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CASE REPORT article

Front. Oncol.

Sec. Hematologic Malignancies

Volume 15 - 2025 | doi: 10.3389/fonc.2025.1644661

This article is part of the Research TopicBCL-2 Family Inhibitors in Hematologic MalignanciesView all 9 articles

Durable Response to Venetoclax, Azacytidine, and Ruxolitinib in Chronic-Phase Myelofibrosis Resistant to Ruxolitinib: A Case Report and Literature Review

Provisionally accepted
Xiaohong  LiuXiaohong Liu1Xiujuan  ZhangXiujuan Zhang1Hongxia  ShiHongxia Shi2*
  • 1First People’s Hospital of Yangquan, Yangquan, China
  • 2Peking University People's Hospital, Beijing, China

The final, formatted version of the article will be published soon.

Myelofibrosis (MF) is a philadelphia chromosome-negative chronic myeloproliferative neoplasm.It has a worse prognosis than polycythemia vera and essential thrombocythemia.At present,both Chinese and foreign guidelines recommend ruxolitinib as first-line treatment for IPSS/DIPSS/DIPSS-Plus patients with splenomegaly in intermediate-risk-2 and high-risk MF-CP.However,long-term follow-up revealed possible increase in the discontinuation rate of ruxolitinib due to drug resistance and other reasons with the prolongation of the treatment duration. At this study,it imposes a great challenge for clinical management owing to the lack of standard treatment for patients who have lost efficacy due to drug resistance,and the absence of subsequent treatment strategies. Significantly, venetoclax combined with azacytidine, with or without the use of ruxolitinib, was reported to be effective and safe for patients in MF-accelerated/acute phase.Here, we report a case of MF-CP patient who was unresponsive to ruxolitinib, with therapeutic response after applying venetoclax and azacytidine in combination with ruxolitinib. After treatment, the patient showed improved condition. After two courses of treatment with venetoclax and azacytidine combined with ruxolitinib, the patient has been continuously treated with oral ruxolitinib and has achieved a therapeutic effect for more than 1 year. The treatment response of this patient we reported provides a new safe and effective treatment method for MF-CP patients who are no longer responsive to ruxolitinib.

Keywords: myelofibrosis, Ruxolitinib, drug-resistant, venetoclax, azacytidine, Treatment

Received: 10 Jun 2025; Accepted: 24 Jul 2025.

Copyright: © 2025 Liu, Zhang and Shi. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Hongxia Shi, Peking University People's Hospital, Beijing, China

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