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SEP 14 2026
CRL · 15 DAYS AGO

Seikagaku — SI-6603

for knee osteoarthritis

NDA

FDA issued a Complete Response Letter for the BLA for SI-6603, a hyaluronidase inhibitor for knee osteoarthritis.

About

Osteoarthritis is a degenerative joint disease where the breakdown of cartilage and bone causes pain, stiffness, and swelling, often in the knees, which can limit daily activities. SI-6603 is a drug designed to inhibit the enzyme hyaluronidase, which breaks down a key lubricating substance in the joint. By blocking this enzyme, the treatment may help preserve joint lubrication and potentially slow the progression of symptoms.

Pivotal trial

NCT02421601 Phase 3 completed NCT02421601

The purpose of this study is to evaluate the safety and efficacy of SI-6603(Condoliase) in patients with lumbar disc herniation.

Source: ClinicalTrials.gov

Also in development