Retrospective study of juvenile dermatomyositis shows 1st line Rx w/ MTX is not effective, esp in MSA Ab+ pts. 45 JDM pts (2/3 severe) Rx w/ 6 mos MTX + steroids; inactive dz seen in 31%, with 42% muscle and 33% skin responses. MSA neg pts did better https://t.co/PDubjbcMe2 https://t.co/rGCSZ3ZT9U