Study to Evaluate the Safety and Preliminary Efficacy of IDCT, a Treatment for Symptomatic Lumbar Disc Degeneration

Inclusion Criteria: * Diagnosis of early to moderate degenerative disc disease (DDD), Modified Pfirrmann Grade 3-7. * Chronic low-back pain for at least 6 months prior to screening; unresponsive to at least 3 months of conservative care. * Low-back pain of 40 to 90 mm on the VAS * ODI score of 30 to 90. Exclusion Criteria: * Symptomatic involvement of more than one lumbar disc. * Other persistent pain/nerve issues including, for example, radiculopathy, leg pain, Cauda Equine syndrome, etc. * Fracture of the spine, previous lumbar spine surgery or previous treatment of the target disc. * Evidence of dynamic instability on lumbar flexion-extension radiographs. * Grade 2 or higher spondylolisthesis at the target disc, lumbar spondylitis or other undifferentiated spondyloarthropathy, or Type III Modic changes around the target disc. * Clinical suspicion of a full thickness annular tear at the target disc or other abnormal disc morphology. * Subjects who test positive for communicable disease, have significant systemic disease, or are prone to infection. * Patients who are deemed unsuitable for clinical study participation by the investigator.