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A Study of SI-6603 in Patients With Lumbar Disc Herniation

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Seikagaku Corporation Identifier:
First received: September 4, 2013
Last updated: March 13, 2017
Last verified: March 2017
The purpose of this study is to evaluate the efficacy and safety of SI-6603 (condoliase) in patients with lumbar disc herniation.

Condition Intervention Phase
Intervertebral Disc Disease Lumbar Disc Disease Drug: Condoliase Drug: placebo Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment

Resource links provided by NLM:

Further study details as provided by Seikagaku Corporation:

Primary Outcome Measures:
  • Leg pain [ Time Frame: 13 weeks ]
    Assessed by Visual Analog Scale (VAS)

Secondary Outcome Measures:
  • Responder rate evaluation [ Time Frame: 13 weeks ]
    Assessed by leg pain (VAS), Oswestry Disability Index disability questionnaire, neurologic status (motor, sensory, reflexes), and no treatment failure

Estimated Enrollment: 360
Study Start Date: September 2013
Estimated Study Completion Date: August 2017
Primary Completion Date: November 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: SI-6603
SI-6603 is administrated into the nucleus pulposus of the intervertebral disc
Drug: Condoliase
1.25U, intradiscal injection, one time
Sham Comparator: Control
Sham injection
Drug: placebo


Ages Eligible for Study:   30 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts 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 leg.
  • Patients with no improvement from conservative treatment

Exclusion Criteria:

  • Patients who have 2 or more lumbar disc herniations as assessed by MRI.
  • Patients in whom a rupture into the posterior longitudinal ligament is identified by MRI.
  • Patients who have received spinal injection, epidural injection, nerve block within 3 weeks prior to the time of informed consent.
  • Patients who have undergone lumbar operation, or lumbar percutaneous nucleotomy or lumbar intradiscal therapies
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01941563

  Show 32 Study Locations
Sponsors and Collaborators
Seikagaku Corporation
  More Information

Responsible Party: Seikagaku Corporation Identifier: NCT01941563     History of Changes
Other Study ID Numbers: 6603/1131
Study First Received: September 4, 2013
Last Updated: March 13, 2017

Additional relevant MeSH terms:
Spinal Diseases
Intervertebral Disc Displacement
Intervertebral Disc Degeneration
Bone Diseases
Musculoskeletal Diseases
Pathological Conditions, Anatomical processed this record on September 21, 2017