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Papers of the Week

2022 May 17

Cancers (Basel)



Adverse Events in 1406 Patients Receiving 13,780 Cycles of Azacitidine within the Austrian Registry of Hypomethylating Agents-A Prospective Cohort Study of the AGMT Study-Group.


Leisch M, Pfeilstöcker M, Stauder R, Heibl S, Sill H, Girschikofsky M, Stampfl-Mattersberger M, Tinchon C, Hartmann B, Petzer A, Schreder M, Kiesl D, Vallet S, Egle A, Melchardt T, Piringer G, Zebisch A, Machherndl-Spandl S, Wolf D, Keil F, et al.
Cancers (Basel). 2022 May 17; 14(10).
PMID: 35626063.


Azacitidine is the treatment backbone for patients with acute myeloid leukemia, myelodysplastic syndromes and chronic myelomonocytic leukemia who are considered unfit for intensive chemotherapy. Detailed reports on adverse events in a real-world setting are lacking. To analyze the frequency of adverse events in the Austrian Registry of Hypomethylating agents. To compare real-world data with that of published randomized clinical trials. A total of 1406 patients uniformly treated with a total of 13,780 cycles of azacitidine were analyzed. Hematologic adverse events were the most common adverse events (grade 3-4 anemia 43.4%, grade 3-4 thrombopenia 36.8%, grade 3-4 neutropenia 36.1%). Grade 3-4 anemia was significantly more common in the Registry compared to published trials. Febrile neutropenia occurred in 33.4% of patients and was also more common in the Registry than in published reports. Other commonly reported adverse events included fatigue (33.4%), pain (29.2%), pyrexia (23.5%), and injection site reactions (23.2%). Treatment termination due to an adverse event was rare (5.1%). The safety profile of azacitidine in clinical trials is reproducible in a real-world setting. With the use of prophylactic and concomitant medications, adverse events can be mitigated and azacitidine can be safely administered to almost all patients with few treatment discontinuations.