The following article contains some more information regarding the recent paper on the (possible) link between the LAG3 protein and PD.

Experimental Cancer Therapies Could be Viable to Treat Parkinson’s

"Several clinical trials are testing antibodies blocking LAG3 as cancer immunotherapy. Ted Dawson said he has initiated discussions with potential sponsors about testing such antibodies in Parkinson’s patients. He envisions such a treatment could benefit patients ranging from pre-symptomatic, up to mid-stage disease."

“We are really excited and optimistic about the findings, . . . I think our findings can immediately move into patients, since there are really good LAG3 therapeutics already tested in cancer patients.”