** Shares of Organogenesis ORGO.O fall 11.1% to $4.16 in extended trade
** Company says its experimental therapy, ReNu, did not meet the main goal in its second late-stage trial for knee osteoarthritis, despite showing numerical improvement in pain reduction
** Knee osteoarthritis is a degenerative joint condition where the protective cartilage in the knee wears away, leading to pain, stiffness, swelling and a grinding or crackling sensation with movement
** As of last close, stock up 46.2% YTD