Ruxolitinib in the management of steroid-resistant/-dependent acute and chronic graft-versus-host disease: results of routine practice in an academic centre

Ruxolitinib in patients with graft versus host disease (GvHD): findings from a compassionate use program

The ruxolitinib compassionate use (CU) program offered ruxolitinib to patients ≥2 years of age with confirmed steroid-resistant acute or chronic graft-versus-host disease (aGvHD and cGvHD, respectively). Data from 1180 patients (n = 775, 370 and 35 with cGvHD, aGvHD, and non-specified GvHD, respectively) were analyzed. Most patients had severe cGvHD (56%) or stage III/IV aGvHD (70%) disease and had previously received corticosteroids ( > 80%); ruxolitinib was requested primarily as a second-/third-line option. Patients <12 and ≥12 years old most often received the recommended ruxolitinib doses (5 mg twice daily [BID] and 10 mg BID, respectively); however, 23% and 30% of ≥12 year olds with cGvHD and aGvHD, respectively, received the lower dose of 5 mg BID. Notably, corticosteroid usage decreased with ruxolitinib treatment; at the initial ruxolitinib request, 81% and 91% of patients with cGvHD and aGvHD, respectively, were receiving corticosteroids whereas at resupply, 62% and 64%, respectively, were receiving corticosteroids. Eighty two percent of evaluable patients with cGvHD had a complete or partial response to treatment and 56% of evaluable patients with aGvHD had a best response of grade 0/I. These findings demonstrate the rapid and positive effects of ruxolitinib in patients with GvHD in a real-world setting.

Extracorporeal photopheresis in acute and chronic steroid‑refractory graft-versus-host disease: an evolving treatment landscape

Patients with steroid-refractory graft-versus-host disease (GvHD) are known to have a poor prognosis and for decades no approved drug has been available to treat this serious condition. Although ruxolitinib, a selective Janus kinase (JAK)1/2 inhibitor demonstrated significantly higher response rates in randomized trials compared to the best available therapy, and thus, is of benefit in both acute as well as chronic GvHD, there is an urgent medical need to improve results, such as durability of responses, response in eye, liver and lung manifestations and reduction of infectious complications. In this "Review" article we would like to offer strategies for improving treatment results in patients with steroid-refractory GvHD by combining ruxolitinib with extracorporeal photopheresis (ECP), a leukapheresis-based immunomodulatory treatment frequently applied in T-cell mediated immune disease including GvHD. Our article explores key published evidence supporting the clinical efficacy of both ruxolitinib and ECP in the treatment of GvHD and highlights their potentially complementary mechanisms of action.