Patent: 4,439,423
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Summary for Patent: 4,439,423
Title: | Chymopapain and method for its use |
Abstract: | An improved method for treating an intervertebral spinal disc in a mammalian subject which disc exhibits an abnormal condition, characterized by a reduced risk of toxic effect to the subject is provided which comprises, injecting in said disc an amount of a pharmaceutically acceptable solution of a purified chymopapain essentially free of proteolytically inactive and/or toxic protein components, said purified chymopapain being used in an amount sufficient to selectively dissolve the nucleus pulposus of said disc. Pharmaceutical compositions are also provided for said method which include a purified proteolytically active lyophilized chymopapain, essentially free of proteolytically inactive and toxic components, and an activating amount of a pharmaceutically acceptable reducing agent. |
Inventor(s): | Smith; William S. (Libertyville, IL) |
Assignee: | Smith Laboratories, Inc. (Rosemont, IL) |
Application Number: | 06/263,197 |
Patent Claims: | see list of patent claims |
Details for Patent 4,439,423
Applicant | Tradename | Biologic Ingredient | Dosage Form | BLA | Approval Date | Patent No. | Expiredate |
---|---|---|---|---|---|---|---|
Discure Medical, Llc | CHYMODIACTIN | chymopapain | For Injection | 018663 | 11/10/1982 | ⤷ Try a Trial | 2040-04-01 |
Discure Medical, Llc | CHYMODIACTIN | chymopapain | For Injection | 018663 | 08/21/1984 | ⤷ Try a Trial | 2040-04-01 |
>Applicant | >Tradename | >Biologic Ingredient | >Dosage Form | >BLA | >Approval Date | >Patent No. | >Expiredate |