Journal of hematology & oncology · 2026
Final analysis of phase 2 clinical trial of ruxolitinib and azacitidine combination therapy in patients with myelodysplastic syndrome/myeloproliferative neoplasms.
СтатьяКлиническое исследование II фазыНазвание и аннотация: Перевод в очереди
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Arora Sankalp, Senapati Jayastu, Deshmukh Indraneel, Bose Prithviraj, Masarova Lucia, Loghavi Sanam, Wang Xuemei, Nogueras-Gonzalez Graciela, Montalban-Bravo Guillermo, Borthakur Gautam, DiNardo Courtney D, Kadia Tapan, Zhou Lingsha, Saenz Dyana, Halim Habiba, Alvarado Yesid, Ohanian Maro, Takahashi Koichi, Short Nicholas J, Jabbour Elias, Ravandi Farhad, Garcia-Manero Guillermo, Pemmaraju Naveen, Daver Naval G
Аннотация
BACKGROUND: Myelodysplastic 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.
METHODS: This 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/m2 on days 1-5 was added starting cycle 4. Primary endpoint was objective response rate per the 2015 International Consortium Proposal (ICP) MDS/MPN response criteria.
RESULTS: From 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%).
CONCLUSIONS: AZA-RUX therapy led to durable responses and encouraging OS in MDS/MPN with a manageable safety profile.
TRIAL REGISTRATION: NCT01787487, (clinicaltrials.gov, date: 2/6/2013).
METHODS: This 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/m2 on days 1-5 was added starting cycle 4. Primary endpoint was objective response rate per the 2015 International Consortium Proposal (ICP) MDS/MPN response criteria.
RESULTS: From 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%).
CONCLUSIONS: AZA-RUX therapy led to durable responses and encouraging OS in MDS/MPN with a manageable safety profile.
TRIAL REGISTRATION: NCT01787487, (clinicaltrials.gov, date: 2/6/2013).