@jnwr Frozen Shoulder or Adhesive Capsulitis is such a painful and debilitating condition - the good news is that it can almost always be cured conservatively. The bad news is that the therapy hurts, and you may have to do it daily for months to get results.
Here is a recent report of multi-modal, non-surgical treatments and their effectiveness:
https://jrsonweb.com/wp-content/uploads/2024/12/Article_5_JRS-Jul-Dec-2024.pdf
While you have an interesting theory about the anti-fibrin effects of Nattokinase, how would you deliver it to the affected joint? I also find it interesting that even those evaluating alternative therapies have not made such a connection - even in Japan where it is widely consumed.