A Single-center, Real-world Experience of Chronic GVHD Treatment Using Ibrutinib, Imatinib, and Ruxolitinib and its Treatment Outcomes.

BACKGROUND: Chronic graft-versus-host disease (cGVHD) is a common cause of morbidity and mortality following allogeneic hematopoietic stem cell transplantation. Tyrosine kinase inhibitors (TKIs), including ruxolitinib, imatinib, and ibrutinib, have shown promising efficacy in cGVHD treatment. METHOD: A total of 43 patients who developed cGVHD and received at least one line of TKI therapy for cGVHD treatment were evaluated retrospectively. The overall response, clinical benefit (CB), corticosteroid dose reduction, failure-free survival (FFS), and overall survival (OS) were assessed. RESULT: A total of 62 lines of TKI therapy were evaluated, including ruxolitinib (n = 18), ibrutinib (n = 13), and imatinib (n = 31). With a 12-month median follow-up duration, 19/58 (32.8%), 20/41 (48.7%), and 17/29 (58.6%) responded to TKI therapy at 3, 6, and 12 months, respectively. The CB was observed in 80% of patients over time, allowing prednisone dose reduction in all 3 TKIs. The FFS rate at 12 months was higher in the imatinib (71%) and ruxolitinib groups (67%) than in the ibrutinib group (46%), while the OS rate at 12 months was similar among the three groups at 96%-100% in patients. In the sclerotic GVHD patient subgroup (n = 39), the overall response rate gradually increased over time. Ruxolitinib appeared to be as effective as imatinib and gradually improved the photographic range of motion score in sclerotic GVHD patients. CONCLUSION: TKI drugs ruxolitinib, imatinib, and Ibrutinib are effective and feasible for cGVHD treatment. Ruxolitinib is as effective as imatinib for sclerotic GVHD.

Outcomes of Patients Diagnosed With Chronic Lymphocytic Leukemia After Allogeneic Hematopoietic Stem Cell Transplantation: Results From a Tertiary Care Center.

BACKGROUND: Allogeneic hematopoietic stem cell transplantation (allo-HCT) is currently the only curative treatment for patients with chronic lymphocytic leukemia (CLL). METHODS: We analyzed the outcomes of 93 patients (median age: 52 years) who underwent allo-HCT at our center between 1989 and 2019. RESULTS: After a median follow-up of 35 months, relapse was observed in 15.1% (n = 14) patients. The estimated 2-year non-relapse mortality, relapse-free survival, and overall survival (OS) were 38.1%, 54.2%, and 58.7%, respectively. The ECOG performance status ≥ 2 (hazard ratio [HR]: 4.1; p = .001) and use of total body irradiation (in a myeloablative conditioning regimen; HR: 2.64; p = .005) were predictive of poor OS after multivariable analysis. The occurrence of sinusoidal obstruction syndrome/veno-occlusive disease post-transplant was associated with poor survival (p = .001). CONCLUSION: Although the use of kinase and bcl2 inhibitors may result in a decrease in the number and need of transplants, allo-HCT remains a viable option in selected patients with high-risk CLL and good performance status.