequestration-type herniation in whom a rupture into the posterior longitudinal ligament is identified by MRI * Patients who have received nerve block within 3 weeks before screening * Patients who have undergone lumbar operation, chemonucleolysis, or percutaneous nucleotomy

Design outcomes

Primary

MeasureTime frame
Changes in leg pain from baseline.13 weeks

Secondary

MeasureTime frame
The leg painAt each assessment time point

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026