Trial reportJournal of hematology & oncology2026
Final analysis of phase 2 clinical trial of ruxolitinib and azacitidine combination therapy in patients with myelodysplastic syndrome/myeloproliferative neoplasms.
Trial report in Journal of hematology & oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01787487 (Evaluation of Ruxolitinib and Azacytidine Combination as a Therapy for Patients With Myelofibrosis and Myelodysplastic Syndrome/ Myeloproliferative Neoplasm), which is not on this map. Not yet cited in PubMed.
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Evaluation of Ruxolitinib and Azacytidine Combination as a Therapy for Patients With Myelofibrosis and Myelodysplastic Syndrome/ Myeloproliferative Neoplasm
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24 authors.
Funding
Abstract
backgroundMyelodysplastic syndrome and myeloproliferative neoplasm (MDS/MPN) overlap syndromes are characterized by the presence of features of both MDS and MPN and have a poor prognosis. We conducted a phase 2 clinical trial evaluating the combination of Azacitidine (AZA) and Ruxolitinib (RUX) in MDS/MPN, with interim analysis showing an objective response rate of 57%. Herein, we report the final analysis from this clinical trial, including long-term survival data.
methodsThis was an open-label phase 2 clinical trial including adult patients in 2 diagnostic arms: myelofibrosis (arm 1) and MDS/MPN (arm 2). This manuscript reports outcomes of MDS/MPN patients. RUX 5-20 mg twice daily (per RUX label) was administered in 28-day cycles, and AZA 25 mg/m
resultsFrom 5/2013 to 8/2022, 52 patients were treated with a median age of 68 years (range, 39-82). Disease subtypes were MDS/MPN-Unclassifiable in 24 patients (46%), chronic myelomonocytic leukemia in 23 patients (44%), and atypical chronic myeloid leukemia in 5 patients (10%). Majority of patients (n = 40, 77%) had intermediate-2/high-risk disease by Dynamic International Prognosis Scoring System criteria. Objective responses were attained in 30 patients (58%), with a median duration of response of 13.6 months (95% CI: 6.4-41.1). After a median follow up of 88.5 months, 13 (25%) patients are alive, with median overall survival (OS) of 26.7 months (95% CI: 16.5-52.7), 5-year OS 33%. Median OS in MDS/MPN-U and CMML was 52.7 months (5-year OS 46%) and 17.5 months (5-year OS 27%), respectively. Twelve patients (23%) underwent allogeneic stem cell transplantation; with median OS not reached, 5-year OS 51%. Transformation to acute myeloid leukemia occurred in 13 patients (25%). The most common grade 3-5 adverse events (AEs) regardless of attribution were anemia (31, 60%), thrombocytopenia (27, 52%) and pneumonia (17, 33%). AE-related treatment discontinuation occurred in only 3 patients (6%).
conclusionsAZA-RUX therapy led to durable responses and encouraging OS in MDS/MPN with a manageable safety profile.
trial registrationNCT01787487, (clinicaltrials.gov, date: 2/6/2013).
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