Do you find addition of quinacrine to methotrexate or mycophenolate helpful in treatment of refractory CADM?

Anti-malarials are definitely one of the options for treating the skin manifestations in CADM, but the first line drug of choice would be hydroxychloroquine either alone or in combination with other DMARDs like methotrexate. In cases of either hydroxychloroquine failure or toxicity [retinal pigmenta...